title: There and back again: hair follicle stem cell dynamics.
abstract: Recently in Cell, Hsu et al. (2011) defined the relationship between stem cells and differentiated progeny within a hair follicle lineage. Their work reveals that stem cell descendants that have migrated out of the bulge can return to this niche and actively contribute to its function.
authors.affiliation: Department of Dermatology, Columbia University, New York, NY 10032, USA.
authors.forename: Katherine A
authors.initials: KA
authors.lastname: Fantauzzo
authors.forename: Angela M
authors.initials: AM
authors.lastname: Christiano