title: A family business: stem cell progeny join the niche to regulate homeostasis.
abstract: Stem cell niches, the discrete microenvironments in which the stem cells reside, play a dominant part in regulating stem cell activity and behaviours. Recent studies suggest that committed stem cell progeny become indispensable components of the niche in a wide range of stem cell systems. These unexpected niche inhabitants provide versatile feedback signals to their stem cell parents. Together with other heterologous cell types that constitute the niche, they contribute to the dynamics of the microenvironment. As progeny are often located in close proximity to stem cell niches, similar feedback regulations may be the underlying principles shared by different stem cell systems.
authors.affiliation: Howard Hughes Medical Institute and Laboratory of Mammalian Cell Biology & Development, The Rockefeller University, 1230 York Avenue, Box 300, New York, New York         10065, USA.
authors.forename: Ya-Chieh
authors.initials: YC
authors.lastname: Hsu
authors.forename: Elaine
authors.initials: E
authors.lastname: Fuchs
mesh_terms: D000818:Animals; D002455:Cell Division / Q000235:genetics / Q000502:physiology; D002465:Cell Movement / Q000235:genetics / Q000502:physiology; D004331:Drosophila melanogaster / Q000166:cytology / Q000235:genetics / Q000502:physiology; D006706:Homeostasis / Q000235:genetics / Q000502:physiology*; D006801:Humans; D008954:Models, Biological; D009928:Organ Specificity / Q000235:genetics / Q000502:physiology; D015398:Signal Transduction / Q000235:genetics / Q000502:physiology; D055153:Stem Cell Niche / Q000235:genetics / Q000502:physiology; D013234:Stem Cells / Q000166:cytology* / Q000502:physiology*