Skin moles that sprout thick, long hairs produce signaling molecules that stimulate hair follicle stem cells to initiate new hair growth. This discovery may make baldness a thing of the past.
Urinary tract infections leave permanent epigenetic marks in the mouse bladder epithelium, reprogramming its response to subsequent infections, a study finds.
Rounds of trial-and-error exploring the layer of cells covering the ovary leave open questions about stem cells that are associated with ovarian cancer.