WO2004052910A1 - Collagene de type ii de poulet codant un polynucleotide entier, utilisation de ce dernier - Google Patents
Collagene de type ii de poulet codant un polynucleotide entier, utilisation de ce dernier Download PDFInfo
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- WO2004052910A1 WO2004052910A1 PCT/CN2003/000967 CN0300967W WO2004052910A1 WO 2004052910 A1 WO2004052910 A1 WO 2004052910A1 CN 0300967 W CN0300967 W CN 0300967W WO 2004052910 A1 WO2004052910 A1 WO 2004052910A1
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- C07H21/04—Compounds containing two or more mononucleotide units having separate phosphate or polyphosphate groups linked by saccharide radicals of nucleoside groups, e.g. nucleic acids with deoxyribosyl as saccharide radical
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P19/00—Drugs for skeletal disorders
- A61P19/02—Drugs for skeletal disorders for joint disorders, e.g. arthritis, arthrosis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P19/00—Drugs for skeletal disorders
- A61P19/04—Drugs for skeletal disorders for non-specific disorders of the connective tissue
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/46—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates
- C07K14/465—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from birds
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
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- A—HUMAN NECESSITIES
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Definitions
- the present invention relates to a nucleic acid molecule comprising a polynucleotide sequence encoding a full-length chicken type II collagen as shown in SEQ ID NO: 1, or a fragment having the same biological function; and a chicken type II collagen encoded by the same protein.
- the invention also relates to a method for preparing the chicken type II collagen, and the use of the chicken type II collagen prepared by the method according to the invention for the preparation of a medicament for treating and / or preventing rheumatoid arthritis.
- the present invention particularly relates to a pharmaceutical composition for preventing and / or treating osteoarthritis, rheumatoid arthritis (RA), and a food or beverage composition or a food additive composition, which contains the ingredients prepared by the method of the present invention. Said chicken type II collagen.
- the invention also relates to the use of the nucleic acid molecule for gene therapy. Background of the invention
- Rheumatoid arthritis is a common and frequently-occurring disease that seriously affects human health. Because its etiology and its pathogenesis are not well understood so far, controlling inflammation, alleviating symptoms, and maintaining joint function are still the main means of current RA treatment. Far from reaching the goal of controlling joint damage. In recent years, with the development of molecular biology technology, great progress has been made in the research of RA, especially with the deepening of the understanding of its pathogenesis, new treatment methods and strategies have also emerged accordingly.
- the present inventors proposed a new idea to solve the above problems: that is, genetically engineering method for recombinant production of chicken type II collagen.
- the idea of cloning its coding gene, namely the CCOL2A1 gene, and achieving efficient expression, and the recombinant production of chicken type II collagen was proposed.
- the present invention is based on the inventors' first successful cloning of the full-length polynucleotide sequence-CCOL2A1 cDNA encoding chicken type II collagen. Summary of invention
- One aspect of the present invention relates to a nucleic acid molecule comprising a polynucleotide sequence encoding a full-length chicken type II collagen as shown in SEQ ID NO: 1, or a fragment thereof having the same biological function.
- Another aspect of the present invention relates to chicken type II collagen encoded by the nucleic acid molecule of the present invention, or a fragment thereof having the same biological activity.
- the present invention further relates to a recombinant expression vector containing a nucleic acid molecule encoding chicken type II collagen or a fragment having the same biological function according to the present invention.
- Another aspect of the present invention relates to a host transformed with the above-mentioned recombinant expression vector.
- Cells capable of expressing chicken type II collagen, or fragments having the same biological activity are capable of expressing chicken type II collagen, or fragments having the same biological activity.
- Another aspect of the present invention relates to a method for preparing the chicken type II collagen, including
- the invention also relates to the use of the chicken type II collagen according to the invention for the preparation of a medicament for treating and / or preventing rheumatoid arthritis.
- the present invention particularly relates to a pharmaceutical composition for preventing and / or treating osteoarthritis and rheumatoid arthritis, which comprises a therapeutically effective amount of chicken type II collagen prepared by the method of the present invention, and optionally , A pharmaceutically acceptable carrier.
- the present invention also includes a food or beverage composition, characterized in that it contains a certain amount of chicken type II collagen prepared by the method of the present invention.
- the present invention also includes a food additive composition containing a certain amount of chicken type II collagen prepared by the method of the present invention.
- the invention also includes the use of the nucleic acid molecule or a fragment thereof according to the invention for gene therapy. Detailed description of the invention
- Oral tolerance is one of the specific immunotherapeutics to treat autoimmune diseases that has emerged internationally since the 1990s. It is also one of the most active and productive areas in immunological research in recent years. It refers to the oral administration of a certain protein antigen, and then using the antigen for parenteral immunization, causing the body to have a systemic low immune response state to the antigen.
- the main mechanisms that mediate oral tolerance are now known to include self-cell suppression, clonal incompetence, clonal clearance, and bystander suppression, which are far from all of them.
- the determinants are the amount of antigen, the source of the species, the nature, the process of antigen presentation processing, and The genetic background and developmental level of the host.
- Oral tolerance has indeed opened up a promising new approach, new strategy and new therapy for the treatment of RA in the treatment of RA; 2).
- Oral tolerance Chicken type II collagen is indeed very effective for quite a few RA patients; 3).
- Chicken type II collagen is much better than type II collagen derived from other species because it is rich in chondroitin sulfate A And mucin (proteoglycans), and mucin has the highest content of glucosamine, which has a strong anti-inflammatory effect and cartilage repair; especially chicken type II collagen derived from the breastbone of 6-8 week old chicks The highest content; 4).
- chicken type II collagen also contains anti-oxidative mucin, also known as cartilage matrix glycoprotein (CMGP), which can effectively reduce the damage of oxidation to chondrocytes; 5) Chicken type II collagen can effectively prevent the digestive destruction of articular cartilage by protease, and reprogram the damaged chondrocytes and cytokines, thereby significantly reducing the incidence of inflammation. 6). Chicken type II collagen can promote the synthesis of chondrocytes and mucin, increase the secretion of synovial fluid and hyaluronic acid; 7). Chicken type II collagen is a powerful anti-inflammatory and pain relief agent; 8). Chicken type II collagen treatment is very safe without any toxic and side effects, which is currently unmatched by any other RA drugs.
- CMGP cartilage matrix glycoprotein
- the present inventors have proposed the idea of cloning the CCOL2A1 gene and efficiently expressing recombinantly produced CCII, and at the same time can deepen the comprehensive knowledge and understanding of the CCOL2A1 gene. Because so far, although human, dog, and mouse COL2A1 genes have been successfully cloned and mapped on the chromosome, CCOL2A1 gene with such great medicinal value, therapeutic value and economic value has not been successfully cloned. Report.
- cDNA gene encoding chicken type II collagen is relatively long, and little is known about the cDNA sequence of its functional region, it is undoubtedly very important to obtain a cDNA encoding chicken type II collagen triple helix region. Due to the complex secondary structure of type II collagen, high repetitive sequences, and high GC content (average GC content is greater than 70%, GC content in individual areas is as high as 80%) (Nah DH, Upholt WB., J Biol Chem, 1991, 266 34 : 23446-23452), therefore, it is very difficult to perform PCR directly.
- the inventors obtained a full-length CCOL2A1 cDNA with a length of 4837bp, which includes a 4260bp open reading frame and a 520bp 3 'untranslated region. It was inserted into the pGEM-T vector and sequenced to confirm that the cDNA sequence was a gene sequence unique to CCOL2A1 that has not been reported to date. The sequencing results are registered in GenBank (AY046949).
- CCOL2A1 genomic DNA has complex structures such as high GC content, many repeats, and too many non-specific binding sites for primers
- the positive clones screened from the chicken genomic DNA library were sequenced, but the sequencing reaction was also restricted due to the high GC content and PolyT structure, which interrupted the sequencing signal.
- chicken CII and canine CII had the highest homology in racial evolution, with cDNA and amino acid homology of 79.03% and 94.77%, respectively, followed by chicken and human CII, with homology of 78.96% and 93.89%, respectively; Chicken and mouse CII had the lowest homology of 77.38% and 92.90%, respectively.
- Human and canine CII have the highest homology among the five species compared, with nucleotide and amino acid homology of 91.89% and 98.52%, respectively, followed by human and mouse CII with 88.63% and 96.15% homology, respectively.
- Type XI collagen is composed of three different polypeptide subunits ⁇ 1, ⁇ 2, and ⁇ 3, where ⁇ 3 is the expression product of the ⁇ (II) gene, that is, only the hydroxylated lysine content of ⁇ 3 and type II collagen is different (Rousseau JC, Farjanel J, Boutillon MM, et al., J Biol Chem, 1996,271 (39): 23743-8);
- Type XIII collagen is a transmembrane form of type II collagen, that is, the type III collagen and type II collagen chain The composition is exactly the same (Snellman A, Keranen MR, Hagg PO, et al.
- the present invention uses RT-PCR and double-antibody sandwich ELISA to analyze the constitutive expression of CCOL2A1 in chicken embryo and adult chicken tissues.
- the results showed that CCOL2A1 mRNA was expressed in the heart, liver, vitreous, cornea, skin, pectoral muscle, breastbone, small intestine, articular cartilage, meniscus and skull of developing chicken embryos, but not detected in spleen, thymus and testis.
- CCII protein was expressed in pancreas and small intestine in addition to sternum and articular cartilage, with the highest expression level in articular cartilage, followed by For the sternum.
- type II collagen formed small ⁇ -chain short peptides and therefore contained ⁇ ( II) chain collagen can be combined with chicken type II collagen monoclonal antibody, so the possibility that XI, XIII type collagen can be detected at the same time cannot be excluded in the experiment.
- cartilage tissues such as the sternum, articular cartilage, and non-cartilage tissues such as the heart, liver, pectoral muscles, small intestine, eye vitreous, and corneal N-terminal exon 2 shear patterns during chick embryo development.
- the cDNA encoding chicken type II collagen obtained from 17-day-old chicken embryo sternum, growth plate, and articular cartilage does not contain exon 2; while the heart, liver, eye vitreous, cornea, small intestine, muscle, skin Exon 2 is present in non-chondral tissues such as the pectoral muscle and the pectoral muscle.
- the total RNA extracted from the eyeball vitreous and cornea is found by RT-PCR with and without the presence of exon 1; but the eyeball vitreous RT -PCR showed that chicken embryos at younger age (less than 14 days) only existed as exon 2 (data not shown); when the chicken embryos developed to 17 days, the RT-PCR results showed another In one case, exon 2 is not the main expression.
- chicken type II collagen exists in the vitreous and cartilage of the eyeball in mature individuals (Seery CM, Davision PF., Invest Ophthalmol Vis Sci, 1991, 32: 1540-1550; Huerre- Jeanpierre C, Mattei MG, Weil D, et al., Am J Hum Genet, 1986, 38 (1): 26-37), but we found that the expression of type II collagen in natural chickens did not exist in the eyeball vitreous ⁇ Collagen expression.
- the inventors successfully cloned the cDNA encoding chicken ⁇ -type collagen, analyzed the chromosomes, analyzed the expression profile, cloned genomic DNA, and analyzed CCOL2A1-related bioinformatics.
- the cloning of the full-length cDNA encoding the chicken type II collagen protein has become a solid foundation for the completion of the present invention and is of great significance.
- Chicken type II collagen is a new strategy for oral tolerance treatment of RA. Cloning of its cDNA will undoubtedly make genetic engineering methods to produce recombinant chicken type II collagen possible.
- one aspect of the present invention relates to an isolated nucleic acid molecule comprising a polynucleotide sequence encoding a full-length chicken type II collagen as shown in SEQ ID NO: 1, or a fragment thereof having the same biological function.
- Another aspect of the present invention relates to chicken type II collagen encoded by the isolated nucleic acid molecule coding sequence of the present invention, or a fragment having the same biological activity or a conservative variant thereof.
- a "variant" of a protein or polynucleotide refers to an amino acid sequence having one or more amino acids or nucleotide changes or a polynucleotide sequence encoding the same.
- the changes may include deletions, insertions or substitutions of amino acids or nucleotides in the amino acid sequence or nucleotide sequence.
- Variants can have "conservative" changes, in which the substituted amino acid has a structural or chemical property similar to the original amino acid, such as replacing isoleucine with leucine.
- Variants can also have non-conservative changes, such as tryptophan Acid replaces glycine.
- “Deletion” refers to the deletion of one or more amino acids or nucleotides in an amino acid sequence or nucleotide sequence.
- “Insertion” or addition means that a change in the amino acid sequence or nucleotide sequence results in an increase in one or more amino acids or nucleotides compared to a naturally occurring molecule.
- Replacement means the replacement of one or more amino acids or nucleotides with different amino acids or nucleotides.
- Bioly active refers to a protein that has the structure, control, or biochemical function of a natural molecule.
- “Likeness” refers to the degree of identical or conservative substitutions of amino acid residues at corresponding positions when the alignment of amino acid sequences is aligned.
- Amino acids used for conservative substitutions For example, negatively charged amino acids may include aspartic acid and glutamine Acids; positively charged amino acids may include lysine and arginine; amino acids with similarly charged head groups that have similar hydrophilicity may include leucine, isoleucine and valine; glycine and Alanine; asparagine and glutamine; serine and threonine; phenylalanine and tyrosine.
- isolated refers to the removal of a substance from its original environment (for example, its natural environment if it occurs naturally).
- a naturally occurring Nucleotides or polypeptides are not isolated when they are present in a living animal, but the same polynucleotides or polypeptides are separated when they are separated from some or all of the substances that coexist in the natural system.
- Such a polynucleotide may be part of a certain vector, or such a polynucleotide or polypeptide may be part of a certain composition. Since the carrier or composition is not part of its natural environment, they are still isolated.
- the polynucleotide of the present invention may exist in the form of RNA or DNA, where DNA includes cDNA, genomic DNA, and synthetic DNA.
- DNA can be double-stranded or single-stranded, and single-stranded can also be sense or antisense.
- the polynucleotide sequence encoding the polypeptide may be the same as the polynucleotide sequence shown in SEQ ID No. 1, or it may be a polynucleotide sequence that differs due to the redundancy or degeneracy of the genetic code, but it encodes ID No. 2 is the same mature polypeptide.
- the present invention further relates to the use of various variants of the polynucleotide according to the present invention, which encode fragments, analogs and derivatives containing the putative amino acid sequence polypeptide shown in SEQ ID No. 2.
- These polynucleotide variants can be naturally occurring allelic variants or non-naturally occurring polynucleotide variants.
- the polynucleotide encoding the polypeptide of the present invention may also be fused with a specific marker sequence in the same reading frame.
- the marker sequence can help the purification of the polypeptide of the present invention.
- the tag sequence can be a hexahistidine tag of the pQE vector to facilitate the purification of the mature polypeptide fused with the tag, or when using a mammalian host (such as the COS-7 cell line of monkey kidney fibroblasts)
- the labeling sequence may be a hemagglutinin (HA) label.
- polynucleotide sequence comprising the polypeptide encoding the present invention may also include specific signal peptide sequences that are homologous or heterologous to help the protein of interest be secreted outside the prokaryotic or eukaryotic cell membrane.
- specific signal peptide sequences that are homologous or heterologous to help the protein of interest be secreted outside the prokaryotic or eukaryotic cell membrane.
- the present invention further relates to a polypeptide having a deduced amino acid sequence shown in SEQ ID No. 2 and active fragments, analogs and derivatives thereof.
- the "fragment having the same biological activity" of the polypeptide represented by SEQ ID No. 2 refers to a polypeptide capable of substantially retaining the biological function or activity of the polypeptide.
- Chicken type II collagen prepared by the method of the present invention is a recombinant protein, a polypeptide or a fragment, a derivative and an analog thereof.
- the fragments, derivatives and analogs of the polypeptide shown in SEQ ID No. 2 may be: (i) one or more amino acid residues are replaced with conservative or non-conservative amino acid residues (preferably conservative amino acids) Residues) of a polypeptide, substituted amino acid residues that are or are not amino acids encoded by the genetic code.
- a silent mutant or functional equivalent of a chicken type II collagen protein can be obtained by insertion, substitution, and / or deletion of amino acid residues.
- Conservative amino acid substitutions can be made based on similarities between amino acid residues in terms of polarity, charge, solubility, hydrophobicity, hydrophilicity, and / or amphiphilic, so long as the activity of brick type II collagen is retained; or (ii) a polypeptide having one or more amino acid residues with a substituent; or (iii) a polypeptide in which a mature polypeptide is fused with other functional compounds, such as compounds that increase the half-life of the polypeptide (eg, polyethylene glycol) Or (iv) a polypeptide in which a mature polypeptide is fused to another amino acid sequence, wherein the other amino acid sequence includes, for example, an amino acid sequence or a protein sequence that helps purify the mature protein.
- domains that facilitate purification include, but are not limited to: metal chelating peptides, such as histidine-tryptophan modules for purification on immobilized metals; protein A domains for purification on immobilized immunoglobulins And domains for FLAGS extension / affinity purification systems (IMMUNEX, Seattle, Wash.). Breaker linker sequences specific to factor XA or enterokinase can also be used to help purify the protein of interest (Porath, J. et al. (1992), Prot. Exp. Purif. 3: 263-281 X. From these disclosures, such Fragments, derivatives and analogs should be within the knowledge of those skilled in the art.
- the chicken type II collagen of the present invention includes the chicken type II collagen shown in SEQ ID No. 2, that is, a mature polypeptide, and also includes at least 90% similarity (preferably 90%) with the polypeptide of SEQ ID No. 2 (Identity) polypeptides, more preferably at least 95% similarity (preferably 95% identity), and also includes some of these polypeptides
- these polypeptide portions usually contain at least 30 amino acids, preferably at least 50 amino acids.
- the polypeptide of the present invention can be prepared by conventional peptide synthesis methods, such as solid-phase peptide synthesis (Merrifidd J. (1963), Journal of the American Chemical Society (J. Am. Chem Soc.) 85: 2149-2154; Roberge, JY et al. (1995) Science, 269: 202-204) againstProtein synthesis can be done manually or by using an automatic peptide synthesizer such as the Applied Biosystems 431A peptide synthesizer ( Perkin Elmer).
- the chicken type II collagen of the present invention can also be isolated and purified from natural biological materials, but it is preferably prepared by recombinant DNA technology using the polynucleotide provided by the present invention.
- the polynucleotide sequence of the present invention can be used to express or prepare recombinant chicken type II collagen.
- the invention therefore relates to a method for preparing chicken type II collagen according to the invention, which generally comprises the following steps:
- the present invention also relates to a recombinant vector comprising a polynucleotide of the present invention, a genetically engineered host cell carrying the recombinant vector of the present invention, and a method for preparing a polypeptide of the present invention by recombinant techniques.
- the polynucleotides of the invention can be used to produce polypeptides by recombinant techniques.
- the polynucleotide may be present on any vector selected from a variety of expression vectors used to express polypeptides.
- These vectors include chromosomal, non-chromosomal and synthetic DNA sequences, such as derivatives of SV40, bacteria Plasmids, phage DNA, yeast plasmid, vectors derived from the combination of plasmid and phage DNA, viral DNA, baculovirus, vaccinia virus, adenovirus, fowlpox virus, and pseudorabies virus, including but not limited to the pQE series (Qiagen), pBS , PD10, phagescript, psiX174, pBluescript SK, pBSKS, pNH series (Stratagene), pTRC99a, pKK223-3, pDR540, pRIT5 (Pharmacia);
- the invention also includes recombinant constructs containing a polynucleotide of the invention.
- the construct includes a vector, such as the plasmid or viral vector described above, in which the polynucleotide sequence of the present invention can be inserted in the forward or reverse direction.
- the construct also contains regulatory sequences, for example, promoters (including constitutive and inducible promoters) effectively linked to the polynucleotide sequence of the present invention, and mediate the transcription of downstream structural sequences.
- Suitable promoters include, but are not limited to, the PL promoter of ⁇ phage, the baculovirus polyhedrin promoter; bacterial promoters such as; Lacl, LacZ, T3, T7, gpt, ⁇ PR, PL and trp; eukaryotic promoter Promoters such as: CMV immediate early promoter, HSV thymidine kinase promoter, early and late SV40 promoter, retroviral LTR, and mouse metallothionein I promoter; also includes promoters derived from the genome of plant cells, Such as heat shock protein, RUBISCO promoter.
- the expression vector also contains a ribosome binding site and a transcription terminator required for translation initiation, which may also have suitable sequences to enhance expression, such as enhancers.
- Enhancers are cis-acting factors of DNA, usually about 10-300bp, which act on the promoter to increase its transcription.
- SV40 is an enhancer located 100-270 bp behind the origin of replication, an cytomegalovirus early promoter enhancer, a polymorphism enhancer and an adenovirus enhancer located behind the origin of replication.
- the expression vector preferably further comprises one or more selectable genes, resistance genes and / or marker genes capable of providing phenotypic characteristics to facilitate selection of transformed host cells.
- Mammal expression vectors generally include origins of replication, appropriate promoters, enhancers and any necessary ribosome binding sites, polyadenylation sites, splice donor and acceptor sites, transcription termination sequences and 5, flanking non- Transcribed sequence. DNA sequences and polyadenylation sites derived from SV40 splicing sequences can be used to provide the required non-transcribed genetic elements.
- the vector containing the nucleotide sequence encoding the polypeptide of the present invention may also contain specific signal peptide sequences that are homologous or heterologous to help the protein of interest be secreted outside the prokaryotic or eukaryotic cell membrane.
- specific signal peptide sequences that are homologous or heterologous to help the protein of interest be secreted outside the prokaryotic or eukaryotic cell membrane.
- Effective expression vectors for bacteria can be constructed by inserting the structural DNA sequence encoding the protein of interest into an operable reading frame with a functional promoter, along with appropriate translation initiation and termination signals.
- Those of ordinary skill in the art are well aware of methods for constructing the nucleotide sequences of the present invention and suitable transcriptional and translational regulatory elements. These methods include in vitro recombinant DNA technology, synthetic technology, and in vivo genetic recombination technology (Sambrook, J. (1989), Molecular Cloning Laboratory Handbook, Cold Spring Harbor Press; Plainview, NY; Ausubel, FM (1989) Contemporary Molecular Biology Methods (Current Protocols in Molecular Biology), John Wiley & Sons, NY).
- Vectors containing the appropriate DNA sequences, suitable promoters or control sequences described above can be used to transform a suitable host and allow the host to express the protein.
- a suitable host is selected to express the protein of interest.
- Suitable Hosts for expressing the polypeptides of the present invention include, but are not limited to, prokaryotic hosts, such as E.
- eukaryotic hosts such as: Saccharomyces, Aspergillus, insect cells, drosophila S2 and grassland Spodoptera litura Sf9; animal cells such as CHO, COS (monkey kidney fibroblast cell line, Gluzman (cell 23: 175, 1981) and other cell lines capable of expressing compatible vectors, such as C127, 3T3, CHO, HeLa, BHK Bowes melanoma cells; plant cells and adenoviruses, etc.
- Various mammalian cell culture systems can also be used to express recombinant proteins. From these teachings, the selection of a suitable host should be within the knowledge of those skilled in the art .
- the vector or construct having the nucleotide sequence of the present invention as described above can be introduced into a suitable host cell by conventional methods to produce a recombinant product.
- Methods for introducing the construct into the above-mentioned host cells are well known to those skilled in the art, including but not limited to: calcium chloride-mediated transformation, calcium phosphate transfection, DEAE-dextran-mediated transfection, electroporation, microscopy Injection, particle bombardment or gene gun methods (Sambrook, J. (1989), Molecular Cloning Laboratory Handbook, Cold Spring Harbor Press; Plainview, NY; Ausubel, FM (1989) Contemporary Molecular Biology Methods, John Wiley & Sons, NY; Hobbs, S.
- the selected promoter is induced by an appropriate method (such as temperature shift or chemical induction), and The cells are cultured for a period of time. It is well within the knowledge of those skilled in the art that the appropriate culture conditions and media for different host strains or cell selections and the nature of the protein of interest expressed.
- RNA can also be produced using cell-free translation systems (Sambrook, J. (1989), Handbook of Molecular Cloning Labs, Chapter 18, Section 4, Cold Spring Harbor Press; Plainview, NY).
- Cells or cultures are usually harvested by centrifugation.
- any convenient physical, chemical or enzymatic method can be used, including freeze-thaw cycles, ultrasound, mechanical disruption, or the use of cytolytic agents or specific enzymes to disrupt the cells, and the resulting crude extracts Save for further purification.
- the target protein can be recovered directly from the culture supernatant by a conventional method. These methods are well known to those skilled in the art.
- the method of recovering and purifying peptides from recombinant cells is to use ammonium sulfate or ethanol precipitation, acid extraction, anion or cation exchange chromatography, size exclusion chromatography, hydrophobic interaction chromatography, affinity chromatography, and hydroxyl groups.
- Apatite chromatography and lectin chromatography Forming the complete conformation of the mature protein also requires a protein refolding step.
- HPLC high performance liquid chromatography
- capillary electrophoresis can be used for the final purification step.
- the present invention also relates to the use of chicken type II collagen prepared according to the polynucleotide sequence of the present invention in the preparation of a medicament for treating and / or preventing rheumatoid arthritis and other diseases.
- the coding region or a portion of the nucleic acid molecule of the present invention such as a full-length sequence, a partial sequence, or a mutant thereof, can be used to effectively express chicken type II collagen or a functional fragment thereof of the present invention.
- the present invention particularly relates to a pharmaceutical composition for preventing and / or treating osteoarthritis and rheumatoid arthritis, which comprises a therapeutically effective amount of chicken type II collagen prepared by the method of the present invention, and any Optional, pharmaceutically acceptable carrier.
- the present invention also includes a food or beverage composition, which is characterized by containing a certain amount of chicken type II collagen prepared by the method of the present invention.
- the chicken type II collagen is used to prepare products such as health foods or food additives to play a health role in rheumatoid arthritis, osteoarthritis and other diseases, especially in osteoarthritis.
- the present invention also includes a food additive composition containing a certain amount of chicken type II collagen prepared by the method of the present invention.
- the invention also includes the use of the nucleic acid molecule or a fragment thereof according to the invention for gene therapy.
- FIG. 1 A PCR cloning strategy showing chicken type II collagen-encoding genes according to the present invention.
- FIG. 1 The structure of the full-length chicken type II collagen according to the present invention is shown.
- FIG. 1 Chromosome banding of chicken type II collagen-encoding genes.
- Figure 10 Comparison of phylogenetic tree of human, dog, rat, chicken and spotted type II collagen with gene homology.
- FIG. 11 WB analysis of pPIC9K / CCOL2Al (A) and pPICZotB / CCOL2Al (B) -induced expression supernatants and cytosolic expression products, where M is the protein molecular weight standard, 1-5 is the WB positive band, and 6 is the empty vector control.
- FIG. 12 WB analysis of pPICZaB / CCOL2Al / GS115 and pPIC9K / P4Ha.
- PPIC9 / P4Hp co-expression where M is the protein molecular weight standard, 1-5 is the WB positive band, and 6 is the empty vector control.
- M is the protein molecular weight standard
- 1-5 is the WB positive band
- 6 is the empty vector control.
- RNA extracted was reverse transcribed using the oligodT-3sites adaptor primer in RACE kit (TAKARA) as the downstream primer. After reverse transcription, inactivate the reverse transcriptase at 95 ° C for 5 minutes and store the cDNA at -20 ° C for future use.
- TAKARA RACE kit
- C-telomerin (COL2A1-2) cDNA The following PCR amplification procedures: Primers col2al-2F, col2al-2R, 10 x PCR buffer; 5 L, MgCl 2 (25Mm) 5 ⁇ L, dNTP Mix (lOMm) 1 ⁇ , each primer is ⁇ ⁇ (20pmol / ⁇ L) 1 ⁇ L, 100% glycerol 2.5 ⁇ ⁇ (final concentration 5%), cDNA 2 ⁇ L, Taq 0.8 ⁇ L, total volume 50 L.
- the procedures used for PCR are 96 ° C 10min, 96 ° lmin, 62 CI min, 72 ° C 3min, 72 "7min.
- the PCR reaction system contains a final concentration of 5% glycerol and 1% agarose electrophoresis to check the amplification results.
- the recovery kit (Invitrogen) recovers the target gene, ligates the pGEM-T vector (Promega), transforms it into DH5a, and identifies it by enzyme digestion and sequencing.
- the upstream primer col2al-lF (see Table 1) of chicken COL2A1 3'UTR was designed and amplified, and the corresponding 3 sites adaptor primer (col2al-lR) was amplified by reverse transcription using the 3 'RACE strategy. Increase 3, UTR, where PCR buffer is used, and the primers col2al-lR are 3sites adaptor primers, using 96. C 5min, 96 ⁇ lmin, 63 ° C 1 min, 72 ° C 30 sec (4 cycles), 96 30sec, 61 ° C 30sec, 72 ° C 20sec (26 cycles), 7 ⁇ 7min. Recovery and conversion are the same as the previous steps. Cloning of Chicken COL2A1 N-Propeptide cDNA
- col2al-5F and co! 2al-5R were used as upstream and downstream primers to amplify the 5, N original peptide.
- PCR buffer With PCR buffer, annealing and extension are at the same temperature.
- Plasmid extraction, digestion, recovery, ligation, transformation, and identification of constructing recombinant plasmids are in accordance with the "Molecular Cloning Experiment Guide” (Sambook J, Fritsch EF, Maniatis T. Molecular cloning: a laboratory manual. 2 ed Cold Spring Harbor Laboratory Press, 1989.).
- the chicken COL2A1 cDNA sequence fragment gene, SOE-linked chicken COL2A1 cDNA sequence fragment, and full-length chicken COL2A1 gene were inserted into the pGEM-T vector (Promega) and sequenced after digestion and identification.
- PCR ligated product transforms DH5a Competent: Take the ligated pGEMT-col2al-l (2, 3, 4, 5 etc.) 4 ⁇ 1, add ⁇ freshly prepared Competent state, ice bath for 30 minutes, 42 heat shocks for 90 seconds, then quickly place in ice water for 2-3 minutes, add 900 ⁇ 1 ammonium-free LB, 37, 160 rpm, shake gently for 45 minutes, add 1 ⁇ 4 ⁇ 1, 16 ⁇ 1 (50mg / ml) X-gal , Coat ampicillin LB plate and incubate at 37 ° C for 16 hours until the colony size is appropriate.
- the plasmids pGEMT-col2al-2, pGEMT- col2al-l, pGEMT- col2al-3, pGEMT- coI2al- (1 + 2), col2al-5, and col2al-4 were prepared by the above method.
- the plasmid was digested with Not and Nco to identify positive clones.
- Not and Nco double digestion system ⁇ ⁇ , 0.1% BSA ⁇ , using Promega ⁇ 7500 kit to extract plasmid 8 ⁇ 1, Not 1 ⁇ 1, Nco ⁇ , water 8 ⁇ 1, total 20 ⁇ 1, 37 digestion for 2 hours.
- the positive clones were identified by 1% agarose electrophoresis, and the positive clones were submitted for sequencing.
- the nucleic acid sequencer was ⁇ 377 of PE company. SOE-PCR of chicken COL2A1 full-length cDNA
- the first PCR reaction uses the plasmid products pGEMT-col2al-2, pGEMT-col2al-l as templates, and uses col2a-2F and col2al-lR as the upstream and downstream primers to connect col2al-2 and col2al-1 to form a product.
- PCR amplification conditions 5min, 96 C lmin, 64 € 1 min, ⁇ 7 120 sec (4 cycles), 96 ° C 30sec, 62 ° C lmin, 72 90sec (26 cycles), 72 ° C 7min.
- col2a-5F and col2al-4R were used as the upstream and downstream primers, and the col2al-5 and col2al-4 plasmid PCR products were used as templates.
- PCR amplification conditions 96. C 5min, 96 € lmin, 62 ° C 2 min, 72. C 120 sec (4 cycles), 96 ° C lmin, 60 lmin, 12 ° C 90 sec (26 cycles), 72 7miii.
- col2a-5F and col2al-lR were used as the upstream and downstream primers, and the PCR products (coI2al-5 + 4, col2al 1 + 2 + 3) ligated in the previous three times were used as templates to obtain the full-length col2al cDNA.
- PCR amplification conditions 96 ° C 5min, 96 ° C lmin, 64 ° C 2 min, 72 "C 210 sec (4cycles), 96 ° C lmin, 62 lmin, 72 X: 180sec (26 cycles), 12 ° C 7min.
- the primer sequences used for chicken COL2A1 full-length cDNA clone are shown in Table 1: Table 1.
- Chicken COL2A1 genomic DNA was extracted using Wizard genomic DNA purification kit (Promega). See the kit instructions for specific operations. The purity of the extracted DNA was measured at 260/280 from 1.6 to 1.8 (BECKMAN, DU®640). PCR Cloning and Library Selection of Chicken COL2 A1 Genomic DNA
- PgF and PgR were used as the upstream and downstream primers, and the primer sequences were: PgF 5, CCA GGC AAG GAT GGC GCA CG 3 I PgR 5'CCT GAT CGG CTC CGC CAA TGT CCA TAG G 3; CCOL2A1 C-terminal genome was cloned.
- LA Taq enzyme GC buffer
- the PCR amplification results were checked by 0.8% agarose electrophoresis, and the target gene was recovered with a gel recovery kit and ligated to the pGEM-T vector. The positive clones were identified by enzyme digestion and sequencing.
- the N-terminal sequence of the CCOL2A1 genome was also cloned in sections using the whole blood DNA as a template by the SOE-PCR method to splice into a nearly full-length CCOL2A1 genomic DNA sequence.
- COL2A1 3 'UTR was unique to COL2A1 as retrieved from Blast's nucleotide sequence database. Therefore, COL2A1 cDNA 3 and UTR were used as amplification targets to study the expression of ⁇ ⁇ (II) in developing chicken embryos.
- RT-PCR was used to analyze organs such as heart, liver, vitreous, cornea, skin, pectoral muscle, and sternum of 17-year-old chicken embryos.
- the primers used were col2al-IF, col2al-lR in Table 1.
- the product was linked to pGEMT-easy vector. , Sequencing after digestion.
- GAPDH was used as an internal reference, and primers PF GAPDH 5 and GC AGA GGT GCT GCC CAG AAC 3 I PRGAPDH 5 TCA CTC CTT GGA TGC CAT GTG 3 'were used to amplify the 412bp GAPDH.
- Type II collagen detection kit for four-year-old chicken heart, liver, spleen, kidney, vitreous, cornea, skin, pectoral muscle, meniscus, pancreas, thymus, small intestine, stomach, testis, skeletal muscle, brain, cerebellum A total of 20 organs, articular cartilage, sternum, and lungs were tested for the presence of type II collagen by ELISA.
- Double antibody sandwich ELISA was used to detect the extracted type II collagen.
- the splicing of chicken COL2A1 exon 2 in various organs of chicken embryos was analyzed by RT-PCR.
- the col2al-5F and col2al-5R in Table 1 were used as upper and lower primers for chicken skin, liver, eye vitreous, cornea, and chest muscles.
- Small intestine, sternum, articular cartilage and other PCR amplification analysis 1% agarose electrophoresis to detect the specificity of PCR amplification products.
- RT-PCR results showed that chicken COL2A1 5 'N protopeptide exon 1 exists in chicken heart, liver, eye vitreous, cornea, pectoral muscle, and small intestine, while cartilage tissues such as the sternum and articular cartilage do not contain exon 2. Expressions exist. (See Figure 6) Example 5 Mapping of Chicken COL2A1 Gene Chromosome
- chromosomal ISH technology was used to label chicken COL2A1 3 labeled with the digoxin high-efficiency labeling detection kit (Roche).
- the UTR gene fragment was used as a probe to hybridize with chicken chromosomes in the metaphase. Study its location on the chromosome.
- MegAlign in Dnastar software package was used to align chicken COL2A1, dogs (AF023169, AF242201) and humans retrieved from GenBank database.
- MM001844 spotted fish (U23822), mouse (M65161) and other species of type II collagen triple helix region cDN
- spotted fish U23822
- mouse M65161
- other species of type II collagen triple helix region cDN A sequence and protein sequence for homology comparison and analysis, Genedoc program editing, mapping evolutionary tree (see Figure 10).
- the chicken COL2A1 cDNA sequence was compared with known human, dog, mouse, and spotted fish. The results showed that chicken COL2A1 and dog CII had the highest homology in race evolution.
- the amino acid and cDNA homology were 79.03. %, 94.77%; followed by chicken and human with 78.96% and 93.89% homology; chicken and mouse with 77.38% and 92.90% homology, respectively.
- Humans and dogs have the highest homology among the five species compared, with amino acids and proteins being 91.89% and 98.52%, respectively.
- the comparison results establish a phylogenetic tree. references
- pPIC9K, pPIC9, pPICZaA, B, C expression vector systems and GS115, X33 yeast strains were purchased from Invitrogen; mung bean nuclease was purchased from NEB; Spheroplast kit for yeast and Pichia EasyComp TM kit were purchased from Invitrogen; Mini Type II protein Electrophoresis apparatus and protein semi-dry electrophoresis apparatus (Bio-Rad); GeL-Pro3.1 gel imaging system (Media Cybernetic); DU640 type nucleic acid-protein analyzer (Beckman).
- Primer sequence 25 5'GGT ACC TTG GTG GAA ACT TTG CGG 3 l
- Primer 26 sequence 5'GGT ACC GTT ACA AGA AGC
- PCR amplification was performed using plasmid pGEM-T / CCOL2Al as a template.
- PCR reaction system is: 2 xGC Buffer I 25 ⁇ 1, dNTP (2.5 ⁇ m) 4 ⁇ 1, primer 25 (20 ⁇ M) 0.5 ⁇ 1, primer 26 (20 ⁇ M) 0.5 ⁇ 1, PCR amplification procedure is as follows 96 ⁇ 5 min 4 x (96 C lmin, 67 ⁇ 1 ⁇ , 72 C 3 min) 26 x (96 ° C lmin, 65 ⁇ 30sec, 72 ° C 2.5min) 72 5min.
- the recovered PCR product was cloned into the pPICZaB expression vector, and the expression vector pPICZaB / CCOL2Al was inserted in the correct insertion direction using the restriction enzyme Bam.
- CCOL2A1 was further constructed in a multi-copy vector pPIC9K, and pPIC9K / CCOL2Al was constructed.
- the construction process of pPIC9K / CCOL2Al is detailed in the figure below, which is briefly described as follows: First, pPICZaB / CCOL2Al is linearized with Kpn I and then flattened with mung bean nuclease, while pPIC9K is flattened with blunt-end enzyme S / mBI. T4 DNA ligase was ligated to construct a pPIC9K / CCOL2A1 expression vector, which was sequenced to determine whether the reading frame was correct.
- the protoplast method is used to transform yeast.
- the process is as follows:
- d) take 1.5ml eppendorf, add 800 ⁇ 1 15% SDS to each tube, and mark 0, 2, 4, 5, 6, 8, 9, 10, 15, 18, 20, 25, 30, 35, 40 respectively Represents the time (min) for Zymolyase to digest the cell wall; take 200 ⁇ 1 of the bacteria suspension from tube A and add it, and put it into the frozen tube as a control tube for Zymolyase digestion in minutes. Add 7.5 ⁇ 1 Zymolyase (2.25 units) to tube A, mix gently, and incubate; according to the time marked on the tube, take 200 ⁇ 1 of the digested cell suspension each time from tube A and add 800 l of 5% SDS to the eppendorf tube.
- Protoplast% 100- [(OD800 (min) / OD800 (Omin) ⁇ 100), to calculate the formation 70% protoplast time (t min); add 7.5 ⁇ 1 Zymolyase to the B tube and incubate at 30 ° C for t min;
- Every 150 ⁇ 1 of the transformed protoplasts is mixed with 10 ml of RD agarose medium and spread on the upper layer of an RDB plate, cultured at 28-30 ° C for 4-6 days and observed the results.
- each transformant was transferred to a resistant plate containing G418 or Zeocin at different concentrations.
- G418 concentration 0.25mg / ml, 0.5 mg / mK 1 mg / mK 2.0mg / ml, 3.0 mg / mL 4.0mg / ml; Zeocin concentration 100 g / ml, 200 g / ml).
- Resistant transformants and empty vector controls were inoculated into 2 ml of YPD, cultured at 30 300 rpm for 2 days, genomic DNA was extracted after centrifugation, and the integration of CCOL2A1 gene in the yeast genome was detected by PCR.
- Specific primers of CCOL2A1 cDNA were used: F: 5, GGTACC TTG GTG GAA ACT TTG CGG 3; R: 5'GGTACC GTT ACA AGA AGC AGA CTG 3.
- the PCR cycle parameters are: 96!
- the clones that were identified as positive were inoculated into 30 ml BMGY medium at 28 ° C and 300 rpm for 2 days. The supernatant was discarded by centrifugation, resuspended at 1/10 volume of BMMY, and continued to be cultured at 28 ° C and 300 rpm. Every 24 hours during the period Replenish methanol to 1% by volume.
- PCR reaction system is: 10 x PCR Buffer 5 ⁇ 1, MgCI 2 (25mM) 5 ⁇ 1, dNTP Mix (2.5mM) 4 ⁇ 1, primers a (20 ⁇ ) 0 ⁇ 5 ⁇ 1, primer b (20 ⁇ ) 0.5 ⁇ 1, cDNA ⁇ , Taq 0.5 ⁇ 1, ⁇ 2 0 up to 50 ⁇ 1; PCR amplified product was detected by 1% agarose electrophoresis
- the PCR amplification program is: 96 * C5mhi ⁇ 4 lmin, 72 ° C3min) ⁇ 26 x (96 imin, 69 ⁇ lmin, 72 2min) ⁇ 72. C3miii.
- the PCR product of P4 ⁇ obtained as described above was ligated to the pGEM-T vector to construct the pGEM-T / P4Hoc plasmid.
- the Not I restriction site was introduced by PCR.
- Primer a 5 GCG GCC GCA GCA GAT ACT GCT ACG AAA G 3 ⁇
- Primer b 5 GCG GCC GCC TCT CTT GGT TGT AGG 3 ⁇ PCR amplification using Pfu DNA polymerase, After the product was recovered, an A tail was added, which was ligated into the pGEM-T vector and sequenced; pGEM-T / P4Hoc was digested with VW1 to recover the target fragment, and the P4 ⁇ gene was ligated with Notl's linearized yeast pPIC9K vector by T4 DNA ligase. And constructed into pPIC9K / P4Ha expression vector. Verify that the insertion direction is correct.
- Design primer F 5'GCG GCC GCA CAG CCC CTG GAG GAG 3 based on the known chicken P4 ⁇ subunit gene sequence; Primer R: 5'GCG GCC GCG GTG ATG TAG ATC AGT C 3 ', and introduce VW1 restriction site;
- the RNA extracted from 17-year-old chicken embryo sternum cells was subjected to PCR amplification.
- the reaction system used [Mg 2t ] at a concentration of 1.5 mM.
- the PCR amplification procedure was: 96 ° C5min ⁇ 4 ⁇ (96.C lmin, 53 ° C lmin, 30sec, 51 ° C30sec, 72 2min) ⁇ 72 5min.
- PCR products were ligated into pGEM-T vector for sequencing; The sequencing-corrected clone was then introduced into the pPIC9 expression vector of Pichia pastoris to construct a pPIC9 / P4H ⁇ expression vector.
- Example 9 Co-expression of pPIC9K / P4Ha, pPI 9 / P4 ⁇ and pPICZaB / CCOL2Al in yeast GS115
- the recombinant expression vectors pPIC9K / P4Ha, pPIC9 / P4HP, and pPICZaB / CCOL2Al were linearized with Bg1, SaH. PmeK, respectively, as described in Examples 7 and 8. 10 g of each linearized scutellum was used to transform GS115. Positive transformants were selected on MM plates containing G418 and Zeocin, and cultured at 30 ° C for 4-6 days.
- P4 ⁇ ⁇ and ⁇ were constructed on the same expression vector pPICZaA to form pPICZaA / P4H (x-P4HP (x-P4HP Double expression vector.
- PCR was performed using the plasmids pGEM-T / P4Ha and pGEM-T / P4Hp obtained in Examples 8 and 9 as templates.
- P4Ha primer F 5'GCGGCCGC GAT ACT GCT ACG AAA G3 ⁇ Primer R: 5'GCGGCCGC CTC CAA CTC TGA TAA C 3 ', P4 ⁇ Primer F: 5 GCGGCCGC CAG CCC CTG GAG GAG -3 IR 5, GCGGCCGC TTA ATC ATC ATC AGC 3
- I PCR cycle parameters 96 ° C 5min ⁇ 4 x (96.C 1 min, 66 80sec, 72 90sec) ⁇ 26 x (96 ⁇ 1 ⁇ , 64 € 40sec, 72 ° C 50sec) ⁇ 72 ° C 5min.
- the PCR amplification products were checked by 1% agarose electrophoresis, and the specific amplification target band was recovered, and the pGEM-Teasy vector was
- the correct sequencing of pGEM-T / P4Ha and pGEM-T / P4Hp were respectively digested with Noil and ligated to pPICZaA to obtain pPICZaA / P4Hoc recombinant expression vector and pPICZocA / P4HP expression vector.
- the complete expression unit of pPICZaA / P4HP was excised, inserted into pPICZaA / P4Ha 0, and according to / 11, J? «WHI is an isolyase, which can be linked to the linearized pPICZaA / P4Hcc II to construct pPICZaA / P4H (xP dual expression vector.
- PCR was used to identify whether the directions of the P4 ⁇ and ⁇ expression units in the pPICZaA / P4Ha-P dual expression vector were consistent.
- Example 11 Co-expression of pPIC9K / CCOL2Al and pPICZaA / P4Ha-P
- PPIC9K / CCOL2Al was co-transformed with pPI9Z ⁇ / P4 ⁇ - ⁇ to GS115 for co-expression of three genes. Production of protoplasts, selection of positive transformants,
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JP2004557753A JP2006512063A (ja) | 2002-11-14 | 2003-11-14 | ニワトリii型コラーゲンの全長をコード化しているポリヌクレオチド配列及びその使用 |
US10/534,538 US7973010B2 (en) | 2002-11-14 | 2003-11-14 | Full length polynucleotide coding chicken type II collagen and the use of it |
EP03773436A EP1584624B1 (en) | 2002-11-14 | 2003-11-14 | A full-length polynucleotide coding chicken type ii collagen and the use of it |
AU2003284807A AU2003284807A1 (en) | 2002-11-14 | 2003-11-14 | A full-length polynucleotide coding chicken type ii collagen and the use of it |
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CN02149375.8 | 2002-11-14 | ||
CNA021493758A CN1500876A (zh) | 2002-11-14 | 2002-11-14 | 一种编码鸡ⅱ型胶原蛋白的全长多核苷酸序列及其用途 |
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PCT/CN2003/000967 WO2004052910A1 (fr) | 2002-11-14 | 2003-11-14 | Collagene de type ii de poulet codant un polynucleotide entier, utilisation de ce dernier |
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US (1) | US7973010B2 (zh) |
EP (1) | EP1584624B1 (zh) |
JP (1) | JP2006512063A (zh) |
CN (3) | CN1500876A (zh) |
AU (1) | AU2003284807A1 (zh) |
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Cited By (2)
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WO2007010623A1 (ja) * | 2005-07-22 | 2007-01-25 | Phg Corporation | 新規なポリペプチド及びその製造方法 |
WO2021150959A1 (en) * | 2020-01-24 | 2021-07-29 | Geltor, Inc. | Animal-free dietary collagen |
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CN101130091B (zh) * | 2006-08-25 | 2011-09-28 | 中国人民解放军军事医学科学院附属医院 | 一种治疗类风湿性关节炎的dna疫苗及其用途 |
CN108659127A (zh) * | 2018-04-03 | 2018-10-16 | 东莞光极生物科技有限公司 | L10d9抗体及其应用 |
DE102021202830A1 (de) * | 2021-03-23 | 2022-09-29 | Gelita Ag | Rekombinantes Typ II-Kollagen zur therapeutischen Verwendung |
WO2023009656A1 (en) * | 2021-07-28 | 2023-02-02 | Geltor, Inc. | Pharmaceutical compositions and methods for treating connective tissue conditions with collagen polypeptides |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US6323319B1 (en) * | 1997-08-08 | 2001-11-27 | Five Continent Enterprise, Inc. | Method of making hydrolyzed collagen type II |
WO2002058484A2 (en) * | 2001-01-24 | 2002-08-01 | Collagen Ii Nutrition, Inc. | Kolla 2-desiccated avian sternal cartilage powder |
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US6010722A (en) * | 1995-06-13 | 2000-01-04 | Nippon Meat Packers, Inc. | Oral remedy for rheumatoid arthritis and functional food |
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2003
- 2003-11-14 JP JP2004557753A patent/JP2006512063A/ja active Pending
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- 2003-11-14 WO PCT/CN2003/000967 patent/WO2004052910A1/zh active Application Filing
- 2003-11-14 CN CN2009102502266A patent/CN101899444A/zh active Pending
- 2003-11-14 AU AU2003284807A patent/AU2003284807A1/en not_active Abandoned
- 2003-11-14 CN CNA2003801004387A patent/CN1692121A/zh active Pending
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Publication number | Priority date | Publication date | Assignee | Title |
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US6323319B1 (en) * | 1997-08-08 | 2001-11-27 | Five Continent Enterprise, Inc. | Method of making hydrolyzed collagen type II |
WO2002058484A2 (en) * | 2001-01-24 | 2002-08-01 | Collagen Ii Nutrition, Inc. | Kolla 2-desiccated avian sternal cartilage powder |
Non-Patent Citations (3)
Title |
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DATABASE GENEBANK [online] NCBI; 25 April 2002 (2002-04-25), NINOMIYA Y. ET AL., XP008099663, Database accession no. (L00061.1) * |
See also references of EP1584624A4 |
TRENTHAM DE; DYNESIUS-TRENTHAM RA; ORAV EJ ET AL., SCIENCE, vol. 261, 1993, pages 1727 - 1730 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007010623A1 (ja) * | 2005-07-22 | 2007-01-25 | Phg Corporation | 新規なポリペプチド及びその製造方法 |
WO2021150959A1 (en) * | 2020-01-24 | 2021-07-29 | Geltor, Inc. | Animal-free dietary collagen |
US11174300B2 (en) | 2020-01-24 | 2021-11-16 | Geltor, Inc. | Animal-free dietary collagen |
US11332505B2 (en) | 2020-01-24 | 2022-05-17 | Geltor, Inc. | Animal-free dietary collagen |
GB2610313A (en) * | 2020-01-24 | 2023-03-01 | Geltor Inc | Animal-free dietary collagen |
GB2610313B (en) * | 2020-01-24 | 2024-07-03 | Geltor Inc | Animal-free dietary collagen |
Also Published As
Publication number | Publication date |
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EP1584624A1 (en) | 2005-10-12 |
CN101899444A (zh) | 2010-12-01 |
US20060276383A1 (en) | 2006-12-07 |
EP1584624A4 (en) | 2009-07-15 |
US7973010B2 (en) | 2011-07-05 |
EP1584624B1 (en) | 2012-10-17 |
CN1692121A (zh) | 2005-11-02 |
AU2003284807A1 (en) | 2004-06-30 |
JP2006512063A (ja) | 2006-04-13 |
CN1500876A (zh) | 2004-06-02 |
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