PMID- 21402747 OWN - NLM STAT- MEDLINE DCOM- 20110524 LR - 20220321 IS - 1540-9538 (Electronic) IS - 0022-1007 (Print) IS - 0022-1007 (Linking) VI - 208 IP - 3 DP - 2011 Mar 14 TI - The bone marrow stem cell niche grows up: mesenchymal stem cells and macrophages move in. PG - 421-8 LID - 10.1084/jem.20110132 [doi] AB - Stem cell niches are defined as the cellular and molecular microenvironments that regulate stem cell function together with stem cell autonomous mechanisms. This includes control of the balance between quiescence, self-renewal, and differentiation, as well as the engagement of specific programs in response to stress. In mammals, the best understood niche is that harboring bone marrow hematopoietic stem cells (HSCs). Recent studies have expanded the number of cell types contributing to the HSC niche. Perivascular mesenchymal stem cells and macrophages now join the previously identified sinusoidal endothelial cells, sympathetic nerve fibers, and cells of the osteoblastic lineage to form similar, but distinct, niches that harbor dormant and self-renewing HSCs during homeostasis and mediate stem cell mobilization in response to granulocyte colony-stimulating factor. FAU - Ehninger, Armin AU - Ehninger A AD - Division of Stem Cells and Cancer, German Cancer Research Center, D-69120 Heidelberg, Germany. FAU - Trumpp, Andreas AU - Trumpp A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review PL - United States TA - J Exp Med JT - The Journal of experimental medicine JID - 2985109R RN - 143011-72-7 (Granulocyte Colony-Stimulating Factor) SB - IM CIN - Chow et al. CIN - Christopher et al. MH - Animals MH - Bone Marrow/*growth & development/physiology MH - Granulocyte Colony-Stimulating Factor/physiology MH - Humans MH - Macrophages/*physiology MH - Mesenchymal Stem Cells/*physiology MH - Monocytes/physiology MH - Stem Cell Niche/*cytology/physiology PMC - PMC3058583 EDAT- 2011/03/16 06:00 MHDA- 2011/05/25 06:00 PMCR- 2011/09/14 CRDT- 2011/03/16 06:00 PHST- 2011/03/16 06:00 [entrez] PHST- 2011/03/16 06:00 [pubmed] PHST- 2011/05/25 06:00 [medline] PHST- 2011/09/14 00:00 [pmc-release] AID - jem.20110132 [pii] AID - 20110132 [pii] AID - 10.1084/jem.20110132 [doi] PST - ppublish SO - J Exp Med. 2011 Mar 14;208(3):421-8. doi: 10.1084/jem.20110132.