WO2022003063A1 - Construction d'adn pour le traitement de pathologies oculaires - Google Patents
Construction d'adn pour le traitement de pathologies oculaires Download PDFInfo
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- WO2022003063A1 WO2022003063A1 PCT/EP2021/068085 EP2021068085W WO2022003063A1 WO 2022003063 A1 WO2022003063 A1 WO 2022003063A1 EP 2021068085 W EP2021068085 W EP 2021068085W WO 2022003063 A1 WO2022003063 A1 WO 2022003063A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K48/00—Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseases; Gene therapy
- A61K48/005—Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseases; Gene therapy characterised by an aspect of the 'active' part of the composition delivered, i.e. the nucleic acid delivered
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- A61K38/1703—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates
- A61K38/1709—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from mammals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- A61K38/177—Receptors; Cell surface antigens; Cell surface determinants
- A61K38/179—Receptors; Cell surface antigens; Cell surface determinants for growth factors; for growth regulators
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K48/00—Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseases; Gene therapy
- A61K48/0008—Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseases; Gene therapy characterised by an aspect of the 'non-active' part of the composition delivered, e.g. wherein such 'non-active' part is not delivered simultaneously with the 'active' part of the composition
- A61K48/0016—Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseases; Gene therapy characterised by an aspect of the 'non-active' part of the composition delivered, e.g. wherein such 'non-active' part is not delivered simultaneously with the 'active' part of the composition wherein the nucleic acid is delivered as a 'naked' nucleic acid, i.e. not combined with an entity such as a cationic lipid
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K48/00—Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseases; Gene therapy
- A61K48/0075—Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseases; Gene therapy characterised by an aspect of the delivery route, e.g. oral, subcutaneous
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P27/00—Drugs for disorders of the senses
- A61P27/02—Ophthalmic agents
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- 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
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/11—DNA or RNA fragments; Modified forms thereof; Non-coding nucleic acids having a biological activity
- C12N15/62—DNA sequences coding for fusion proteins
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- 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
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
- C12N15/85—Vectors or expression systems specially adapted for eukaryotic hosts for animal cells
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K2319/00—Fusion polypeptide
- C07K2319/30—Non-immunoglobulin-derived peptide or protein having an immunoglobulin constant or Fc region, or a fragment thereof, attached thereto
Definitions
- the present invention relates to a novel DNA construct as well as its use in the treatment of ocular pathologies by non-viral gene therapy.
- a method according to the invention relates more particularly to said DNA construct allowing the targeted intraocular production of two therapeutic proteins for a period which can range up to several months.
- the DNA construct and its use according to the invention are more particularly suitable for the treatment of pathologies of the retina by means of an injection of the DNA construct into the ciliary muscle followed by an electrotransfer for intraocular production and long-lasting therapeutic proteins of interest.
- AMD age-related macular degeneration
- RD diabetic retinopathies
- Tuvéitis glaucoma
- retinitis pigmentosa hemorrhages resulting from ocular trauma and retinal detachment.
- AMD age-related macular degeneration
- DR diabetic retinopathies
- Tuvéitis represents a group of inflammatory eye diseases whose prevalence is estimated at 1/1000 and the incidence at 0.5 / 1000.
- Uveitis is responsible for 10% of blindness cases and therefore, although rarer than previous illnesses, has a major social and economic impact in young patients of working age.
- Glaucoma is the second leading cause of irreversible blindness worldwide. The number of people with glaucoma worldwide is expected to increase from 76 million in 2020 to 111 million in 2040.
- Glaucoma is characterized by abnormal intraocular pressure inducing progressive optic neuropathy characterized by degeneration retinal ganglion cells and loss of visual field. Intraocular pressure is currently the only risk factor for which there are treatments. However, glaucomatous damage persists in almost 50% of patients, despite a drop in intraocular pressure.
- Retinitis pigmentosa represents a clinically and genetically heterogeneous group of inherited disorders of the retina characterized by a progressive loss of photoreceptors at the periphery of the retina which then progresses to the macula. Visual impairment usually manifests as night blindness and progressive loss of visual field. Its prevalence is 1/3000 to 1/5000. More than 50 genes responsible for retinitis pigmentosa have been identified to date.
- the first anti-VEGF-type therapeutic proteins for Vascular Endothelial Growth Factor
- the first anti-VEGF-type therapeutic proteins were administered intraocularly for the treatment of choroidal neovascularization in AMD.
- Lucentis® ranibizumab
- Intraocular injections of therapeutic proteins, and in particular of recombinant proteins have since become common for the treatment of macular edema, AMD, diabetic retinopathy and venous obstructions.
- the anti-VEGFs described above are administered once a month or at best once every two months depending on the patient. There is therefore a need to monitor each patient to determine the frequency of administration of anti-VEGF for the treatment to be fully effective.
- This monitoring creates a significant constraint for the patients, the caregivers as well as for the caregivers which most often results in a suboptimal and ineffective treatment in the long term (Ciulla 2020, Ophthalmology Retina 2020; 4: 19-30).
- this method of treatment induces variations in the level of therapeutic protein in the eye sphere of the patient, namely a high concentration during the injection (a peak) and a concentration which gradually diminishes to tend towards zero. until the next injection.
- the concentration of therapeutic protein is therefore not regular and is not optimal for the entire duration of treatment.
- the risk of side effects associated with intravitreal administration increases with repeated administration (Schargus 2020, Clinical Ophthalmology 2020: 14 897-904).
- uveitis is defined as an inflammatory process that affects the iris, ciliary body or choroid of the patient's eye, these three elements forming uvea. It is a generic term that covers several different pathologies whose causes remain unknown but are generally of two types: infectious uveitis and non-infectious uveitis.
- infectious uveitis which affects the iris or the ciliary body and is the most common uveitis in western countries, intermediate uveitis which affects the anterior vitreous, and posterior uveitis which affects the choroid and the retina.
- Non-infectious uveitis often has an autoimmune component.
- Acute anterior uveitis associated with the HLA-B27 antigen is the primary cause of uveitis (Rothova et a 1., Br J Ophthalmol. 1992; 76: 137-41).
- uveitis associated with many rheumatic diseases such as sarcoidosis.
- Posterior uveitis of non-infectious cause is most often associated with Behçet's disease, Vogt Koyanagi Harada disease, Birdshot chorio-retinopathy, etc.
- Treatment with oral and / or topical corticosteroids is widely used in the treatment of non-infectious posterior uveitis.
- immunosuppressants can be added to the treatment to increase the anti-inflammatory effects of corticosteroids.
- This concerns in particular but not exclusively cyclosporine, methotrexate, G azathioprine, mycophenolate mofetil, tacrolimus and chlorambucil.
- treatments using anti-TNF alpha antibodies have also been used, including Humira® (Adalimumab) recently approved for the treatment of non-infectious uveitis with inflammation of the back of the eye.
- the treatment methods described above therefore have several drawbacks.
- the therapeutic compounds administered systemically and topically cause a large number of side effects.
- Recombinant proteins administered by intravitreal injections should be administered frequently with large fluctuations in concentrations between each administration. The repetition of these injections remains extremely heavy and stressful for the patients and can also cause side effects. (increased intraocular pressure, intraocular inflammation, endophthalmitis, cataracts, etc.). Thus, in the end, many patients forgo their treatment.
- the inventors have previously proposed, as illustrated in particular in application FR3031112, to reduce the number and / or the frequency of the surgeon's interventions, and therefore to reduce the invasive aspect of intraocular injections, while ensuring stable and constant production of a therapeutic protein over a period of several months via the implementation of a DNA construct intended for the non-viral transfer of nucleic acids into the muscle cells of the ocular sphere of a patient.
- This construct comprises an origin of replication, a promoter allowing the expression of G DNA in the ocular sphere of the patient, one or more sequences promoting the expression of DNA in the ocular sphere of the patient, and a polynucleotide encoding a protein therapy selected for its activity in the treatment of ocular pathologies, said construct being brought into the ocular sphere by direct injection into the ciliary muscle followed by an electrotransfer.
- the treatment of the ocular pathologies mentioned above may however require the use of two therapeutic active ingredients, of a second compound which potentiates the effectiveness of a therapeutic active ingredient, or of a compound consisting of 2 peptide subunits.
- a composition comprising two types of DNA constructs, distinguished in that a first type allows the expression of the first molecule d. 'interest while a second type allows the expression of the second molecule of interest.
- the inventors consequently propose, in the context of the present invention, the implementation of a DNA construct comprising the sequences encoding the two proteins of interest. Summary of the invention
- a first object of the present invention therefore relates to a DNA construct for its use in the treatment of an ocular pathology, said DNA construct being intended for the non-viral transfer of nucleic acids into the muscle cells of the ocular sphere. a patient suffering from said ocular pathology; said DNA construct being characterized in that it comprises:
- the first therapeutic protein of a DNA construct according to the invention is an anti-VEGF type protein, in particular chosen from the group consisting of S-Fltl, Aflibercept, conbercept, brolucizumab, and in particular of a protein having at least 85% sequence identity with the peptide sequence SEQ ID NO: 3, this protein being more particularly Aflibercept.
- the first therapeutic protein is encoded by a nucleotide sequence having at least 75% sequence identity with the sequence SEQ ID NO: 1, and is more particularly encoded by the nucleotide sequence SEQ ID NO: 2.
- the second therapeutic protein of a DNA construct according to the invention is a protein having at least 85% sequence identity with the sequence SEQ ID NO: 8, this protein being more particularly decorin .
- the second therapeutic protein is encoded by a nucleotide sequence having at least 70% sequence identity with the sequence SEQ ID NO: 6, and in particular by a sequence chosen from the group consisting of the nucleotide sequences SEQ ID NO: 7, SEQ ID NO: 9, SEQ ID NO: 10, SEQ ID NO: 11 and SEQ ID NO: 12, more particularly constituted by the sequence SEQ ID NO: 7 and the sequence SEQ ID NO: 1, and in particular the sequence SEQ ID NO: 11.
- a DNA construct for its use according to the invention is such that:
- the first nucleotide sequence encodes: - for a protein having at least 85% sequence identity with the sequence SEQ ID NO: 3, this protein being more particularly Aflibercept;
- the origin of replication of a DNA construct as mentioned above is bacterial, and is in particular an origin of replication derived from the natural plasmid R6K of Escherichia coli, in particular the origin of R6K gamma replication of the natural R6k plasmid of Escherichia coli, in particular of sequence SEQ ID NO: 31.
- the DNA construct according to the invention can be linear or circular in shape, in particular circular in shape.
- the DNA construct according to the invention is a circular plasmid.
- the DNA construct is a naked DNA construct.
- a DNA construct for its use as mentioned above is characterized in that the ocular pathology is retinal degeneration, in particular retinal degeneration selected from the group consisting of macular degeneration related to l 'age (AMD), wet or dry; diabetic retinopathies (DR); retinal venous occlusion, in particular central retinal vein occlusion (CRVO) or branch retinal vein occlusion (OBVR); myopic choroidal neovascularization (CNV); uveitis, especially non-infectious uveitis; retinitis pigmentosa and glaucoma, and more particularly in that the retinal degeneration is selected from the group consisting of age-related macular degeneration (AMD), in particular the neovascular (wet) form of the AMD; reduced visual acuity due to diabetic macular edema (DME); retinal venous occlusion, in particular central retinal vein occlusion (CRVO) or branch retina
- AMD age
- Another object of the present invention relates to a DNA construct intended for the non-viral transfer of nucleic acids into the muscle cells of the ocular sphere of a patient for the treatment of ocular pathologies, characterized in that it comprises: (a) an origin of bacterial or prokaryotic, in particular bacterial, replication,
- said first therapeutic protein being a protein having at least 85% sequence identity with the sequence SEQ ID NO: 3, this protein being more particularly G Aflibercept, and
- a signal peptide allowing the secretion of this first therapeutic protein, in particular a signal peptide of peptide sequence SEQ ID NO: 4, this signal peptide being contiguous with the sequence of the first therapeutic protein, at the N-terminal of said first protein therapeutic;
- said second therapeutic protein being a protein having at least 85% sequence identity with the sequence SEQ ID NO: 8, this protein being more particularly decorin, and
- a signal peptide allowing the secretion of this first therapeutic protein, in particular a signal peptide of peptide sequence SEQ ID NO: 13, this signal peptide being contiguous with the sequence of the second therapeutic protein, at the N-terminal of said second protein therapeutic;
- the DNA construction according to the invention is such that: c) the first nucleotide sequence comprises:
- nucleotide sequence encoding G Aflibercept and in particular a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 1, and is in particular the sequence SEQ ID NO: 2;
- the second nucleotide sequence comprises: a nucleotide sequence encoding decorin, more particularly a nucleotide sequence having at least 70% sequence identity with the sequence SEQ ID NO: 6, more particularly a sequence chosen from the group consisting of sequences SEQ ID NO: 7, SEQ ID NO: 9, SEQ ID NO: 10, SEQ ID NO: 11 and SEQ ID NO: 12, and is in particular the sequence SEQ ID NO: 7 or the sequence SEQ ID NO: 11; and
- Figure 1 shows a DNA construct according to the invention (Plasmid A).
- FIG. 2 represents a DNA construct not in accordance with the invention since it encodes only a single therapeutic protein (transferrin - same sequence as that used in Plasmid A), the latter being, just as in Plasmid A , under the control of a CMV type promoter (Plasmid a ').
- FIG. 3 represents the variation in the concentration of Transferrin of sequence SEQ ID NO: 17 (ordinate: pg / mL) in the eye fluids of rats from 3 to 30 days (abscissa: days post-electrotransfer (D0)) after the administration of a construction, in accordance with the invention (Plasmid A) or of a construction not in accordance with the invention (Plasmid a ') because it only encodes transferrin, the latter being under the control of the same promoter as in plasmid A, in the ciliary muscle of both eyes of said rats.
- Each group of rats was thus administered a specific construct of the two mentioned.
- Figure 4 represents the variation of the concentration of anti-TNF-alpha fusion protein of sequence SEQ ID NO: 22 (ordinate: pg / mL) in the eye fluids of rats from 3 to 30 days old (abscissa: days post-electrotransfer (J0)) after the administration of a construct, in accordance with the invention (Plasmid A) in the ciliary muscle of the two eyes of said rats.
- FIG. 5 shows a DNA construct according to the invention (Plasmid B).
- FIG. 6 represents a DNA construct not in accordance with the invention since it encodes only a single therapeutic protein (aflibercept - same sequence as that used in Plasmid B, ie sequence SEQ ID NO: 2), that- ci being, just as in Plasmid B, under the control of a promoter of the CAG type (Plasmid b ').
- Figure 7 represents the variation of the Aflibercept concentration of sequence SEQ ID NO: 3 (ordinate: pg / mL) in the eye fluids of rats from 3 to 21 days (abscissa: days post electrotransfer (D0)) after administration of a construction in accordance with the invention (Plasmid B) or of a construction not in accordance with the invention (Plasmid b ') because it only encodes for aflibercept, the latter being under the control of the same promoter as in plasmid B, in the ciliary muscle of the two eyes of said rats.
- Each group of rats was thus administered a specific construct among the two mentioned.
- Figure 8 represents the variation of the concentration of Decorin of sequence SEQ ID NO: 8 (ordinate: pg / mL) in the eye fluids of rats from 3 to 21 days (abscissa: days post electrotransfer (D0)) after administration of a construction according to the invention (Plasmid B) in the ciliary muscle of the two eyes of said rats.
- Figure 9 shows a DNA construct according to the invention (Plasmid C).
- Figure 10 represents the percentage of impact presenting a severe leak (grade 3) (ordinate:% Grade 3 CNV Lesions) according to the treatments (abscissa). On the left: vehicle (control). Right: Plasmid C.
- treating and “treatment” associated with an ocular pathology denote a reduction or even an interruption of said pathology.
- patient as used in the present text preferably denotes a mammal, including a non-human mammal, and more particularly a human being.
- first nucleotide sequence and “second nucleotide sequence” are used in the present text in order to allow, when reading it, to clearly distinguish between these two sequences and the proteins which they encode.
- nucleotide sequences correspond to expression cassettes, each of these cassettes being as defined below.
- first nucleotide sequence and “second nucleotide sequence” are not, however, intended to indicate the order in which these expression sequences / cassettes are present in a construct according to the invention.
- first nucleotide sequence in the reading direction of a construct according to the invention, the first nucleotide sequence may be present before the second nucleotide sequence.
- second nucleotide sequence in the sense of reading a construct according to the invention, the second nucleotide sequence may be present before the first nucleotide sequence.
- the "first nucleotide sequence” comprises a sequence encoding a first therapeutic protein and a sequence encoding a signal peptide, these sequences being, within the “first nucleotide sequence”, in the order as specifically indicated with respect to each other, namely that the sequence encoding the signal peptide is such that the peptide signal is at the N-terminus of the first therapeutic protein, ie the sequence encoding the signal peptide is 5 'of the sequence encoding the first therapeutic protein.
- the “second nucleotide sequence” comprises a sequence encoding a second therapeutic protein and a sequence encoding a signal peptide, these sequences being, within the “second nucleotide sequence” , in the order as specifically indicated with respect to each other, namely that the sequence encoding the signal peptide is such that the signal peptide is at the N-terminus of the second therapeutic protein, ie the sequence encoding the peptide signal is 5 'of the sequence encoding the second therapeutic protein.
- the "percentage identity" between two sequences of amino acids or nucleic acids, within the meaning of the present invention, is determined by comparing the two optimally aligned sequences, through a comparison window.
- the part of the nucleotide sequence in the comparison window can thus comprise additions or deletions (for example "gaps") with respect to the reference sequence (which does not include these additions or these deletions) so as to obtain a optimal alignment between the two sequences.
- Percent identity is calculated by determining the number of positions at which an identical amino acid (or identical nucleic base) is observed for the two sequences compared, then dividing the number of positions at which there is identity between the two amino acids. (or between the two nucleic bases) by the total number of positions in the comparison window, then by multiplying the result by one hundred in order to obtain the percentage identity in amino acids (or in nucleotides) of the two sequences between them.
- Optimal alignment of sequences for comparison can be achieved by computer using known algorithms.
- an amino acid sequence having for example at least 80% identity in amino acids with a reference amino acid sequence encompasses the amino acid sequences having at least 81%, 82% , 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98% or at minus 99% amino acid identity with said reference sequence.
- nucleotide sequence having for example at least 80% nucleotide identity with a reference nucleotide sequence encompasses nucleotide sequences having at least 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98% or at least 99% identity in nucleotides with said reference sequence.
- the present invention primarily relates to a DNA construct for its use in the treatment of ocular pathology.
- This construct is intended for the non-viral transfer of nucleic acids into the muscle cells of the ocular sphere of a patient suffering from said ocular pathology.
- a DNA construct according to the present invention is characterized in that it comprises (a) a bacterial or prokaryotic origin of replication.
- such an origin of replication is in particular bacterial and may for example be an origin of replication of the Escherichia coli type, more particularly chosen from the group consisting of an origin of replication obtained from the natural plasmid R6K of Escherichia coli, in particular the R6K gamma origin of replication of the natural R6k plasmid of Escherichia coli; and the pUC OriC origin of replication.
- origins of replication derived from the natural plasmid R6K of Escherichia coli are in particular defined in patent EP1366176B2.
- a DNA construct according to the invention is moreover characterized in that it comprises (b) one or more sequence (s) promoting the expression of DNA in the ocular sphere of the patient.
- sequences promoting the expression of DNA are well known to those skilled in the art, such as, for example, sequences of enhancer type, also called sequences. enhancer or activator sequences. Mention may be made, for example, of the enhancer sequences derived from cytomegalovirus (CMV) and / or from the simian DNA tumor virus SV40.
- CMV cytomegalovirus
- a DNA construct according to the invention is moreover also characterized in that it comprises (c) a first nucleotide sequence coding in particular for a first therapeutic protein as well as (f) a second nucleotide sequence coding in particular for a second therapeutic protein , different from the first therapeutic protein.
- a DNA construct according to the invention comprises only two sequences encoding therapeutic proteins, ie comprises only two expression cassettes, each of these expression cassettes comprising one of the two. sequences encoding a therapeutic protein.
- first and second therapeutic proteins can in particular be chosen from proteins known for their effect on ocular pathologies.
- first and second therapeutic proteins which are different from each other, can for example be chosen from the group consisting of:
- a protein with anti-fibrotic properties such as the BMP7 protein (Bone
- Morphogenic Protein 7 an anti TGF-beta type protein, an anti FGF2 type protein, an anti CTGF type protein (connective tissue growth factor), and in particular a protein having at least 85% identity of sequence with the sequence SEQ ID NO: 8, this protein being more particularly decorin;
- a protein having anti-inflammatory properties in particular an anti-TNF-type protein, such as for example hTNFR-Is, hTNFR-Is / mlgGl, Lenercept or the fusion protein comprising the domain extracellular human TNF alpha receptor p55 coupled via a hinge to the constant fragment of human immunoglobulin IgG1, more particularly an anti TNF-alpha type protein, in particular a fusion protein comprising the extracellular domain of the human p55 TNF alpha receptor coupled via a hinge to the constant fragment of human immunoglobulin IgG1 (Peppel et al., J Exp Med, 174: 1483-1489 - Murphy et al., Arch Ophtalmol, 22: 845-851), and more particularly a protein having at least 85% sequence identity with the sequence SEQ ID NO: 22; (iv) an anti-VEGF-type protein, in particular selected from the group consisting of S-Fltl, Aflibercept, conbercept
- a protein having anti-angiogenic properties such as angiostatin, endostatin, thrombospondin, an anti angiopoietin-2 type protein, an anti FGF2 type protein, an anti PLGF type protein, an anti PDGF-like protein; and
- a protein regulating complement activation such as complement factor I (CFI)
- CFI complement factor I
- a protein having at least 85% sequence identity with the sequence SEQ ID NO: 26, this protein being more particularly the H factor of the complement is particularly particularly the CFI of the complement.
- a protein having at least 85% sequence identity with the sequence SEQ ID NO: 17 comprises a protein having at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98% at less 99% and 100% sequence identity with the sequence SEQ ID NO: 17.
- this protein is more particularly transferrin (ie a protein having 100% sequence identity with the sequence SEQ ID NO: 17 ).
- a protein having at least 85% sequence identity with the sequence SEQ ID NO: 8 comprises a protein having at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98% at less 99% and 100% sequence identity with the sequence SEQ ID NO: 8.
- this protein is more particularly decorin (ie a protein having 100% sequence identity with the sequence SEQ ID NO: 8 ).
- a protein having at least 85% sequence identity with the fusion protein of sequence SEQ ID NO: 22 comprises a protein having at least 86%, at least 87%, at least 88%, at least at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least at least 98% at least 99% and 100% sequence identity with the sequence SEQ ID NO: 22.
- this protein is more particularly the fusion protein comprising the extracellular domain of the human receptor p55 to TNF alpha coupled via a hinge to the constant fragment of human immunoglobulin IgG1 of sequence SEQ ID NO: 22.
- a protein having at least 85% sequence identity with the sequence SEQ ID NO: 3 comprises a protein having at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98% at less 99% and 100% sequence identity with the sequence SEQ ID NO: 3.
- this protein is more particularly aflibercept (ie a protein having 100% sequence identity with the sequence SEQ ID NO: 3).
- a protein having at least 85% sequence identity with the sequence SEQ ID NO: 26 comprises a protein having at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98% at less 99% and 100% sequence identity with the sequence SEQ ID NO: 26.
- this protein is more particularly the factor H of the complement (ie a protein having 100% sequence identity with the sequence SEQ ID NO: 26).
- sequences encoding the first and second therapeutic proteins which are different from each other, can for example be chosen from the group consisting of:
- nucleotide sequence encoding transferrin in particular a nucleotide sequence having at least 75% sequence identity with the sequence SEQ ID NO: 15, and is in particular the sequence SEQ ID NO: 16;
- a nucleotide sequence encoding a protein having anti-fibrotic properties such as the BMP7 protein (Bone Morphogenic Protein 7), an anti TGF-beta type protein, an anti FGF2 type protein, a protein of anti CTGF type (connective tissue growth factor), and in particular of a protein encoding decorin, more particularly of a nucleotide sequence having at least 70% sequence identity with the sequence SEQ ID NO: 6, more particularly of a sequence chosen from the group consisting of the sequences SEQ ID NO: 7, SEQ ID NO: 9, SEQ ID NO: 10, SEQ ID NO: 11 and SEQ ID NO: 12, and is in particular the sequence SEQ ID NO : 7 or the sequence SEQ ID NO: 11, and more particularly the sequence SEQ ID NO: 11;
- a nucleotide sequence encoding a protein having anti-inflammatory properties in particular an anti-TNF-type protein, such as for example hTNFR-Is, hTNFR-Is / mlgGl, Lenercept or the protein fusion comprising the extracellular domain of the human TNF alpha receptor p55 coupled via a hinge to the constant fragment of human immunoglobulin IgG1, more particularly a sequence encoding an anti-TNF-alpha-type protein, in particular a fusion protein comprising the extracellular domain of the human p55 receptor for TNF alpha coupled via a hinge to the constant fragment of the human immunoglobulin IgG1, and more particularly a sequence having at least 85% sequence identity with the sequence SEQ ID NO: 21;
- nucleotide sequence encoding an anti-VEGF type protein such as S-Fltl, Aflibercept, conbercept, brolucizumab, and in particular a sequence encoding F Aflibercept, more particularly of a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 1, in particular the sequence SEQ ID NO: 2;
- a sequence encoding a protein having anti-angiogenic properties such as angiostatin, endostatin, thrombospondin, an anti-angiopoietin-2-like protein, an anti-FGF2-like protein, a protein of anti PLGF-like, an anti-PDGF-like protein;
- sequences encoding the first and second therapeutic proteins it should not be understood “first nucleotide sequence” and “second nucleotide sequence” as indicated above, but the sequences which are present within the first nucleotide sequence and within the second nucleotide sequence according to the invention, and which specifically encode the first and the second therapeutic proteins.
- the first or the second therapeutic protein of a DNA construct according to the invention is a protein having at least 85% sequence identity with the sequence SEQ ID NO: 17, this protein being more particularly transferrin.
- a DNA construct according to the invention can be characterized in that the first nucleotide sequence or the second nucleotide sequence encodes:
- one of the sequences encoding the first and second therapeutic proteins of a DNA construct according to the invention can in particular be a nucleotide sequence encoding transferrin, and in particular a sequence having at least 75% of sequence identity with the sequence SEQ ID NO: 15, and is in particular the sequence SEQ ID NO: 16.
- a DNA construct according to the invention can be characterized in that the first nucleotide sequence or the second nucleotide sequence understand :
- nucleotide sequence encoding transferrin and in particular a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 15, and is in particular the sequence SEQ ID NO: 16;
- nucleotide sequence SEQ ID NO: 20 encoding a signal peptide.
- the first and second therapeutic proteins encoded by a DNA construct according to the invention are respectively:
- a protein of anti-TNF-alpha type in particular a protein having at least 85% sequence identity with the sequence SEQ ID NO: 22, and more particularly the fusion protein comprising the extracellular domain of the human p55 receptor at TNF alpha coupled via a hinge to the constant fragment of human immunoglobulin IgG1 of sequence SEQ ID NO: 22.
- sequences encoding the first and second therapeutic proteins of a DNA construct according to the invention are respectively:
- nucleotide sequence encoding transferrin and in particular a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 15, and is in particular the sequence SEQ ID NO: 16;
- sequence encoding an anti-TNF-alpha type protein in particular a sequence encoding the fusion protein comprising the extracellular domain of the human p55 receptor for TNF alpha coupled via a hinge to the constant fragment of human immunoglobulin IgG1, of peptide sequence SEQ ID NO: 22, and in particular a nucleotide sequence having at least 85% sequence identity with the sequence SEQ ID NO: 21.
- Inflammation and oxidative stress are important components of retinal degenerations such as AMD or glaucomatous neuropathy resulting from the increase in intraocular pressure caused by glaucoma.
- an increase in Intraocular TNF alpha concentrations are observed in glaucomatous eyes (Tezel et al., 2001, Invest Ophthalmol Vis Sci. 2001 Jul; 42 (8): 1787-94) and Injection of TNF-alpha into rodent eye induces degeneration axonal optic nerve and programmed death of retinal ganglion cells (Kitaoka 2006, Invest Ophthalmol Vis Sci. 2006; 47: 1448-1457).
- a DNA construct according to the invention can be characterized in that:
- the first nucleotide sequence comprises:
- nucleotide sequence encoding transferrin and in particular a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 15, and is in particular the sequence SEQ ID NO: 16;
- nucleotide sequence SEQ ID NO: 20 encoding a signal peptide; and (f) the second nucleotide sequence comprises:
- nucleotide sequence encoding an anti-TNF-alpha type protein in particular a sequence encoding the fusion protein comprising the extracellular domain of the human p55 receptor for TNF alpha coupled via a hinge to the constant fragment of human immunoglobulin IgG1 , of peptide sequence SEQ ID NO: 22, and in particular a nucleotide sequence having at least 85% sequence identity with the sequence SEQ ID NO: 21, and in particular the sequence SEQ ID NO: 21; and
- nucleotide sequence SEQ ID NO: 23 encoding a signal peptide.
- a DNA construct according to the invention can be characterized in that:
- this protein being more particularly the fusion protein comprising the domain extracellular human TNF alpha receptor p55 coupled via a hinge to the constant fragment of human immunoglobulin IgG1 G of sequence SEQ ID NO: 22;
- the first and second therapeutic proteins encoded by a DNA construct according to the invention are respectively:
- a protein having anti-fibrotic properties in particular a protein having at least 85% sequence identity with the sequence SEQ ID NO: 8, this protein being more particularly decorin.
- sequences encoding the first and second therapeutic proteins of a DNA construct according to the invention are respectively:
- nucleotide sequence encoding transferrin and in particular a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 15, and is in particular the sequence SEQ ID NO: 16;
- nucleotide sequence encoding a protein having anti-fibrotic properties such as the BMP7 protein (Bone Morphogenic Protein 7), an anti TGF-beta type protein, an anti FGF2 type protein, an anti CTGF type protein ( connective tissue growth factor), and in particular of a protein encoding decorin, more particularly of a nucleotide sequence having at least 70% sequence identity with the sequence SEQ ID NO: 6, more particularly of a sequence chosen from the group consisting of the sequences SEQ ID NO: 7, SEQ ID NO: 9, SEQ ID NO: 10, SEQ ID NO: 11 and SEQ ID NO: 12, and is in particular the sequence SEQ ID NO: 7 or the sequence SEQ ID NO: 11, and more particularly the sequence SEQ ID NO: 11.
- Glaucoma particularly primary open-angle glaucoma, is characterized by increased intraocular pressure following fibrosis of the trabecular meshwork, and loss of retinal ganglion cells and optic nerve degeneration.
- Current treatments for glaucoma reduce intraocular pressure but do not slow down the progression of neurodegeneration.
- the administration of an agent acting as a neuroprotector, such as an anti-TNF or transferrin advantageously makes it possible to potentiate the effects of an anti-fibrotic such as decorin, and both reduce intraocular pressure and protect the retina and optic nerve from degeneration.
- a DNA construct according to the invention can be characterized in that:
- the first nucleotide sequence comprises:
- nucleotide sequence encoding transferrin and in particular a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 15, and is in particular the sequence SEQ ID NO: 16;
- nucleotide sequence SEQ ID NO: 20 encoding a signal peptide; and (f) the second nucleotide sequence comprises:
- nucleotide sequence encoding decorin more particularly a nucleotide sequence having at least 70% sequence identity with the sequence SEQ ID NO: 6, more particularly a sequence chosen from the group consisting of sequences SEQ ID NO: 7, SEQ ID NO: 9, SEQ ID NO: 10, SEQ ID NO: 11 and SEQ ID NO: 12, and is in particular the sequence SEQ ID NO: 7 or the sequence SEQ ID NO: 11, and more particularly the sequence SEQ ID NO: 11; and
- a DNA construct according to the invention can be characterized in that:
- the first or the second therapeutic protein of a DNA construct according to the invention is an anti-VEGF type protein, in particular of a protein having at least 85% sequence identity with the sequence SEQ ID NO: 3, this protein being more particularly G Aflibercept.
- a DNA construct according to the invention can be characterized in that the first nucleotide sequence or the second nucleotide sequence encodes:
- one of the sequences encoding the first and second therapeutic proteins of a DNA construct according to the invention can in particular be a nucleotide sequence encoding a protein of anti-VEGF type, such as S-Fltl, F Aflibercept, conbercept, brolucizumab, and in particular a sequence encoding F Aflibercept, more particularly a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 1, and is in particular the sequence SEQ ID NO: 2.
- a DNA construct according to the invention can be characterized in that the first nucleotide sequence or the second nucleotide sequence comprises:
- nucleotide sequence encoding F Aflibercept and in particular a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 1, and is in particular the sequence SEQ ID NO: 2;
- the first and second therapeutic proteins of a DNA construct according to the invention are respectively:
- a protein having anti-fibrotic properties in particular a protein having at least 85% sequence identity with the sequence SEQ ID NO: 8, this protein being more particularly decorin;
- an anti-VEGF-type protein in particular a protein having at least 85% sequence identity with the sequence SEQ ID NO: 3, this protein being more particularly F Aflibercept.
- sequences encoding the first and second therapeutic proteins of a DNA construct according to the invention are respectively:
- nucleotide sequence encoding a protein having anti-fibrotic properties such as the BMP7 protein (Bone Morphogenic Protein 7), an anti TGF-beta type protein, an anti FGF2 type protein, an anti CTGF type protein ( connective tissue growth factor), and in particular of a protein encoding decorin, more particularly a nucleotide sequence having at least 70% sequence identity with the sequence SEQ ID NO: 6, more particularly a sequence chosen from the group consisting of the sequences SEQ ID NO: 7, SEQ ID NO: 9, SEQ ID NO: 10, SEQ ID NO: 11 and SEQ ID NO: 12, and is in particular the sequence SEQ ID NO: 7 or the sequence SEQ ID NO: 11; and
- nucleotide sequence encoding an anti-VEGF-type protein such as S-Fltl, FAflibercept, conbercept, brolucizumab, and in particular a sequence encoding Aflibercept, more particularly a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 1, in particular the sequence SEQ ID NO: 2.
- the presence of the anti-fibrotic active agent advantageously makes it possible to potentiate the effects of anti-VEGF, thus improving the effectiveness of this compound in the treatment of the targeted ocular pathologies.
- anti-VEGF over time (Daniel et al. 2014, Ophthalmology 121, 656-666).
- subretinal fibrosis has been identified as a cause of poor therapeutic response to anti-VEGF in AMD patients who do not respond to anti-VEGF (Cohen et al. 2012, Retina 32, 1480-1485).
- a DNA construct according to the invention can be characterized in that:
- the first nucleotide sequence comprises:
- nucleotide sequence encoding Aflibercept and in particular a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 1, and is in particular the sequence SEQ ID NO: 2;
- nucleotide sequence SEQ ID NO: 5 encoding a signal peptide; and (f) the second nucleotide sequence comprises:
- nucleotide sequence encoding decorin more particularly a nucleotide sequence having at least 70% sequence identity with the sequence SEQ ID NO: 6, more particularly a sequence chosen from the group consisting of sequences SEQ ID NO: 7, SEQ ID NO: 9, SEQ ID NO: 10, SEQ ID NO: 11 and SEQ ID NO: 12, and is in particular the sequence SEQ ID NO: 7 or the sequence SEQ ID NO: 11; and
- a DNA construct according to the invention can be characterized in that:
- the first nucleotide sequence comprises: a nucleotide sequence encoding G Aflibercept, and in particular a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 1, and is in particular the sequence SEQ ID NO: 2; and
- nucleotide sequence SEQ ID NO: 5 encoding a signal peptide; and (f) the second nucleotide sequence comprises:
- nucleotide sequence encoding decorin more particularly the sequence SEQ ID NO: 7;
- a DNA construct according to the invention can be characterized in that:
- the first nucleotide sequence comprises:
- nucleotide sequence encoding G Aflibercept and in particular a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 1, and is in particular the sequence SEQ ID NO: 2;
- nucleotide sequence SEQ ID NO: 5 encoding a signal peptide; and (f) the second nucleotide sequence comprises:
- nucleotide sequence encoding decorin more particularly the sequence SEQ ID NO: 11;
- a DNA construct according to the invention can be characterized in that:
- the first and second therapeutic proteins of a DNA construct according to the invention are respectively: - a protein of anti-TNF-alpha type, in particular a protein having at least 85% sequence identity with the sequence SEQ ID NO: 22, and more particularly the fusion protein comprising the extracellular domain of the human p55 receptor at TNF alpha coupled via a hinge to the constant fragment of human immunoglobulin IgG1 of sequence SEQ ID NO: 22;
- an anti-VEGF type protein in particular of a protein having at least 85% sequence identity with the sequence SEQ ID NO: 3, this protein being more particularly Aflibercept.
- sequences encoding the first and second therapeutic proteins of a DNA construct according to the invention are respectively:
- sequence encoding an anti-TNF-alpha type protein in particular a sequence encoding the fusion protein comprising the extracellular domain of the human p55 receptor for TNF alpha coupled via a hinge to the constant fragment of human immunoglobulin IgG1 from peptide sequence SEQ ID NO: 22, and in particular a nucleotide sequence having at least 85% sequence identity with the sequence SEQ ID NO: 21; and
- nucleotide sequence encoding an anti-VEGF-type protein such as S-Fltl, Aflibercept, conbercept, brolucizumab, and in particular a sequence encoding Aflibercept, more particularly a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 1, and is in particular the sequence SEQ ID NO: 2.
- VEGF vascular permeability
- inflammatory agents such as TNF-alpha
- TNF-alpha can also lead to vascular permeability, especially in patients who do not respond to anti-VEGF treatment such as this.
- VEGF and TNF-alpha induce permeability by separate mechanisms.
- a DNA construct according to the invention can be characterized in that:
- the first nucleotide sequence comprises:
- nucleotide sequence encoding an anti-TNF-alpha type protein in particular a sequence encoding the fusion protein comprising the extracellular domain of the human TNF alpha receptor p55 coupled via a hinge to the constant fragment of human immunoglobulin IgG1, of peptide sequence SEQ ID NO: 22, and in particular a nucleotide sequence having at least 85% sequence identity with the sequence SEQ ID NO : 21, and in particular the sequence SEQ ID NO: 21; and
- nucleotide sequence SEQ ID NO: 23 encoding a signal peptide; and (f) the second nucleotide sequence comprises:
- nucleotide sequence encoding Aflibercept and in particular a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 1, and is in particular the sequence SEQ ID NO: 2;
- a DNA construct according to the invention can be characterized in that:
- this protein being more particularly the fusion protein comprising the extracellular domain of the human receptor p55 for TNF alpha coupled via a hinge to the constant fragment human IgG1 immunoglobulin of sequence SEQ ID NO: 22;
- the first and second therapeutic proteins of a DNA construct according to the invention are respectively:
- a protein regulating the activation of complement in particular of a protein having at least 85% sequence identity with the sequence SEQ ID NO: 26, this protein being more particularly factor H of complement;
- sequences encoding the first and second therapeutic proteins of a DNA construct according to the invention are respectively:
- CFI complement factor I
- H complement factor H
- SEQ ID NO: 25 a nucleotide sequence encoding a protein regulating complement activation, such as complement factor I (CFI), and complement factor H, and in particular a sequence encoding complement factor H, more particularly a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 25; and
- nucleotide sequence encoding an anti-VEGF-type protein such as S-Fltl, Aflibercept, conbercept, brolucizumab, and in particular a sequence encoding F Aflibercept, more particularly a sequence having at least less 75% sequence identity with the sequence SEQ ID NO: 1, and is in particular the sequence SEQ ID NO: 2.
- Activation of the alternate complement pathway is an important component of AMD. This activation leads to the formation of the membrane attack complex, the recruitment of macrophages, and the induction of inflammation with the production of cytokines involved in the inflammasome.
- Complement factor H acts to regulate the self-activation of complement.
- inhibition of the alternate pathway by intraocular injection of CFH reduces neovascularization in animal models of choroidal neovascularization.
- an active regulating the activation of complement and of an anti-VEGF, such as F aflibercept advantageously makes it possible to reduce both the neovascularization and the inflammation associated with AMD.
- a DNA construct according to the invention can be characterized in that:
- the first nucleotide sequence comprises:
- CFI complement factor I
- H complement factor H
- SEQ ID NO: 25 a nucleotide sequence encoding a protein regulating complement activation, such as complement factor I (CFI), and complement factor H, and in particular a sequence encoding complement factor H, more particularly a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 25; and
- nucleotide sequence SEQ ID NO: 28 encoding a signal peptide; and (f) the second nucleotide sequence comprises:
- nucleotide sequence encoding F Aflibercept and in particular a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 1, and is in particular the sequence SEQ ID NO: 2; and - the nucleotide sequence SEQ ID NO: 5 encoding a signal peptide.
- a DNA construct according to the invention can be characterized in that:
- a protein regulating the activation of complement in particular of a protein having at least 85% sequence identity with the sequence SEQ ID NO: 26, this protein being more particularly factor H of complement;
- a DNA construct according to the invention is further characterized in that the first nucleotide sequence also encodes a signal peptide allowing the secretion of the first therapeutic protein.
- This signal peptide is well known to those skilled in the art.
- This signal peptide may for example be the human tissue plasminogen activator (tPA) of peptide sequence SEQ ID NO: 4 (and may for example be encoded by the nucleotide sequence SEQ ID NO: 5) or the signal peptide of HTLV-1 Env with peptide sequence SEQ ID NO: 29 (and may for example be encoded by the nucleotide sequence SEQ ID NO: 30).
- tPA human tissue plasminogen activator
- the signal peptide of an anti-TNF-alpha type protein in particular the native fusion protein signal peptide comprising the extracellular domain of the human p55 receptor for TNF alpha coupled via a hinge to the constant fragment of human immunoglobulin IgG1, this signal peptide having a peptide sequence SEQ ID NO: 23 (and may for example be encoded by the nucleotide sequence SEQ ID NO: 24); Where - the native signal peptide of factor H, of peptide sequence SEQ ID NO: 27 (and which may for example be encoded by the nucleotide sequence SEQ ID NO: 28).
- this signal peptide is contiguous with the first therapeutic protein, that is to say that it is directly attached to the N-terminal of the first therapeutic protein, and thus, the sequence encoding the signal peptide is 5 'to the sequence encoding the first therapeutic protein.
- a DNA construct according to the invention is further characterized in that the second nucleotide sequence also encodes a signal peptide allowing the secretion of the second therapeutic protein.
- This signal peptide may for example be the human tissue plasminogen activator (tPA) of peptide sequence SEQ ID NO: 4 (and may for example be encoded by the nucleotide sequence SEQ ID NO: 5) or the signal peptide of HTLV-1 Env with peptide sequence SEQ ID NO: 29 (and may for example be encoded by the nucleotide sequence SEQ ID NO: 30). It can also be the native signal peptide of the therapeutic protein in question, such as for example:
- the signal peptide of an anti-TNF-alpha type protein in particular the native fusion protein signal peptide comprising the extracellular domain of the human p55 receptor for TNF alpha coupled via a hinge to the constant fragment of human immunoglobulin IgG1, this signal peptide having a peptide sequence SEQ ID NO: 23 (and may for example be encoded by the nucleotide sequence SEQ ID NO: 24);
- This signal peptide can be identical or different from the signal peptide encoded by the first nucleotide sequence, and is preferably different from the signal peptide encoded by the first nucleotide sequence. As previously indicated, this signal peptide is contiguous with the second therapeutic protein, that is to say that it is directly attached to the N-terminal of the second therapeutic protein, and thus, the sequence encoding the signal peptide is 5 'to the sequence encoding the second therapeutic protein.
- the signal peptide encoded by the first nucleotide sequence and the signal peptide encoded by the second nucleotide sequence are, independently of one another, chosen from the group consisting of peptide sequences SEQ ID NO: 4 ; SEQ ID NO: 13, SEQ ID NO: 18, SEQ ID NO: 23, SEQ ID NO: 27 and SEQ ID NO: 29.
- sequence encoding the signal peptide encoded by the first nucleotide sequence and the sequence encoding the signal peptide encoded by the second nucleotide sequence are, independently of one another, chosen from the group consisting of nucleotide sequences SEQ ID NO: 5; SEQ ID NO: 14; SEQ ID NO: 19, SEQ ID NO: 20; SEQ ID NO: 24, SEQ ID NO: 28 and SEQ ID NO: 30.
- a DNA construct according to the invention is moreover also characterized in that it comprises (d) a promoter allowing the expression of the first therapeutic protein of a construct according to the invention as well as (g) a promoter allowing the expression of the second therapeutic protein of a construct according to the invention.
- These promoters can be the same or different. According to a particular embodiment, these two promoters are different from each other.
- Such promoters can for example be promoters of the CAG or CMV type.
- a DNA construct according to the invention is further characterized in that it comprises (e) a 3 'polyadenylation sequence of the first nucleotide sequence and (h) a 3' polyadenylation sequence of the second nucleotide sequence .
- a polyadenylation sequence contains in particular a conserved motif of AATAAA sequence well known to those skilled in the art.
- These two polyadenylation sequences can be the same or different from each other. According to one embodiment, they are different from each other.
- polyadenylation sequences can for example be polyadenylation sequences of the RBG (Rabbit Beta Globin) or BGH (Bovine Growth Hormone) type.
- the DNA construct according to the invention is circular in shape.
- the DNA construct is a naked DNA construct.
- the DNA construct according to the invention is a naked DNA construct of circular shape.
- the DNA construct according to the invention is a naked DNA construct of circular shape in which the sequences encoding the first and second therapeutic proteins of a DNA construct according to invention are respectively:
- nucleotide sequence encoding transferrin and in particular a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 15, and is in particular the sequence SEQ ID NO: 16;
- the DNA construct according to The invention is a naked DNA construct of circular shape in which the sequences encoding the first and second therapeutic proteins of a DNA construct according to the invention are respectively:
- nucleotide sequence encoding a protein having anti-fibrotic properties such as the BMP7 protein (Bone Morphogenic Protein 7), an anti TGF-beta type protein, an anti FGF2 type protein, an anti CTGF type protein ( connective tissue growth factor), and in particular of a protein encoding decorin, more particularly of a nucleotide sequence having at least 70% sequence identity with the sequence SEQ ID NO: 6, more particularly of a sequence chosen from the group consisting of the sequences SEQ ID NO: 7, SEQ ID NO: 9, SEQ ID NO: 10, SEQ ID NO: 11 and SEQ ID NO: 12, and is in particular the sequence SEQ ID NO: 7 or the sequence SEQ ID NO: 11, and more particularly the sequence SEQ ID NO: 11; and
- nucleotide sequence encoding an anti-VEGF-type protein such as S-Fltl, FAflibercept, conbercept, brolucizumab, and in particular a sequence encoding Aflibercept, more particularly a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 1, and is in particular the sequence SEQ ID NO: 2.
- the DNA construct according to the invention is a naked DNA construct of circular shape in which the sequences encoding the first and second therapeutic proteins of a DNA construct according to the invention are respectively :
- nucleotide sequence encoding transferrin and in particular a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 15, and is in particular the sequence SEQ ID NO: 16;
- nucleotide sequence encoding a protein having anti-fibrotic properties such as the BMP7 protein (Bone Morphogenic Protein 7), an anti TGF-beta type protein, an anti FGF2 type protein, an anti CTGF type protein ( connective tissue growth factor), and in particular of a protein encoding decorin, more particularly of a nucleotide sequence having at least 70% sequence identity with the sequence SEQ ID NO: 6, more particularly of a sequence chosen from the group consisting of the sequences SEQ ID NO: 7, SEQ ID NO: 9, SEQ ID NO: 10, SEQ ID NO: 11 and SEQ ID NO: 12, and is in particular the sequence SEQ ID NO: 7 or the sequence SEQ ID NO: 11, and more particularly the sequence SEQ ID NO: 11.
- the DNA construct according to the invention is a naked DNA construct of circular shape in which the sequences encoding the first and second therapeutic proteins of a DNA construct according to l invention are respectively:
- - a sequence encoding an anti-TNF-alpha type protein in particular a sequence encoding the fusion protein comprising the extracellular domain of the human p55 receptor for TNF alpha coupled via a hinge to the constant fragment of human immunoglobulin IgG1 from protein sequence SEQ ID NO: 22, and in particular a nucleotide sequence having at least 85% sequence identity with the sequence SEQ ID NO: 21; and - a nucleotide sequence encoding an anti-VEGF-type protein, such as S-Fltl, FAflibercept, conbercept, brolucizumab, and in particular a sequence encoding Aflibercept, more particularly a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 1, and is in particular the sequence SEQ ID NO: 2.
- the DNA construct according to the invention is a naked DNA construct of circular shape in which the sequences encoding the first and second therapeutic proteins of a DNA construct according to l invention are respectively:
- CFI complement factor I
- H complement factor H
- SEQ ID NO: 25 a nucleotide sequence encoding a protein regulating complement activation, such as complement factor I (CFI), and complement factor H, and in particular a sequence encoding complement factor H, more particularly a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 25; and
- nucleotide sequence encoding an anti-VEGF-type protein such as S-Fltl, Aflibercept, conbercept, brolucizumab, and in particular a sequence encoding Aflibercept, more particularly a sequence having at least 75% sequence identity with the sequence SEQ ID NO: 1, and is in particular the sequence SEQ ID NO: 2.
- this signal peptide being contiguous with the sequence of the first therapeutic protein, at the N-terminal of said first therapeutic protein,
- a DNA construct as defined above is especially dedicated to the treatment of ocular pathologies.
- An ocular pathology according to the present invention is retinal degeneration.
- This retial degeneration can in particular be chosen from the group consisting of age-related macular degeneration (AMD), wet or dry; diabetic retinopathies (DR); retinal venous occlusion, in particular central retinal vein occlusion (CRVO) or branch retinal vein occlusion (OBVR); myopic choroidal neovascularization (CNV); uveitis, especially non-infectious uveitis; retinitis pigmentosa and glaucoma.
- AMD age-related macular degeneration
- DR diabetic retinopathies
- CRVO central retinal vein occlusion
- OBVR branch retinal vein occlusion
- CNV myopic choroidal neovascularization
- uveitis especially non-infectious uveitis
- retinitis pigmentosa and glaucoma glaucoma.
- diabetic retinopathy it is intended in particular to denote a reduction in visual acuity due to diabetic macular edema (DME), intravitreal hemorrhage, retinal detachment, or neovascular glaucoma.
- DME diabetic macular edema
- said pathology ocular is a retinal degeneration which can more particularly be chosen from the group consisting of age-related macular degeneration (AMD), in particular the wet form; diabetic retinopathies (DR); retinal venous occlusion, especially occlusion of the central retinal vein (OVCR) or branch retinal vein occlusion (OBVR); and myopic choroidal neovascularization (CNV); and more particularly be chosen from the group consisting of age-related macular degeneration (AMD), in particular the neovascular (wet) form of AMD; reduced visual acuity due to diabetic macular edema (DME); retinal venous occlusion, especially central retinal vein occlusion (CRVO) or branch retinal vein occlusion (OBVR); and myopic
- AMD age-related macular degeneration
- DME diabetic macular edema
- DME diabetic macular edema
- CRVO central retinal vein occlusion
- diabetic retinopathy By way of diabetic retinopathy, it is intended in particular to denote a decrease in visual acuity due to diabetic macular edema (DME) and the formation of new vessels observed in the proliferating form of diabetic retinopathy.
- DME diabetic macular edema
- a DNA construct according to the invention is injected into an eye muscle, the ciliary muscle, where it is subjected to an electrotransfer.
- the known technique of non-viral gene therapy used in the present invention is the injection of the DNA construct into an ocular muscle and then G electrotransfer to induce transient permeabilization of ciliary muscle cells and DNA migration to optimize the transfection of the DNA construct.
- This DNA electrotransfer technique also called electroporation or electroporation
- G DNA electrotransfer does not induce an immune response and allows long-term expression of the genes thus introduced.
- the injection of a DNA construct is made into the ciliary muscle because the latter is capable of producing proteins in a homogeneous and constant manner and, due to its position, promotes the diffusion of these proteins in the entire ocular sphere (Bloquel et al. “Plasmid electrotransfer of eye ciliary muscle: principles and therapeutic efficacy using hTNF-alpha soluble receptor in uveitis”, FASEB J. 2006 Feb; 20 (2): 389-91). Smooth muscle cells have a low turnover rate and are well distributed on both sides of the lens.
- the quantity of protein to be produced is proportional to the surface of the transfected muscle (Touchard “The ciliary smooth muscle electrotransfer: basic principles and potetial for sustained intraocular production of therapeutic proteins ”, J Gene Med. 2010 Nov; 12 (ll): 904-19).
- the production of the proteins of interest according to the present invention, and in particular of therapeutic proteins as described above will be homogeneous and constant throughout the ocular sphere and will be limited to this ocular sphere.
- the electrotransfer method described in patent application EP2266656 which deals with a method of injecting a composition which may contain DNA at the level of the tissues of the ciliary body and / or of the tissues. extraocular muscles.
- the ciliary muscle is part of the ciliary body, near the limbus and just behind the sclera.
- the injection of a DNA construct according to the invention into it is therefore very minimally invasive unlike subretinal injections and therefore advantageously constitutes the site of injection of the DNA construct according to the invention.
- the present invention also relates to the use of a DNA construct for treating an ocular pathology, said DNA construct being intended for the non-viral transfer of nucleic acids into the muscle cells of the ocular sphere of the eye. a patient suffering from said ocular pathology; said DNA construct being characterized in that it comprises:
- this signal peptide being contiguous with the sequence of the first therapeutic protein, at the N-terminal of said first therapeutic protein,
- the present invention also relates to a method of treating an ocular pathology, comprising the administration of a DNA construct to a patient by injection into a ciliary muscle and then electrotransfer into the cells of the ciliary muscle, said DNA construct being intended for the non-viral transfer of nucleic acids into the muscle cells of the ocular sphere of a patient suffering from said ocular pathology; said DNA construct being characterized in that it comprises:
- this signal peptide being contiguous with the sequence of the first therapeutic protein, at the N-terminal of said first therapeutic protein,
- the inventors have demonstrated the expression of two therapeutic proteins encoded in a DNA construct according to the invention (plasmid) in the vitreous of the eye of rats after electrotransfer of this DNA construct into the ciliary muscle.
- Plasmid A comprising:
- sequence SEQ ID NO: 16 encoding human transferrin of sequence SEQ ID NO: 17 (the sequence encoding its signal peptide being the sequence SEQ ID NO: 20);
- sequence SEQ ID NO: 21 encoding a fusion protein comprising the extracellular domain of the human receptor p55 for TNF alpha coupled via a hinge to the constant fragment of human immunoglobulin IgG1 (hTNFR-Is / hlgGl) of sequence SEQ ID NO: 22 (the sequence encoding its signal peptide being the sequence SEQ ID NO: 24);
- FIG. 1 A so-called simple comparative construction, in that it codes only for one of the proteins of interest mentioned above, ie the sequence SEQ ID NO: 16 encoding human transferrin of sequence SEQ ID NO: 17, was also prepared according to a similar method, with a plasmid backbone similar to the plasmid construction A, the only sequence encoding a protein of interest also being under the control a promoter of the CMV type.
- This comparative plasmid (called Plasmid a ') is shown in Figure 2.
- 7-week-old Long Evans rats are used according to the provisions of the ARVO protocol (for Association for Research in Vision and Ophthalmology).
- the rats are anesthetized by intramuscular injection of a dose of ketamine (40 mg / kg) and xylazine (4 mg / kg) before bilateral injection of the plasmid (30 pg / eye) and electrotransfer on day 0 (D0).
- 6 rats are used for each of the analysis times (D3, D7, D14, D21, and D30).
- the rats are euthanized by administration of a lethal dose of pentobarbital (400 mg / kg) then the animals are enucleated and the eye fluids (vitreous humor and aqueous humor) are taken and stored at -80 ° C until analysis.
- pentobarbital 400 mg / kg
- eye fluids vitreous humor and aqueous humor
- Rat ciliary muscle electrotransfer The electrotransfer is carried out as described in Bloquel et al. “Plasmid electrotransfer of eye ciliary muscle: principles and therapeutic efficacy using hTNF-alpha soluble receptor in uveitis” (FASEB J 2006; 20: 389-391) by modifying the injection route by a transscleral approach (Touchard “The ciliary smooth muscle electrotransfer: basic principles and potetial for sustained intraocular production of therapeutic proteins ”, J Gene Med. 2010 Nov; 12 (ll): 904-19).
- the plasmids are injected at a rate of 30 ⁇ g in 10 ⁇ l of Tris-EDTANaCl solution, into the ciliary muscle of the animals using a suitable syringe.
- the electrical pulses are administered using a specific iridium / platinum electrode 250 ⁇ m in diameter.
- This internal electrode is introduced into the existing transscleral tunnel.
- the outer electrode is a sheet of stainless steel curved to conform to the shape of the eye and placed at the limbus facing the inner electrode.
- the electrotransfer is carried out at the rate of 8 unipolar square electrical pulses (200V / cm, 10 ms, 5 Hz) generated by an electroporator similar to that described in Touchard et al (J Gene Med. 2010 Nov; l 2 (11): 904-19).
- Eye fluid samples are taken 3 days (D + 3), 7 days (D + 7), 14 days (D + 14), 21 days (D + 21) and 30 days (D + 30) after the injection of plasmid followed by electrotransfer (D0).
- an ELISA measurement is carried out in order to measure the quantity of human transferrin and / or of the anti-TNF-alpha fusion protein of sequence SEQ ID NO: 22 present in the samples.
- Figure 4 which represents the concentration of anti-TNF-alpha fusion protein (in pg / mL) of sequence SEQ ID NO: 22 produced in the ocular fluids taken from D + 3 to D + 30.
- Example 1 The inventors confirmed the observations made in Example 1 in a second experimental protocol using a plasmid according to the invention different from that used in Example 1.
- Plasmid B A DNA construct according to the invention, called plasmid B, comprising:
- sequence SEQ ID NO: 7 encoding the Decorin of sequence SEQ ID NO: 8;
- sequence SEQ ID NO: 2 encoding G Aflibercept of sequence SEQ ID NO: 3;
- the animals used in this protocol are as described in Example 1. 6 rats are used for each of the analysis times (D3, D7, D14 and D21).
- the rats are euthanized by administration of a lethal dose of pentobarbital (400 mg / kg) then the animals are enucleated and the eye fluids (vitreous humor and aqueous humor) are taken and stored at -80 ° C until analysis.
- the electrotransfer is carried out as described in Example 1.
- Eye fluid samples are taken 3 days (D + 3), 7 days (D + 7), 14 days (D + 14) and 21 days (D + 21) after the injection of plasmid followed by G electrotransfer (D0 ). For each of these samples, an ELISA measurement is performed to measure the amount of decorin and / or Aflibercept present in the samples.
- Example 1 Furthermore, as had previously been shown in Example 1, they also illustrate, and quite unexpectedly, the ability of a construct according to the invention to produce proteins in a more stable manner over time than it encodes compared to constructs encoding only one of these proteins (Fig. 7).
- Plasmid C comprising:
- Brown Norway rats aged 7 to 8 weeks are used according to the provisions of the ARVO protocol (for Association for Research in Vision and Ophthalmology). Rats are anesthetized by intramuscular injection of a dose of ketamine (40 mg / kg) and xylazine (4 mg / kg) before bilateral injection of the plasmid (30 pg / eye) or vehicle (10 pL) and daily electrotransfer. 0 (J0). 6 rats are used for each of the treatments. The electrotransfer is performed as described in Example 1.
- choroidal neovascularization is induced in all animals by laser photocoagulation in several places of the retina (4 to 5 laser impacts per eye).
- the vascular leakage of the neo-vessels is evaluated by fluorescent angiography and attribution of a score according to the severity of the vascular leak according to the following table.
- SEQ ID NO: 1 Nucleotide sequence encoding Aflibercept agtgatacaggtagacctttcgtagagatgtacagtgaaatccccgaaattatacacatgactgaaggaagggagctcgtcattccctgc cgggttacgtcacctaacatcactgttactttaaaaaagtttccacttgacactttgatccctgatggaaaacgcataatctgggacagtag aaagggcttcatcatatcaaatgcaacgtacaaagaaatagggcttctgacctgtgaagcaacagtcaatgggcatttgtataagacaaa ctatctcacacatcgacaaaccaatacaatcatagatgtcgttctgagtctcattcatcg
- SEQ ID NO: 2 Nucleotide sequence encoding Aflibercept cagcgacaccggcagacccttcgtggaaatgtacagcgagatccccgagatcatccacatgaccgagggccgcgagctggtgatcc cttgcagagtgaccagccccaacatcaccgtgacactgaagaagttcccctctggacacactgatccccgacggcaagaggatcatctg ggacagcagaaagggcttcatcatcagcaacgccacatacaaagagatcggactgctgacatgcgaggccaccgtgaacggccatc tgtacaagaccaactatctgacccaccgccagaccaacaccatcatcgacgtggtgctgagccccagccacggcatcgagctgag
- SEQ ID NO: 3 peptide sequence of TAflibercept
- SEQ ID NO: 4 peptide sequence of the TPA signal peptide MDAMKRGLCCVLLLCGAVFVSPS
- SEQ ID NO: 5 nucleotide sequence encoding the TPA signal peptide atggatgcaatgaagagagggctctgctgtgtgctgctgctgtgtggagcagtcttcgtttcgcccag
- SEQ ID NO: 6 Nucleotide sequence coding for Decorin ggaccgtttcaacagagaggcttatttgactttatgctagaagatgaggcttctgggataggcccagaagttcctgatgaccgcgacttc gagccctcctaggcccagtgtgccccttccgctgtcaatgccatcttcgagtggtccagtgttctgatttgggtctggacaaagtgccaa aggatcttcccctgacacaactctgctagacctgcaaaacaacaaataaccgaaatcaaagatggagactttaagaacctgaagaa ccttcacgcattgattcttgtcaacaataaaattagcaaagttagtctggagcatttcttgtca
- SEQ ID NO: 8 Peptide sequence of Decorin
- SEQ ID NO: 9 Nucleotide sequence coding for Decorin ggaccgtttcaacagagaggcttatttgactttatgctagaagatgaggcctctggaatcggacctgaggtgcccgacgacagagactt cgaaccttctctgggccctgtgtgccccttcagatgccagtgtcatctgagagtggtgcagtgcgacctgggccttgataaggtgc ccaaggacctgcctctgacaccacactgctggacctgcagaacaacaagatcaccgagatcaaggacggcgacttcaagaacctg aagaatctgcacgcctgatctggtcaacaacaaatcaccgagatcaaggacggcgacttcaagaacctg aagaatctgcac
- SEQ ID NO: 10 Nucleotide sequence coding for Decorin ggaccgtttcaacagagaggcttatttgactttatgctagaagacgaggctagcggaattggacctgaagtgcccgacgaccgcgatttt gaaccatcactgggacctgtctgcccctttagatgtcagtgccacctgagggtggtgcagtgttctgacctgggcctggataaggtgcc aaaggacctgcccctgataccacactgctggacctgcagaacaataagatcaccgagatcaaggacggcgatttcaagaatctgaa gaacctgcacgcctgatcctggtgaacaataagatctctaaggtgaggtgcccaggcgctttaccccctga
- SEQ ID NO: 11 Nucleotide sequence coding for Decorin ggaccgtttcaacagagaggcttatttgactttatgctagaagacgaggccagcggcatcggccccgaggtgcccgacgaccgcgac ttcgagcccagcctgggcccccgtgtgccccttccgctgccagtgccacctgcgcgtggtgcagtgcgacctgggcctggacaag gtgcccaaggacctgccccccgacaccaccctgctggacctgcagaacaacaagatcaccgagatcaaggacggcgacttcaaga acctgaagaacctgcacgccctgatcctggtgaacaacaagatcagaggtgagccccggcggg
- SEQ ID NO: 13 Peptide sequence of the native signal peptide of Decorin MK ATIILLLL AQ V SW A
- SEQ ID NO: 14 Nucleotide sequence encoding the native signal peptide of Decorin atgaaggccactatcatcctccttctgcttgcacaagtttcctgggct
- SEQ ID NO: 15 Nucleotide sequence encoding transferrin gtccctgataaaactgtgagatggtgtgcagtgtcggagcatgaggccactaagtgccagagtttccgcgaccatatgaaaagcgtcat tccatccgatggtcccagtgttgcttgtgtgaagaaagcctcctaccttgattgcatcagggccattgcggcaaacgaagcggatgctgt gacactggatgcaggtttggtgtgtgtgtgt gacactggatgcaggtttggtgtgtatgatgcttacctggctcccaataacctgaagcctgtggtggcagagttctatgggtcaaaagagga tccacagactttctattatgc
- SEQ ID NO: 16 Nucleotide sequence encoding transferrin gtgccagataagacagttcgttggtgcgccgtgtctgagcacgaggccacaaagtgccagagcttccgggaccacatgaagtctgtg atccctagcgacggcccttccgtggcttgtgtgaagaaggccagctatctggactgcatcagagccattgccgccaacgacgacgagccgatg ccgttacactggatgccggactggtgtacgatgcctatctggccccaaacaatctgaagcccgtggtcgcgagttctacggctctaaa gaggaccctcagacattctactacgccgtggtcaagaaggacaca
- SEQ ID NO: 17 Peptide sequence of human transferrin
- SEQ ID NO: 18 Peptide sequence of the native signal peptide of human transferrin MRL AV GALL V C AVLGLCL A
- SEQ ID NO: 19 Nucleotide sequence encoding the native signal peptide of Transferrin atgaggctcgccgtgggagccctgctggtctgcgccgtcctggggctgtgtctggcttggctgtgtctggct
- SEQ ID NO: 20 Nucleotide sequence encoding the signal peptide of Transferrin atgagactggctgtgggagcactgcttgtgtgtgctgttctgggactgtgtctggcc
- SEQ ID NO: 21 nucleotide sequence encoding a fusion protein comprising the extracellular domain of the human p55 receptor for TNF alpha coupled via a hinge to the constant fragment of G human immunoglobulin IgG1 (Peppel et al., J Exp Med, 174: 1483 - 1489 - Murphy et al, Arch Ophthalmol, 22: 845-851) actggtccctcacctaggggacagggagaagagagatagtgtgtgtccccaaggaaatatatccaccctcaaaataattcgatttgct gtaccaagtgccacaaaggaacctacttgtacaatgactgtccaggcccggggcaggatacggactgcagggagtgtgagagcggcttcaccgcttcagaaaaccacctcagacactgcctcagctccaaaaccacctcactgca
- SEQ ID NO: 22 peptide sequence of the fusion protein comprising the extracellular domain of the human p55 receptor for TNF alpha coupled via a hinge to the constant fragment of G human immunoglobulin IgG1 (Peppel et al., J Exp Med, 174: 1483- 1489 - Murphy et al., Arch Ophthalmol, 22: 845-851)
- SEQ ID NO: 23 Peptide sequence of the native signal peptide of the protein of sequence SEQ ID NO: 22
- SEQ ID NO: 24 Nucleotide sequence encoding the signal peptide of sequence SEQ ID NO: 23 atgggcctctccaccgtgcctgacctgctgctgccgctggtgctcctggagctgttggtgggaatatacccctcaggggttattgg
- SEQ ID NO: 25 nucleotide sequence coding for the complement factor H gaagattgcaatgaacttcctccaagaagaaatacagaaattctgacaggttcctggtctgaccaaacatatccagaaggcacccaggc tatctataaatgccgcctggatatagatctcttggaaatataataatggtatgcaggaagggagaatgggttgctcttaatccattaagga aatgtcagaaaaggccctgtggacat
- SEQ ID NO: 26 peptide sequence of complement factor H
- VKCLP VT APEN GKI V S S AMEPDREYHF GQ A VRF VCN S GYKIEGDEE
- SEQ ID NO: 27 Peptide sequence of the native signal peptide of factor H MRLL AKIICLML W AIC VA
- SEQ ID NO: 28 Nucleotide sequence encoding the native signal peptide of factor H atgagacttctagcaaagattatttgccttatgttatgggctatttgtgtagca
- SEQ ID NO: 29 peptide sequence of the signal peptide of HTLV-1 Env MGKFL ATLILFF QF CPLIF G
- SEQ ID NO: 30 nucleotide sequence encoding the signal peptide of HTLV-1 Env atgggtaagtttctcgccactttgattttattcttccagttctgcccctcatcttcggt
- SEQ ID NO: 31 replication origin sequence gamma R6K plasmid E. coli gatcagcagttcaacctgttgatagtatgtactaagctctcatgtttaatgtactaagctctcatgtttaatgaactaaaccctcatggctaatg tactaagctctcatggctaatgtactaagctctcatgttttcacgtactaagctctcatgttttgaacaataaattaatataaatcagcaacttaa atagcctctaaggttttaagttttataagaaaaaaaagaatatataaggctttttaaaggttttaatggttgtggacaacaagcccctaaggttttataagaaaaaaaaagaatatataaggctttt
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IL299487A IL299487A (en) | 2020-06-30 | 2021-06-30 | DNA structure for the treatment of eye diseases |
| EP21737667.2A EP4171636A1 (fr) | 2020-06-30 | 2021-06-30 | Construction d'adn pour le traitement de pathologies oculaires |
| CN202180047366.2A CN115768486A (zh) | 2020-06-30 | 2021-06-30 | 用于治疗眼部病变的dna构建体 |
| US18/003,585 US20240189448A1 (en) | 2020-06-30 | 2021-06-30 | Dna structure for treating ocular pathologies |
| JP2022580806A JP7766054B2 (ja) | 2020-06-30 | 2021-06-30 | 眼病態の処置のためのdna構造 |
| CA3182197A CA3182197A1 (fr) | 2020-06-30 | 2021-06-30 | Construction d'adn pour le traitement de pathologies oculaires |
| KR1020237002892A KR20230028509A (ko) | 2020-06-30 | 2021-06-30 | 안구 병리의 치료를 위한 dna 구조물 |
| AU2021298865A AU2021298865A1 (en) | 2020-06-30 | 2021-06-30 | DNA structure for treating ocular pathologies |
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| FR2006898A FR3111913A1 (fr) | 2020-06-30 | 2020-06-30 | Construction d’adn pour le traitement de pathologies oculaires |
| FRFR2006898 | 2020-06-30 |
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| EP (1) | EP4171636A1 (fr) |
| JP (1) | JP7766054B2 (fr) |
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| CN (1) | CN115768486A (fr) |
| AU (1) | AU2021298865A1 (fr) |
| CA (1) | CA3182197A1 (fr) |
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| MX2011012691A (es) * | 2009-05-28 | 2012-04-19 | Glaxo Group Ltd | Combinacion de un antagonista de tnf-alfa y un antagonista de vegf para utilizarse en el tratamiento o en la prevencion de enfermedades de los ojos. |
| CN104195173B (zh) | 2014-09-02 | 2017-03-08 | 北京比洋生物技术有限公司 | 具有双表达盒的谷氨酰胺合成酶高效表达载体 |
| IL279919B2 (en) | 2016-06-16 | 2025-01-01 | Adverum Biotechnologies Inc | Treating AMD using an AAV2 variant with aflibercept |
| WO2019229116A1 (fr) * | 2018-05-31 | 2019-12-05 | INSERM (Institut National de la Santé et de la Recherche Médicale) | Administration intravitréenne d'un polypeptide de décorine pour le traitement de la néovascularisation choroïdienne |
-
2020
- 2020-06-30 FR FR2006898A patent/FR3111913A1/fr not_active Ceased
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2021
- 2021-06-30 IL IL299487A patent/IL299487A/en unknown
- 2021-06-30 CA CA3182197A patent/CA3182197A1/fr active Pending
- 2021-06-30 CN CN202180047366.2A patent/CN115768486A/zh active Pending
- 2021-06-30 KR KR1020237002892A patent/KR20230028509A/ko active Pending
- 2021-06-30 US US18/003,585 patent/US20240189448A1/en active Pending
- 2021-06-30 WO PCT/EP2021/068085 patent/WO2022003063A1/fr not_active Ceased
- 2021-06-30 AU AU2021298865A patent/AU2021298865A1/en active Pending
- 2021-06-30 JP JP2022580806A patent/JP7766054B2/ja active Active
- 2021-06-30 EP EP21737667.2A patent/EP4171636A1/fr active Pending
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| WO2018175932A1 (fr) * | 2017-03-23 | 2018-09-27 | DNARx | Systèmes et méthodes pour l'expression d'acides nucléiques in vivo |
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| WO2019057774A1 (fr) * | 2017-09-19 | 2019-03-28 | Deutsches Krebsforschungszentrum | Vecteurs d'adn non intégrants pour la modification génétique de cellules |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20230028509A (ko) | 2023-02-28 |
| CN115768486A (zh) | 2023-03-07 |
| FR3111913A1 (fr) | 2021-12-31 |
| JP2023531289A (ja) | 2023-07-21 |
| CA3182197A1 (fr) | 2022-01-06 |
| IL299487A (en) | 2023-02-01 |
| EP4171636A1 (fr) | 2023-05-03 |
| US20240189448A1 (en) | 2024-06-13 |
| JP7766054B2 (ja) | 2025-11-07 |
| AU2021298865A1 (en) | 2023-02-02 |
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