title: BMP signaling is required for controlling somatic stem cell self-renewal in the Drosophila ovary.
abstract: BMP signaling is essential for promoting self-renewal of mouse embryonic stem cells and Drosophila germline stem cells and for repressing stem cell proliferation in the mouse intestine and skin. However, it remains unknown whether BMP signaling can promote self-renewal of adult somatic stem cells. In this study, we show that BMP signaling is necessary and sufficient for promoting self-renewal and proliferation of somatic stem cells (SSCs) in the Drosophila ovary. BMP signaling is required in SSCs to directly control their maintenance and division, but is dispensable for proliferation of their differentiated progeny. Furthermore, BMP signaling is required to control SSC self-renewal, but not survival. Moreover, constitutive BMP signaling prolongs the SSC lifespan. Therefore, our study clearly demonstrates that BMP signaling directly promotes SSC self-renewal and proliferation in the Drosophila ovary. Our work further suggests that BMP signaling could promote self-renewal of adult stem cells in other systems.
authors.affiliation: Stowers Institute for Medical Research, 1000 East 50(th) Street, Kansas City, Missouri 64110, USA.
authors.forename: Daniel
authors.initials: D
authors.lastname: Kirilly
authors.forename: Eric P
authors.initials: EP
authors.lastname: Spana
authors.forename: Norbert
authors.initials: N
authors.lastname: Perrimon
authors.forename: Richard W
authors.initials: RW
authors.lastname: Padgett
authors.forename: Ting
authors.initials: T
authors.lastname: Xie
mesh_terms: D000818:Animals; D019485:Bone Morphogenetic Proteins / Q000235:genetics / Q000502:physiology*; D002454:Cell Differentiation / Q000502:physiology; D002455:Cell Division / Q000502:physiology; D049109:Cell Proliferation; D004330:Drosophila / Q000196:embryology / Q000235:genetics / Q000378:metabolism*; D029721:Drosophila Proteins / Q000172:deficiency / Q000235:genetics / Q000502:physiology; D005260:Female; D018507:Gene Expression Regulation, Developmental / Q000502:physiology; D008136:Longevity / Q000502:physiology; D008954:Models, Biological; D010053:Ovary / Q000166:cytology / Q000378:metabolism*; D011518:Proto-Oncogene Proteins / Q000172:deficiency / Q000235:genetics / Q000502:physiology; D015398:Signal Transduction / Q000502:physiology*; D013234:Stem Cells / Q000378:metabolism*; D051155:Wnt1 Protein
chemical_list: D019485:Bone Morphogenetic Proteins; D029721:Drosophila Proteins; D011518:Proto-Oncogene Proteins; D051155:Wnt1 Protein; C074622:wg protein, Drosophila