WO2011105507A1 - 細胞分析装置 - Google Patents
細胞分析装置 Download PDFInfo
- Publication number
- WO2011105507A1 WO2011105507A1 PCT/JP2011/054174 JP2011054174W WO2011105507A1 WO 2011105507 A1 WO2011105507 A1 WO 2011105507A1 JP 2011054174 W JP2011054174 W JP 2011054174W WO 2011105507 A1 WO2011105507 A1 WO 2011105507A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cell
- cells
- flow path
- sample
- image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/30—Staining; Impregnating ; Fixation; Dehydration; Multistep processes for preparing samples of tissue, cell or nucleic acid material and the like for analysis
- G01N1/31—Apparatus therefor
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/06—Lysis of microorganisms
- C12N1/066—Lysis of microorganisms by physical methods
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4077—Concentrating samples by other techniques involving separation of suspended solids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N15/14—Optical investigation techniques, e.g. flow cytometry
- G01N15/1429—Signal processing
- G01N15/1433—Signal processing using image recognition
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N15/14—Optical investigation techniques, e.g. flow cytometry
- G01N15/1456—Optical investigation techniques, e.g. flow cytometry without spatial resolution of the texture or inner structure of the particle, e.g. processing of pulse signals
- G01N15/1459—Optical investigation techniques, e.g. flow cytometry without spatial resolution of the texture or inner structure of the particle, e.g. processing of pulse signals the analysis being performed on a sample stream
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6408—Fluorescence; Phosphorescence with measurement of decay time, time resolved fluorescence
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N15/14—Optical investigation techniques, e.g. flow cytometry
- G01N15/149—Optical investigation techniques, e.g. flow cytometry specially adapted for sorting particles, e.g. by their size or optical properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4077—Concentrating samples by other techniques involving separation of suspended solids
- G01N2001/4094—Concentrating samples by other techniques involving separation of suspended solids using ultrasound
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/645—Specially adapted constructive features of fluorimeters
- G01N2021/6482—Sample cells, cuvettes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/11—Automated chemical analysis
Definitions
- the present invention relates to a cell analyzer.
- cell differentiation 1) Visual morphological cell classification: For example, examination of bladder cancer and urethral cancer by examination of atypical cells appearing in urine, classification of atypical cells in blood, cancer examination by cytology in tissues, etc. Can give. 2) Cell classification by cell surface antigen (marker) staining by the fluorescent antibody method: Cell surface antigens generally called CD markers are stained with a specific fluorescently labeled antibody. Cell sorting by cell sorters, flow cytometers and tissues Used for cancer screening by staining. Of course, these are widely used not only for medical purposes but also for cell physiology research and industrial cell utilization.
- stem cells containing stem cells are roughly separated using a fluorescent dye incorporated into the cells as a reporter, and then the target stem cells are separated by actually culturing. This is because an effective marker for stem cells has not yet been established, and the target cells are substantially separated by using only those actually cultured and differentiated.
- Such separation and recovery of specific cells in the culture medium is an important technique in biological and medical analysis.
- the cells When the cells are separated based on the difference in specific gravity of the cells, they can be separated by a velocity sedimentation method. However, if there is almost no difference in specific gravity between cells that distinguishes unsensitized cells from sensitized cells, the cells are separated one by one based on information stained with fluorescent antibodies or visual information. There is a need to.
- the cell sorter isolates and drops cells after fluorescence staining in a charged droplet in units of one cell, and based on the presence or absence of fluorescence in the droplet and the amount of light scattering, In the process of dropping, a high electric field is applied in any direction in the normal direction to the direction of drop, and the drop direction of the drop is controlled and fractionated into multiple containers placed underneath.
- Non-patent document 1 Kamarck, ME, Methods Enzymol. Vol. 151, p150-165 1987 (1987)).
- the cell sorter created using this microfabrication technique has a slow response speed of sample separation to the observation means, and in order to put it to practical use, a separation processing method that does not damage the sample and has a faster response is required. there were.
- the separation efficiency of the device cannot be sufficiently increased even at a dilute cell concentration. If the sample is concentrated in a separate device, it is not only difficult to recover the concentrated solution without loss, but it is also desirable for regenerative medicine where cells are contaminated in a complicated pretreatment stage. The problem was that no problems occurred.
- Patent Document 1 JP 2003-107099; Patent Document 2: JP 2004-85323; Patent Document 3: WO 2004 / 101731).
- This is a cell sorter that is sufficiently practical at the laboratory level, but for general use for regenerative medicine, new technological development is required for pretreatment such as liquid transport, recovery, and sample preparation. is there.
- CTCs peripheral blood circulating cancer cells
- anticancer agents for specific targets have been developed one after another, and if the type of malignant tumor in the blood can be identified, it has become possible to select an anticancer agent that effectively destroys the cells. If technology to monitor CTCs flowing in the blood is realized, the presence of malignant tumor cells that cause metastatic cancer flowing in the blood can be quantitatively measured, thereby quantifying the effect of the administered anticancer drug. This is the realization of the world's first method that can be continuously evaluated and can not only prevent the administration of unnecessary and excessive anticancer drugs, but also detect the presence or absence of recurrence.
- PCR polymerase chain reaction
- DNA templates such as complementary DNA reverse transcribed from genomic DNA or messenger RNA in a mixture of various types of nucleic acids, two or more primers, a thermostable enzyme, a salt such as magnesium, and four types
- dATP, dCTP, dGTP, dTTP deoxyribonucleoside triphosphates
- the step of separating the nucleic acid into single strands the step of binding the primer to the separated nucleic acid, and the primer bound by a thermostable enzyme
- a specific nucleic acid sequence can be amplified by repeating the hybridization step using a nucleic acid as a template at least once.
- a thermal cycle is used by raising and lowering the temperature of a reaction vessel used for a DNA amplification reaction.
- temperature change mechanisms used there, for example, a mechanism for changing the temperature of the reaction vessel containing the sample by a heater or Peltier element, heat exchange using hot air, and a heater block with different temperatures for the reaction vessel.
- a mechanism for changing the temperature by alternately contacting the liquid bath and a mechanism for changing the temperature by flowing a sample in a flow path having regions of different temperatures.
- a light cycler Light Cycler manufactured by Roche Corporation is one of the fastest commercially available devices.
- the light cycler introduces a sample, a DNA polymerase, a DNA piece serving as a primer, and a fluorescent labeling dye for measurement into each of a plurality of glass capillary tubes, and the temperature of a minute droplet in the capillary tube is set to 55 degrees and 95 degrees, for example. These two temperatures are changed by blowing warm air at the same temperature as the droplet to be changed, and at the same time, this glass capillary tube is irradiated with excitation light of a fluorescent dye, and the obtained fluorescence intensity is measured. It has a mechanism that makes it possible.
- the current analysis means using cells has a problem that it does not have a means for analyzing whether the target cell is in a state of apoptosis or the like at the time of cell recovery.
- the contents of the cell must be used unless the cell shell can be removed by any method. Had a problem of not eluting into the sample solution.
- the present inventors provide a cell analyzer capable of rapidly identifying the type and state of cancer cells flowing in the blood with metastatic ability and the number (concentration). That is, the present invention provides the following apparatus system and apparatus.
- A a first device for concentrating, staining, and washing a cell sample solution from a subject;
- B a second device for concentrating, separating and purifying the stained cell sample solution from the first device;
- C a third device for performing gene analysis / expression analysis of purified cells in the cell sample solution from the second device;
- D a fourth device for continuously feeding the cell sample solution over the first to third devices;
- E A cell analyzer system comprising a control / analyzer that controls the operation of each of the devices and analyzes the cell sample,
- the first device is A chamber with a filter for concentrating, staining, and washing cells in the cell sample solution; Containers for storing the cell sample solution, staining solution and washing solution, respectively;
- the second device is A cell sorter chip having a flow path for flowing a cell sample solution containing cells including target cells, wherein the flow path includes a first flow path in which the cells are concentrated, and detection
- a cell sorter chip including a second flow path branched from the first flow path, wherein the target cells are selected, and An external force is applied to the cells flowing through the channels so that the cells flowing through the channels are concentrated in the first channel and converged in a desired direction in the second channel.
- a mechanism to give An optical system including light irradiation means for irradiating the cells flowing in the second flow path, and a high-speed camera for acquiring an image of the cells at an image capture rate of at least 200 frames / second;
- the third device is A reaction vessel to which a sample solution is added and reacted;
- a heat exchange tank for exchanging heat with the reaction tank;
- a temperature control mechanism for controlling the temperature of the heat exchange tank;
- a cell analyzer system comprising: (2) Contents of the cells conveyed by the fourth device for feeding the cell sample solution before the third device for performing gene analysis / expression analysis of purified cells in the cell sample solution A cell disruption mechanism that elutes the sample solution by cell disruption,
- the control / analyzer transports the cell sample solution from the second device to the cell disruption mechanism by the fourth device for feeding the cell sample solution, and the sample solution is disrupted by the cell disruption mechanism.
- the cell disruption mechanism is A container for containing the cell sample; A crushing rotating body for crushing cells in the container, An abrasive for crushing cells in the container, The cell sample and the abrasive are added to the inside of the container, and the cell sample is crushed by the movement of the crushing rotating body in which rotation and revolution are strictly controlled.
- Cell analyzer system (4)
- the cell disruption mechanism further includes a rotating shaft, When the crushing rotating body is pressed from above by the rotating shaft, the crushing rotating body rotates inside the container, and the frictional force and slippage between the crushing rotating body and the rotating shaft are different from those of the crushing rotating body.
- the cell analyzer system according to (3) which is controlled by the pressure between the rotating shafts.
- the cell crushing mechanism can generate a force for pressing the crushing rotating body in a direction perpendicular to the side surface of the container by shifting the rotating shaft of the crushing rotating body and the rotating shaft of the rotating shaft.
- the cell analyzer system according to (4) above comprising a mechanism.
- the cell crushing mechanism is a mechanism that allows the crushing rotating body to be lifted from the inside of the container and removed by the magnetic force of the rotating shaft, electrostatic force, or suction force due to gas pressure difference.
- the cell analyzer system according to (4) comprising: (7) In the cell disruption mechanism described above, contamination between different cell samples can be eliminated by providing a drive mechanism equipped with a plurality of containers capable of automatic replacement of the containers.
- the cell analyzer system according to any one of (6).
- the crushing rotator is sealed and sealed inside the unused container by a confidential seal, and the container and the crushing rotator are placed at the time of crushing the cell sample.
- a cell sorter chip including a flow path for flowing a cell sample solution containing cells including target cells, wherein the flow path includes a first flow path in which the cells are concentrated, and the concentration A cell sorter chip including a second flow path branched from the first flow path, wherein the detection of the cells and the selection of the target cells are performed, (ii) The cells flowing through each of the channels are concentrated in the first channel and converged in a desired direction in the second channel.
- a mechanism for applying external force to the (iii) an optical system including a light irradiation means for irradiating the cells flowing in the second flow path, and a high-speed camera for acquiring an image of the cells at an image capture rate of at least 200 frames / second; (iv) a control / analysis unit that controls the operation of each unit and analyzes an image of each cell captured by the optical system;
- An image detection type single cell separation / purification apparatus comprising: (10) The apparatus according to (9), wherein the external force is ultrasonic radiation pressure, gravity, electrostatic force, or dielectric electrophoresis force. (11) The device according to (9) or (10), wherein the cell sample containing the target cell is derived from blood.
- the device according to any one of (9) to (11), wherein the target cell includes a cancer cell.
- the control / analysis unit binarizes the cell image obtained from the optical system, and is selected from the group consisting of the luminance centroid, area, perimeter, major axis, and minor axis of the binarized image.
- the device according to any one of (9) to (12) above, wherein each of the cells is detected and identified at a single cell level by at least one index.
- the cells in the cell sample solution are fluorescently labeled, the optical system further includes fluorescence detection means, and information on the fluorescence image of the cells is used as an additional index by the control / analysis unit.
- the apparatus according to (13) above.
- the present invention provides the following on-chip cell sorter and on-chip cell sorter system.
- One sample channel having the same length and cross-sectional area and two buffer liquid channels disposed symmetrically on both sides of the sample channel are arranged to merge, and after the merge, the center of the same length and cross-sectional area is again downstream.
- the ratio of the cross-sectional area of the sheath liquid reservoir that is distributed to the recovery flow path and the two waste liquid flow paths on both sides and covers the inlets of the three upstream flow paths and the sample liquid reservoir that fills the sample therein
- the ratio of the number of channels is 2: 1, so that even if the liquid flows, the liquid level of both is the same.
- the electric field is only applied to the cells that are placed in the I applied it was characterized by the on-chip cell sorter.
- a stopper disposed on the top surface of the sheath liquid reservoir, means for applying compressed air through the stopper, means for continuously supplying liquid to the sheath liquid reservoir and the sample reservoir,
- the cell sorter according to (15) above, further comprising an electric sensor capable of measuring the liquid level height in both the sheath liquid reservoir and the reagent reservoir.
- the present invention it is possible to purify a minute amount of target cells in blood in units of one cell, and to analyze accurate gene information and expression information of the target cells.
- the present invention it is possible to identify whether or not the cells to be examined are clustered (whether or not they are isolated single cells).
- only the target cells can be separated and purified and collected in real time.
- the present invention it is possible to measure the intracellular state of only the collected cells at the single cell level, and perform genome analysis and expression analysis at the single cell level.
- the collected cells can be re-cultured.
- cell information such as a difference in cell size, a size ratio between the nucleus inside the cell and the cytoplasm, etc. can be acquired, and the cell can be purified by discrimination based on the result.
- the present invention by collecting cells that are dividing in the blood, it is possible to collect cells having a dividing ability such as blood cancer cells and stem cells.
- FIG. 1 It is a schematic diagram which shows notionally an example of the means in the apparatus corresponding to the whole process of the cell analysis performed using the cell analyzer apparatus of this invention, and each process. It is a figure which shows typically one example of the whole structure of the cell analyzer system of this invention in FIG. It is a figure which shows typically an example of a structure of the cell concentration / staining / decolorization module in FIG. It is a figure which shows typically an example of a structure of the image detection type 1-cell separation and refinement
- FIG. 7 It is a schematic diagram which shows notionally an example of the means in the apparatus corresponding to the whole process in the case of including the cell destruction process in the cell analysis performed using the cell analyzer apparatus of this invention, and each process. It is a figure which shows typically an example of the crushing mechanism comprised in the cell destruction process in the process shown in FIG. 7 comprised from a container, a rotary body, and a rotating shaft. It is a figure which shows typically the various variations of the basic cell crushing mechanism shown in FIG. The mechanism which ensures the adhesiveness of a container and a rotary body is illustrated. It is a schematic diagram which shows the example of the various shapes of the rotary body of a cell crushing mechanism used in this invention, and a rotating shaft.
- FIG. 16 is a diagram schematically showing an example of a cell purification process in the image detection type 1-cell separation / purification (cell sorter) module of FIG. 15.
- the cell analyzer of the present invention generally comprises: (1) Cell concentration / staining / decolorization part that continuously performs processes including cell concentration, fluorescent antibody labeling (or staining and washing with reversible fluorescent labeling markers such as aptamers if necessary) , (2) Obtain image data of about 10,000 images of cells per second from cells flowing through the microchannel formed on the chip substrate, and purify 10,000 cells per second in real time based on the analysis result of the image information An image detection type 1 cell separation / purification (cell sorter) unit, (3) a 1-cell genome analysis / expression analysis unit that measures the intracellular state at the 1-cell level; (4) a liquid feeding part for carrying the sample liquid between the above parts, (5) A control analysis unit for controlling the operation of each unit and performing the analysis.
- a typical embodiment of the cell analyzer of the present invention is characterized in that the three modules (1) to (3) are continuously combined in the order described above, and the cells are continuously connected by the flow path. Therefore, a small amount of cells can be eliminated by contamination or manipulation.
- the presence or absence of fluorescent labeling of the cells is detected and confirmed at the single cell level, and the fluorescence-labeled cells are confirmed to be isolated single cells that are not clustered. In addition, it can be determined whether apoptosis is occurring in the cells. Therefore, according to the cell analyzer of the present invention, cells can be separated and purified based on an index that cannot be identified by the conventional scattered light detection type cell sorter technique.
- cells that are stained accurately in units of 1 cell are selectively collected, and cell states such as apoptosis of the cells to be collected are confirmed, and fluorescence information and cell state information of each cell are confirmed.
- cell genetic information and expression information can be analyzed.
- the cell concentration / staining / decoloring part (1) above a small amount of cells contained in the reaction solution continuously sent from the previous module by the non-contact force is continuously captured and concentrated, and a certain number of cells is obtained.
- the cell label staining solution is introduced and the cells are stained, the unbound reagent is washed away, and then the cells are delivered to the next module at a constant concentration.
- cell capture / concentration using the feature that cells gather by “dielectrophoretic force” created by an alternating electric field by a metal electrode created in a microchannel as a non-contact force
- the means for performing separation / purification in units of one cell based on the result of the image detection of (2) above details such as the difference in cell size, the ratio of the nucleus inside the cell to the cytoplasm, etc.
- Cell information is acquired as image information, and the cell is purified based on the result.
- a high-speed camera is used, the light emission of the light source is adjusted in accordance with the shutter cycle of the high-speed camera, and light from the light source is emitted for a certain period of time during which each shutter is released.
- the shutter speed is 1 / 10,000th of a second
- illuminate the target cells with a light source capable of high-speed light emission control, such as an LED light source or a pulsed laser light source, for a period of 1 / 10th of the shutter speed.
- a light source capable of high-speed light emission control such as an LED light source or a pulsed laser light source
- the present invention makes it possible to completely prevent cross-contamination of the device by making the main part of the cell sorter into a chip, and to separate cells without cross-contamination essential in the medical field, particularly in the field of regenerative medicine. Provide a system.
- the cells assumed as detection targets in the present invention are bacteria for small ones and animal cells (for example, cancer cells) for large ones. Therefore, the cell size typically ranges from about 0.5 ⁇ m to about 30 ⁇ m.
- the first problem is the channel width (cross-sectional shape).
- the channel is formed in a substantially two-dimensional plane using a space of about 10 to about 100 ⁇ m in the thickness direction of the substrate on one of the substrate surfaces. In terms of cell size, the most typical size is about 5 to about 10 ⁇ m in the thickness direction for bacteria, and about 10 to about 50 ⁇ m in the thickness direction for animal cells.
- the cell analyzer of the present invention typically comprises a cell concentrating unit having a function of concentrating cells, a cell arrangement unit having a function of separating and purifying cells, and a cell separation / purification in the same chip. And an optical analysis unit for identifying and judging cells to be separated and purified.
- a sample solution that has not been subjected to concentration treatment is introduced into the cell concentration section from one inlet, and the sample solution is discharged from a discharge section disposed downstream of the cell concentration section.
- ultrasonic radiation pressure, gravity, electrostatic force, dielectric electrophoretic force and the like can be used, but are not limited thereto.
- an arrangement is used in which these external forces can be applied in a direction perpendicular to the flow of the sample solution in the concentration section and in the direction of the concentrated cell recovery port.
- all cells should flow in one of the two channels that are branched into two downstreams by applying external force to the cells so that the cells are arranged in the center of the channel where the cells are flowing. Subsequently, by applying an external force to only the cells to be collected out of the arranged cells and moving the flow position of the cells, the external force is applied to the flow path branched into the above two. Only when the cells are introduced into another channel.
- the external force means for arranging cells into nodes of standing waves by ultrasonic radiation pressure can be used.
- a means for arranging cells at the position of the apex of the wedge can be used by combining wedge-shaped electrode arrays.
- the cell detection function of the cell analyzer of the present invention resides in the image detection type 1-cell separation / purification part (2) above.
- a part to be observed by a CCD camera is provided upstream of the flow path branching part, and a cell separation region is provided downstream of the part if necessary.
- the cells passing through the flow path are irradiated with a laser or the like, and when the cells cross and the scattered light or the cells are modified with fluorescence, the fluorescence can be detected with a photodetector.
- a separation channel point that becomes a cell separation region is installed downstream of the detection unit.
- the sorting unit which is a cell separation region
- a pair of comb-shaped electrodes is used as a means for moving the cells by applying external force to the cells from the outside, for example, when using a dielectrophoretic force.
- a pair of comb-shaped electrodes is used. Install and provide a flow path that can separate and drain cells.
- electrostatic force a voltage is applied to the electrode to change the position of the cell in the flow path. At this time, since the cell is generally charged negatively, it moves toward the positive electrode.
- the waste liquid outlet (outlet 213) of the cell concentrating unit 215 and the purified cell of the cell sorting unit 217 It is desirable that the pressure at the outlet (cell recovery unit 224) and the outlet of the waste liquid of the cell sorting unit (waste liquid recovery unit 223) be substantially the same (see FIG. 4B).
- a flow path resistance adjusting portion for pressure adjustment is arranged immediately before each outlet such as a thin flow path or a long S-shaped flow path.
- the cell recognition and separation algorithm has the following characteristics.
- the cell image is first binarized and its center of gravity is obtained.
- the luminance center of gravity, area, perimeter length, major axis, minor axis of the binarized cells are obtained, and each cell is numbered using these parameters. It is possible to automatically save each cell image as an image at this point because it is beneficial to the user.
- the separation index may be information such as the luminance center of gravity, area, circumference length, major axis, minor axis, or the like, or information using fluorescence may be obtained by using fluorescence detection separately from the image. In any case, the cells obtained by the detection unit are separated according to the numbering.
- the movement speed (V) of the numbered cells is calculated from the image captured every predetermined time, and the distance from the detection unit to the selection unit with respect to the cell movement speed (V) (L),
- the application timing from (L / V) to (L / V + T) depending on the application time (T) the cells are electrically distributed and separated when the cells of the target number come between the electrodes.
- the means for high-speed single-cell genome analysis / expression analysis of (3) used in the present invention for example, the reaction control device used, For a plurality of temperatures to be changed, means for changing a plurality of liquids having different heat capacities at a high speed at high speed using a liquid having a large heat capacity maintained at each temperature as a heat exchange medium, and a liquid having a large heat capacity And a microreaction tank in which heat exchange with the sample liquid is performed quickly.
- the reaction control device used in the present invention includes a reaction vessel that has a structure and material suitable for heat exchange, and a reaction that circulates a liquid having a temperature suitable for each reaction outside the reaction vessel.
- Liquid is transferred from any liquid reservoir tank to the outside of the reaction tank to rapidly change the temperature of the tank heat exchange tank, heat sources that maintain the temperature of the liquid with high accuracy, and the temperature of the micro reaction tank And a mechanism for preventing the mixing of liquids at different temperatures when the valve system is switched.
- Advantages of controlling the temperature of the reaction vessel with the refluxing liquid include the following points. First, the temperature overshoot problem can be solved. Since the temperature of the liquid that is constantly refluxing is constant, the temperature of the reaction vessel surface and the temperature of the liquid are instantaneously equilibrated. Since the heat capacity of the reaction vessel and the sample is insignificant compared to the liquid being refluxed, the liquid flows continuously even if heat is locally deprived from the liquid. Basically does not occur. Of course, the temperature of the reaction vessel does not exceed the temperature of the liquid. It is possible to change the temperature by 30 degrees or more within 0.5 seconds by sequentially pouring liquids of different temperatures into the reaction tank heat exchange tank.
- FIG. 1 illustrates an example of a procedure from collection of a blood sample to analysis performed using the cell analyzer of the present invention.
- the blood sample collected from the patient is directly introduced into the cell concentration / staining part.
- a fluorescent labeling agent such as a fluorescent cancer marker
- the excess fluorescent labeling agent that did not react is washed away.
- the cells are introduced into the image detection type 1-cell separation and purification unit in a form adjusted to the optimum cell concentration and solution for the next image detection type 1-cell separation and purification unit.
- the primary detection the presence or absence of fluorescence emission based on the fluorescent label at the 1-cell level is confirmed. Thereby, it can be confirmed by a conventional labeling technique whether the cell is a target cell.
- the cells emitting fluorescence are isolated cells or become cell clusters with other cells 2) Determine whether the cells emitting fluorescence are in a healthy state or in a state such as apoptosis in which the cell nucleus and cell shape are deformed, and depending on the purpose, Recover healthy cells or recover cells that are undergoing apoptosis, and perform gene analysis and expression analysis on the next stage so that gene analysis and expression analysis can be performed separately for each cell morphology. Can be introduced into the department. In particular, in the case of a cell mass, since cells other than the target cell are mixed, collection is not performed even when there are cells that emit fluorescence.
- the cells identified and purified at this stage can be re-cultured in a contamination-free manner in purified cells, in addition to being introduced into the gene analysis / expression analysis section.
- the gene analysis / expression analysis unit converts the introduced cells into a small amount of cells, as one cell that is identified as the same cell based on information from the image detection type 1 cell separation and purification unit, or a group of the same cells Gene identification or expression identification is performed in units.
- FIG. 2 shows an example of an overall image of the cell analyzer system 1 that realizes the procedure shown in FIG.
- the apparatus system 1 includes a concentration / staining / decoloring module 10 that introduces a blood sample and pretreats cells, an image detection type 1-cell separation / purification module 20 that identifies and purifies cells in units of cells, and is purified.
- 1-cell genome analysis / expression analysis module 30 for performing gene analysis and expression analysis of the collected cells
- liquid feeding module 40 for transporting samples between modules, and controlling the operation of the entire system and analyzing the analysis results
- a control / analysis module (computer) 50 is provided.
- 3 to 6 show an example of the configuration of each module in the example shown in FIG.
- FIG. 3 shows an example of the configuration of the cell concentration / staining / decoloring module 10 that introduces a blood sample derived from a subject (eg, cancer patient) and pretreats the cells.
- the cell concentration / staining / decoloring module 10 is integrally disposed on the chassis 114, and each solution of the sample cell sample, the staining agent, and the cleaning agent is held in the module.
- a sample cell sample such as blood is introduced into the concentration chamber 108, and the liquid component is discharged through the filter to the waste liquid collection tube 110 by the pressure pump 109, whereby the cells are concentrated.
- the dyeing solution is introduced using the dispensing head 104 and reacted for a predetermined time, and then the dyeing solution is discharged again by the pressure pump 109.
- a decolorizing agent into the concentration chamber 108, excess dyeing agent is washed and discharged.
- a diluent also serving as a cleaning agent is introduced to dilute the cells to a desired concentration, and the cells are introduced into the collection tube 112 through the collection head 111 having the collection tip 113 at the tip. Yes.
- FIG. 4 shows an example of the configuration of the image detection type 1-cell separation / purification module 20 for identifying and purifying cells in units of one cell.
- the image detection type 1-cell separation / purification module 20 includes a light source 201, a mirror 202, a condensing lens 203, a dichroic mirror 204, a filter 205, a light detection element 206 for fluorescence detection, a high-speed camera 207, And a cell sorter chip 209 for introducing a cell sample.
- a light source 201 such as a pulse laser or a high-intensity LED light source
- a light detection element 208 such as a photodiode that detects passage of cells with scattered light, and fluorescence are detected for cells passing through the cell sorter chip 209.
- a plurality of pieces of information can be detected simultaneously by a high-sensitivity light detection element 206 such as a photomultiplier, a high-speed camera 207, or the like.
- the light emitted from the light source continuous light may be emitted, but in order to increase the spatial resolution of the image without blurring, pulse light is generated in synchronization with the shutter cycle of the high-speed camera 207.
- the processing using an image and the processing using fluorescence or scattered light may be used in combination.
- the image data obtained by the high-speed camera 207 can be displayed on the monitor of the computer 50 for use by the user.
- the filter 205 is appropriately adjusted to transmit a plurality of excitation lights, and a wavelength that does not overlap with the fluorescence wavelength for fluorescence detection in the lower stage is selected to light the cells.
- a plurality of devices to which devices from the dichroic mirror 204 to the filter 205 and the fluorescence detector 206 are added in accordance with the type of fluorescence to be observed.
- the cell recognition and separation algorithm has the following characteristics.
- the cell image is first binarized and its center of gravity is obtained.
- the luminance center of gravity, area, perimeter length, major axis, minor axis of the binarized cells are obtained, and each cell is numbered using these parameters. It is possible to automatically save each cell image as an image at this point because it is beneficial to the user.
- the separation index may be information such as the luminance center of gravity, area, circumference length, major axis, minor axis, or the like, or information using fluorescence may be obtained by using fluorescence detection separately from the image. In any case, the cells obtained by the detection unit are separated according to the numbering.
- the movement speed (V) of the numbered cells is calculated from the image captured every predetermined time, and the distance from the detection unit to the selection unit with respect to the cell movement speed (V) (L),
- the application timing from (L / V) to (L / V + T) depending on the application time (T) the cells are electrically distributed and separated when the cells of the target number come between the electrodes.
- An example of the configuration for cell separation and purification is as follows. A series of microfabricated channels arranged in a two-dimensional manner on a planar chip, from concentration to arrangement and purification of cells in the sample solution, and force applied to the cells incorporated in the chip Consists of means.
- FIG. 4B schematically shows an example of a cell sorter chip 209 configured on such a chip.
- a microchannel 211 is provided inside the chip substrate 210, and an opening communicating with the channel is provided on the upper surface to serve as a supply port for a sample and a necessary buffer solution (medium).
- the flow path can be created by so-called injection molding in which a plastic such as PMMA is poured into a mold, or can be created by bonding a plurality of glass substrates.
- the size of the chip is, for example, 50 ⁇ 70 ⁇ 1 mm (t), but is not limited thereto.
- the cells envisaged in the present invention are bacteria at a small size, and animal cells at a large size, such as cancer cells. Therefore, the cell size is typically in the range of about 0.5 ⁇ m to 30 ⁇ m, but is not strictly limited to this range, and cells of any size can be used as long as the present invention is effectively used. Can be done.
- the first problem is the flow channel width (cross-sectional shape).
- the channel 211 is formed on one of the substrate surfaces in a substantially two-dimensional plane in a space typically 10 to 100 ⁇ m in the thickness direction of the substrate. The appropriate size is 5 to 10 ⁇ m in the thickness direction for bacteria and 10 to 50 ⁇ m in the thickness direction for animal cells based on the cell size.
- the sample solution is introduced from the inlet 212 into the microchannel 211 by a syringe pump or cell introduction means that does not generate a pulsating flow such as air pressure.
- the sample liquid containing the cells introduced into the microchannel 211 flows along the streamline of the particle flow 218 before application toward the outlet 213 downstream, and is discharged.
- means for continuously applying an external force to the cells is introduced so that the cells are concentrated toward the cell concentrate inlet 214 arranged in a part of the side wall of the microchannel 211.
- the cells are concentrated along the cell flow 219 after application, and a cell concentrate having a concentration 100 times or more the cell concentration introduced at the inlet 212 is introduced into the cell concentrate inlet 214.
- ultrasonic radiation pressure gravity, electrostatic force, dielectric electrophoretic force
- a traveling wave of ultrasonic waves is generated in the direction of the cell concentrate inlet 214 and orthogonal to the flow of the sample liquid, and is applied by the ultrasonic radiation pressure after application.
- a cell stream 219 can be generated.
- a PZT-based piezoelectric element may be adhered to the surface of the chip 209, or a comb-shaped electrode array is disposed on the surface of the piezoelectric element so that surface acoustic waves are generated in the cell concentration unit 215, This may be applied to the surface of the cell concentrating unit 215, and the fact that the soaked ultrasonic waves are introduced into the cell concentrating unit 215 may be used.
- the spatial arrangement of the chip 209 may be adjusted so that the direction of the concentrated liquid inlet 214 is perpendicular to the flow of the sample liquid and the direction of the concentrated liquid inlet 214 is the direction of gravity, or
- the chip 209 may be arranged on a disc that can rotate, perpendicular to the flow of the sample solution, and the cell concentrate in the same direction as the radial direction of the disc.
- electrostatic force an electrode is arranged on the side wall of the microchannel 211 so that the cell receives an external force toward the side wall. In that case, the cell of the target cell It may be determined which charge is applied depending on whether the surface potential is positive or negative.
- the flow path distance of the micro flow path 211 must be flexibly adjusted according to the type and strength of the external force applied to the cell, for example, sufficiently long in the case of electrostatic force It must be a thing.
- the dielectrophoretic force is used as an external force, the dielectrophoretic force is applied in the cell concentration unit 215 so as to be orthogonal to the flow of the sample liquid and in the direction of the concentrate inlet 214.
- An electrode may be disposed.
- the concentrated cell liquid into which the cell concentrated liquid has been introduced into the concentrated liquid inlet 214 is arranged in a line along the flow in the solution at the converging unit 216. Specifically, it has means for generating an external force so that cells are attracted to the central part of the flow path of the converging unit 216 by using a dielectric electrophoretic force or a standing wave mode of ultrasonic radiation pressure. is there.
- the cells arranged in a straight line in the center in this way are measured in the cell detection region 218 arranged in the preceding stage of the cell sorting unit 217, and after determining the type of each cell, from upstream to downstream.
- the wedge-shaped electrodes (converging V-shaped comb electrodes) 225 are alternately arranged. And applying an alternating voltage to the converging V-shaped comb electrode contact allows the cell to be directed toward the position of the wedge-shaped apex, thereby applying an external force to the cell. As a result, the position of the wedge-shaped apex Cells can be continuously concentrated.
- the shape of the electrode arranged in the flow path that the electrode has an angle toward the downstream side, and that this electrode has a sharp tip instead of a straight line, and Because of the comb-shaped electrode array that has the shape of the axis, the cell that receives the dielectric electrophoretic force is affected by the flow regardless of whether it receives a repulsive force or an attractive force.
- the cells are guided and arranged at the acute electrode tip portion by the resultant force of the force swept downstream and the force applied to the cell toward the sharp tip portion.
- the cell is forced to flow downstream by the flow and the dielectric electrophoresis directed toward this acute angle tip direction.
- the resultant force and force gather at the acute angle tip.
- FIG. 5 illustrates an example of the configuration of a one-cell genome analysis / expression analysis module 30 that performs gene analysis and expression analysis of purified cells.
- the reaction tank 301 is composed of a thin plate of aluminum, nickel, or gold having a plurality of depressions. The thickness of the thin plate in the depression region is about 10 to 30 microns, and the region between adjacent depressions has a thickness of 100 to 500 microns in order to ensure overall strength.
- the reaction vessel 301 is fixed to the bottom surface of a square or circular reaction vessel frame, and has a structure that can be easily detached from the reaction vessel heat exchange vessel 302. The temperature of the liquid introduced into the reaction tank heat exchange tank 302 is overheated by a heat source disposed inside the liquid reservoir tank 303.
- An agitation mechanism is provided to quickly remove heat from the surface of the heat source and to make the temperature inside the liquid reservoir tank 303 uniform.
- the liquid in the liquid reservoir tank is guided inside the flow path by the pump 304.
- the liquid is led to the reaction tank heat exchange tank 302 by the switching valve 305 or directly returned to the liquid reservoir tank 303 by being led to the bypass flow path. If necessary, the temperature of the liquid is slightly controlled by the auxiliary temperature control mechanism 306 so as to suppress temperature fluctuation in the liquid reservoir tank 303.
- the basic configuration of the reaction tank heat exchange tank 302 includes an inlet A (307) and an inlet B (308) for introducing liquids having different temperatures.
- the number corresponding to the plurality of temperatures for which the temperature of the sample solution is to be changed will be prepared as a plurality of two temperatures or more.
- the number is three. It is not limited to two.
- a plurality of outlets, outlet A (309) and outlet B (310) are provided in order to return the liquid in the reaction tank heat exchange tank 302 to the liquid reservoir tank 303.
- the number is not limited to two.
- Various types of reaction vessels can be used, and reaction vessel A, reaction vessel B, reaction vessel C, and reaction vessel D are shown as an example.
- water may be used, but a liquid having a large heat capacity and low viscosity may be used.
- liquid ammonia For example, liquid ammonia.
- the sample liquid is surely set to 100 degrees, or the liquid having a lower freezing point than water is used. It is also possible to reliably change the temperature up to the freezing point of water while preventing freezing of the circulating liquid.
- the reaction vessel frame can measure the change in fluorescence intensity of the fluorescent dye in the sample solution, which changes due to the reaction of the sample solution 311 in the reaction vessel 301, for each of the one or more reaction vessels 301.
- An optical window that transmits the excitation light of the fluorescent dye and the fluorescence is arranged, and the fluorescence detector 312 is arranged to measure the temporal change of the measured fluorescence intensity of each reaction vessel 301. it can.
- each of the plurality of fluorescence detectors 312 includes an excitation light irradiation mechanism and a fluorescence detection mechanism, and each of a plurality of reaction vessels 301 to which different primers or different sample solutions are dropped.
- the fluorescence intensity data acquired by the fluorescence detector 312 is recorded by the control analysis unit 313 and has a function of estimating the amount of DNA or mRNA in the sample solution obtained by the PCR reaction. Further, the control analysis unit 313 obtains the switching information of the switching valve 305, thereby estimating whether the temperature change of the sample liquid 311 after the valve switching has reached the target temperature from the change in fluorescence intensity over time, And a mechanism for controlling valve switching based on the result.
- one detector is arranged in each reaction vessel 301.
- the fluorescence intensity change in a plurality of reaction vessels can be changed by combining a fluorescent example light source and a camera capable of quantitative fluorescence detection such as a cooled CCD camera. You may measure.
- the fluorescence intensity of all reaction vessels can be measured by combining a mechanical drive mechanism that can move at high speed on the XY plane with the detectors. You may do it.
- a freeze-dried reagent it is convenient to freeze and dry the reagents necessary for the reaction. It is possible to prepare a freeze-dried reagent at the bottom of the reaction vessel. Further, if a plug-like freeze-dried reagent is formed inside a dispensing tip used when dispensing a sample, the reagent can be dissolved in the sample by moving the sample up and down. Alternatively, it is also possible to dissolve the freeze-dried reagent by forming a freeze-dried reagent on the surface of the fiber ball on which nylon fibers or the like are bundled, and inserting the sample into a sample inside the reaction vessel and stirring.
- the reaction vessel frame is preferably formed of a heat insulating material such as polystyrene, polycarbonate, PEEK, acrylic, and the like, and the reaction area of the reaction vessel 301 can be controlled quickly and with high accuracy by reducing the bonding area with the reaction vessel 301. Is desirable.
- a thread is formed on the surface of the reaction tank frame and the reaction tank frame is screwed. In order to maintain watertightness, it is desirable to attach a seal to the opening. Alternatively, it is possible to employ a tapered reaction vessel frame and attach it only by pressure.
- valve switching mechanism There are an inlet valve A and an inlet valve B for introducing a liquid into the reaction tank 301, and an outlet valve A and an outlet valve B for introducing the liquid to the outside.
- the liquid guided from the inlet valve A returns from the outlet valve A to the liquid reservoir tank, and the liquid guided from the inlet valve A returns from the outlet bawl B to another liquid reservoir tank.
- the sample in the reaction vessel can be reacted.
- the inlet valve B and the outlet valve A, or the inlet valve A and the outlet valve B are simultaneously opened for a moment so that liquids of different temperatures are mixed.
- the conditions for PCR are, for example, reaction buffer 1.0 ⁇ L, 2 mM dNTP (dATP, dCTP, dGTP, dTTP) 1 ⁇ L, 25 mM magnesium sulfate 1.2 ⁇ L, 10% fetal bovine serum 0.125 ⁇ L, SYBR Green I 0.5 ⁇ L, primer Two types can be used: 0.6 ⁇ L each, sterilized water 3.725 ⁇ L, KOD plus polymerase 0.25 ⁇ L, and genomic DNA 1.0 ⁇ L.
- As the temperature condition first, 95 ° C. for 10 seconds, and then temperature change of 95 ° C. for 1 second and 60 ° C. for 3 seconds can be measured in 40 cycles.
- FIG. 6 illustrates an example of a configuration of a liquid feeding module 40 that transports a sample between the modules. It has a dispensing head 401 and a dispensing tip 402 for exchanging liquid between each module arranged on the chassis 406, and controls the height direction of the dispensing head in the Z-axis direction.
- the Z-axis movement guide 403 and the Z-axis movement motor 404 as functions and the arm rotation motor 405 as an arm rotation mechanism have a function of controlling the position of the dispensing head 401 on the XY plane.
- FIG. 7 shows cell expression of a sample in which a nucleic acid component in a cell is not easily eluted into a sample solution by a shell covering a cell such as an anthrax spore in a cell analysis performed using the cell analyzer of the present invention.
- An example of a procedure from collection of a sample into which a procedure for crushing a shell covering a cell is introduced before an analysis procedure is shown.
- the present cell analyzer can analyze cells such as spores of Bacillus anthracis by means similar to the means for analyzing blood cells described above.
- FIG. 8 schematically shows an example of a basic structure for automatically crushing a shell of a spore or the like covering a small amount of sample cells in order to analyze intracellular genes and expression information for cells having spores such as anthrax.
- a minute sample 802 is dispensed into the container 801, and a rotating body 803 for crushing is placed inside the container 801.
- the rotating body 803 is pressed against the container 801 by the rotating shaft 804.
- the sample 805 in the minute sample is ground by the abrasive 806.
- the processed sample 805 can be easily recovered by removing the rotating body 803. Since the rotating body 803 and the container 1 have a simple structure, there is no problem even if they are handled as consumables.
- FIG. 9 schematically shows various variations of the basic cell disruption mechanism shown in FIG.
- the container 811 including the rotating body 810 is held by a flexible structure 812 such as rubber. Since the tip portion 814 of the shaft 813 is cut obliquely, when the shaft 813 is pressed against the rotating body 810, the rotating body 810 presses the container 811 downward and laterally, and the flexible structure 812 By deforming, pressure is absorbed. As a result, the sample can be crushed while holding the rotating body 810 and the container 811 closely without giving excessive stress to the rotating shaft 813.
- FIG. 9B as a method of releasing stress, it is possible to incorporate a spring mechanism 815 that deforms vertically and laterally inside the rotating shaft.
- FIG. 10 shows the possibility of rotating bodies and rotating shafts of various shapes in the cell disruption mechanism used in the present invention.
- the shaft whose tip is cut obliquely (FIG. 10a)
- it may be recessed in a gently curved surface (FIG. 10b), bowl-shaped (FIG. 10c), or the like.
- the rotating body does not have to be a true sphere, and may have a structure in which the shaft and the rotating body are gently engaged with each other (FIG. 10d).
- the hemisphere may be rotated with a rotating shaft cut diagonally (FIG. 10e).
- it may have an egg-shaped rotating body (FIG. 10f) or a protruding structure that meshes with the rotating shaft (FIG. 10g). It is also possible to rotate a dish-like rotating body with a shaft (FIG. 10h).
- FIG. 11 shows an example of the cell disruption step in the present invention.
- a rotating body 831 and an abrasive 832 are enclosed in the container 830 (FIG. 11a).
- the seal 833 is broken (FIG. 11b), and a sample 834 containing cells is dispensed into the container 830 (FIG. 11c).
- the cells in the sample are crushed by the abrasive 832 and the component 836 is eluted (FIG. 11e).
- the sample can be easily collected by removing the rotating body 831 from the container 830 (FIG. 11f).
- negative pressure, magnetic force, and electrostatic force can be used, and such a mechanism can be incorporated in the rotating shaft.
- a special mechanism may be prepared separately.
- FIG. 12 shows a conceptual diagram of a mechanism that can be used when the cell disruption process in the present invention is automated.
- a plurality of containers 840 are integrally formed, and a rotating body is sealed in advance in each container.
- a rotating shaft In order to break the seal, it is possible to directly press and tear the rotating shaft (FIG. 12A), or to break with the opening cutter 841 attached to the rotating shaft (FIG. 12B).
- the relative position of the shaft and the container can be automatically changed, and a plurality of samples can be crushed one after another.
- FIG. 13 shows an example of the on-chip cell sorter chip of the present invention that can also be used in the cell analyzer system of the present invention.
- the cell sorter chip 1301 three axial flow paths are arranged symmetrically on the upstream side (1302, 1304, 1306) and downstream side (1303, 1305, 1307) on the chip substrate.
- the three flow paths merge while maintaining a laminar flow, and maintain the state as it is and branch to the three downstream flow paths. Therefore, the upstream side 1302 of the central flow path through which the sample flows is changed to the downstream central flow path 1303, and the upstream side flow path 1304 to the downstream side 1305, and the upstream flow path 1306, respectively, for the two side sheath flows.
- the inlets of the three upstream channels are connected to inlet openings 1308, 1309, and 1310, respectively.
- the inlet opening 1308 upstream of the flow path through which the sample flows is connected to the sample reservoir 1322, typically (but not limited to) by adding a small annular cap (or stopper).
- the inlet openings 1309 and 1310 of the flow path for flowing the sheath liquid stored in the sheath liquid reservoir 1311 are separated from each other and are arranged so that the sample solution does not diffuse.
- the downstream reservoir is also arranged in the same manner as the upstream side, and the waste liquid reservoir 1312 is connected to the outlet openings 1313 and 1314 of the flow path through which the two side sheath liquids flow. Is connected to the outlet opening 1315 of the recovered purified sample, and typically (but not limited to) a small annular cap is added to the outlet opening 1315 to recover the recovered purified sample. Does not diffuse into the waste reservoir.
- the flow rate is generated using a gravity type that utilizes the difference between the liquid level of the sample reservoir and the sheath liquid reservoir and the liquid level of the waste / recovered liquid reservoir, or pressurized air with a cap attached to the upper surface of the reservoir.
- a gravity type that utilizes the difference between the liquid level of the sample reservoir and the sheath liquid reservoir and the liquid level of the waste / recovered liquid reservoir, or pressurized air with a cap attached to the upper surface of the reservoir.
- the ratio of the cross-sectional area of the side sheath flow (or waste liquid) reservoir to the cross-sectional area of the inner sample / recovery sample reservoir is 1 (sample / recovery reservoir): 2 (side sheath liquid reservoir / waste liquid reservoir). It is desirable. This is because if the change in the liquid level of each reservoir is different, the rate of decrease in the liquid level will be different, which will eventually destroy the generation of laminar flow at the confluence. It is. Therefore, since the flow rate of the liquid flow per unit time is 1: 2 in the sheath liquid having two inlets with respect to the sample inlet 1, the cross-sectional area of each reservoir is adjusted so that the liquid level is the same. The ratio was set to 1: 2. To make this universal, it is desirable that the ratio of the total cross-sectional areas of the flow paths coupled to the respective reservoirs matches the ratio of the cross-sectional areas of the respective reservoirs.
- an electrode is arranged at a point where three laminar flows without walls join, where all six channels join.
- the electrode is typically composed of a gel electrode.
- a gel electrode for example, an agarose gel in which NaCl is dissolved so that the electrolyte becomes a current carrier is used.
- the gel is placed in a Y-shaped channel 1316 for gel filling so that the gel tip can be in contact with the agarose gel in a sol state from the inlet 1317 so that the gel can be directed to the outlet 1318.
- the gel does not penetrate into the cell sorter flow path and stops at the boundary line due to surface tension.
- a wire 1319 such as a platinum wire connected to a power source 1320 to apply an electric field to this gel introduction point, at the gel electrode boundary in contact with the flow path, a normal metal electrode Even if the bubbles are raised to a voltage higher than the voltage generated in the flow path, no bubbles are generated and a current can be applied.
- the on-off of the electric field application can be adjusted using the switch 1321, for example.
- FIG. 14 schematically shows an example of the cross section of the upstream reservoir, particularly in the AA cross section of FIG.
- a flow path 1409 is embedded in the cell sorter chip 1401.
- the upper surface of the outer sheath fluid reservoir 1403 is blocked by the cap 1402, so that air pressure at an appropriate flow rate is supplied from the pressurized air introduction pipe 1405.
- the flow path 1409 through which the sample flows is connected to the sample reservoir 1404 so that the sample liquid and the sheath liquid are not mixed.
- the ratio of the cross-sectional area between the sample reservoir and the sheath fluid reservoir is 1: 2 because the ratio of the number of channels is 1: 2, and the ratio of each reservoir connected to each channel is The liquid level is adjusted to be the same.
- a mechanism for supplying liquid can be added so that a larger amount of sample can be processed.
- This includes a sample solution introduction tube 1406 or a sheath liquid introduction tube 1407, and a water level measurement sensor 1408 using conductivity measurement on the wall surface of each reservoir.
- the water level measurement sensor 1408 can be configured by electrodes or electrode pairs disposed at the lower limit of the water level and the upper limit of the water level, which are desired to be set.
- FIG. 15 shows an example of another configuration for handling a large amount of sample in the cell sorter of the present invention.
- Three large reservoirs 1502 are arranged on the chip 1501 upstream of each of the three flow paths, and these are distributed more flexibly using the distribution valve 1505 from the air pressure application device 1503 through the pressure sensor 1504. can do.
- sample collection both the sorted (purified) sample and the waste liquid are collected in the sorted sample collection reservoir 1506 and the waste liquid collection reservoir 1507, respectively, disposed at positions below the chip.
- FIG. 16 schematically shows a procedure for collecting an actual sample in the chip.
- the sample solution stream 1601 flowing from the upstream is sandwiched between the two side sheath solution streams 1602 and 1603 and proceeds to the cell monitor region 1604 while maintaining the arrangement. Therefore, the shape discrimination of each cell, the presence or absence of a fluorescent label, etc. are confirmed, and cell separation is performed downstream based on the results.
- the cells to be collected flow, they flow as they are to the downstream sorted sample collection flow channel 1606, and when the cells or fine particles to be discarded flow, they are arranged to face each other regardless of whether the charge is positive or negative.
- the two gel electrodes 1605 by applying a voltage to the two gel electrodes 1605, the gel can move to one of the two side sheath flows 1607 and be eliminated.
- FIG. 17 is a schematic diagram for explaining one of the indices of cell recovery in the image processing cell sorter.
- the cell is in the G0 cycle and has a nucleus (FIG. 17A (a)), which is clearly image-recognized as a black sphere inside the cell (FIG. 17B (a)).
- FIG. 17A (b) since the nucleus of the cell in the division phase has disappeared (FIG. 17A (b)), the nucleus cannot be confirmed even if the cell is image-recognized (FIG. 17B (b)).
- conventional labeling techniques such as antibody labeling, it is difficult to confirm the state of the cell.
- the presence or absence of a nucleus in the cell Dividing cells can be recovered.
- most normal cells that flow in the blood are already terminally differentiated, but by collecting cells that have undergone cell division in the blood according to the present invention, blood cancer cells, stem cells, etc. It becomes possible to collect cells having the ability to divide.
- FIG. 18 is an example of an operation timing chart when using a flash light source when actually operating the image recognition type cell sorter of the present invention.
- the pixel size of a 1/2000 second camera is 12 ⁇ m ⁇ 12 ⁇ m
- the pixel resolution when viewed with a 20 ⁇ objective lens is 0.6 ⁇ m / pixel. If an LED light source that can perform flash firing at a high speed is used, it is possible to actually obtain an image without blurring.
- the present invention is useful for purifying a minute amount of target cells in blood in units of one cell, and analyzing accurate gene information and expression information of the target cells.
- the present invention is useful for purifying a very small amount of target cells having spores such as Bacillus anthracis per cell and analyzing accurate gene information and expression information of the target cells at high speed.
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Immunology (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Dispersion Chemistry (AREA)
- Biomedical Technology (AREA)
- Genetics & Genomics (AREA)
- Organic Chemistry (AREA)
- Biotechnology (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Molecular Biology (AREA)
- Optics & Photonics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Signal Processing (AREA)
- Microbiology (AREA)
- Virology (AREA)
- Tropical Medicine & Parasitology (AREA)
- Medicinal Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Mycology (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Sampling And Sample Adjustment (AREA)
- Computer Vision & Pattern Recognition (AREA)
Abstract
Description
1)目視による形態学的な細胞分類:例えば尿中に出現する異型細胞検査による膀胱がんや尿道のがんなどの検査や血中の異型細胞分類、組織中における細胞診によるがん検査などをあげることができる。
2)蛍光抗体法による細胞表面抗原(マーカー)染色による細胞分類:一般にCDマーカーと呼ばれる細胞表面抗原を、それに特異的な蛍光標識抗体で染色するもので、セルソーターによる細胞分離やフローサイトメーターや組織染色によるがん検査などに用いられている。もちろんこれらは、医療面のみならず、細胞生理研究用や、工業的な細胞利用の上でも多用されている。
3)あるいは、幹細胞の分離に関しては、細胞内に取り込まれる蛍光色素をレポーターとして幹細胞を含む細胞を大まかに分離し、更にその後で実際に培養を行うことで目的の幹細胞を分離する例がある。これは、幹細胞の有効なマーカーがまだ確立されていないので、実際に培養し、分化誘導したもののみを利用することで、実質的に目的細胞を分離しているのである。
また、現在の、細胞を用いた解析手段については、対象となる細胞がアポトーシス等の状態となっているかどうか、細胞回収時に解析をする手段を有していないという課題があった。
また、炭疽菌の芽胞等の細胞の表面に硬い殻を有する細胞については、細胞内容物の分析をするためには、細胞の殻を何らかの方法で除去することが出来ない限り、細胞の内容物は試料液に溶出しないという問題があった。そのため、通常は、芽胞細胞を培養することで発芽させて、発芽することで通常の細胞と同じ手順でも細胞の内容物が試料液に溶出できるようになることから、細胞培養を行う手段を分析手段に組み込むことで細胞分析が行われているが、この場合には、細胞培養に少なくとも数時間程度、長い場合には一昼夜の培養が必要となるため、培養過程による計測時間の遅延、手順の煩雑化、コンタミネーションの発生などの問題が発生していた。また、高速での分析を行う手法としてガラスボール等の破砕媒体とサンプルの混合物を破砕容器に入れ、超音波振動などを加えることでランダムに衝突をさせることで細胞破砕をする等の破壊手法が存在しているが、これらについては振動による試料溶液の加熱が発生するにも関わらず効果的な破砕効率が得られないという問題と、試料溶液およびサンプル量が多量に必要であり、極微量の細胞の細胞破砕を行う場合には、試料回収効率の問題があった。
すなわち、本発明は、以下の装置システムおよび装置を提供する。
(B) 上記第1の装置からの染色された細胞の試料液を濃縮・分離・精製する第2の装置と、
(C) 上記第2の装置からの細胞試料液中の精製された細胞の遺伝子解析・発現解析を行う第3の装置と、
(D) 上記第1~第3の装置にわたって連続的に上記細胞試料液を送液する第4の装置と、
(E) 上記各装置の動作を制御し、上記細胞試料の解析を行う制御・解析部と
を備える細胞分析装置システムであって、
(a) 上記第1の装置が、
上記細胞試料液中の細胞を濃縮、染色、洗浄するフィルターを備えたチャンバーと、
上記細胞試料液、染色液および洗浄液をそれぞれ収容する容器と、
各上記容器中の各液を上記チャンバー中に順次導入する機構と、
を備え、
(b) 上記第2の装置が、
対象細胞を含む細胞を含有する細胞試料液を流す流路を備えるセルソーターチップであって、上記流路が、上記細胞の濃縮が行われる第一の流路と、上記濃縮された上記細胞の検出および上記対象細胞の選別が行われる、上記第一の流路から分岐する第二の流路とを含む、セルソーターチップと、
各上記流路を流れる上記細胞が、上記第一の流路において濃縮され、かつ上記第二の流路において所望の方向に収束されるように、各上記流路を流れる上記細胞に対して外力を与える機構と、
上記第二の流路中を流れる上記細胞に光を照射する光照射手段と、少なくとも200フレーム/秒の画像取り込みレートで該細胞の画像を取得する高速カメラとを含む光学系と、
を備え、
(c) 上記第3の装置が、
試料液を添加して反応させる反応槽と、
上記反応槽との間で熱を交換する熱交換槽と、
上記熱交換槽の温度を制御する温度制御機構と、
を備える、細胞分析装置システム。
(2)上記細胞試料液中の精製された細胞の遺伝子解析・発現解析を行う第3の装置の前段に、上記細胞試料液を送液する第4の装置によって搬送された上記細胞の内容物を細胞破砕によって試料液に溶出させる細胞破砕機構をさらに含み、
上記制御・解析部が、上記細胞試料液を送液する第4の装置によって上記第2の装置からの上記細胞試料液が上記細胞破砕機構へ搬送され、上記細胞破砕機構において破砕された試料液が、上記第4の装置によって上記第3の装置に搬送されるように上記各部を制御する、上記(1)に記載の細胞分析装置システム。
(3)上記細胞破砕機構が、
上記細胞試料を容れるための容器と、
上記容器内にて細胞を破砕するための破砕用回転体と、
上記容器内にて細胞を破砕するための研磨剤とを含み、
上記細胞試料と上記研磨剤とが上記容器の内部に添加され、自転および公転運動が厳密に制御された上記破砕用回転体の動きにより、上記細胞試料が破砕される、上記(2)に記載の細胞分析装置システム。
(4)上記細胞破砕機構がさらに回転シャフトを含み、
上記破砕用回転体が上記回転シャフトにより上から押し付けられることによって、上記容器の内部で回転し、上記破砕用回転体と上記回転シャフト間の摩擦力および滑りの程度が、上記破砕用回転体と回転シャフト間の圧力により制御される、上記(3)に記載の細胞分析装置システム。
(5)上記細胞破砕機構が、破砕用回転体の回転軸と回転シャフトの回転軸をずらすことにより、容器の側面に対して直角方向に破砕用回転体を押し付ける力を発生させることが可能な機構を備える、上記(4)に記載の細胞分析装置システム。
(6)上記細胞破砕機構が、上記回転シャフトの磁力、静電気力、または気体の圧力差による吸引力により上記破砕用回転体が上記容器の内部から持ち上げられ、除去されることが可能な機構を備える、上記(4)に記載の細胞分析装置システム。
(7)上記細胞破砕機構において、上記容器の自動交換を可能とする複数の容器を搭載した駆動機構を備えることにより異なる細胞試料間での汚染を排除できることを特徴とする、上記(3)~(6)のいずれかに記載の細胞分析装置システム。
(8)上記細胞破砕機構において、未使用の上記容器の内部には上記破砕用回転体が機密性シールにより封印して容れられており、上記細胞試料破砕時には上記容器および上記破砕用回転体が汚染されていないことが保証できることを特徴とする、上記(3)~(7)のいずれかに記載の細胞分析装置システム。
(9)(i) 対象細胞を含む細胞を含有する細胞試料液を流す流路を備えるセルソーターチップであって、上記流路が、上記細胞の濃縮が行われる第一の流路と、上記濃縮された上記細胞の検出および上記対象細胞の選別が行われる、上記第一の流路から分岐する第二の流路とを含む、セルソーターチップと、
(ii) 各上記流路を流れる上記細胞が、上記第一の流路において濃縮され、かつ上記第二の流路において所望の方向に収束されるように、各上記流路を流れる上記細胞に対して外力を与える機構と、
(iii) 上記第二の流路中を流れる上記細胞に光を照射する光照射手段と、少なくとも200フレーム/秒の画像取り込みレートで該細胞の画像を取得する高速カメラとを含む光学系と、
(iv)上記各部の動作を制御し、上記光学系により取り込まれた各上記細胞の画像を解析する制御・解析部と、
を備える、画像検出型一細胞分離・精製装置。
(10)上記外力が、超音波放射圧、重力、静電力、または誘電電気泳動力である、上記(9)に記載の装置。
(11)上記対象細胞を含む細胞試料が、血液に由来する、上記(9)または(10)に記載の装置。
(12)上記対象細胞が、癌細胞を含む、上記(9)~(11)のいずれかに記載の装置。
(13)上記制御・解析部が、上記光学系から得られる上記細胞の画像を2値化し、該2値化画像の輝度重心、面積、周囲長、長径、および短径からなる群から選択される少なくとも1つの指標によって、各上記細胞を一細胞レベルで検出し識別する、上記(9)~(12)のいずれかに記載の装置。
(14)上記細胞試料液中の上記細胞が蛍光標識されており、上記光学系が、蛍光検出手段をさらに含み、上記細胞の蛍光画像の情報が追加的な指標として上記制御・解析部により利用される、上記(13)に記載の装置。
(15)同じ長さと断面積の1つの試料流路とその両脇に対称に配置された2つのバッファ液流路が合流するように配置され、合流後に下流で再び同じ長さと断面積の中央の回収用流路とその両脇の2つの廃液流路に分配され、上流の3つの流路の入り口を覆うシース液リザーバーと、その中に試料を満たす試料液リザーバーが、その断面積の比が、流路数の比と同じ2:1となるように配置されており液が流れても両者の液面高さが一致するように構成されており、同様に下流でも廃液リザーバーと回収細胞用リザーバーの断面積の比が2:1となるように配置されており、合流点の上流に高速カメラおよび蛍光検出によって細胞を同定する機構を有し、合流点に対称にゲル電極が接するように配置されており、排除したい細胞にのみ電場を印加することを特徴としたオンチップ・セルソーター。
(16)上記セルソーターのリザーバーにおいて、シース液リザーバー上面に配置された栓と、栓を貫通して圧縮空気を印加する手段と、シース液リザーバーと試料リザーバーに液を連続して追加供給できる手段と、シース液リザーバーと試薬リザーバーの両者での液面高さを計測することができる電気センサーとを備えることを特徴とした上記(15)に記載のセルソーター。
(17)上記セルソーターのリザーバーにおいて、試薬液および2つのシース液を保存する個別の容器が、おのおの3つの流路の上流側入り口にそれぞれ配置されていることを特徴とした上記(15)に記載のセルソーター
(18)画像認識型セルソーターにおいて、細胞像の中での核の像の有無を基準として、選択的に細胞分裂中の細胞を回収することを特徴としたオンチップ・セルソーター。
(19)画像処理型セルソーターにおいて、像のブレを防ぐために、高速カメラの撮影各フレームレート速度において、各フレームで一回発火する時間について、
フラッシュ時間 = 画素サイズ/流速
の関係で決めることを特徴としたオンチップ・セルソーターシステム。
(1)細胞の濃縮、蛍光抗体標識(あるいは再培養を行う場合は必要に応じてアプタマー等の可逆蛍光標識マーカー)での染色、洗浄を含むプロセスを連続で行う細胞濃縮・染色・脱色部と、
(2)チップ基板上に形成したマイクロ流路を流れる細胞から、毎秒1万画像程度の細胞像の画像データを取得して、その画像情報の分析結果に基づいてリアルタイムで毎秒1万細胞を精製する画像検出型1細胞分離・精製(セルソーター)部と、
(3)1細胞レベルでの細胞内状態を計測する1細胞ゲノム解析・発現解析部と、
(4)上記各部の間での試料液の搬送を行うための送液部と、
(5)上記各部の動作を制御し、上記解析を行うための制御解析部と
を備える。
図1は、本発明の細胞分析装置を用いて行う、血中サンプルの採取から分析までの手順の一例を図示したものである。
フラッシュ時間 = 画素サイズ/流速
で、各シャッターのインターバルにおいてフラッシュを1回発光させれば良い。たとえば、1/2,000秒カメラの画素サイズは12 μm×12 μmであり、20倍の対物レンズで観察した場合の画素分解能は0.6 μm/pixelであることから、60cm/sの流れで、1μsの速度でフラッシュ発火を行うことができるLED光源を用いれば、実際にブレの無い画像を取得することができる。
10 細胞濃縮・染色・脱色モジュール
101 細胞サンプル容器
102 染色剤容器
103 洗浄剤容器
104 分注ヘッド
105 ターンテーブル
106 濃縮・脱色フィルター
107 濃縮チャンバー
108 チャンバー
109 圧力ポンプ
110 廃液回収チューブ
111 回収ヘッド
112 回収チューブ
113 回収チップ
114 シャーシ
20 画像検出型1細胞分離・精製モジュール
201 レーザー
202 ミラー
203 集光レンズ
204 ダイクロイックミラー
205 フィルター
206 蛍光検出用フォトマルチプライヤー
207 高速カメラ
208 前方散乱光検出用フォトダイオード
209 セルソーターチップ
210 チップ基板
211 マイクロ流路
212 流入口
213 流出口
214 細胞濃縮液入り口
215 細胞濃縮部
216 収束部
217 選別部
218 細胞検出領域
219 印加後の細胞の流れ
220 印加前の粒子の流れ
221 流出口
222 流出口
223 廃液回収部
224 細胞回収部
225 V字櫛形電極
30 1細胞ゲノム解析・発現解析モジュール
31 第一の温度制御ユニット
32 第二の温度制御ユニット
301 反応槽
302 熱交換槽
303 液体リザーバタンク
304 ポンプ
305 切り替えバルブ
306 補助温度制御機構
307 インレットA
308 インレットB
309 アウトレットA
310 アウトレットB
311 サンプル液
312 蛍光検出器
313 制御解析部
314 逆支弁
315 制御信号
40 送液モジュール
401 分注ヘッド
402 分注チップ
403 Z軸移動ガイド
404 Z軸移動モータ
405a,b アーム回転モータ
406 シャーシ
50 制御・解析モジュール(コンピュータ)
801 容器
802 微量サンプル
803 回転体
804 回転シャフト
805 試料
806 研磨剤
810 回転体
811 容器
812 柔軟性構造体
813 回転シャフト
814 先端部位
815 バネ機構
820 曲面カット
821 擂鉢状カット
822 噛み合い構造
823 半球型回転体
824 卵状回転体
825 突起型回転体
826 お碗状回転体
830 容器
831 回転体
832 研磨剤
833 封印
834 サンプル
835 回転シャフト
836 成分
840 一体化容器
841 開封用カッター
1301 セルソーターチップ
1302,1304,1306 上流側流路
1303,1305,1307 下流側流路
1308 試料液用入り口開口部
1309,1310 シース液用入り口開口部
1311 シース液リザーバー
1312 廃液リザーバー
1313,1314 シース液用出口開口部
1315 精製試料液用出口開口部
1316 ゲル充填のための流路
1317 ゲル充填のための入り口開口部
1318 ゲル充填のための出口開口部
1319 電線
1320 電源
1321 スイッチ
1322 試料液リザーバー
1323 精製試料回収用リザーバー
1401 セルソーターチップ
1402 キャップ
1403 シース液リザーバー
1404 試料液リザーバー
1405 加圧空気導入パイプ
1406 試料溶液導入チューブ
1407 シース液導入チューブ
1408 水位計測センサー
1409 流路
1501 セルソーターチップ
1502 大型リザーバー
1503 空気圧印加装置
1504 圧力センサー
1505 分配バルブ
1506 選別試料回収リザーバー
1507 廃液回収リザーバー
1601 試料溶液の流れ
1602,1603 サイドシース流
1604 細胞モニター領域
1605 ゲル電極
1606 選別試料回収流路
1607 サイドシース流
Claims (19)
- (A) 被験体からの細胞試料液を濃縮、染色、洗浄する第1の装置と、
(B) 前記第1の装置からの染色された細胞の試料液を濃縮・分離・精製する第2の装置と、
(C) 前記第2の装置からの細胞試料液中の精製された細胞の遺伝子解析・発現解析を行う第3の装置と、
(D) 前記第1~第3の装置にわたって連続的に前記細胞試料液を送液する第4の装置と、
(E) 前記各装置の動作を制御し、前記細胞試料の解析を行う制御・解析部と
を備える細胞分析装置システムであって、
(a) 前記第1の装置が、
前記細胞試料液中の細胞を濃縮、染色、洗浄するフィルターを備えたチャンバーと、
前記細胞試料液、染色液および洗浄液をそれぞれ収容する容器と、
各前記容器中の各液を前記チャンバー中に順次導入する機構と、
を備え、
(b) 前記第2の装置が、
対象細胞を含む細胞を含有する細胞試料液を流す流路を備えるセルソーターチップであって、前記流路が、前記細胞の濃縮が行われる第一の流路と、前記濃縮された前記細胞の検出および前記対象細胞の選別が行われる、前記第一の流路から分岐する第二の流路とを含む、セルソーターチップと、
各前記流路を流れる前記細胞が、前記第一の流路において濃縮され、かつ前記第二の流路において所望の方向に収束されるように、各前記流路を流れる前記細胞に対して外力を与える機構と、
前記第二の流路中を流れる前記細胞に光を照射する光照射手段と、少なくとも200フレーム/秒の画像取り込みレートで該細胞の画像を取得する高速カメラとを含む光学系と、
を備え、
(c) 前記第3の装置が、
試料液を添加して反応させる反応槽と、
前記反応槽との間で熱を交換する熱交換槽と、
前記熱交換槽の温度を制御する温度制御機構と、
を備える、細胞分析装置システム。 - 前記細胞試料液中の精製された細胞の遺伝子解析・発現解析を行う第3の装置の前段に、前記細胞試料液を送液する第4の装置によって搬送された前記細胞の内容物を細胞破砕によって試料液に溶出させる細胞破砕機構をさらに含み、
前記制御・解析部が、前記細胞試料液を送液する第4の装置によって前記第2の装置からの前記細胞試料液が前記細胞破砕機構へ搬送され、前記細胞破砕機構において破砕された試料液が、前記第4の装置によって前記第3の装置に搬送されるように前記各部を制御する、請求項1に記載の細胞分析装置システム。 - 前記細胞破砕機構が、
前記細胞試料を容れるための容器と、
前記容器内にて細胞を破砕するための破砕用回転体と、
前記容器内にて細胞を破砕するための研磨剤とを含み、
前記細胞試料と前記研磨剤とが前記容器の内部に添加され、自転および公転運動が厳密に制御された前記破砕用回転体の動きにより、前記細胞試料が破砕される、請求項2に記載の細胞分析装置システム。 - 前記細胞破砕機構がさらに回転シャフトを含み、
前記破砕用回転体が前記回転シャフトにより上から押し付けられることによって、前記容器の内部で回転し、前記破砕用回転体と前記回転シャフト間の摩擦力および滑りの程度が、前記破砕用回転体と回転シャフト間の圧力により制御される、請求項3に記載の細胞分析装置システム。 - 前記細胞破砕機構が、破砕用回転体の回転軸と回転シャフトの回転軸をずらすことにより、容器の側面に対して直角方向に破砕用回転体を押し付ける力を発生させることが可能な機構を備える、請求項4に記載の細胞分析装置システム。
- 前記細胞破砕機構が、前記回転シャフトの磁力、静電気力、または気体の圧力差による吸引力により前記破砕用回転体が前記容器の内部から持ち上げられ、除去されることが可能な機構を備える、請求項4に記載の細胞分析装置システム。
- 前記細胞破砕機構において、前記容器の自動交換を可能とする複数の容器を搭載した駆動機構を備えることにより異なる細胞試料間での汚染を排除できることを特徴とする、請求項3~6のいずれかに記載の細胞分析装置システム。
- 前記細胞破砕機構において、未使用の前記容器の内部には前記破砕用回転体が機密性シールにより封印して容れられており、前記細胞試料破砕時には前記容器および前記破砕用回転体が汚染されていないことが保証できることを特徴とする、請求項3~7のいずれかに記載の細胞分析装置システム。
- (i) 対象細胞を含む細胞を含有する細胞試料液を流す流路を備えるセルソーターチップであって、前記流路が、前記細胞の濃縮が行われる第一の流路と、前記濃縮された前記細胞の検出および前記対象細胞の選別が行われる、前記第一の流路から分岐する第二の流路とを含む、セルソーターチップと、
(ii) 各前記流路を流れる前記細胞が、前記第一の流路において濃縮され、かつ前記第二の流路において所望の方向に収束されるように、各前記流路を流れる前記細胞に対して外力を与える機構と、
(iii) 前記第二の流路中を流れる前記細胞に光を照射する光照射手段と、少なくとも200フレーム/秒の画像取り込みレートで該細胞の画像を取得する高速カメラとを含む光学系と、
(iv)前記各部の動作を制御し、前記光学系により取り込まれた各前記細胞の画像を解析する制御・解析部と、
を備える、画像検出型一細胞分離・精製装置。 - 前記外力が、超音波放射圧、重力、静電力、または誘電電気泳動力である、請求項9に記載の装置。
- 前記対象細胞を含む細胞試料が、血液に由来する、請求項9または10に記載の装置。
- 前記対象細胞が、癌細胞を含む、請求項9~11のいずれかに記載の装置。
- 前記制御・解析部が、前記光学系から得られる前記細胞の画像を2値化し、該2値化画像の輝度重心、面積、周囲長、長径、および短径からなる群から選択される少なくとも1つの指標によって、各前記細胞を一細胞レベルで検出し識別する、請求項9~12のいずれかに記載の装置。
- 前記細胞試料液中の前記細胞が蛍光標識されており、前記光学系が、蛍光検出手段をさらに含み、前記細胞の蛍光画像の情報が追加的な指標として前記制御・解析部により利用される、請求項13に記載の装置。
- 同じ長さと断面積の1つの試料流路とその両脇に対称に配置された2つのバッファ液流路が合流するように配置され、合流後に下流で再び同じ長さと断面積の中央の回収用流路とその両脇の2つの廃液流路に分配され、上流の3つの流路の入り口を覆うシース液リザーバーと、その中に試料を満たす試料液リザーバーが、その断面積の比が、流路数の比と同じ2:1となるように配置されており液が流れても両者の液面高さが一致するように構成されており、同様に下流でも廃液リザーバーと回収細胞用リザーバーの断面積の比が2:1となるように配置されており、合流点の上流に高速カメラおよび蛍光検出によって細胞を同定する機構を有し、合流点に対称にゲル電極が接するように配置されており、排除したい細胞にのみ電場を印加することを特徴としたオンチップ・セルソーター。
- 前記セルソーターのリザーバーにおいて、シース液リザーバー上面に配置された栓と、栓を貫通して圧縮空気を印加する手段と、シース液リザーバーと試料リザーバーに液を連続して追加供給できる手段と、シース液リザーバーと試薬リザーバーの両者での液面高さを計測することができる電気センサーとを備えることを特徴とした請求項15に記載のセルソーター。
- 前記セルソーターのリザーバーにおいて、試薬液および2つのシース液を保存する個別の容器が、おのおの3つの流路の上流側入り口にそれぞれ配置されていることを特徴とした請求項15に記載のセルソーター
- 画像認識型セルソーターにおいて、細胞像の中での核の像の有無を基準として、選択的に細胞分裂中の細胞を回収することを特徴としたオンチップ・セルソーター。
- 画像処理型セルソーターにおいて、像のブレを防ぐために、高速カメラの撮影各フレームレート速度において、各フレームで一回発火する時間について、
フラッシュ時間 = 画素サイズ/流速
の関係で決めることを特徴としたオンチップ・セルソーターシステム。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012501858A JP5807004B2 (ja) | 2010-02-24 | 2011-02-24 | 細胞分析装置 |
| US13/261,410 US9023294B2 (en) | 2010-02-24 | 2011-02-24 | Cell analyzer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010038210 | 2010-02-24 | ||
| JP2010-038210 | 2010-02-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011105507A1 true WO2011105507A1 (ja) | 2011-09-01 |
Family
ID=44506909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2011/054174 Ceased WO2011105507A1 (ja) | 2010-02-24 | 2011-02-24 | 細胞分析装置 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US9023294B2 (ja) |
| JP (1) | JP5807004B2 (ja) |
| WO (1) | WO2011105507A1 (ja) |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013102733A (ja) * | 2011-11-15 | 2013-05-30 | Hiroshima Univ | 微生物検出装置 |
| WO2013080939A1 (ja) | 2011-11-28 | 2013-06-06 | 財団法人神奈川科学技術アカデミー | 液体還流型高速遺伝子増幅装置 |
| WO2013133244A1 (ja) | 2012-03-06 | 2013-09-12 | 公益財団法人神奈川科学技術アカデミー | 高速遺伝子増幅検出装置 |
| WO2013146972A1 (ja) * | 2012-03-29 | 2013-10-03 | 公益財団法人神奈川科学技術アカデミー | 細胞機能制御方法 |
| JP2014528089A (ja) * | 2011-09-28 | 2014-10-23 | アコーソート アクチエボラグAcouSort AB | 細胞および/または粒子を分離するシステムおよび方法 |
| KR20160036239A (ko) * | 2014-09-25 | 2016-04-04 | 엘지전자 주식회사 | 미생물 측정유닛 |
| WO2017061619A1 (ja) * | 2015-10-09 | 2017-04-13 | シスメックス株式会社 | 検体処理チップ、検体処理装置および検体処理方法 |
| CN107224949A (zh) * | 2017-05-19 | 2017-10-03 | 四川大学 | 一种超重力场微反应器及液相沉淀法制备纳米材料的方法 |
| JP2018155768A (ja) * | 2012-11-28 | 2018-10-04 | エフ イー アイ カンパニFei Company | 信号に基づく試料の調製 |
| JP2018158328A (ja) * | 2017-03-23 | 2018-10-11 | 京セラ株式会社 | 粒子分離デバイスおよびそれを用いた粒子分離装置 |
| WO2019172428A1 (ja) | 2018-03-08 | 2019-09-12 | 富山県 | 粒子分離装置 |
| CN110366451A (zh) * | 2017-04-23 | 2019-10-22 | 惠普发展公司有限责任合伙企业 | 颗粒分离 |
| JP2020505612A (ja) * | 2017-02-08 | 2020-02-20 | ベクトン・ディキンソン・アンド・カンパニーBecton, Dickinson And Company | 乾燥色素試薬装置、ならびにその製造及び使用方法 |
| JP2021021709A (ja) * | 2019-07-30 | 2021-02-18 | 株式会社Cybo | イメージングフローサイトメーター、ソート方法、及び、キャリブレーション方法 |
| CN113030050A (zh) * | 2021-03-13 | 2021-06-25 | 长春长光辰英生物科学仪器有限公司 | 一种具备自冲洗结构的细胞检测装置以及冲洗方法 |
| CN113234658A (zh) * | 2021-06-30 | 2021-08-10 | 成都导胜生物技术有限公司 | 一种基于研磨制备存活单细胞的方法 |
| WO2021192786A1 (ja) | 2020-03-24 | 2021-09-30 | 株式会社Cybo | イメージングフローサイトメーター、ソート方法、及びキャリブレーション方法 |
| US20220122284A1 (en) * | 2019-01-29 | 2022-04-21 | Arizona Board Of Regents On Behalf Of The University Of Arizona | Fast volumetric imaging system and process for fluorescent tissue structures and activities |
| CN114689398A (zh) * | 2020-12-29 | 2022-07-01 | 英飞智信(苏州)科技有限公司 | 固体矿物制样系统及方法 |
| US11614443B2 (en) | 2016-04-22 | 2023-03-28 | Becton, Dickinson And Company | Multiplex polymeric dye devices and methods for using the same |
| US11780227B2 (en) | 2019-06-25 | 2023-10-10 | Hewlett-Packard Development Company, L.P. | Molded structures with channels |
| US11906410B2 (en) | 2018-07-04 | 2024-02-20 | Olympus Corporation | Cell inspection device and cell inspection method |
| US11992844B2 (en) | 2018-11-13 | 2024-05-28 | Becton, Dickinson And Company | Dried reagent strainers and methods for making and using the same |
| CN119470373A (zh) * | 2024-11-12 | 2025-02-18 | 生态环境部南京环境科学研究所 | 一种蓝藻毒素对水生生物的神经毒性分析系统及方法 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10052431B2 (en) | 2014-06-09 | 2018-08-21 | Ascent Bio-Nano Technologies, Inc. | System for manipulation and sorting of particles |
| TWI583986B (zh) * | 2016-03-11 | 2017-05-21 | Oncque Corp | Photoelectric diagonal material detection device |
| SG11201908847TA (en) | 2017-03-31 | 2019-10-30 | Life Technologies Corp | Apparatuses, systems and methods for imaging flow cytometry |
| US11877731B2 (en) * | 2020-03-07 | 2024-01-23 | Hall Labs Llc | Toilet with integral microscope slide |
| CN111337331B (zh) * | 2020-03-11 | 2022-12-06 | 桂林医学院 | 一种自动化染色脱色装置的操作方法 |
| CN113155580B (zh) * | 2021-04-26 | 2024-05-31 | 苏州德运康瑞生物科技有限公司 | 一种肿瘤血液细胞捕获染色仪 |
| CN118032620B (zh) * | 2024-04-11 | 2024-06-18 | 四川省乐珈生物科技有限公司 | 一种间充质干细胞质量检测装置及方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004050220A1 (ja) * | 2002-11-29 | 2004-06-17 | Nec Corporation | マイクロチップ、ならびにこれを用いた溶媒置換方法、濃縮方法、および質量分析システム |
| WO2006106823A1 (ja) * | 2005-03-31 | 2006-10-12 | Japan Science And Technology Agency | 分子マーカーを用いた間葉系幹細胞の識別方法及びその利用 |
| WO2008130977A2 (en) * | 2007-04-16 | 2008-10-30 | The General Hospital Corporation D/B/A Massachusetts General Hospital | Systems and methods for particle focusing in microchannels |
| WO2009021215A1 (en) * | 2007-08-09 | 2009-02-12 | Celula, Inc. | Methods and devices for correlated, multi-parameter single cell measurements and recovery of remnant biological material |
| WO2009123000A1 (ja) * | 2008-03-31 | 2009-10-08 | シスメックス株式会社 | 細胞処理装置、試料調製装置および細胞分析装置 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8815521B2 (en) * | 2000-05-30 | 2014-08-26 | Cepheid | Apparatus and method for cell disruption |
| AU3986501A (en) * | 2000-02-23 | 2001-09-03 | Zyomyx Inc | Chips having elevated sample surfaces |
| US8986944B2 (en) * | 2001-10-11 | 2015-03-24 | Aviva Biosciences Corporation | Methods and compositions for separating rare cells from fluid samples |
| US8980568B2 (en) * | 2001-10-11 | 2015-03-17 | Aviva Biosciences Corporation | Methods and compositions for detecting non-hematopoietic cells from a blood sample |
| EP1901067A3 (en) * | 2004-08-03 | 2009-05-13 | On-Chip Cellomics Consortium | Cellomics system |
| WO2006076567A2 (en) * | 2005-01-13 | 2006-07-20 | Micronics, Inc. | Microfluidic rare cell detection device |
| US7763453B2 (en) * | 2005-11-30 | 2010-07-27 | Micronics, Inc. | Microfluidic mixing and analytic apparatus |
| FR2896589B1 (fr) * | 2006-01-25 | 2008-04-25 | Biocode Hycel France Sa Sa | Cuvette d'analyse polyvalente |
| US8105783B2 (en) * | 2007-07-13 | 2012-01-31 | Handylab, Inc. | Microfluidic cartridge |
| JP2010252785A (ja) * | 2009-03-31 | 2010-11-11 | Kanagawa Acad Of Sci & Technol | 細胞濃縮分離装置 |
| CN103718012B (zh) * | 2011-07-27 | 2017-06-30 | 柯蒂斯有限责任公司 | 用于样本的裂解、特别是用于样本的自动的和/或受控的裂解的设备和方法 |
-
2011
- 2011-02-24 US US13/261,410 patent/US9023294B2/en not_active Expired - Fee Related
- 2011-02-24 JP JP2012501858A patent/JP5807004B2/ja not_active Expired - Fee Related
- 2011-02-24 WO PCT/JP2011/054174 patent/WO2011105507A1/ja not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004050220A1 (ja) * | 2002-11-29 | 2004-06-17 | Nec Corporation | マイクロチップ、ならびにこれを用いた溶媒置換方法、濃縮方法、および質量分析システム |
| WO2006106823A1 (ja) * | 2005-03-31 | 2006-10-12 | Japan Science And Technology Agency | 分子マーカーを用いた間葉系幹細胞の識別方法及びその利用 |
| WO2008130977A2 (en) * | 2007-04-16 | 2008-10-30 | The General Hospital Corporation D/B/A Massachusetts General Hospital | Systems and methods for particle focusing in microchannels |
| WO2009021215A1 (en) * | 2007-08-09 | 2009-02-12 | Celula, Inc. | Methods and devices for correlated, multi-parameter single cell measurements and recovery of remnant biological material |
| WO2009123000A1 (ja) * | 2008-03-31 | 2009-10-08 | シスメックス株式会社 | 細胞処理装置、試料調製装置および細胞分析装置 |
Non-Patent Citations (3)
| Title |
|---|
| FIEDLER S. ET AL: "Dielectrophoretic Sorting of Particles and Cells in a Microsystem", ANAL CHEM, vol. 70, no. 9, 1998, pages 1909 - 1915 * |
| HOFFMANN P.R. ET AL: "A new approach for analyzing cellular infiltration during allergic airway inflammation", J IMMUNOL METHODS, vol. 328, no. 1-2, 2007, pages 21 - 33 * |
| WOLFF A. ET AL: "Rare event cell sorging in a microfluidic system for application in prenatal diagnosis", MICRO TOTAL ANAL SYST 98, 1998, pages 77 - 80 * |
Cited By (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014528089A (ja) * | 2011-09-28 | 2014-10-23 | アコーソート アクチエボラグAcouSort AB | 細胞および/または粒子を分離するシステムおよび方法 |
| JP2013102733A (ja) * | 2011-11-15 | 2013-05-30 | Hiroshima Univ | 微生物検出装置 |
| WO2013080939A1 (ja) | 2011-11-28 | 2013-06-06 | 財団法人神奈川科学技術アカデミー | 液体還流型高速遺伝子増幅装置 |
| WO2013133244A1 (ja) | 2012-03-06 | 2013-09-12 | 公益財団法人神奈川科学技術アカデミー | 高速遺伝子増幅検出装置 |
| WO2013146972A1 (ja) * | 2012-03-29 | 2013-10-03 | 公益財団法人神奈川科学技術アカデミー | 細胞機能制御方法 |
| JP2018155768A (ja) * | 2012-11-28 | 2018-10-04 | エフ イー アイ カンパニFei Company | 信号に基づく試料の調製 |
| KR20160036239A (ko) * | 2014-09-25 | 2016-04-04 | 엘지전자 주식회사 | 미생물 측정유닛 |
| KR101667591B1 (ko) | 2014-09-25 | 2016-10-19 | 엘지전자 주식회사 | 미생물 측정유닛 |
| US11325120B2 (en) | 2015-10-09 | 2022-05-10 | Sysmex Corporation | Specimen treatment chip, specimen treatment apparatus, and specimen treatment method |
| JPWO2017061619A1 (ja) * | 2015-10-09 | 2018-08-09 | シスメックス株式会社 | 検体処理チップ、検体処理装置および検体処理方法 |
| WO2017061619A1 (ja) * | 2015-10-09 | 2017-04-13 | シスメックス株式会社 | 検体処理チップ、検体処理装置および検体処理方法 |
| US11614443B2 (en) | 2016-04-22 | 2023-03-28 | Becton, Dickinson And Company | Multiplex polymeric dye devices and methods for using the same |
| JP2020505612A (ja) * | 2017-02-08 | 2020-02-20 | ベクトン・ディキンソン・アンド・カンパニーBecton, Dickinson And Company | 乾燥色素試薬装置、ならびにその製造及び使用方法 |
| US11320437B2 (en) | 2017-02-08 | 2022-05-03 | Becton, Dickinson And Company | Dried dye reagent devices and methods for making and using the same |
| JP7058662B2 (ja) | 2017-02-08 | 2022-04-22 | ベクトン・ディキンソン・アンド・カンパニー | 乾燥色素試薬装置、ならびにその製造及び使用方法 |
| JP2018158328A (ja) * | 2017-03-23 | 2018-10-11 | 京セラ株式会社 | 粒子分離デバイスおよびそれを用いた粒子分離装置 |
| JP6992079B2 (ja) | 2017-04-23 | 2022-01-13 | ヒューレット-パッカード デベロップメント カンパニー エル.ピー. | 粒子分離 |
| CN110366451A (zh) * | 2017-04-23 | 2019-10-22 | 惠普发展公司有限责任合伙企业 | 颗粒分离 |
| JP2020507468A (ja) * | 2017-04-23 | 2020-03-12 | ヒューレット−パッカード デベロップメント カンパニー エル.ピー.Hewlett‐Packard Development Company, L.P. | 粒子分離 |
| US11325125B2 (en) | 2017-04-23 | 2022-05-10 | Hewlett-Packard Development Company, L.P. | Particle separation |
| CN107224949A (zh) * | 2017-05-19 | 2017-10-03 | 四川大学 | 一种超重力场微反应器及液相沉淀法制备纳米材料的方法 |
| CN107224949B (zh) * | 2017-05-19 | 2023-02-14 | 四川大学 | 一种超重力场微反应器及液相沉淀法制备纳米材料的方法 |
| WO2019172428A1 (ja) | 2018-03-08 | 2019-09-12 | 富山県 | 粒子分離装置 |
| US11906410B2 (en) | 2018-07-04 | 2024-02-20 | Olympus Corporation | Cell inspection device and cell inspection method |
| US11992844B2 (en) | 2018-11-13 | 2024-05-28 | Becton, Dickinson And Company | Dried reagent strainers and methods for making and using the same |
| US20220122284A1 (en) * | 2019-01-29 | 2022-04-21 | Arizona Board Of Regents On Behalf Of The University Of Arizona | Fast volumetric imaging system and process for fluorescent tissue structures and activities |
| US12020453B2 (en) * | 2019-01-29 | 2024-06-25 | Arizona Board Of Regents On Behalf Of The University Of Arizona | Fast volumetric imaging system and process for fluorescent tissue structures and activities |
| US12134274B2 (en) | 2019-06-25 | 2024-11-05 | Hewlett-Packard Development Company, L.P. | Molded structures with channels |
| US11780227B2 (en) | 2019-06-25 | 2023-10-10 | Hewlett-Packard Development Company, L.P. | Molded structures with channels |
| JP2021021709A (ja) * | 2019-07-30 | 2021-02-18 | 株式会社Cybo | イメージングフローサイトメーター、ソート方法、及び、キャリブレーション方法 |
| JP2021152453A (ja) * | 2020-03-24 | 2021-09-30 | 株式会社Cybo | イメージングフローサイトメーター、ソート方法、及びキャリブレーション方法 |
| WO2021192786A1 (ja) | 2020-03-24 | 2021-09-30 | 株式会社Cybo | イメージングフローサイトメーター、ソート方法、及びキャリブレーション方法 |
| CN114689398A (zh) * | 2020-12-29 | 2022-07-01 | 英飞智信(苏州)科技有限公司 | 固体矿物制样系统及方法 |
| CN113030050B (zh) * | 2021-03-13 | 2023-10-03 | 长春长光辰英生物科学仪器有限公司 | 一种具备自冲洗结构的细胞检测装置以及冲洗方法 |
| CN113030050A (zh) * | 2021-03-13 | 2021-06-25 | 长春长光辰英生物科学仪器有限公司 | 一种具备自冲洗结构的细胞检测装置以及冲洗方法 |
| CN113234658A (zh) * | 2021-06-30 | 2021-08-10 | 成都导胜生物技术有限公司 | 一种基于研磨制备存活单细胞的方法 |
| CN119470373A (zh) * | 2024-11-12 | 2025-02-18 | 生态环境部南京环境科学研究所 | 一种蓝藻毒素对水生生物的神经毒性分析系统及方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5807004B2 (ja) | 2015-11-10 |
| US9023294B2 (en) | 2015-05-05 |
| US20130029407A1 (en) | 2013-01-31 |
| JPWO2011105507A1 (ja) | 2013-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5807004B2 (ja) | 細胞分析装置 | |
| JP5712396B2 (ja) | イメージングセルソーター | |
| JPWO2015053393A1 (ja) | イメージングセルソーター | |
| US11865542B2 (en) | System and method for isolating and analyzing cells | |
| US9109197B2 (en) | Device for concentrating and separating cells | |
| US10232371B2 (en) | Microfluidic devices and methods for cell processing | |
| KR100746431B1 (ko) | 셀 소터 칩 | |
| Chung et al. | Recent advances in miniaturized microfluidic flow cytometry for clinical use | |
| CN114556084A (zh) | 细胞分析装置系统及细胞分析方法 | |
| US10391490B2 (en) | System and method for isolating and analyzing cells | |
| JP5580117B2 (ja) | 細胞分析装置 | |
| US11913870B2 (en) | Microfluidic chip device for optical force measurements and cell imaging using microfluidic chip configuration and dynamics | |
| CN114641450A (zh) | 使用光力和拉曼光谱取样和分析细胞的微流体装置和方法 | |
| JP2014183854A (ja) | 細胞分析装置 | |
| KR101391087B1 (ko) | 마이크로 웨이브에 의한 핵산 증폭 디스크 장치 및 이를 이용한 분석 방법 | |
| TW201217781A (en) | Microfluidic system for detecting a biological entity in a sample |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11747467 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2012501858 Country of ref document: JP |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 13261410 Country of ref document: US |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 11747467 Country of ref document: EP Kind code of ref document: A1 |