An aptamer-drug conjugate for promising cancer therapy with comprehensive evaluation from rodents to non-human primates.

ABSTRACT: Aptamers serve as unique targeting ligands, making aptamer-drug conjugates (ApDCs) an attractive strategy for targeted cancer therapy. This study performs a comprehensive evaluation from rodents to non-human primates (NHP) of a protein tyrosine kinase 7 (PTK7)-targeted ApDC (Sgc8c-M) made by conjugating the potent antimitotic agent monomethyl auristatin E (MMAE) to the classic PTK7 aptamer Sgc8c. Efficacy studies in various cancer types with PTK7 overexpression showed that Sgc8c-M effectively induces sustained tumor regression in cell line-derived and patient-derived xenografts, outperforming unconjugated MMAE, the chemotherapy drug paclitaxel, and a PTK7-targeted antibody-drug conjugate. Pharmacokinetic (PK) studies in mice revealed that Sgc8c-M leads to rapid accumulation and sustained M

SUBMITTER: Su M 

PROVIDER: S-EPMC12457637 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature