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94 results about "Anti vegf antibody" patented technology

Anti-VEGF Antibody is a non-therapeutic biosimilar of the monoclonal antibody drug bevacizumab (Avastin) for research use. It can be used in bioanalytical PK and ADA assays and for studying biological pathways affected by the drug.

Human anti-vascular endothelial cell growth factor antibody and application thereof

The invention provides a human anti-vascular endothelial cell growth factor (VEGF) antibody as well as a coding gene and an application thereof. According to the invention, by virtue of genetic engineering means and a phage surface display technology, an anti-VEGF genetic engineering single-chain antibody is screened from a complete synthesis single-chain human antibody library, a variable region gene sequence of the anti-VEGF genetic engineering single-chain antibody is obtained, amino acids in a CDR (complementary determining region) of the anti-VEGF genetic engineering single-chain antibody are transformed by virtue of bioinformatics means, and finally a series of high-affinity anti-VEGF antibodies are obtained by constructing and screening mutation libraries and utilizing a chain exchange method, wherein affinity of the anti-VEGF antibodies with human VEGF is 10<-9>-10<-11>M. According to the invention, identification on immunocompetence and biological activity of the antibody is completed, the anti-VEGF antibody is verified to have the characteristic of being antagonistic to combination of VEGF and VEGFR2 and can effectively inhibit proliferation of vascular endothelial cells induced by VEGF. The invention provides a new specific candidate antibody molecule for resisting tumour and senile macular degeneration targeted by VEGF in future.
Owner:SHANGHAI SERUM BIOTECH
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