M6903 is a humanized monoclonal IgG2 antibody targeting T cell immunoglobulin and mucin domain-3 (TIM-3) (KD for human TIM-3 is 2.3 nM) . M6903 binds to TIM-3, blocking the binding of TIM-3 to phosphatidylserine (PtdSer), carcinoembryonic antigen cell adhesion-related molecule 1 (CEACAM1), and galectin 9 (Gal-9), thus relieving TIM-3-mediated T cell inhibition and exerting the activities of activating antigen-specific T cells and enhancing anti-tumor immunity. M6903 is promising for research of cancers[1].
