PMID- 23284171 OWN - NLM STAT- MEDLINE DCOM- 20130409 LR - 20211203 IS - 1091-6490 (Electronic) IS - 0027-8424 (Print) IS - 0027-8424 (Linking) VI - 110 IP - 6 DP - 2013 Feb 5 TI - Loss of the repressor REST in uterine fibroids promotes aberrant G protein-coupled receptor 10 expression and activates mammalian target of rapamycin pathway. PG - 2187-92 LID - 10.1073/pnas.1215759110 [doi] AB - Uterine fibroids (leiomyomas) are the most common tumors of the female reproductive tract, occurring in up to 77% of reproductive-aged women, yet molecular pathogenesis remains poorly understood. A role for atypically activated mammalian target of rapamycin (mTOR) pathway in the pathogenesis of uterine fibroids has been suggested in several studies. We identified that G protein-coupled receptor 10 [GPR10, a putative signaling protein upstream of the phosphoinositide 3-kinase-protein kinase B/AKT-mammalian target of rapamycin (PI3K/AKT-mTOR) pathway] is aberrantly expressed in uterine fibroids. The activation of GPR10 by its cognate ligand, prolactin releasing peptide, promotes PI3K-AKT-mTOR pathways and cell proliferation specifically in cultured primary leiomyoma cells. Additionally, we report that RE1 suppressing transcription factor/neuron-restrictive silencing factor (REST/NRSF), a known tumor suppressor, transcriptionally represses GPR10 in the normal myometrium, and that the loss of REST in fibroids permits GPR10 expression. Importantly, mice overexpressing human GPR10 in the myometrium develop myometrial hyperplasia with excessive extracellular matrix deposition, a hallmark of uterine fibroids. We demonstrate previously unrecognized roles for GPR10 and its upstream regulator REST in the pathogenesis of uterine fibroids. Importantly, we report a unique genetically modified mouse model for a gene that is misexpressed in uterine fibroids. FAU - Varghese, Binny V AU - Varghese BV AD - Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, KS 66160, USA. FAU - Koohestani, Faezeh AU - Koohestani F FAU - McWilliams, Michelle AU - McWilliams M FAU - Colvin, Arlene AU - Colvin A FAU - Gunewardena, Sumedha AU - Gunewardena S FAU - Kinsey, William H AU - Kinsey WH FAU - Nowak, Romana A AU - Nowak RA FAU - Nothnick, Warren B AU - Nothnick WB FAU - Chennathukuzhi, Vargheese M AU - Chennathukuzhi VM LA - eng SI - GEO/GSE41386 GR - P01 HD057877/HD/NICHD NIH HHS/United States GR - P20 GM103418/GM/NIGMS NIH HHS/United States GR - P20 RR016475/RR/NCRR NIH HHS/United States GR - P01HD057877/HD/NICHD NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20130102 PL - United States TA - Proc Natl Acad Sci U S A JT - Proceedings of the National Academy of Sciences of the United States of America JID - 7505876 RN - 0 (PRLHR protein, human) RN - 0 (RE1-silencing transcription factor) RN - 0 (RNA, Small Interfering) RN - 0 (Receptors, G-Protein-Coupled) RN - 0 (Recombinant Proteins) RN - 0 (Repressor Proteins) RN - EC 2.7.1.1 (MTOR protein, human) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) SB - IM CIN - Proc Natl Acad Sci U S A. 2013 Feb 5;110(6):1980-1. PMID: 23355686 MH - Animals MH - Base Sequence MH - Disease Models, Animal MH - Female MH - Gene Expression MH - Gene Knockdown Techniques MH - Gene Regulatory Networks MH - Humans MH - Leiomyoma/genetics/*metabolism/pathology MH - Mice MH - Mice, Transgenic MH - RNA, Small Interfering/genetics MH - Receptors, G-Protein-Coupled/genetics/*metabolism MH - Recombinant Proteins/genetics/metabolism MH - Repressor Proteins/antagonists & inhibitors/genetics/*metabolism MH - Signal Transduction MH - TOR Serine-Threonine Kinases/*metabolism MH - Tumor Cells, Cultured MH - Uterine Neoplasms/genetics/*metabolism/pathology PMC - PMC3568308 COIS- The authors declare no conflict of interest. EDAT- 2013/01/04 06:00 MHDA- 2013/04/10 06:00 PMCR- 2013/01/02 CRDT- 2013/01/04 06:00 PHST- 2013/01/04 06:00 [entrez] PHST- 2013/01/04 06:00 [pubmed] PHST- 2013/04/10 06:00 [medline] PHST- 2013/01/02 00:00 [pmc-release] AID - 1215759110 [pii] AID - 201215759 [pii] AID - 10.1073/pnas.1215759110 [doi] PST - ppublish SO - Proc Natl Acad Sci U S A. 2013 Feb 5;110(6):2187-92. doi: 10.1073/pnas.1215759110. Epub 2013 Jan 2.