European Journal of Medicinal Chemistry p. 263 - 279 (2017)
Update date:2022-08-28
Topics:
Zhang, Xiaojie
Guo, Shanchun
Chen, Chengsheng
Perez, German Ruiz
Zhang, Changde
Patanapongpibul, Manee
Subrahmanyam, Nithya
Wang, Rubing
Keith, Joshua
Chen, Guanglin
Dong, Yan
Zhang, Qiang
Zhong, Qiu
Zheng, Shilong
Wang, Guangdi
Chen, Qiao-Hong
To further engineer dienones with optimal combinations of potency and bioavailability, thirty-four asymmetric 1,5-diarylpenta-1,4-dien-3-ones (25–58) have been designed and synthesized for the evaluation of their in vitro anti-proliferative activity in three human prostate cancer cell lines and one non-neoplastic prostate epithelial cell line. All these asymmetric dienones are sufficiently more potent than curcumin and their corresponding symmetric counterparts. The optimal dienone 58, with IC50 values in the range of 0.03–0.12 μM, is 636-, 219-, and 454-fold more potent than curcumin in three prostate cancer cell models. Dienones 28 and 49 emerged as the most promising asymmetric dienones that warrant further preclinical studies. The two lead compounds demonstrated substantially improved potency in cell models and superior bioavailability in rats, while exhibiting no acute toxicity in the animals at the dose of 10 mg/kg. Dienones 28 and 46 can induce PC-3 cell cycle regulation at the G0/G1 phase. However, dienone 28 induces PC-3 cell death in a different way from 46 even though they share the same scaffold, indicating that terminal heteroaromatic rings are critical to the action of mechanism for each specific dienone.
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