PMID- 22293775 OWN - NLM STAT- MEDLINE DCOM- 20120601 LR - 20211021 IS - 1791-3004 (Electronic) IS - 1791-2997 (Print) IS - 1791-2997 (Linking) VI - 5 IP - 4 DP - 2012 Apr TI - gamma-Tocotrienol attenuates TNF-alpha-induced changes in secretion and gene expression of MCP-1, IL-6 and adiponectin in 3T3-L1 adipocytes. PG - 905-9 LID - 10.3892/mmr.2012.770 [doi] AB - Tocotrienols, members of the vitamin E family, have been shown to possess anti-inflammatory properties and display activity against a variety of chronic diseases, such as cancer, cardiovascular and neurological diseases. However, whether tocotrienols contribute to the prevention of inflammatory responses in adipose tissue remains to be elucidated. In this study, we examined the effects of gamma-tocotrienol, the most common tocotrienol isomer, on tumor necrosis factor-alpha (TNF-alpha)-induced inflammatory responses by measuring the expression of the adipokines, monocyte chemoattractant protein-1 (MCP-1), interleukin-6 (IL-6) and adiponectin in 3T3-L1 adipocytes. Exposure to TNF-alpha (10 ng/ml) for 24 h increased MCP-1 and IL-6 secretion, and decreased adiponectin secretion and peroxisome proliferator-activated receptor-gamma (PPARgamma) mRNA expression. gamma-tocotrienol effectively improved the TNF-alpha-induced adverse changes in MCP-1, IL-6 and adiponectin secretion, and in MCP-1, IL-6, adiponectin and PPARgamma mRNA expression. Furthermore, TNF-alpha-mediated IkappaB-alpha phosphorylation and nuclear factor-kappaB (NF-kappaB) activation were significantly suppressed by the gamma-tocotrienol treatment. Our results suggest that gamma-tocotrienol may improve obesity-related functional abnormalities in adipocytes by attenuating NF-kappaB activation and the expression of inflammatory adipokines. FAU - Matsunaga, Tetsuro AU - Matsunaga T AD - Ajinomoto Integrative Research for Advanced Dieting, Graduate School of Agriculture, Kyoto University, Kyoto, Japan. FAU - Shoji, Ayae AU - Shoji A FAU - Gu, Ning AU - Gu N FAU - Joo, Erina AU - Joo E FAU - Li, Shiho AU - Li S FAU - Adachi, Tetsuya AU - Adachi T FAU - Yamazaki, Hanae AU - Yamazaki H FAU - Yasuda, Koichiro AU - Yasuda K FAU - Kondoh, Takashi AU - Kondoh T FAU - Tsuda, Kinsuke AU - Tsuda K LA - eng PT - Journal Article DEP - 20120130 PL - Greece TA - Mol Med Rep JT - Molecular medicine reports JID - 101475259 RN - 0 (Adiponectin) RN - 0 (Ccl2 protein, mouse) RN - 0 (Chemokine CCL2) RN - 0 (Chromans) RN - 0 (Interleukin-6) RN - 0 (NF-kappa B) RN - 0 (PPAR gamma) RN - 0 (Tumor Necrosis Factor-alpha) RN - 0 (Vitamins) RN - 1406-18-4 (Vitamin E) RN - 4382-43-8 (plastochromanol 8) RN - EC 2.7.11.10 (I-kappa B Kinase) SB - IM MH - 3T3-L1 Cells MH - Adipocytes/*drug effects/metabolism MH - Adiponectin/genetics/*metabolism MH - Animals MH - Chemokine CCL2/genetics/*metabolism MH - Chromans/*pharmacology MH - Gene Expression Regulation/*drug effects MH - I-kappa B Kinase/metabolism MH - Interleukin-6/genetics/*metabolism MH - Mice MH - NF-kappa B/metabolism MH - PPAR gamma/genetics/metabolism MH - Phosphorylation MH - Tumor Necrosis Factor-alpha/*pharmacology MH - Vitamin E/*analogs & derivatives/pharmacology MH - Vitamins/pharmacology PMC - PMC3493080 EDAT- 2012/02/02 06:00 MHDA- 2012/06/02 06:00 PMCR- 2013/04/01 CRDT- 2012/02/02 06:00 PHST- 2011/08/23 00:00 [received] PHST- 2011/12/22 00:00 [accepted] PHST- 2012/02/02 06:00 [entrez] PHST- 2012/02/02 06:00 [pubmed] PHST- 2012/06/02 06:00 [medline] PHST- 2013/04/01 00:00 [pmc-release] AID - mmr-05-04-0905 [pii] AID - 10.3892/mmr.2012.770 [doi] PST - ppublish SO - Mol Med Rep. 2012 Apr;5(4):905-9. doi: 10.3892/mmr.2012.770. Epub 2012 Jan 30.