A study addressing the complex regulation of HSCs, highlights p21’s multifunctional nature beyond cell cycle control. Through the use of p21-tdTomato mice, researchers differentiate between p21-tdT+ and p21-tdT− HSCs. A study addressing the complex regulation of HSCs, highlights p21’s multifunctional nature beyond cell cycle control. Through the use of p21-tdTomato mice, researchers differentiate between p21-tdT+ and p21-tdT− HSCs. Cell & Microbiology Molecular & Computational biology Phys.org – latest science and technology news stories