PMID- 19157828 OWN - NLM STAT- MEDLINE DCOM- 20100201 LR - 20111117 IS - 1873-4847 (Electronic) IS - 0955-2863 (Linking) VI - 21 IP - 1 DP - 2010 Jan TI - Oligomerized grape seed polyphenols attenuate inflammatory changes due to antioxidative properties in coculture of adipocytes and macrophages. PG - 47-54 LID - 10.1016/j.jnutbio.2008.10.003 [doi] AB - Macrophage infiltration of white adipose tissue (WAT) is implicated in the metabolic complications of obesity. In addition, inflammatory changes through dysregulated expression of inflammation-related adipokines such as tumor necrosis factor-alpha (TNF-alpha) and monocyte chemoattractant protein-1 (MCP-1) in WAT are considered to be one of the causes of insulin resistance. Recently, enhanced oxidative stress in adipocytes has been reported to be implicated in dysregulated expression of inflammation-related adipokines. Polyphenols are well known as potent natural antioxidants in the diet. In the present study, we investigated the antioxidative effects of an oligomerized grape seed polyphenol (OGSP) on inflammatory changes in coculture of adipocytes and macrophages. Coculture of HW mouse white adipocytes and RAW264 mouse macrophages markedly increased the production of TNF-alpha, MCP-1 and plasminogen activator inhibitor-1 compared with control culture. Treatment of HW cells with OGSP significantly attenuated the dysregulated production of adipokines. Moreover, OGSP significantly suppressed coculture-induced production of reactive oxygen species (ROS). Although enhanced release of free fatty acids (FFAs) by coculture was not altered by OGSP, FFA-induced ROS production in HW cells was significantly attenuated by OGSP. Furthermore, OGSP significantly reduced increases in the transcriptional activity of nuclear factor-kappaB and activation of extracellular signal-regulated kinase by coculture. Thus, these results suggest that the antioxidative properties of OGSP attenuate inflammatory changes induced by the coculture of adipocytes and macrophages. FAU - Sakurai, Takuya AU - Sakurai T AD - Department of Molecular Predictive Medicine and Sport Science, Kyorin University, School of Medicine, Tokyo 181-8611, Japan. FAU - Kitadate, Kentaro AU - Kitadate K FAU - Nishioka, Hiroshi AU - Nishioka H FAU - Fujii, Hajime AU - Fujii H FAU - Kizaki, Takako AU - Kizaki T FAU - Kondoh, Yasumasa AU - Kondoh Y FAU - Izawa, Tetsuya AU - Izawa T FAU - Ishida, Hitoshi AU - Ishida H FAU - Radak, Zsolt AU - Radak Z FAU - Ohno, Hideki AU - Ohno H LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20090120 PL - United States TA - J Nutr Biochem JT - The Journal of nutritional biochemistry JID - 9010081 RN - 0 (Antioxidants) RN - 0 (Chemokine CCL2) RN - 0 (Flavonoids) RN - 0 (Phenols) RN - 0 (Plasminogen Activator Inhibitor 1) RN - 0 (Polyphenols) RN - 0 (Tumor Necrosis Factor-alpha) SB - IM MH - Adipocytes/cytology/*physiology MH - Animals MH - Antioxidants/*pharmacology MH - Cell Death/drug effects MH - Cell Line MH - Chemokine CCL2/biosynthesis MH - Coculture Techniques MH - Flavonoids/*pharmacology/therapeutic use MH - Inflammation/*drug therapy/pathology MH - Macrophages/cytology/*physiology MH - Mice MH - Oxidative Stress/drug effects MH - Phenols/*pharmacology/therapeutic use MH - Plasminogen Activator Inhibitor 1/biosynthesis MH - Polyphenols MH - Seeds/chemistry MH - Tumor Necrosis Factor-alpha/biosynthesis MH - Vitis/*chemistry EDAT- 2009/01/23 09:00 MHDA- 2010/02/02 06:00 CRDT- 2009/01/23 09:00 PHST- 2008/05/17 00:00 [received] PHST- 2008/09/29 00:00 [revised] PHST- 2008/10/02 00:00 [accepted] PHST- 2009/01/23 09:00 [entrez] PHST- 2009/01/23 09:00 [pubmed] PHST- 2010/02/02 06:00 [medline] AID - S0955-2863(08)00222-2 [pii] AID - 10.1016/j.jnutbio.2008.10.003 [doi] PST - ppublish SO - J Nutr Biochem. 2010 Jan;21(1):47-54. doi: 10.1016/j.jnutbio.2008.10.003. Epub 2009 Jan 20.