144 results about "Claudin" patented technology

The invention provides isolated monoclonal antibodies that specifically bind to human Claudin 18.2. Nucleic acid molecules for encoding the antibodies, as well as expression vectors, host cells and methods for expressing the antibodies are also provided. The invention also provides immunoconjugates, bispecific molecules, chimeric antigen receptors, oncolytic viruses and pharmaceutical compositionscomprising the antibodies, and methods for diagnosis or treatment using the antibodies.

The invention relates to the field of biomedicine, in particular to an anti-human claudin 18.2 monoclonal antibody and application thereof. The antibody has three heavy chain complementary determiningregions (heavy chain CDR1, heavy chain CDR2, heavy chain CDR3) and three light chain complementary determining regions (light chain CDR1, light chain CDR2, light chain CDR3), and has good specificity, high affinity and stability.

The present invention provides Claudin-18.2-specific immunoreceptors (T cell receptors and artificial T cell receptors (chimeric antigen receptors; CARs)) and T cell epitopes which are useful for immunotherapy.

The present invention provides monoclonal antibodies that specifically bind to the extracellular domain of human Claudin-1 on the cell surface, thereby inhibiting HCV entry into susceptible cells and preventing HCV infection of these cells; and hybridoma cell lines which produce such monoclonal antibodies. Also provided are reagents that comprise such antibodies, and pharmaceutical compositions comprising such antibodies. Methods of treating or preventing HCV infection by administration of an inventive monoclonal antibody, or a pharmaceutical composition thereof are also described.

An object of the present invention is to provide a monoclonal antibody which is useful as a diagnostic agent or a therapeutic agent for a disease relating to a polypeptide encoded by Claudin-4 (hereinafter referred to as “CLDN4”) gene or a polypeptide encoded by a Claudin-3 (hereinafter referred to as “CLDN3”) gene, or a method for using the same. Accordingly, the present invention provides a monoclonal antibody or an antibody fragment thereof, which specifically recognizes three-dimensional structure of an extracellular region of CLDN4 and binds to the extracellular region; a monoclonal antibody or an antibody fragment thereof, which specifically recognizes three-dimensional structure of both of extracellular regions of CLDN3 and CLDN4 and binds to the extracellular regions; a hybridoma which produces the antibody; a DNA which encodes the antibody; a vector which comprises the DNA; a transformant obtained by transforming the vector; a process for producing an antibody or an antibody fragment thereof using the hybridoma or the transformant; and a diagnostic agent or a therapeutic agent for a disease relating to a polypeptide encoded by CLDN4 gene and / or CLDN3 gene using the antibody or the antibody fragment.