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Ishii N, Matsumura T, Kinoshita H, Fukuda K, Motoshima H, Senokuchi T, Nakao S, Tsutsumi A, Kim-Mitsuyama S, Kawada T, Takeya M, Miyamura N, Nishikawa T, Araki E. Nifedipine Induces Peroxisome Proliferator-Activated Receptor-γ Activation in Macrophages and Suppresses the Progression of Atherosclerosis in Apolipoprotein E-Deficient Mice. Arterioscler Thromb Vasc Biol 2010; 30:1598-605. [DOI: 10.1161/atvbaha.109.202309] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective—
Nifedipine, an L-type calcium channel blocker, protects against the progression of atherosclerosis. We investigated the molecular basis of the antiatherosclerotic effect of nifedipine in macrophages and apolipoprotein E-deficient mice.
Methods and Results—
In macrophages, nifedipine increased peroxisome proliferator-activated receptor-γ (PPARγ) activity without increasing PPARγ-binding activity. Amlodipine, another L-type calcium channel blocker, and 1,2-bis-(o-aminophenoxy)-ethane-N,N,-N′,N′-tetraacetic acid tetraacetoxy-methyl ester (BAPTA-AM), a calcium chelator, decreased PPARγ activity, suggesting that nifedipine does not activate PPARγ via calcium channel blocker activity. Inactivation of extracellular signal-regulated kinase 1/2 suppressed PPARγ2-Ser112 phosphorylation and induced PPARγ activation. Nifedipine suppressed extracellular signal-regulated kinase 1/2 activation and PPARγ2-Ser112 phosphorylation, and mutating PPARγ2-Ser112 to Ala abrogated nifedipine-mediated PPARγ activation. These results suggested that nifedipine inhibited extracellular signal-regulated kinase 1/2 activity and PPARγ2-Ser112 phosphorylation, leading to PPARγ activation. Nifedipine inhibited lipopolysaccharide-induced monocyte chemoattractant protein-1 expression and induced ATP-binding cassette transporter A1 mRNA expression, and these effects were abrogated by small interfering RNA for PPARγ. Furthermore, in apolipoprotein E-deficient mice, nifedipine treatment decreased atherosclerotic lesion size, phosphorylation of PPARγ2-Ser112 and extracellular signal-regulated kinase 1/2, and monocyte chemoattractant protein-1 mRNA expression and increased ATP-binding cassette transporter A1 expression in the aorta.
Conclusion—
Nifedipine unlike amlodipine inhibits PPARγ-Ser phosphorylation and activates PPARγ to suppress monocyte chemoattractant protein-1 expression and induce ATP-binding cassette transporter A1 expression in macrophages. These effects may induce antiatherogenic effects in hypertensive patients.
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Affiliation(s)
- Norio Ishii
- From the Departments of Metabolic Medicine (N.I., T.M., H.K., K.F., H.M., T.S., A.T., N.M., T.N., E.A.), Pharmacology and Molecular Therapeutics (S.K.-M.), and Cell Pathology (M.T.), Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan (T.K.); Department of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto
| | - Takeshi Matsumura
- From the Departments of Metabolic Medicine (N.I., T.M., H.K., K.F., H.M., T.S., A.T., N.M., T.N., E.A.), Pharmacology and Molecular Therapeutics (S.K.-M.), and Cell Pathology (M.T.), Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan (T.K.); Department of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto
| | - Hiroyuki Kinoshita
- From the Departments of Metabolic Medicine (N.I., T.M., H.K., K.F., H.M., T.S., A.T., N.M., T.N., E.A.), Pharmacology and Molecular Therapeutics (S.K.-M.), and Cell Pathology (M.T.), Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan (T.K.); Department of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto
| | - Kazuki Fukuda
- From the Departments of Metabolic Medicine (N.I., T.M., H.K., K.F., H.M., T.S., A.T., N.M., T.N., E.A.), Pharmacology and Molecular Therapeutics (S.K.-M.), and Cell Pathology (M.T.), Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan (T.K.); Department of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto
| | - Hiroyuki Motoshima
- From the Departments of Metabolic Medicine (N.I., T.M., H.K., K.F., H.M., T.S., A.T., N.M., T.N., E.A.), Pharmacology and Molecular Therapeutics (S.K.-M.), and Cell Pathology (M.T.), Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan (T.K.); Department of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto
| | - Takafumi Senokuchi
- From the Departments of Metabolic Medicine (N.I., T.M., H.K., K.F., H.M., T.S., A.T., N.M., T.N., E.A.), Pharmacology and Molecular Therapeutics (S.K.-M.), and Cell Pathology (M.T.), Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan (T.K.); Department of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto
| | - Saya Nakao
- From the Departments of Metabolic Medicine (N.I., T.M., H.K., K.F., H.M., T.S., A.T., N.M., T.N., E.A.), Pharmacology and Molecular Therapeutics (S.K.-M.), and Cell Pathology (M.T.), Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan (T.K.); Department of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto
| | - Atsuyuki Tsutsumi
- From the Departments of Metabolic Medicine (N.I., T.M., H.K., K.F., H.M., T.S., A.T., N.M., T.N., E.A.), Pharmacology and Molecular Therapeutics (S.K.-M.), and Cell Pathology (M.T.), Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan (T.K.); Department of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto
| | - Shokei Kim-Mitsuyama
- From the Departments of Metabolic Medicine (N.I., T.M., H.K., K.F., H.M., T.S., A.T., N.M., T.N., E.A.), Pharmacology and Molecular Therapeutics (S.K.-M.), and Cell Pathology (M.T.), Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan (T.K.); Department of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto
| | - Teruo Kawada
- From the Departments of Metabolic Medicine (N.I., T.M., H.K., K.F., H.M., T.S., A.T., N.M., T.N., E.A.), Pharmacology and Molecular Therapeutics (S.K.-M.), and Cell Pathology (M.T.), Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan (T.K.); Department of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto
| | - Motohiro Takeya
- From the Departments of Metabolic Medicine (N.I., T.M., H.K., K.F., H.M., T.S., A.T., N.M., T.N., E.A.), Pharmacology and Molecular Therapeutics (S.K.-M.), and Cell Pathology (M.T.), Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan (T.K.); Department of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto
| | - Nobuhiro Miyamura
- From the Departments of Metabolic Medicine (N.I., T.M., H.K., K.F., H.M., T.S., A.T., N.M., T.N., E.A.), Pharmacology and Molecular Therapeutics (S.K.-M.), and Cell Pathology (M.T.), Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan (T.K.); Department of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto
| | - Takeshi Nishikawa
- From the Departments of Metabolic Medicine (N.I., T.M., H.K., K.F., H.M., T.S., A.T., N.M., T.N., E.A.), Pharmacology and Molecular Therapeutics (S.K.-M.), and Cell Pathology (M.T.), Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan (T.K.); Department of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto
| | - Eiichi Araki
- From the Departments of Metabolic Medicine (N.I., T.M., H.K., K.F., H.M., T.S., A.T., N.M., T.N., E.A.), Pharmacology and Molecular Therapeutics (S.K.-M.), and Cell Pathology (M.T.), Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan (T.K.); Department of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto
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Chen J, Yang S, Hu S, Choudhry MA, Bland KI, Chaudry IH. Estrogen prevents intestinal inflammation after trauma-hemorrhage via downregulation of angiotensin II and angiotensin II subtype I receptor. Am J Physiol Gastrointest Liver Physiol 2008; 295:G1131-7. [PMID: 18832446 PMCID: PMC2584827 DOI: 10.1152/ajpgi.90443.2008] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Although angiotensin II (Ang II) plays a key role in development of organ ischemia-reperfusion injury, it remains unclear whether it is involved in development of intestinal injury following trauma-hemorrhage (T-H). Studies have shown that 17beta-estradiol (E2) administration following T-H improves small intestinal blood flow; however, it is unclear whether Ang II plays a role in this E2-mediated salutary effect. Male Sprague-Dawley rats underwent laparotomy and hemorrhagic shock (removal of 60% total blood volume, fluid resuscitation after 90 min). At onset of resuscitation, rats were treated with vehicle, E2, or E2 and estrogen receptor antagonist ICI 182,780 (ICI). A separate group of rats was treated with Ang II subtype I receptor (AT1R) antagonist losartan. At 24 h after T-H, plasma Ang II, IL-6, TNF-alpha, intercellular adhesion molecule (ICAM)-1, cytokine-induced neutrophil chemoattractant (CINC)-1 and CINC-3 levels, myeloperoxidase (MPO) activity, and AT1R expression were determined. T-H significantly increased plasma and intestinal Ang II, IL-6, TNF-alpha levels, intestinal ICAM-1, CINC-1, CINC-3 levels, MPO activity, and AT1R protein compared with shams. E2 treatment following T-H attenuated increased intestinal MPO activity, Ang II level, and AT1R protein expression. ICI administration abolished the salutary effects of E2. In contrast, losartan administration attenuated increased MPO activity without affecting Ang II and AT1R levels. Thus Ang II plays a role in producing small intestine inflammation following T-H, and the salutary effects of E2 on intestinal inflammation are mediated in part by Ang II and AT1R downregulation.
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Affiliation(s)
- Jianguo Chen
- Department of Surgery, Center for Surgical Research, University of Alabama at Birmingham, Birmingham, Alabama
| | - Shaolong Yang
- Department of Surgery, Center for Surgical Research, University of Alabama at Birmingham, Birmingham, Alabama
| | - Shunhua Hu
- Department of Surgery, Center for Surgical Research, University of Alabama at Birmingham, Birmingham, Alabama
| | - Mashkoor A. Choudhry
- Department of Surgery, Center for Surgical Research, University of Alabama at Birmingham, Birmingham, Alabama
| | - Kirby I. Bland
- Department of Surgery, Center for Surgical Research, University of Alabama at Birmingham, Birmingham, Alabama
| | - Irshad H. Chaudry
- Department of Surgery, Center for Surgical Research, University of Alabama at Birmingham, Birmingham, Alabama
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