Discovery of naphthacemycins as a novel class of PARP1 inhibitors

Autor: Mu Yunlong, Xinhua Lu, Xuexia Zhang, Gao Jian, Jingtong Zhu, Zhihui Zheng, Xu Yan, Shen Wenbin
Rok vydání: 2019
Předmět:
Zdroj: Bioorganic & Medicinal Chemistry Letters. 29:1904-1908
ISSN: 0960-894X
DOI: 10.1016/j.bmcl.2019.05.055
Popis: Poly (ADP-ribose) polymerase-1 (PARP-1) is an abundant nuclear protein that plays important roles in a variety of nuclear processes, and it has been proved a prominent target in oncology for its key function in DNA damage repair. In this study, we discovered a series of naphthacemycins as a new class of PARP1 inhibitors from a microbial metabolites library via high-throughput screening. Compound I, one of this series of compounds, could reduce cellular poly (ADP-ribose) level, trap PARP1 on the damaged DNA and elevate the level of γ-H2AX, and showed the selective cytotoxicity against BRCA1-deficient cell line. Our study provided a potential scaffold for the development of new PARP1 inhibitors in cancer therapy.
Databáze: OpenAIRE