Single-chain, multiple antigen forming molecule, its manufacture and use

摘要

Single-chain molecule (I) that binds multiple antigens comprises two variable domains of heavy immunoglobulin chains (VH), having specificities A and B and two variable domains of light chains (VL), also with specificities A and B. The domains are provided as two VH-VL constructs which are attached via a peptide (P). Any VH and VL may be replaced by their functional fragments. Independent claims are also included for the following: (1) nucleic acid (II) encoding (I); (2) vectors containing (II); (3) cells containing (II) or the vectors; (4) recombinant production of (I) by culturing these cells; (5) pharmaceutical composition containing (I), (II), the vectors or cells; and (6) diagnostic composition containing (I). ACTIVITY : Anticancer; antiviral; antibacterial; antimalarial; antiinflammatory. MECHANISM OF ACTION : Specific binding interaction.