PMID- 18192036 OWN - NLM STAT- MEDLINE DCOM- 20080729 LR - 20171116 IS - 1874-1754 (Electronic) IS - 0167-5273 (Linking) VI - 126 IP - 3 DP - 2008 Jun 6 TI - Imidaprilat inhibits matrix metalloproteinase-2 activity in human cardiac fibroblasts induced by interleukin-1beta via NO-dependent pathway. PG - 414-20 LID - 10.1016/j.ijcard.2007.08.134 [doi] AB - BACKGROUND: Angiotensin-converting enzyme (ACE) inhibitors are widely used in treatment of heart failure, but little is known regarding whether ACE inhibitors regulate the activity of matrix metalloproteinases (MMPs) and the tissue inhibitor of MMPs (TIMPs) in cardiac cells. The purpose of this study was to determine the ability and possible signal pathway involved of imidaprilat, an ACE inhibitor, to modulate MMP-2 and TIMP-2 in human cardiac fibroblasts in the presence of interleukin (IL)-1beta. METHODS AND RESULTS: Using gelatin zymography and RT-PCR and Griess analysis,we found that IL-1beta increased the MMP-2 activity and transcription and nitric oxide(NO) production from supernatant of culture medium. These effects of IL-1beta were inhibited by imidaprilat or the NO synthase inhibitor, L-NMMA. Sodium nitroprusside (SNP), an exogenous NO donor, prevented significantly the effects of imidaprilat on MMP-2 inhibition. Imidaprilat alone didn't affect MMP-2 activity and expression. Neither IL-1beta nor imidaprilat has no effect on TIMP-2 transcription in cardiac fibroblasts. CONCLUSIONS: The current study demonstrates imidaprilat inhibits MMP-2 activity and expression in human cardiac fibroblasts induced by IL-1beta via NO-dependent pathway. These data suggest that the beneficial effect of ACE inhibitors against left cardiac remodeling and heart failure may be due at least in part to regulating MMPs activity and expression by modulation of NO pathway. FAU - Guo, Xiao-Gang AU - Guo XG AD - Department of Cardiovascular Science, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310003 China. FAU - Uzui, Hiroyasu AU - Uzui H FAU - Mizuguchi, Toshihiro AU - Mizuguchi T FAU - Ueda, Takanori AU - Ueda T FAU - Chen, Jun-zhu AU - Chen JZ FAU - Lee, Jong-Dae AU - Lee JD LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20080114 PL - Netherlands TA - Int J Cardiol JT - International journal of cardiology JID - 8200291 RN - 0 (Imidazolidines) RN - 0 (Interleukin-1beta) RN - 0 (Matrix Metalloproteinase Inhibitors) RN - 31C4KY9ESH (Nitric Oxide) RN - 63231-63-0 (RNA) RN - EC 3.4.24.24 (Matrix Metalloproteinase 2) RN - WUU07Y30IA (imidaprilat) SB - IM MH - Analysis of Variance MH - Cells, Cultured MH - Electrophoresis, Polyacrylamide Gel MH - Fibroblasts/drug effects/*metabolism MH - Humans MH - Imidazolidines/*pharmacology MH - Interleukin-1beta/*metabolism/pharmacology MH - Matrix Metalloproteinase 2/*metabolism MH - *Matrix Metalloproteinase Inhibitors MH - Myocytes, Cardiac/drug effects/*metabolism MH - Nitric Oxide/*metabolism MH - Probability MH - RNA/analysis MH - Reverse Transcriptase Polymerase Chain Reaction MH - Risk Factors MH - Sensitivity and Specificity MH - Signal Transduction/drug effects/physiology EDAT- 2008/01/15 09:00 MHDA- 2008/07/30 09:00 CRDT- 2008/01/15 09:00 PHST- 2007/05/26 00:00 [received] PHST- 2007/08/16 00:00 [revised] PHST- 2007/08/18 00:00 [accepted] PHST- 2008/01/15 09:00 [pubmed] PHST- 2008/07/30 09:00 [medline] PHST- 2008/01/15 09:00 [entrez] AID - S0167-5273(07)01930-4 [pii] AID - 10.1016/j.ijcard.2007.08.134 [doi] PST - ppublish SO - Int J Cardiol. 2008 Jun 6;126(3):414-20. doi: 10.1016/j.ijcard.2007.08.134. Epub 2008 Jan 14.