Stochasticity in mammalian cell growth rates drives cell-to-cell variability independently of cell size and divisions

Proceedings of the National Academy of Sciences, Volume 123, Issue 10, March 2026. <br/>SignificanceGenetically identical cells can grow at different rates. This cell-to-cell growth variability can influence, for example, tumor biology, drug efficacy, and immune responses. Yet, the origin of this variability among genetically identical cells …