Targeting procaspase-3 with WF-208, a novel PAC-1 derivative, causes selective cancer cell apoptosis

Journal of Cellular and Molecular Medicine
Fangyang WangChunfu Wu

Abstract

Caspase-3 is a critical effector caspase in apoptosis cascade, and is often over-expressed in many cancer tissues. The first synthesized procaspase-3 activator, PAC-1, induces cancer cell apoptosis and exhibits antitumour activity in murine xenograft models. To identify more potent procaspase-3 activators, a series of compounds were designed, synthesized and evaluated for their ability of inducing cancer cell death in culture. Among these compounds, WF-208 stood out by its high cytotoxicity against procaspase-3 overexpressed HL-60 cells. Compared with PAC-1, WF-208 showed higher cytotoxicity in cancer cells and lower toxicity in normal cells. The further investigation described herein showed that WF-208 activated procaspase-3, degraded IAPs (The Inhibitors of apoptosis proteins) and leaded to caspase-3-dependent cell death in tumour cells, which possibly because of the zinc-chelating properties. WF-208 also showed greater antitumour activity than PAC-1 in murine xenograft model. In conclusion, we have discovered WF-208 as a promising procaspase-3 activating compound, with higher activity and higher cell selectivity than PAC-1.

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Citations

Aug 5, 2016·Cancer Chemotherapy and Pharmacology·Yanfen ChenQubo Zhu
Feb 8, 2018·Chemical Biology & Drug Design·Sülünay ParlarErcin Erciyas
Sep 13, 2019·Science Translational Medicine·Ann LinJason M Sheltzer
Jun 26, 2020·The Journal of Pharmacy and Pharmacology·Fang LiQubo Zhu
Sep 29, 2020·Journal of Enzyme Inhibition and Medicinal Chemistry·Le Cong HuanNguyen-Hai Nam
May 9, 2021·Chemical Biology & Drug Design·Poonam YadavAnkur Vaidya
Jul 2, 2019·ACS Chemical Biology·Matthew W BoudreauPaul J Hergenrother

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Methods Mentioned

BETA
xenograft
X-ray
PCR

Software Mentioned

ImageXpress
SPSS11
SPSS
MetaXpress

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