Scientists pinpoint molecule that controls stem cell plasticity by boosting gene expression

Stem cells can have a strong sense of identity. Taken out of their home in the hair follicle, for example, and grown in culture, these cells remain true to themselves. After waiting in limbo, these cultured cells become capable of regenerating follicles and other skin structures once transplanted back into skin. It's not clear just how these stem cells -- and others elsewhere in the body -- retain their ability to produce new tissue and heal wounds, even under extraordinary conditions.

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