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CN106701742A - Blood collection tube for protecting and stabilizing free RNA (Ribonucleic Acid) - Google Patents

Blood collection tube for protecting and stabilizing free RNA (Ribonucleic Acid) Download PDF

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Publication number
CN106701742A
CN106701742A CN201611214321.7A CN201611214321A CN106701742A CN 106701742 A CN106701742 A CN 106701742A CN 201611214321 A CN201611214321 A CN 201611214321A CN 106701742 A CN106701742 A CN 106701742A
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CN
China
Prior art keywords
heparin tube
free rna
blood
blood collection
rna
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.)
Pending
Application number
CN201611214321.7A
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Chinese (zh)
Inventor
刘淑园
陈华云
肖湘文
丁渭
张天海
黄爽
曾烨
邓利琼
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GUANGZHOU HESHI BIOTECHNOLOGY Co Ltd
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GUANGZHOU HESHI BIOTECHNOLOGY Co Ltd
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Application filed by GUANGZHOU HESHI BIOTECHNOLOGY Co Ltd filed Critical GUANGZHOU HESHI BIOTECHNOLOGY Co Ltd
Priority to CN201611214321.7A priority Critical patent/CN106701742A/en
Publication of CN106701742A publication Critical patent/CN106701742A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N15/00Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
    • C12N15/09Recombinant DNA-technology
    • C12N15/10Processes for the isolation, preparation or purification of DNA or RNA
    • C12N15/1003Extracting or separating nucleic acids from biological samples, e.g. pure separation or isolation methods; Conditions, buffers or apparatuses therefor

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Organic Chemistry (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Biotechnology (AREA)
  • General Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Plant Pathology (AREA)
  • Molecular Biology (AREA)
  • Microbiology (AREA)
  • Biophysics (AREA)
  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

The invention discloses a blood collection tube for protecting and stabilizing free RNA (Ribonucleic Acid). The blood collection tube is composed of a test tube, a sealing rubber plug and a protective agent. According to the blood collection tube, after blood is collected in the tube, the tube is overturned up and down for 10 times, so that the blood is fully and uniformly mixed, and the blood is stored at room temperature. The free RNA can be protected for three days, and the blood collection tube can be used for protecting and storing the free RNA.

Description

A kind of protection and the heparin tube of the free RNA of stabilization
Technical field
The present invention relates to a kind of protection and the heparin tube of the free RNA of stabilization.
Background technology
Free RNA refer to be present in it is extracellular free in the body fluid such as serum, blood plasma, bronchoalveolar lavage fluid, urine, Pleural effusions RNA。
With the exhibition of not stopping paying out of diagnostic techniques, the effect of the RNA that dissociates is increasing.
Studies have found that, expression and body fluid middle reaches in the tumor-related gene of the patients such as lung cancer, breast cancer, melanoma Expression from cancer-related gene RNA is closely related, and free RNA can be as tumor markers, to differentiating Malignant and benign lesions There are preferably specificity and sensitiveness.
In Non-invasive Prenatal Diagnosis, free RNA also has the effect that can not be substituted.Free fetal rna molecule mainly comes Placenta is come from, and is stable in the presence of in parent blood circulation, it is easy to detected.Though Fetal genetic information is obtained to can be by obtaining tire Youngster's cell is carried out, if but obtaining the invasive of fetal cell with the tradition pre-natal diagnosis of such as amniocentesis and chorionic villi sampling etc. Mode of operation, the risk of miscarriage for having about 1%, this is greatly narrow diagnostic area.And carried out using female blood middle reaches isolated human fetal cell Pre-natal diagnosis, though non-invasive feature can be reached, its is cumbersome, is related to relatively costly cell enrichment process, it is impossible to general And in clinic.But, detected using the free RNA of parent, non-invasive effect can be reached, without excessively complicated mistake Journey, it is easy to clinic popularization, there is very big prospect.
But, substantial amounts of RNase is contained in the blood of people, free RNA is very easy to be degraded by RNase, and in blood Free RNA concentration it is very low.Clinically, most of blood for being to be gathered using heparin tube people.
And it is current, various heparin tubes are there are on the market, most of these heparin tubes all simply play anti-hemostasis The effect of liquid solidification, without playing a part of the free RNA of protection.And in CC, due to condition or the limit of time System, usually cannot after blood is obtained the very first time just carry out the extraction of free RNA.Cell rupture, substantial amounts of RNase, short Just most free RNA is degraded in short several hours, great obstacle is caused to subsequent experimental, experimental result is easy False negative is produced, so that valuable information cannot be provided for clinic.
It is therefore, a kind of that can to protect and stablize the heparin tube of free RNA be necessary.
The content of the invention
A kind of heparin tube it is an object of the invention to prepare protection and the free RNA of stabilization, the heparin tube can not only be prevented Blood clotting, and can protect and stablize, collect wherein free RNA.The heparin tube is by test tube, seal rubber plug and protection Agent composition.By blood collection to Guan Zhonghou, turning upside down 10 times, it is uniform to be sufficiently mixed.At room temperature, the free RNA in blood Can preserve 3 days, -20 DEG C to -80 DEG C can preserve for a long time.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of protection and the heparin tube of the free RNA of stabilization, it is characterised in that described test tube is by the poly- to benzene two of hydrophobic property Formic acid alcohol ester material is fabricated by, and described seal rubber plug is fabricated by by butyl rubber material.
It is a kind of protect and the free RNA of stabilization heparin tube, it is characterised in that the protective agent be by EDTA-3K, IDU, Bestain, glycine, AEBSF, ribonucleoside complex, guanidinium isothiocyanate, magnetic bead are dissolved in DEPC according to certain ratio Water is formulated, and wherein concentration of each component in the solution is respectively:EDTA-3K(20g-80g/L)、IDU(250- 700g/L)、bestain(0.06-0.38g/L)、glycine(15-68g/L)、AEBSF(0.01-0.34g/L), ribonucleotide Compound(0.2ml-1ml/L), guanidinium isothiocyanate(30-100g/L), magnetic bead(0.5-4mg/ml).
Preferably, the free protectant EDTA-3K of RNA of blood of the present invention, IDU, bestain, glycine, AEBSF, ribonucleoside complex, guanidinium isothiocyanate, the concentration of magnetic bead be respectively 40g/L, 500g/L, 0.2g/L, 35g/L, 0.162g/L、0.7ml/L、60g/L、1mg/ml。
Brief description of the drawings
Fig. 1 be whole blood sample in it is of the present invention it is a kind of protect and the heparin tube of the free RNA of stabilization in preserve 0 respectively, 1st, nucleic acid extraction is carried out after 2,3 days, the nucleic acid that extraction is obtained carries out β -- the testing result of catenin mRNA real-time fluorescence PCRs.
Fig. 2 is whole blood in conventional EDTA-Na2Nucleic acid extraction is carried out after preserving 0,1,2,3 days in heparin tube respectively, is extracted To nucleic acid carry out β -- the testing result of catenin mRNA real-time fluorescence PCRs.
Specific implementation method
Following case study on implementation is only used for explaining the present invention, rather than the limitation present invention.
Example:
With heparin tube of the present invention and routine EDTA-Na2Heparin tube randomly selects blood sample simultaneously, and each blood sample extracts 4 pipes respectively, often Temperature place 0 day, 1 day, 2 days, after 3 days carry out nucleic acid extraction(RNeasy Mini Kit (the 50)-article No. of Qiagen companies 74104 kits), enter pedestrian β by sample of the nucleic acid of extraction -- the real-time PCR detection of catenin mRNA genes.
Testing result:
It is placed in conventional EDTA-Na2Whole blood sample in the heparin tube of heparin tube and the free RNA of protection of the present invention, normal Temperature place different time after, nucleic acid extraction is carried out respectively, the nucleic acid of extraction enters pedestrian β -- catenin mRNA genes it is real-time glimmering Light PCR detections, the Ct values such as table 1 of its testing result.
Table 1
As shown in Table 1, the heparin tube of the free RNA of protection of the present invention can effectively protect free RNA in 3 days, only There is extremely slight degraded;And routine EDTA-Na2Heparin tube to the stability maintenance time of RNA less than 1 day and degraded situation ratio It is more serious.
Fig. 1 ~ Fig. 2 is the corresponding people β of table 1 -- the real-time PCR detection result figure of catenin mRNA genes, wherein scheming 1 carries out nucleic acid extraction for whole blood is placed in the heparin tube of protection free nucleic acid RNA as herein described after preservation different time, extracts The nucleic acid for obtaining carries out β -- the testing result figure of catenin mRNA gene real-time fluorescence PCRs, as seen from the figure, in the inspection of 0 ~ 3 day In the survey time, all detection samples are all correctly detected, and are had good stability, and free RNA is effectively protected;Fig. 2 is Whole blood is placed in conventional EDTA-Na2Nucleic acid extraction is carried out after different time is preserved in heparin tube, the nucleic acid that extraction is obtained carries out β -- The testing result figure of catenin mRNA gene real-time fluorescence PCRs, testing result shows, conventional EDTA-Na2Trip in heparin tube Can not all be maintained from the RNA stability of 1 day, degraded situation is extremely serious.
The heparin tube of the free RNA of protection of the present invention is a kind of heparin tube that can efficiently protect free RNA.

Claims (6)

1. it is a kind of protect and the free RNA of stabilization heparin tube, it is characterised in that the heparin tube be by test tube, seal rubber plug and Protective agent composition.
2. the heparin tube according to claim 1, it is characterised in that described test tube is by the poly- to benzene two of hydrophobic property Formic acid alcohol ester material is fabricated by.
3. the heparin tube according to claim 1, it is characterised in that described seal rubber plug is by butyl rubber material system Make and form.
4. the heparin tube according to claim 1, it is characterised in that described protective agent be by EDTA-3K, IDU, Bestain, glycine, AEBSF, ribonucleoside complex, guanidinium isothiocyanate, magnetic bead are dissolved in DEPC according to certain ratio Water, concentration is respectively 40g/L, 500g/L, 0.2g/L, 35g/L, 0.162g/L, 0.7ml/L, 60g/L, 1mg/ml.
5. the heparin tube according to claim 1, it is characterised in that the magnetic bead in the protective agent can be enriched with blood Free RNA.
6. the heparin tube according to claim 1 ~ 5, it is characterised in that in the application, by blood collection to Guan Zhonghou, up and down It is sufficiently mixed uniform, room temperature preservation for reverse 10 times.
CN201611214321.7A 2016-12-26 2016-12-26 Blood collection tube for protecting and stabilizing free RNA (Ribonucleic Acid) Pending CN106701742A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611214321.7A CN106701742A (en) 2016-12-26 2016-12-26 Blood collection tube for protecting and stabilizing free RNA (Ribonucleic Acid)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611214321.7A CN106701742A (en) 2016-12-26 2016-12-26 Blood collection tube for protecting and stabilizing free RNA (Ribonucleic Acid)

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CN106701742A true CN106701742A (en) 2017-05-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108261332A (en) * 2018-01-22 2018-07-10 无锡百泰克生物技术有限公司 A kind of blood rna preserves pipe
CN110747193A (en) * 2019-09-25 2020-02-04 广州市达瑞生物技术股份有限公司 Lung cancer polygene joint detection kit quality control product based on second-generation sequencing platform

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010134246A1 (en) * 2009-05-20 2010-11-25 オリンパス株式会社 Method for preparation of nucleic acid-containing sample
CN202458389U (en) * 2012-02-07 2012-10-03 山东侨牌集团有限公司 Disposable vacuum blood collecting tube
CN103789202A (en) * 2014-01-26 2014-05-14 付士明 Container for collecting nucleic acid preserved at normal temperature
CN104673623A (en) * 2015-02-05 2015-06-03 广州新诚生物科技有限公司 Blood sample collecting device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010134246A1 (en) * 2009-05-20 2010-11-25 オリンパス株式会社 Method for preparation of nucleic acid-containing sample
CN202458389U (en) * 2012-02-07 2012-10-03 山东侨牌集团有限公司 Disposable vacuum blood collecting tube
CN103789202A (en) * 2014-01-26 2014-05-14 付士明 Container for collecting nucleic acid preserved at normal temperature
CN104673623A (en) * 2015-02-05 2015-06-03 广州新诚生物科技有限公司 Blood sample collecting device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108261332A (en) * 2018-01-22 2018-07-10 无锡百泰克生物技术有限公司 A kind of blood rna preserves pipe
CN110747193A (en) * 2019-09-25 2020-02-04 广州市达瑞生物技术股份有限公司 Lung cancer polygene joint detection kit quality control product based on second-generation sequencing platform
CN110747193B (en) * 2019-09-25 2021-08-31 广州市达瑞生物技术股份有限公司 Lung cancer polygene joint detection kit quality control product based on second-generation sequencing platform

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