2141-V11 - HY-P991525

2141-V11 is an Fc-engineered agonistic antibody against human CD40 with selectively enhanced binding affinity for human FcγRIIB. 2141-V11 drives CD40 multimerization and agonistic signal transduction, activates dendritic cells, promotes antigen cross-presentation and CD8+ T cell priming, induces tertiary lymphoid structure formation, increases leukocyte infiltration, and mediates local and abscopal anti-tumor effects, systemic immune activation and immune memory. 2141-V11 exhibits extremely low systemic toxicity upon intratumoral or intravesical administration, with no dose-limiting toxicity observed at the tested intratumoral doses, whereas high-dose systemic administration induces thrombocytopenia and elevated transaminases. 2141-V11 can be used in research related to breast cancer, melanoma, BCG-unresponsive non-muscle invasive bladder cancer, and recurrent malignant glioma[1][2][3][4].