PT - JOURNAL ARTICLE AU - Jingwen Bai AU - Yaochen Li AU - Guojun Zhang TI - Cell cycle regulation and anticancer drug discovery AID - 10.20892/j.issn.2095-3941.2017.0033 DP - 2017 Nov 01 TA - Cancer Biology and Medicine PG - 348--362 VI - 14 IP - 4 4099 - http://www.cancerbiomed.org/content/14/4/348.short 4100 - http://www.cancerbiomed.org/content/14/4/348.full SO - Cancer Biol Med2017 Nov 01; 14 AB - Cellular growth, development, and differentiation are tightly controlled by a conserved biological mechanism: the cell cycle. This cycle is primarily regulated by cyclin-dependent kinase (CDK)-cyclin complexes, checkpoint kinases, and CDK inhibitors. Deregulation of the cell cycle is a hallmark of the transformation of normal cells into tumor cells. Given its importance in tumorigenesis, several cell cycle inhibitors have emerged as potential therapeutic drugs for the treatment of cancers-both as single-agent therapy and in combination with traditional cytotoxic or molecular targeting agents. In this review, we discuss the mechanisms underlying cell cycle regulation and present small-molecule anticancer drugs that are under development, including both pan-CDK inhibitors and CDK4/6-selective inhibitors. In addition, we provide an outline of some promising CDK inhibitors currently in preclinical and clinical trials that target cell cycle abnormalities in various cancers.