Epidermal Tissue Adapts to Restrain Progenitors Carrying Clonal p53 Mutations

Normal human epidermis harbors p53 mutant clones, very few of which form tumors. Murai et al. track p53 mutant clones as they colonize the epidermis in a transgenic mouse model showing how the tissue adapts to the mutant cells and uncovering distinct roles for physiological UV light exposure.

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