PMID- 7750569 OWN - NLM STAT- MEDLINE DCOM- 19950622 LR - 20190621 IS - 0014-5793 (Print) IS - 0014-5793 (Linking) VI - 364 IP - 2 DP - 1995 May 8 TI - Transforming growth factor beta 1 induces differentiation-specific gene expression in fetal rat brown adipocytes. PG - 193-7 AB - Fetal rat brown adipocytes show a low number of transforming growth factor beta 1 (TGF-beta 1) binding sites of high affinity, revealing the presence of type I, II and III TGF-beta 1 receptors and a minor-labeled species of approximately 140 kDa. The culture of cells in the presence of TGF-beta 1 induced the expression of the tissue-specific gene uncoupling protein in a dose- and time-dependent manner. In addition, TGF-beta 1 up-regulates the expression of genes involved in adipogenesis such as fatty acid synthase, glycerol 3-phosphate dehydrogenase, malic enzyme and glucose 6-phosphate dehydrogenase, as well as induces the expression of fibronectin (specific target gene for TGF-beta 1). Our results suggest that TGF-beta 1 is a major signal involved in initiating and/or maintaining the thermogenic and adipogenic differentiation of rat fetal brown adipocytes. FAU - Teruel, T AU - Teruel T AD - Departamento de Bioquimica y Biologia Molecular, Facultad de Farmacia, Universidad Complutense, Madrid, Spain. FAU - Valverde, A M AU - Valverde AM FAU - Benito, M AU - Benito M FAU - Lorenzo, M AU - Lorenzo M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - FEBS Lett JT - FEBS letters JID - 0155157 RN - 0 (Carrier Proteins) RN - 0 (Fibronectins) RN - 0 (Ion Channels) RN - 0 (Membrane Proteins) RN - 0 (Mitochondrial Proteins) RN - 0 (RNA, Messenger) RN - 0 (Receptors, Transforming Growth Factor beta) RN - 0 (Transforming Growth Factor beta) RN - 0 (Uncoupling Agents) RN - 0 (Uncoupling Protein 1) SB - IM MH - Adipose Tissue, Brown/cytology/*drug effects/metabolism MH - Animals MH - Carrier Proteins/genetics MH - Cell Differentiation/drug effects/genetics MH - Cells, Cultured MH - Fetus MH - Fibronectins/genetics MH - Gene Expression/drug effects MH - Ion Channels MH - Kinetics MH - Lipid Metabolism MH - Membrane Proteins/genetics MH - Mitochondrial Proteins MH - RNA, Messenger/genetics/metabolism MH - Rats MH - Receptors, Transforming Growth Factor beta/drug effects/metabolism MH - Transforming Growth Factor beta/metabolism/*pharmacology MH - Uncoupling Agents/metabolism MH - Uncoupling Protein 1 MH - Up-Regulation/drug effects EDAT- 1995/05/08 00:00 MHDA- 1995/05/08 00:01 CRDT- 1995/05/08 00:00 PHST- 1995/05/08 00:00 [pubmed] PHST- 1995/05/08 00:01 [medline] PHST- 1995/05/08 00:00 [entrez] AID - 0014-5793(95)00385-M [pii] AID - 10.1016/0014-5793(95)00385-m [doi] PST - ppublish SO - FEBS Lett. 1995 May 8;364(2):193-7. doi: 10.1016/0014-5793(95)00385-m.