PMID- 26229531 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20150803 LR - 20200929 IS - 1687-8337 (Print) IS - 1687-8345 (Electronic) IS - 1687-8337 (Linking) VI - 2015 DP - 2015 TI - Consequence of Menin Deficiency in Mouse Adipocytes Derived by In Vitro Differentiation. PG - 149826 LID - 10.1155/2015/149826 [doi] LID - 149826 AB - Lipoma in patients with the multiple endocrine neoplasia type 1 (MEN1) syndrome is a type of benign fat-cell tumor that has biallelic inactivation of MEN1 that encodes menin and could serve as a model to investigate normal and pathologic fat-cell (adipocyte) proliferation and function. The role of menin and its target genes in adipocytes is not known. We used in vitro differentiation to derive matched normal and menin-deficient adipocytes from wild type (WT) and menin-null (Men1-KO) mouse embryonic stem cells (mESCs), respectively, or 3T3-L1 cells without or with menin knockdown to investigate cell size, lipid content, and gene expression changes. Adipocytes derived from Men1-KO mESCs or after menin knockdown in 3T3-L1 cells showed a 1.5-1.7-fold increase in fat-cell size. Global gene expression analysis of mESC-derived adipocytes showed that lack of menin downregulated the expression of many differentially methylated genes including the tumor suppressor long noncoding RNA Meg3 but upregulated gene expression from the prolactin gene family locus. Our results show that menin deficiency leads to fat-cell hypertrophy and provide model systems that could be used to study the regulation of fat-cell size. FAU - Parekh, Vaishali I AU - Parekh VI AD - Metabolic Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA. FAU - Modali, Sita D AU - Modali SD AD - Metabolic Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA. FAU - Desai, Shruti S AU - Desai SS AD - Metabolic Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA. FAU - Agarwal, Sunita K AU - Agarwal SK AD - Metabolic Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA. LA - eng GR - ZIA DK075035/Intramural NIH HHS/United States PT - Journal Article DEP - 20150702 PL - Egypt TA - Int J Endocrinol JT - International journal of endocrinology JID - 101516376 PMC - PMC4503551 EDAT- 2015/08/01 06:00 MHDA- 2015/08/01 06:01 PMCR- 2015/07/02 CRDT- 2015/08/01 06:00 PHST- 2015/04/03 00:00 [received] PHST- 2015/06/17 00:00 [revised] PHST- 2015/06/18 00:00 [accepted] PHST- 2015/08/01 06:00 [entrez] PHST- 2015/08/01 06:00 [pubmed] PHST- 2015/08/01 06:01 [medline] PHST- 2015/07/02 00:00 [pmc-release] AID - 10.1155/2015/149826 [doi] PST - ppublish SO - Int J Endocrinol. 2015;2015:149826. doi: 10.1155/2015/149826. Epub 2015 Jul 2.