PMID- 21040900 OWN - NLM STAT- MEDLINE DCOM- 20110310 LR - 20240109 IS - 1875-9777 (Electronic) IS - 1934-5909 (Print) IS - 1875-9777 (Linking) VI - 7 IP - 5 DP - 2010 Nov 5 TI - The steroid hormone ecdysone functions with intrinsic chromatin remodeling factors to control female germline stem cells in Drosophila. PG - 581-92 LID - 10.1016/j.stem.2010.10.001 [doi] AB - Steroid hormones are known systemic regulators of multiple normal and cancerous tissues; however, whether or how they impact the fate and function of adult stem cells is unclear. In the Drosophila ovary, insulin signals modulate the proliferation and self-renewal of germline stem cells (GSCs), yet despite evidence that additional systemic factors control GSC activity, these have remained largely unknown. Here, we report that ecdysone, a steroid hormone structurally related to mammalian sex steroids, directly regulates adult GSC proliferation and self-renewal independently of insulin signaling. Ecdysone controls GSCs through a functional interaction with the chromatin remodeling factors ISWI, an intrinsic epigenetic factor required for GSC fate and activity, and Nurf301, the largest subunit of the ISWI-containing NURF chromatin remodeling complex. Our findings support a link between systemic steroid hormones and the intrinsic chromatin remodeling machinery as a potential mechanism to promote broad transcriptional programs required for adult stem cell self-renewal. CI - Copyright (c) 2010 Elsevier Inc. All rights reserved. FAU - Ables, Elizabeth T AU - Ables ET AD - Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA. FAU - Drummond-Barbosa, Daniela AU - Drummond-Barbosa D LA - eng GR - R01 GM069875-05/GM/NIGMS NIH HHS/United States GR - R01 GM069875/GM/NIGMS NIH HHS/United States GR - F32 GM086031/GM/NIGMS NIH HHS/United States GR - R01 GM069875-03/GM/NIGMS NIH HHS/United States GR - T32 DK007563/DK/NIDDK NIH HHS/United States GR - R01 GM069875-04/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Cell Stem Cell JT - Cell stem cell JID - 101311472 RN - 3604-87-3 (Ecdysone) SB - IM MH - Animals MH - Cell Cycle/physiology MH - Cell Proliferation MH - Cells, Cultured MH - Chromatin Assembly and Disassembly/*genetics MH - *Drosophila MH - Ecdysone/genetics/*metabolism/*pharmacology MH - Female MH - Fluorescent Antibody Technique MH - Germ Cells/cytology/*metabolism MH - Signal Transduction MH - Stem Cells/cytology/*metabolism PMC - PMC3292427 MID - NIHMS245613 COIS- The authors declare no competing conflicts of interest. EDAT- 2010/11/03 06:00 MHDA- 2011/03/11 06:00 PMCR- 2012/03/02 CRDT- 2010/11/03 06:00 PHST- 2010/02/19 00:00 [received] PHST- 2010/08/12 00:00 [revised] PHST- 2010/10/06 00:00 [accepted] PHST- 2010/11/03 06:00 [entrez] PHST- 2010/11/03 06:00 [pubmed] PHST- 2011/03/11 06:00 [medline] PHST- 2012/03/02 00:00 [pmc-release] AID - S1934-5909(10)00514-X [pii] AID - 10.1016/j.stem.2010.10.001 [doi] PST - ppublish SO - Cell Stem Cell. 2010 Nov 5;7(5):581-92. doi: 10.1016/j.stem.2010.10.001.