PMID- 22507635 OWN - NLM STAT- MEDLINE DCOM- 20120626 LR - 20181201 IS - 1879-0631 (Electronic) IS - 0024-3205 (Linking) VI - 90 IP - 19-20 DP - 2012 May 22 TI - Resveratrol downregulates acute pulmonary thromboembolism-induced pulmonary artery hypertension via p38 mitogen-activated protein kinase and monocyte chemoattractant protein-1 signaling in rats. PG - 721-7 LID - 10.1016/j.lfs.2012.03.008 [doi] AB - AIMS: In the present study, we explored the hypothesis that initiation of PH involves the upregulation of monocyte chemoattractant protein-1 (MCP-1) in acute PTE. We evaluated the effects of resveratrol and the role of p38 mitogen-activated protein kinase (MAPK) in this process. MAIN METHODS: A rat model of acute PTE was established by infusion of an autologous blood clot into the pulmonary artery through a polyethylene catheter. Rats were randomly divided into 1, 4, and 8 hour time groups. Resveratrol, C1142 (a rodent chimeric mAb that neutralizes rat MCP-1) or SB203580 (a p38MAPK specific inhibitor) was administered to the animals beginning 1 h prior to the start of the acute PTE protocol. At each time point, the mean pulmonary artery pressure (mPAP), mRNA and protein expressions of MCP-1 were measured. The phosphorylation of p38 MAPK (p-pMAPK) was also detected. KEY FINDINGS: Acute PTE elicited significant increases in mean pulmonary artery pressure (mPAP), and up-regulated the expression of monocyte chemoattractant protein-1 (MCP-1) and phosphorylation of p38 mitogen-activated protein kinase (p-p38 MAPK). Administration of C1142 markedly reduced mPAP. Furthermore, pre-treatment of rats with resveratrol significantly reduced mPAP and down-regulated the expression of MCP-1, which was associated with robustly suppressed acute PTE-induced p-p38MAPK expression. SIGNIFICANCE: These findings suggested that MCP-1 was involved in the formation of acute PTE-induced PH, and resveratrol down-regulated the expression of MCP-1 by inhibiting acute PTE-induced p-p38MAPK activation, which contributed to the decrease in PH. CI - Copyright (c) 2012 Elsevier Inc. All rights reserved. FAU - Chun, Chen AU - Chun C AD - Department of Respiratory Medicine, The First Affiliated Hospital, Wenzhou Medical College, Wenzhou 325000, China. FAU - Yang, Wang AU - Yang W FAU - Xueding, Cai AU - Xueding C FAU - Qi, Zhang AU - Qi Z FAU - Xiaoying, Huang AU - Xiaoying H FAU - Honglei, Xu AU - Honglei X FAU - Fangyou, Yu AU - Fangyou Y FAU - Chan, Chen AU - Chan C FAU - Yuanyuan, Lu AU - Yuanyuan L FAU - Weixi, Zhang AU - Weixi Z FAU - Dan, Yao AU - Dan Y FAU - Zhoucang, Zhang AU - Zhoucang Z FAU - Lehe, Yang AU - Lehe Y FAU - Cheng, Ding AU - Cheng D FAU - Liangxing, Wang AU - Liangxing W LA - eng PT - Journal Article DEP - 20120401 PL - Netherlands TA - Life Sci JT - Life sciences JID - 0375521 RN - 0 (Chemokine CCL2) RN - 0 (Enzyme Inhibitors) RN - 0 (Imidazoles) RN - 0 (Indicators and Reagents) RN - 0 (Pyridines) RN - 0 (RNA, Messenger) RN - 0 (Stilbenes) RN - EC 2.7.11.24 (p38 Mitogen-Activated Protein Kinases) RN - OU13V1EYWQ (SB 203580) RN - Q369O8926L (Resveratrol) SB - IM MH - Animals MH - Blotting, Western MH - Chemokine CCL2/*antagonists & inhibitors/biosynthesis/physiology MH - Down-Regulation/drug effects MH - Enzyme Inhibitors/*pharmacology/therapeutic use MH - Fluorescent Antibody Technique MH - Hypertension, Pulmonary/complications/*drug therapy MH - Imidazoles/pharmacology MH - Immunohistochemistry MH - Indicators and Reagents MH - Male MH - Pulmonary Embolism/complications/*drug therapy MH - Pyridines/pharmacology MH - RNA, Messenger/biosynthesis MH - Rats MH - Rats, Sprague-Dawley MH - Real-Time Polymerase Chain Reaction MH - Resveratrol MH - Signal Transduction/*drug effects MH - Stilbenes/*pharmacology/therapeutic use MH - p38 Mitogen-Activated Protein Kinases/*antagonists & inhibitors/biosynthesis/physiology EDAT- 2012/04/18 06:00 MHDA- 2012/06/27 06:00 CRDT- 2012/04/18 06:00 PHST- 2011/10/01 00:00 [received] PHST- 2012/01/27 00:00 [revised] PHST- 2012/02/28 00:00 [accepted] PHST- 2012/04/18 06:00 [entrez] PHST- 2012/04/18 06:00 [pubmed] PHST- 2012/06/27 06:00 [medline] AID - S0024-3205(12)00131-2 [pii] AID - 10.1016/j.lfs.2012.03.008 [doi] PST - ppublish SO - Life Sci. 2012 May 22;90(19-20):721-7. doi: 10.1016/j.lfs.2012.03.008. Epub 2012 Apr 1.