PMID- 20606305 OWN - NLM STAT- MEDLINE DCOM- 20101126 LR - 20190720 IS - 1347-5215 (Electronic) IS - 0918-6158 (Linking) VI - 33 IP - 7 DP - 2010 TI - Cytokine reducing effect of azelnidipine in human peripheral blood mononuclear cells. PG - 1148-51 AB - Numerous clinical trials have shown that calcium channel blocker (CCB) therapy improves the clinical outcome in patients with cardiovascular diseases. Since the progression of several types of cardiovascular diseases is closely associated with inflammation, alleviation of inflammation may be one potential mechanism of those beneficial effects of CCB therapy. We examined whether a new CCB (azelnidipine) could influence the inflammatory response of human peripheral blood mononuclear cells (PBMCs), which are recruited to inflammatory lesions and modulate inflammation. We investigated whether azelnidipine affected intracellular signaling and cytokine production by phytohemagglutinin (PHA)-stimulated human PBMCs in vitro. PBMCs were obtained from 10 healthy volunteers and stimulated with PHA. Then relative intracellular calcium ion concentration ([Ca(2+)](i)) was assessed by fluorescence microscopy, and the production of monocyte chemoattractant protein-1 (MCP-1) and tumor necrosis factor-alpha (TNF-alpha) were measured by enzyme-linked immunosorbent assay. Stimulation with PHA significantly raised [Ca(2+)](i) and enhanced the production of MCP-1 and TNF-alpha by human PBMCs. Azelnidipine significantly diminished the PHA-induced rise of [Ca(2+)](i), and the production of MCP-1 and TNF-alpha. These findings indicate that azelnidipine might have an anti-inflammatory influence on human PBMCs, although the mechanisms and the difference from other CCBs still remain unclear and further exploration should be required. FAU - Miura, Ryuzea AU - Miura R AD - Department of Cardiovascular Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan. ryuzeamiura@mail.goo.ne.jp FAU - Nakamura, Kazufumi AU - Nakamura K FAU - Miura, Daiji AU - Miura D FAU - Miura, Aya AU - Miura A FAU - Kajiya, Masahito AU - Kajiya M FAU - Hisamatsu, Kenichi AU - Hisamatsu K FAU - Nagase, Satoshi AU - Nagase S FAU - Morita, Hiroshi AU - Morita H FAU - Kusano, Kengo Fukushima AU - Kusano KF FAU - Matsubara, Hiromi AU - Matsubara H FAU - Ohe, Tohru AU - Ohe T FAU - Ito, Hiroshi AU - Ito H LA - eng PT - Journal Article PL - Japan TA - Biol Pharm Bull JT - Biological & pharmaceutical bulletin JID - 9311984 RN - 0 (Calcium Channel Blockers) RN - 0 (Cytokines) RN - 0 (Dihydropyridines) RN - 0 (Inflammation Mediators) RN - 5GZ3E0L9ZU (Azetidinecarboxylic Acid) RN - PV23P19YUG (azelnidipine) SB - IM MH - Azetidinecarboxylic Acid/*analogs & derivatives/pharmacology MH - Calcium Channel Blockers/*pharmacology MH - Cytokines/*blood MH - Dihydropyridines/*pharmacology MH - Enzyme-Linked Immunosorbent Assay MH - Humans MH - Inflammation Mediators/*blood MH - Monocytes/*drug effects/metabolism EDAT- 2010/07/08 06:00 MHDA- 2010/12/14 06:00 CRDT- 2010/07/08 06:00 PHST- 2010/07/08 06:00 [entrez] PHST- 2010/07/08 06:00 [pubmed] PHST- 2010/12/14 06:00 [medline] AID - JST.JSTAGE/bpb/33.1148 [pii] AID - 10.1248/bpb.33.1148 [doi] PST - ppublish SO - Biol Pharm Bull. 2010;33(7):1148-51. doi: 10.1248/bpb.33.1148.