35 results about "HUMAN THYMUS" patented technology

The invention relates to the technical field of antibodies, and especially relates to a human thymus stromal lymphopoietin monoclonal antibody and an application thereof. The TSLP antibody can be specifically combined with hTSLP, has high affinity, and can effectively inhibit the combination of TSLP and a receptor thereof so as to inhibit activation of a downstream signal path and activation of immune cells by TSLP. The TSLP antibody has great significance in detection of the content of hTSLP and allergic asthma, and diagnosis, treatment and prognosis of inflammatory or allergic inflammatory diseases such as chronic obstructive pulmonary disease, allergic dermatitis, allergic rhinitis, allergic nasosinusitis, eosinophilic granulocytic esophagitis, allergic conjunctivitis, inflammatory bowel disease or atopic dermatitis.

The invention provides a kit for detecting human immune ages and an application of the kit. Reagents in the kit comprise CD3, CD4, CD31 and CD45RA monoclonal antibodies which are four fluoresceins applicable to flow cytometers, and the colors of the four fluoresceins are different. The reagents in the kit comprise, in weight percent, 0.66-94.34% of fluorescent labeled CD3, 0.66-94.34% of fluorescent labeled CD4, 0.66-94.34% of fluorescent labeled CD31 and 0.66-94.34% of fluorescent labeled CD345RA. The kit is used for detecting recently outputted cell number of human thymuses, the immune agesof people are determined according to detection results of the recently outputted cell number of the human thymuses, and the immune ability of a human body is evaluated.

The invention relates to a kit used for diagnosing the acute exacerbation period of chronic obstructive pulmonary disease. The kit comprises a cell factor and an enzyme labeled antibody thereof and is characterized in that the cell factor is interleukin 9, interleukin 18 binding protein A, C-C sequence ligand 28, a human skin T cell capture chemokine, a Beta cytokine, a monocyte chemoattractant protein-3, a monocyte chemoattractant protein-4, a lymphotoxin induced protein entering the T cell, a macrophage-derived chemokine, a human bone marrow suppression factor 1, a human macrophage stimulating protein, an osteopontin and a human thymus expressed chemokine. The invention firstly proposes that the cell factor can be used as a leading indicator for diagnosis of the acute exacerbation period of the chronic obstructive pulmonary disease.

The invention provides a bispecific antibody against human thymic stromal lymphopoietin (TSLP), a monoclonal antibody and uses of the bispecific antibody and the monoclonal antibody.

The invention provides a humanized mouse tumor model. The humanized mouse tumor model is characterized by being obtained by transplanting human thymus tissues and CD34+ hematopoietic stem cells homologous with the thymus tissues. The humanized mouse tumor model transplanted by thymus and hematopoietic stem cells is constructed for the first time. The humanized mouse tumor model is determined to have a complete immunosuppression microenvironment, is suitable for overall evaluation of solid tumor immunotherapy, and can be applied to evaluation of feasibility and effectiveness of immunotherapy curative effects. The humanized mouse tumor model makes up for singleness and model incompleteness of existing tumor immunotherapy evaluation methods, and provides reference value for clinical research.Compared with traditional models, the humanized mouse tumor model supplements key effects of a human immune system in immunotherapy.

The invention provides a method for massively producing human thymosin with low cost. The method is used for implementing restriction enzyme digestion to obtain a fusion gene sequence with a structure as follows: A-X-C, wherein A is a nucleotide sequence of site (1-150)-(1-372) amino acids at the N- end of coded mature human serum albumin; X is the nucleotide sequence of connecting peptide with enterokinase or tobacco etch virus (TEV) protease cutting site contained in a code; and C is a human thymosin gene. The method comprises steps as follows: connecting the fusion gene sequence to an expression carrier; transforming and introducing the expression carrier into saccharomycetes; carrying out induction expression to obtain soluble human serum albumin-thymosin fusion protein; then adding the TEV protease for cutting; and separating and purifying to obtain the recombined human thymosin. The human thymosin production method provided by the invention has the advantages that consistency of quality of products can be ensured, no limitation is generated from sources of raw materials, cost is low, an expression index is high, and mass production can be achieved and the like.

The invention relates to a method to produce human thymosin alpha 1 that uses transgene tomato as bio-reactor. It optimizes the nucleotide sequence of human thymosin alpha 1 according to plant preference codon. Compounding the gene and making it connect end to end to form tetrad, then, the plant expression transforming tomato expressed by thymosin alpha 1 cascading gene that is driven by cauliflower 35s promoter would be constructed. The thymosin alpha 1 would have important effect in vivo that could promote T cell function and the producing of special antibody and cell element. It could cure autoimmune diseases like lupus erythematosus, chronicity hepatitis B, etc. It could be also used as assistant medicine for curing cancer and tumor. The fruit containing thymosin alpha 1 could enhance human body immunity.

The invention discloses a liquid preparation of an anti-human thymic stromal lymphopoietin (TSLP) monoclonal antibody. The liquid preparation comprises an anti-human thymic stromal lymphopoietin (TSLP) monoclonal antibody and an amino acid protection agent, wherein the protein concentration of the anti-human thymic stromal lymphopoietin (TSLP) monoclonal antibody is 100-300mg/ml, the amino acid concentration of the amino acid protection agent is 10-500mM, the monoclonal antibody comprises three heavy chain complementarity determining regions (CDR-H1, CDR-H2 and CDR-H3) and three light chain complementarity determining regions (CDR-L1, CDR-L2 and CDR-L3), the amino acid sequence of the CDR-H1 is as shown in SEQ ID NO: 1, the amino acid sequence of the CDR-H2 is as shown in SEQ ID NO: 2, the amino acid sequence of the CDR-H3 is as shown in SEQ ID NO: 3, the amino acid sequence of the CDR-L1 is as shown in SEQ ID NO: 4, the amino acid sequence of the CDR-L2 is as shown in SEQ ID NO: 5, and the amino acid sequence of the CDR-L3 is as shown in SEQ ID NO: 6. The liquid preparation disclosed by the invention is relatively low in viscosity and can be easily injected by a syringe, so that the liquid preparation can be used as an injection, especially a hypodermic injection.

The invention discloses a polyethylene glycol modified human thymosin beta 4 tandem repeat protein (PEG-rTbeta4), as well as a preparation method and application thereof. The PEG-rTbeta4 is obtained after recombinant human thymosin beta 4 tandem repeat protein is subjected to specific chemical modification with polyethylene glycol, wherein the rTbeta4 has gene sequence codes connected in the following sequence: a HKCDI gene sequence, a thymosin beta4 gene sequence, a GS Linker GSGSG-thymosin beta4 gene sequence and a 6*His label gene sequence. Furthermore, the invention discloses a method forpreparing the protein. The preparation method can be used for preparing target protein having the purity of 90 percent or more, has the advantages of low cost, high bioactivity and the like, and is simple and quick. Experiments prove that the PEG-rTbeta4 protein has the effects of promoting proliferation and migration of myocardial cells, resisting apoptosis, promoting hair growth and angiogenesisand accelerating wound healing. Therefore, the PEG-rTbeta4 protein has a wide application prospect in heart function recovery after myocardial infarction, hair growth promotion and wound healing acceleration.

The invention provides the novel thymus-specific human protein T101, an 84-amino acid polypeptide isolated from the human thymus. The full T101 peptide contains a 33-amino acid signal peptide and a 51-amino acid T101 peptide sequence with both immune stimulatory and inhibitory activities. Also provided are modified peptides and partial T101 peptide sequences.

The invention discloses a method of in-vitro recombinant expression of human thymus activation regulated chemokine TARC/CCL17. In the method, human TARC/CCL17 protein is obtained through fusion expression of escherichia coli; then by means of protease digestion, affinity chromatography, gel chromatography and ion-exchange column chromatography, the expression product is purified to obtain pure human TARC/CCL17 protein. The method achieves massive soluble expression of the human TARC/CCL17 protein, which can be used as an ELISA standard substance. The method greatly reduces production cost anddifficulty of the TARC/CCL17 protein.