PMID- 17496270 OWN - NLM STAT- MEDLINE DCOM- 20071017 LR - 20210217 IS - 0022-2275 (Print) IS - 0022-2275 (Linking) VI - 48 IP - 8 DP - 2007 Aug TI - CLA differently regulates adipogenesis in stromal vascular cells from porcine subcutaneous adipose and skeletal muscle. PG - 1701-9 AB - Conjugated linoleic acid (CLA), a mixture of isomers of linoleic acid, has previously been shown to be able to decrease porcine subcutaneous (SC) adipose tissue levels while increasing the count of intramuscular (IM) adipose tissue in vivo. However, the underlying mechanisms through which it acts are poorly understood. The objective of this study was to investigate the different effects of CLA on adipogenesis in cultured SC adipose tissue and IM stromal vascular cells obtained from neonatal pigs. As shown here, trans-10, cis-12 CLA decreased the expression of adipocyte-specific genes as well as adipose precursor cell numbers and the accumulation of lipid in cultured SC adipose tissue stromal vascular cells. However, the cis-9, trans-11 CLA did not alter adipogenesis in SC cultures. On the other hand, both CLA isomers increased the expression of adipocyte-specific genes in IM cultures, together with the increasing accumulation of lipid and Oil Red O-stained cells. Collectively, these data show that CLA decreases SC adipose tissue but increases IM adipose tissue by different regulation of adipocyte-specific gene expression. These results suggest that adipogenesis in IM adipocytes differs from that in SC adipocytes. FAU - Zhou, Xuan AU - Zhou X AD - National Key Laboratory of Animal Nutrition, China Agricultural University, Beijing 100094, China. FAU - Li, Defa AU - Li D FAU - Yin, Jingdong AU - Yin J FAU - Ni, Jianjun AU - Ni J FAU - Dong, Bing AU - Dong B FAU - Zhang, Jinxiao AU - Zhang J FAU - Du, Min AU - Du M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20070511 PL - United States TA - J Lipid Res JT - Journal of lipid research JID - 0376606 RN - 0 (Linoleic Acids, Conjugated) SB - IM MH - *Adipogenesis/genetics MH - Animals MH - Cell Proliferation MH - Cells, Cultured MH - Gene Expression Regulation MH - Immunohistochemistry MH - Linoleic Acids, Conjugated/*pharmacology MH - Muscle, Skeletal/blood supply/*cytology/metabolism MH - Stromal Cells/metabolism MH - Subcutaneous Fat/blood supply/*cytology/metabolism MH - Swine EDAT- 2007/05/15 09:00 MHDA- 2007/10/18 09:00 CRDT- 2007/05/15 09:00 PHST- 2007/05/15 09:00 [pubmed] PHST- 2007/10/18 09:00 [medline] PHST- 2007/05/15 09:00 [entrez] AID - S0022-2275(20)42506-4 [pii] AID - 10.1194/jlr.M600525-JLR200 [doi] PST - ppublish SO - J Lipid Res. 2007 Aug;48(8):1701-9. doi: 10.1194/jlr.M600525-JLR200. Epub 2007 May 11.