Targeting CDK2 for cancer therapy

Abstract

Targeting cell-cycle regulatory processes by inhibiting cyclin-dependent kinases (CDKs) has long been considered a significant therapeutic strategy for oncology. Recent studies have highlighted the complexity of targeting CDK2 for cancer therapy. Unlike CDK4/6 inhibitors, CDK2 inhibitors can impact different phases of the cell cycle by modulating distinct effector pathways, and the response to CDK2 inhibitors is controlled by the genetic and epigenetic makeup of the tumor. Biomarkers have emerged that can inform the effective use of these drugs and include cyclin E and p16INK4A. Work across several different tumor types indicates that CDK2 inhibitors can be combined effectively with various drug classes. However, more investigation is needed to understand the potential limitations and drug toxicities of existing CDK2 inhibitors and those in development.

Keywords: CDK inhibitors; CDK2; CDK4/6; CDKN2A; CP: Cancer; RB; cell cycle; cyclin D1; cyclin E; p16IN4A.