APBC is a novel PD-L1 inhibitor, effectively interrupting the PD-1 PD-L1 interaction by directly binding to PD-L1, presenting the KD and IC50 values at low-micromolar level, displaying superior antitumor efficacy in hPD-L1 knock-in B16F10-bearing mouse model without the induction of observable liver toxicity.
SMPB crosslinker is a heterobifunctional protein crosslinking reagent that is reactive toward sulfhydryl and amino groups. The SMPB protein crosslinker is an extended chain length analog of MBS crosslinker. SMPB crosslinker's spacer arm is non-cleavable.