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JH-RE-06, a potent REV1-REV7 interface inhibitor (IC50=0.78 μM; Kd=0.42 μM), targets REV1 that interacts with the REV7 subunit of POLζ. JH-RE-06 disrupts mutagenic translesion synthesis (TLS) by preventing recruitment of mutagenic POLζ. JH-RE-06 enhances Cisplatin-induced cytotoxicity and improves chemotherapy[1][2]. IC50: 0.78 μM (REV1-REV7)[1]Kd: 0.42 μM (REV1-REV7)[1]

JH-RE-06 unexpectedly induces dimerization of the REV1 CTD at its REV7-binding surface and blocks the REV1-REV7 interaction[1].

JH-RE-06 inhibits mutagenic TLS and enhances cisplatin-induced toxicity in cultured human and mouse cell lines[1]. Co-administration of JH-RE-06 with cisplatin suppresses the growth of xenograft human melanomas in mice[1].

[1]. Wojtaszek JL, et al. A Small Molecule Targeting Mutagenic Translesion Synthesis Improves Chemotherapy. Cell. 2019 Jun 27;178(1):152-159.e11. [2]. REV1-POLς Inhibition Enhances Cisplatin-Induced Cytotoxicity. Cancer Discov. 2019 Aug;9(8):OF17.

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