Lercanidipine and labedipinedilol-A attenuate lipopolysaccharide/interferon-γ-induced inflammation in rat vascular smooth muscle cells through inhibition of HMGB1 release and MMP-2, 9 activities

Jwu Lai Yeh, Jong Hau Hsu, Jyh Chong Liang, Ing Jun Chen, Shu Fen Liou*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

Objective: Inflammation is an important molecular basis of atherosclerosis. Recent studies have shown that dihydropyridine calcium channel blockers (CCBs) can exert potent anti-inflammatory effects in models of vascular dysfunction. The purpose of the present study was to evaluate anti-inflammatory effects and mechanisms of lercanidipine and labedipinedilol-A, new generation dihydropyridine CCBs, in rat vascular smooth muscle cells (VSMCs) exposed to lipopolysaccharide (LPS) and interferon-γ (IFN-γ). Methods and results: MTT, Griess reagent, RT-PCR, ELISA, gelatin zymography, immunocytochemistry and Western blotting were employed. We found that lercanidipine and labedipinedilol-A attenuated production of NO, ROS and TNF-α from LPS/IFN-γ-stimulated VSMCs. In addition, they both diminished the LPS/IFN-γ-induced expression of iNOS protein and mRNA, with attenuation of HMGB1 cytosolic translocation and subsequent extracellular release. Furthermore, they down-regulated MMP-2/MMP-9 activities, whereas expression of tissue inhibitor of matrix metalloproteinase-1 (TIMP-1), an inhibitor of MMP-9, was up-regulated. Finally, we found that lercanidipine and labedipinedilol-A inhibited the nuclear translocation of NF-κB and suppressed the phosphorylation of JNK, p38 MAPK and Akt. Conclusion: Lercanidipine and labedipinedilol-A can exert their anti-inflammatory effects through suppression of NO, ROS and TNF-α through down-regulation of iNOS, MMP-2/MMP-9, and HMGB1, with inhibition of signaling transduction of MAPKs, Akt/IkB-α and NF-κB pathways. These findings implicate a valuable role of new generation dihydropyridine CCBs lercanidipine and labedipinedilol-A for the treatment of inflammatory vascular diseases.

Original languageEnglish
Pages (from-to)364-372
Number of pages9
JournalAtherosclerosis
Volume226
Issue number2
DOIs
Publication statusPublished - 2013 Feb
Externally publishedYes

Keywords

  • Dihydropyridine calcium channel blockers
  • Lipopolysaccharide/interferon-γ
  • Vascular smooth muscle cells

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Fingerprint

Dive into the research topics of 'Lercanidipine and labedipinedilol-A attenuate lipopolysaccharide/interferon-γ-induced inflammation in rat vascular smooth muscle cells through inhibition of HMGB1 release and MMP-2, 9 activities'. Together they form a unique fingerprint.

Cite this