Distinct p21 dynamics drive alternative routes to whole-genome duplication through a common CDK4/6-dependent polyploid G0 state
Yian Yang, Anuraag Bukkuri, Dante Poe, Janet McLaughlin, Sihan Hao, Daniel D. Brown, Katarzyna M. Kedziora, Wayne Stallaert
The paper identifies two distinct p21-driven pathways to whole-genome duplication in breast cancer cells, both converging on a CDK4/6-dependent polyploid G0 state, and shows that CDK4/6 inhibitors can block WGD and enhance therapy efficacy.
bioRxiv · Jan 15, 2026 · PreprintCell Biology