Anti-TROP-2/MMAE Antibody-drug Conjugate LCB84

**Semantic type:** Pharmacologic Substance

**Definition:** An antibody-drug conjugate (ADC) composed of Hu2G10, a humanized immunoglobulin G1 (IgG1) monoclonal antibody that targets the tumor-associated antigen (TAA) trophoblast cell surface protein 2 (trophoblast antigen 2; calcium signal transducer 2; TROP2; TROP-2; TACSTD2; GA733-1; M1S1), conjugated via a beta-glucuronidase-cleavable linker to monomethyl auristatin E (MMAE), an auristatin derivative and a potent microtubule disrupting agent, with potential antineoplastic activity. Upon administration of anti-TROP-2/MMAE ADC LCB84, the anti-TROP-2 antibody targets and binds to TROP-2 expressed on tumor cells. Upon binding and internalization, MMAE is released upon cleavage by the cancer-associated lysosomal enzyme beta-glucuronidase. MMAE binds to tubulin and inhibits its polymerization, resulting in G2/M phase arrest and tumor cell apoptosis. This induces cell death in TROP-2-expressing cancer cells. TROP-2 is a transmembrane protein overexpressed in various tumors. Its expression is associated with enhanced tumor aggressiveness, metastasis, drug resistance and increased tumor cell survival.

**Synonyms:** - Anti-TROP-2/MMAE ADC LCB84 - LCB 84 - LCB-84 - LCB84