PMID- 21345291 OWN - NLM STAT- MEDLINE DCOM- 20110503 LR - 20171116 IS - 0392-856X (Print) IS - 0392-856X (Linking) VI - 29 IP - 1 DP - 2011 Jan-Feb TI - Geranylgeranyl-pyrophosphate regulates secretion of pentraxin 3 and monocyte chemoattractant protein-1 from rheumatoid fibroblast-like synoviocytes in distinct manners. PG - 43-9 AB - OBJECTIVES: We previously reported that 10 mg/day of simvastatin significantly reduced clinical scores of rheumatoid arthritis (RA) in active RA patients with hypercholesterolemia. In this study, we have investigated the mechanism by which simvastatin inhibits the production of the mediators of inflammation, such as pentraxin 3 (PTX3) and monocyte chemoattractant protein-1 (MCP-1), from fibroblast-like synoviocytes (FLS) derived from patients with RA. METHODS: FLS from RA patients were cultured with 0-10 muM simvastatin for 24 h. ELISA and real-time PCR were used to quantitate the protein level and the mRNA level of PTX3 and MCP-1, respectively. RESULTS: Simvastatin both reduced the secretion of PTX3 and MCP-1 in FLS cultures and inhibited their mRNA expression in these cells. The effects of simvastatin were all completely reversed in the presence of mevalonic acid or geranylgeranylpyrophosphate, but not in the presence of farnesyl-pyrophosphate. The geranylgeranyl transferase inhibitor GGTI-298 and the Rho kinase inhibitor Y-27632 inhibited the production of PTX3 but not of MCP-1. CONCLUSIONS: Although simvastatin inhibited the production of PTX3 and MCP-1 in RA FLS, the mechanisms were quite different. It inhibits PTX3 production in a Rho-dependent manner but MCP-1 production in a Rho-independent manner. These results shed light on novel aspects of the anti-inflammatory mechanisms of simvastatin and may prove its important role in the treatment of rheumatic diseases. FAU - Yokota, Kazuhiro AU - Yokota K AD - Department of Rheumatology and Applied Immunology, Saitama Medical University, Saitama, Japan. yokotak@saitama-med.ac.jp FAU - Miyoshi, Fumihiko AU - Miyoshi F FAU - Sato, Kojiro AU - Sato K FAU - Asanuma, Yu AU - Asanuma Y FAU - Akiyama, Yuji AU - Akiyama Y FAU - Mimura, Toshihide AU - Mimura T LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110223 PL - Italy TA - Clin Exp Rheumatol JT - Clinical and experimental rheumatology JID - 8308521 RN - 0 (Amides) RN - 0 (Benzamides) RN - 0 (Chemokine CCL2) RN - 0 (GGTI 298) RN - 0 (Hydroxymethylglutaryl-CoA Reductase Inhibitors) RN - 0 (Polyisoprenyl Phosphates) RN - 0 (Pyridines) RN - 0 (RNA, Messenger) RN - 0 (Serum Amyloid P-Component) RN - 0 (Sesquiterpenes) RN - 138381-45-0 (Y 27632) RN - 148591-49-5 (PTX3 protein) RN - 79W6B01D07 (farnesyl pyrophosphate) RN - 9007-41-4 (C-Reactive Protein) RN - AGG2FN16EV (Simvastatin) RN - N21T0D88LX (geranylgeranyl pyrophosphate) RN - S5UOB36OCZ (Mevalonic Acid) SB - IM MH - Amides/pharmacology MH - Arthritis, Rheumatoid/*drug therapy/pathology MH - Benzamides/pharmacology MH - C-Reactive Protein/antagonists & inhibitors/genetics/*metabolism MH - Cells, Cultured MH - Chemokine CCL2/antagonists & inhibitors/genetics/*metabolism MH - Fibroblasts/drug effects/metabolism/pathology MH - Gene Expression/drug effects MH - Humans MH - Hydroxymethylglutaryl-CoA Reductase Inhibitors/*pharmacology MH - Mevalonic Acid/pharmacology MH - Polyisoprenyl Phosphates/*pharmacology MH - Pyridines/pharmacology MH - RNA, Messenger/metabolism MH - Serum Amyloid P-Component/antagonists & inhibitors/genetics/*metabolism MH - Sesquiterpenes/pharmacology MH - Simvastatin/*pharmacology MH - Synovial Membrane/drug effects/metabolism/pathology EDAT- 2011/02/25 06:00 MHDA- 2011/05/04 06:00 CRDT- 2011/02/25 06:00 PHST- 2010/04/20 00:00 [received] PHST- 2010/10/11 00:00 [accepted] PHST- 2011/02/25 06:00 [entrez] PHST- 2011/02/25 06:00 [pubmed] PHST- 2011/05/04 06:00 [medline] AID - 3888 [pii] PST - ppublish SO - Clin Exp Rheumatol. 2011 Jan-Feb;29(1):43-9. Epub 2011 Feb 23.