Cell competition: pirates on the tangled bank.
Competition by stem cells for occupation of a limited niche is a well-described phenomenon. Two recent studies highlight competition between hematopoietic stem cells based on p53. These findings have implications for both normal homeostasis and tumorigenesis.
Green
Douglas R
DR
St. Jude Children's Research Hospital, Memphis, TN 38105, USA. Electronic address: douglas.green@stjude.org.