PMID- 20413894 OWN - NLM STAT- MEDLINE DCOM- 20101012 LR - 20131121 IS - 1875-8908 (Electronic) IS - 1387-2877 (Linking) VI - 20 IP - 4 DP - 2010 TI - PPARgamma agonist curcumin reduces the amyloid-beta-stimulated inflammatory responses in primary astrocytes. PG - 1189-99 LID - 10.3233/JAD-2010-091336 [doi] AB - Alzheimer's disease (AD) is the most common age-related neurodegenerative disorder. Accumulating data indicate that astrocytes play an important role in the neuroinflammation related to the pathogenesis of AD. It has been shown that microglia and astrocytes are activated in AD brain and amyloid-beta (Abeta) can increase the expression of cyclooxygenase 2 (COX-2), interleukin-1, and interleukin-6. Suppressing the inflammatory response caused by activated astrocytes may help to inhibit the development of AD. Curcumin is a major constituent of the yellow curry spice turmeric and proved to be a potential anti-inflammatory drug in arthritis and colitis. There is a low age-adjusted prevalence of AD in India, a country where turmeric powder is commonly used as a culinary compound. Curcumin has been shown to suppress activated astroglia in amyloid-beta protein precursor transgenic mice. The real mechanism by which curcumin inhibits activated astroglia is poorly understood. Here we report that the expression of COX-2 and glial fibrillary acidic protein were enhanced and that of peroxisome proliferator-activated receptor gamma (PPARgamma) was decreased in Abeta(25-35)-treated astrocytes. In line with these results, nuclear factor-kappaB translocation was increased in the presence of Abeta. All these can be reversed by the pretreatment of curcumin. Furthermore, GW9662, a PPARgamma antagonist, can abolish the anti-inflammatory effect of curcumin. These results show that curcumin might act as a PPARgamma agonist to inhibit the inflammation in Abeta-treated astrocytes. FAU - Wang, Hong-Mei AU - Wang HM AD - Department of Neurology & Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China. FAU - Zhao, Yan-Xin AU - Zhao YX FAU - Zhang, Shi AU - Zhang S FAU - Liu, Gui-Dong AU - Liu GD FAU - Kang, Wen-Yan AU - Kang WY FAU - Tang, Hui-Dong AU - Tang HD FAU - Ding, Jian-Qing AU - Ding JQ FAU - Chen, Sheng-Di AU - Chen SD LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - J Alzheimers Dis JT - Journal of Alzheimer's disease : JAD JID - 9814863 RN - 0 (2-chloro-5-nitrobenzanilide) RN - 0 (Amyloid beta-Peptides) RN - 0 (Anilides) RN - 0 (Glial Fibrillary Acidic Protein) RN - 0 (Nerve Tissue Proteins) RN - 0 (Nuclear Proteins) RN - 0 (PPAR gamma) RN - EC 1.14.99.1 (Cyclooxygenase 2) RN - IT942ZTH98 (Curcumin) SB - IM MH - Amyloid beta-Peptides/*antagonists & inhibitors/*toxicity MH - Anilides/pharmacology MH - Animals MH - Animals, Newborn MH - Astrocytes/*pathology MH - Cells, Cultured MH - Curcumin/*pharmacology MH - Cyclooxygenase 2/genetics/metabolism MH - Glial Fibrillary Acidic Protein/genetics/metabolism MH - Inflammation/pathology MH - Nerve Tissue Proteins/metabolism MH - Nuclear Proteins/metabolism MH - PPAR gamma/*agonists MH - Rats MH - Rats, Sprague-Dawley EDAT- 2010/04/24 06:00 MHDA- 2010/10/13 06:00 CRDT- 2010/04/24 06:00 PHST- 2010/04/24 06:00 [entrez] PHST- 2010/04/24 06:00 [pubmed] PHST- 2010/10/13 06:00 [medline] AID - N815505T27635721 [pii] AID - 10.3233/JAD-2010-091336 [doi] PST - ppublish SO - J Alzheimers Dis. 2010;20(4):1189-99. doi: 10.3233/JAD-2010-091336.