Multispezifisches Reagenz zur selektiven Stimulierung von Zelloberflächenrezeptoren

摘要

The invention relates to a multi-specific reagent (15) comprising at least one first binding site (17) for a cell surface receptor (12) which requires a multimer ligand bond for the stimulation thereof. The reagent (15) comprises a second binding site (16) for a target antigen (14) which is expressed on the same cell (10) as the cell surface receptor (12).