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Koga JI, Sun X, Ushio-Fukai M. Editorial: Mitochondria, metabolism and cardiovascular diseases. Front Cardiovasc Med 2022; 9:996739. [PMID: 36061554 PMCID: PMC9437701 DOI: 10.3389/fcvm.2022.996739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 08/04/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Jun-ichiro Koga
- Second Department of Internal Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
- *Correspondence: Jun-ichiro Koga
| | - Xinghui Sun
- Department of Biochemistry, University of Nebraska - Lincoln, Lincoln, NE, United States
| | - Masuko Ushio-Fukai
- Department of Medicine (Cardiology), Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA, United States
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Nakano K, Matoba T, Koga JI, Kashihara Y, Fukae M, Ieiri I, Shiramoto M, Irie S, Kishimoto J, Todaka K, Egashira K. Safety, Tolerability, and Pharmacokinetics of NK-104-NP. Int Heart J 2018; 59:1015-1025. [DOI: 10.1536/ihj.17-555] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Kaku Nakano
- Department of Cardiovascular Research, Development, and Translational Medicine, Center for Disruptive Cardiovascular Medicine, Kyushu University
| | - Tetsuya Matoba
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences
| | - Jun-ichiro Koga
- Department of Cardiovascular Research, Development, and Translational Medicine, Center for Disruptive Cardiovascular Medicine, Kyushu University
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences
| | - Yushi Kashihara
- Department of Clinical Pharmacokinetics, Graduate School of Pharmaceutical Sciences, Kyushu University
| | - Masato Fukae
- Department of Clinical Pharmacokinetics, Graduate School of Pharmaceutical Sciences, Kyushu University
| | - Ichiro Ieiri
- Department of Clinical Pharmacokinetics, Graduate School of Pharmaceutical Sciences, Kyushu University
| | | | | | - Junji Kishimoto
- Center for Clinical and Translational Research, Kyushu University Hospital
| | - Koji Todaka
- Center for Clinical and Translational Research, Kyushu University Hospital
| | - Kensuke Egashira
- Department of Cardiovascular Research, Development, and Translational Medicine, Center for Disruptive Cardiovascular Medicine, Kyushu University
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences
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Matoba T, Honda K, Koga JI, Egashira K, Tsutsui H. Lipid-lowering therapy with Ezetimibe Inhibits Spontaneous Atherothrombosis in a Rabbit Model of Plaque Erosion - A Role of Serum Oxysterols. ATHEROSCLEROSIS SUPP 2018. [DOI: 10.1016/j.atherosclerosissup.2018.04.294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Matoba T, Koga JI, Nakano K, Egashira K, Tsutsui H. Nanoparticle-mediated drug delivery system for atherosclerotic cardiovascular disease. J Cardiol 2017; 70:206-211. [DOI: 10.1016/j.jjcc.2017.03.005] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 03/02/2017] [Indexed: 01/26/2023]
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Ichimura K, Matoba T, Nakano K, Tokutome M, Honda K, Koga JI, Egashira K. A Translational Study of a New Therapeutic Approach for Acute Myocardial Infarction: Nanoparticle-Mediated Delivery of Pitavastatin into Reperfused Myocardium Reduces Ischemia-Reperfusion Injury in a Preclinical Porcine Model. PLoS One 2016; 11:e0162425. [PMID: 27603665 PMCID: PMC5014419 DOI: 10.1371/journal.pone.0162425] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 08/19/2016] [Indexed: 01/14/2023] Open
Abstract
Background There is an unmet need to develop an innovative cardioprotective modality for acute myocardial infarction, for which interventional reperfusion therapy is hampered by ischemia-reperfusion (IR) injury. We recently reported that bioabsorbable poly(lactic acid/glycolic acid) (PLGA) nanoparticle-mediated treatment with pitavastatin (pitavastatin-NP) exerts a cardioprotective effect in a rat IR injury model by activating the PI3K-Akt pathway and inhibiting inflammation. To obtain preclinical proof-of-concept evidence, in this study, we examined the effect of pitavastatin-NP on myocardial IR injury in conscious and anesthetized pig models. Methods and Results Eighty-four Bama mini-pigs were surgically implanted with a pneumatic cuff occluder at the left circumflex coronary artery (LCx) and telemetry transmitters to continuously monitor electrocardiogram as well as to monitor arterial blood pressure and heart rate. The LCx was occluded for 60 minutes, followed by 24 hours of reperfusion under conscious conditions. Intravenous administration of pitavastatin-NP containing ≥ 8 mg/body of pitavastatin 5 minutes before reperfusion significantly reduced infarct size; by contrast, pitavastatin alone (8 mg/body) showed no therapeutic effects. Pitavastatin-NP produced anti-apoptotic effects on cultured cardiomyocytes in vitro. Cardiac magnetic resonance imaging performed 4 weeks after IR injury revealed that pitavastatin-NP reduced the extent of left ventricle remodeling. Importantly, pitavastatin-NP exerted no significant effects on blood pressure, heart rate, or serum biochemistry. Exploratory examinations in anesthetized pigs showed pharmacokinetic analysis and the effects of pitavastatin-NP on no-reflow phenomenon. Conclusions NP-mediated delivery of pitavastatin to IR-injured myocardium exerts cardioprotective effects on IR injury without apparent adverse side effects in a preclinical conscious pig model. Thus, pitavastatin-NP represents a novel therapeutic modality for IR injury in acute myocardial infarction.
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Affiliation(s)
- Kenzo Ichimura
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Tetsuya Matoba
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Kaku Nakano
- Department of Cardiovascular Research, Development, and Translational Medicine, Center for Cardiovascular Disruptive Innovation, Kyushu University, Fukuoka, Japan
| | - Masaki Tokutome
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Katsuya Honda
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Jun-ichiro Koga
- Department of Cardiovascular Research, Development, and Translational Medicine, Center for Cardiovascular Disruptive Innovation, Kyushu University, Fukuoka, Japan
| | - Kensuke Egashira
- Department of Cardiovascular Research, Development, and Translational Medicine, Center for Cardiovascular Disruptive Innovation, Kyushu University, Fukuoka, Japan
- * E-mail:
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Nakashiro S, Matoba T, Umezu R, Koga JI, Tokutome M, Katsuki S, Nakano K, Sunagawa K, Egashira K. Pioglitazone-Incorporated Nanoparticles Prevent Plaque Destabilization and Rupture by Regulating Monocyte/Macrophage Differentiation in
ApoE
−/−
Mice. Arterioscler Thromb Vasc Biol 2016; 36:491-500. [DOI: 10.1161/atvbaha.115.307057] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 01/12/2016] [Indexed: 01/17/2023]
Abstract
Objective—
Inflammatory monocytes/macrophages produce various proteinases, including matrix metalloproteinases, and degradation of the extracellular matrix by these activated proteinases weakens the mechanical strength of atherosclerotic plaques, which results in a rupture of the plaque. Peroxisome proliferator–activated receptor-γ induces a polarity shift of monocytes/macrophages toward less inflammatory phenotypes and has the potential to prevent atherosclerotic plaque ruptures. Therefore, we hypothesized that nanoparticle-mediated targeted delivery of the peroxisome proliferator–activated receptor-γ agonist pioglitazone into circulating monocytes could effectively inhibit plaque ruptures in a mouse model.
Approach and Results—
We prepared bioabsorbable poly(lactic-
co
-glycolic-acid) nanoparticles containing pioglitazone (pioglitazone-NPs). Intravenously administered poly(lactic-
co
-glycolic-acid) nanoparticles incorporated with fluorescein isothiocyanate were found in circulating monocytes and aortic macrophages by flow cytometric analysis. Weekly intravenous administration of pioglitazone-NPs (7 mg/kg per week) for 4 weeks decreased buried fibrous caps, a surrogate marker of plaque rupture, in the brachiocephalic arteries of
ApoE
−/−
mice fed a high-fat diet and infused with angiotensin II. In contrast, administration of control-NPs or an equivalent dose of oral pioglitazone treatment produced no effects. Pioglitazone-NPs inhibited the activity of matrix metalloproteinases and cathepsins in the brachiocephalic arteries. Pioglitazone-NPs regulated inflammatory cytokine expression and also suppressed the expression of extracellular matrix metalloproteinase inducer in bone marrow–derived macrophages.
Conclusions—
Nanoparticle-mediated delivery of pioglitazone inhibited macrophage activation and atherosclerotic plaque ruptures in hyperlipidemic
ApoE
−/−
mice. These results demonstrate a promising strategy with a favorable safety profile to prevent atherosclerotic plaque ruptures.
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Affiliation(s)
- Soichi Nakashiro
- From the Departments of Cardiovascular Medicine (S.N., T.M., R.U., J.K., M.T., S.K., K.S.) and Cardiovascular Research, Development, and Translational Medicine (K.N., K.E.), Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Tetsuya Matoba
- From the Departments of Cardiovascular Medicine (S.N., T.M., R.U., J.K., M.T., S.K., K.S.) and Cardiovascular Research, Development, and Translational Medicine (K.N., K.E.), Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Ryuta Umezu
- From the Departments of Cardiovascular Medicine (S.N., T.M., R.U., J.K., M.T., S.K., K.S.) and Cardiovascular Research, Development, and Translational Medicine (K.N., K.E.), Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Jun-ichiro Koga
- From the Departments of Cardiovascular Medicine (S.N., T.M., R.U., J.K., M.T., S.K., K.S.) and Cardiovascular Research, Development, and Translational Medicine (K.N., K.E.), Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Masaki Tokutome
- From the Departments of Cardiovascular Medicine (S.N., T.M., R.U., J.K., M.T., S.K., K.S.) and Cardiovascular Research, Development, and Translational Medicine (K.N., K.E.), Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Shunsuke Katsuki
- From the Departments of Cardiovascular Medicine (S.N., T.M., R.U., J.K., M.T., S.K., K.S.) and Cardiovascular Research, Development, and Translational Medicine (K.N., K.E.), Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Kaku Nakano
- From the Departments of Cardiovascular Medicine (S.N., T.M., R.U., J.K., M.T., S.K., K.S.) and Cardiovascular Research, Development, and Translational Medicine (K.N., K.E.), Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Kenji Sunagawa
- From the Departments of Cardiovascular Medicine (S.N., T.M., R.U., J.K., M.T., S.K., K.S.) and Cardiovascular Research, Development, and Translational Medicine (K.N., K.E.), Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Kensuke Egashira
- From the Departments of Cardiovascular Medicine (S.N., T.M., R.U., J.K., M.T., S.K., K.S.) and Cardiovascular Research, Development, and Translational Medicine (K.N., K.E.), Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
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Abstract
Emerging evidence suggests that Notch signaling not only regulates biological processes during development but also participates in the pathogenesis of various diseases in adults, including tumor angiogenesis, hematopoietic malignancies, and cardiometabolic syndromes. Notch signaling involves several ligands and receptors that have unique and overlapping functions. Therefore, blocking function of a ligand or receptor with a neutralizing antibody is a useful approach to examine the specific role of each Notch component. In addition, administration of Notch signaling blocking antibodies in experimental animals offers important insights into clinical translation of Notch biology. In this chapter, we describe examples of in vitro and in vivo loss-of-function experiments with blockade of Notch ligands, particularly Delta-like ligand 4 (Dll4).
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Affiliation(s)
- Jun-ichiro Koga
- The Center for Excellence in Vascular Biology, Brigham and Women's Hospital, Harvard Medical School, 77 Avenue Louis Pasteur, NRB-741J, Boston, MA, 02115, USA
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Koga JI, Figueiredo JL, Dahlman JE, Niida T, Iwata H, Aster JC, Yagita H, Anderson DG, Ozaki CK, Aikawa M. Abstract 11: Macrophage Expression of the Notch Ligand Delta-Like 4 Promotes Vein Graft Disease in LDL Receptor--Deficient Mice. Arterioscler Thromb Vasc Biol 2014. [DOI: 10.1161/atvb.34.suppl_1.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Vein graft failure causes devastating complications in patients with peripheral arterial disease or ischemic heart disease, but its underlying mechanisms remain obscure and no effective therapeutic measures are available.
Methods and Results:
We tested the hypothesis that Notch signaling triggered by its ligand Delta-like 4 (Dll4) promotes macrophage activation and vein graft disease. Vein graft surgery was performed in high-fat fed LDL receptor-deficient (Ldlr-/-) mice by implanting donor inferior vena cava into recipient right carotid arteries. [Approach 1: Dll4 antibody] Dll4 blocking antibody was administered for 28 days. Dll4 blockade inhibited lesion development and macrophage accumulation (Figures) in vein grafts, and suppressed macrophage expression of genes typical of pro-inflammatory M1 macrophages (e.g., IL-1β, TNF-α). In vivo molecular imaging demonstrated that Dll4 antibody treatment suppressed MMP activity in lesional macrophages. Dll4 blockade concomitantly attenuated collagen thinning. [Approach 2: siRNA delivery to macrophages] To address the relative contribution of macrophages to Dll4-mediated vein graft disease in vivo, we delivered Dll4 siRNA oligos encapsulated in macrophage-targeted lipid nanoparticles. In vivo Dll4 silencing in macrophages reduced lesion development and macrophage burden in vein grafts of Ldlr-/- mice to a similar extent as those of Dll4 antibody therapy. In vitro gain-of-function and loss-of-function studies suggested that Dll4 promotes expression of pro-inflammatory molecules in macrophages. Furthermore, macrophage Dll4 stimulated smooth muscle cell (SMC) proliferation and migration and suppressed their differentiation.
Conclusions:
These results suggest the novel mechanism that macrophage Dll4 promotes vein graft lesion development by exacerbating inflammation and crosstalk between macrophages and SMC, supporting the Dll4-Notch axis as a potential therapeutic target.
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Affiliation(s)
- Jun-ichiro Koga
- Cardiovascular Div, Brigham and Women's Hosp, Harvard Med Sch, Boston, MA
| | | | - James E Dahlman
- David H. Koch Institute for Integrative Cancer Rsch, Massachusetts Institute of Technology, Cambridge, MA
| | - Tomiharu Niida
- Cardiovascular Div, Brigham and Women's Hosp, Harvard Med Sch, Boston, MA
| | - Hiroshi Iwata
- Cardiovascular Div, Brigham and Women's Hosp, Harvard Med Sch, Boston, MA
| | - Jon C Aster
- Dept of Pathology, Brigham and Women's Hosp, Harvard Med Sch, Boston, MA
| | - Hideo Yagita
- Cardiovascular Div, Juntendo Univ Sch of Medicine, Tokyo, Japan
| | - Daniel G Anderson
- David H. Koch Institute for Integrative Cancer Rsch, Massachusetts Institute of Technology, Cambridge, MA
| | - C K Ozaki
- Dept of Surgery, Brigham and Women's Hosp, Harvard Med Sch, Boston, MA
| | - Masanori Aikawa
- Cardiovascular Div, Brigham and Women's Hosp, Harvard Med Sch, Boston, MA
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Katsuki S, Matoba T, Nakashiro S, Sato K, Koga JI, Nakano K, Nakano Y, Egusa S, Sunagawa K, Egashira K. Nanoparticle-mediated delivery of pitavastatin inhibits atherosclerotic plaque destabilization/rupture in mice by regulating the recruitment of inflammatory monocytes. Circulation 2013; 129:896-906. [PMID: 24305567 DOI: 10.1161/circulationaha.113.002870] [Citation(s) in RCA: 116] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Preventing atherosclerotic plaque destabilization and rupture is the most reasonable therapeutic strategy for acute myocardial infarction. Therefore, we tested the hypotheses that (1) inflammatory monocytes play a causative role in plaque destabilization and rupture and (2) the nanoparticle-mediated delivery of pitavastatin into circulating inflammatory monocytes inhibits plaque destabilization and rupture. METHODS AND RESULTS We used a model of plaque destabilization and rupture in the brachiocephalic arteries of apolipoprotein E-deficient (ApoE(-/-)) mice fed a high-fat diet and infused with angiotensin II. The adoptive transfer of CCR2(+/+)Ly-6C(high) inflammatory macrophages, but not CCR2(-/-) leukocytes, accelerated plaque destabilization associated with increased serum monocyte chemoattractant protein-1 (MCP-1), monocyte-colony stimulating factor, and matrix metalloproteinase-9. We prepared poly(lactic-co-glycolic) acid nanoparticles that were incorporated by Ly-6G(-)CD11b(+) monocytes and delivered into atherosclerotic plaques after intravenous administration. Intravenous treatment with pitavastatin-incorporated nanoparticles, but not with control nanoparticles or pitavastatin alone, inhibited plaque destabilization and rupture associated with decreased monocyte infiltration and gelatinase activity in the plaque. Pitavastatin-incorporated nanoparticles inhibited MCP-1-induced monocyte chemotaxis and the secretion of MCP-1 and matrix metalloproteinase-9 from cultured macrophages. Furthermore, the nanoparticle-mediated anti-MCP-1 gene therapy reduced the incidence of plaque destabilization and rupture. CONCLUSIONS The recruitment of inflammatory monocytes is critical in the pathogenesis of plaque destabilization and rupture, and nanoparticle-mediated pitavastatin delivery is a promising therapeutic strategy to inhibit plaque destabilization and rupture by regulating MCP-1/CCR2-dependent monocyte recruitment in this model.
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Affiliation(s)
- Shunsuke Katsuki
- Department of Cardiovascular Medicine (S.K., T.M., S.N., J.K., Y.N., S.E., K. Sunagawa) and Department of Cardiovascular Research, Development, and Translational Medicine (K. Sato, K.N., K.E.), Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
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Koga JI, Aikawa M. Crosstalk between macrophages and smooth muscle cells in atherosclerotic vascular diseases. Vascul Pharmacol 2012; 57:24-8. [DOI: 10.1016/j.vph.2012.02.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2012] [Revised: 02/19/2012] [Accepted: 02/20/2012] [Indexed: 01/04/2023]
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Kubo T, Takahashi M, Sakai K, Matsusaka H, Koga J, Horimoto K, Sasaki K, Ashihara T. Persistent Atrial Tachycardia Mimicking Inappropriate Sinus Tachycardia: A Case Report. J Arrhythm 2011. [DOI: 10.1016/s1880-4276(11)80047-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Kubo M, Egashira K, Inoue T, Koga JI, Oda S, Chen L, Nakano K, Matoba T, Kawashima Y, Hara K, Tsujimoto H, Sueishi K, Tominaga R, Sunagawa K. Therapeutic Neovascularization by Nanotechnology-Mediated Cell-Selective Delivery of Pitavastatin Into the Vascular Endothelium. Arterioscler Thromb Vasc Biol 2009; 29:796-801. [DOI: 10.1161/atvbaha.108.182584] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Mitsuki Kubo
- From the Department of Cardiovascular Medicine (M.K., K.E., T.I., J.K., L.C., K.N., T.K., K. Sunagawa), Surgery (S.O., R.T.), and Pathology (K. Sueishi), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; the School of Pharmaceutical Science (Y.K.), Aichi Gakuin University, Aichi, Japan; and Hosokawa Powder Technology Research Institute (K.H., H.T.), Osaka, Japan
| | - Kensuke Egashira
- From the Department of Cardiovascular Medicine (M.K., K.E., T.I., J.K., L.C., K.N., T.K., K. Sunagawa), Surgery (S.O., R.T.), and Pathology (K. Sueishi), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; the School of Pharmaceutical Science (Y.K.), Aichi Gakuin University, Aichi, Japan; and Hosokawa Powder Technology Research Institute (K.H., H.T.), Osaka, Japan
| | - Takahiro Inoue
- From the Department of Cardiovascular Medicine (M.K., K.E., T.I., J.K., L.C., K.N., T.K., K. Sunagawa), Surgery (S.O., R.T.), and Pathology (K. Sueishi), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; the School of Pharmaceutical Science (Y.K.), Aichi Gakuin University, Aichi, Japan; and Hosokawa Powder Technology Research Institute (K.H., H.T.), Osaka, Japan
| | - Jun-ichiro Koga
- From the Department of Cardiovascular Medicine (M.K., K.E., T.I., J.K., L.C., K.N., T.K., K. Sunagawa), Surgery (S.O., R.T.), and Pathology (K. Sueishi), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; the School of Pharmaceutical Science (Y.K.), Aichi Gakuin University, Aichi, Japan; and Hosokawa Powder Technology Research Institute (K.H., H.T.), Osaka, Japan
| | - Shinichiro Oda
- From the Department of Cardiovascular Medicine (M.K., K.E., T.I., J.K., L.C., K.N., T.K., K. Sunagawa), Surgery (S.O., R.T.), and Pathology (K. Sueishi), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; the School of Pharmaceutical Science (Y.K.), Aichi Gakuin University, Aichi, Japan; and Hosokawa Powder Technology Research Institute (K.H., H.T.), Osaka, Japan
| | - Ling Chen
- From the Department of Cardiovascular Medicine (M.K., K.E., T.I., J.K., L.C., K.N., T.K., K. Sunagawa), Surgery (S.O., R.T.), and Pathology (K. Sueishi), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; the School of Pharmaceutical Science (Y.K.), Aichi Gakuin University, Aichi, Japan; and Hosokawa Powder Technology Research Institute (K.H., H.T.), Osaka, Japan
| | - Kaku Nakano
- From the Department of Cardiovascular Medicine (M.K., K.E., T.I., J.K., L.C., K.N., T.K., K. Sunagawa), Surgery (S.O., R.T.), and Pathology (K. Sueishi), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; the School of Pharmaceutical Science (Y.K.), Aichi Gakuin University, Aichi, Japan; and Hosokawa Powder Technology Research Institute (K.H., H.T.), Osaka, Japan
| | - Tetsuya Matoba
- From the Department of Cardiovascular Medicine (M.K., K.E., T.I., J.K., L.C., K.N., T.K., K. Sunagawa), Surgery (S.O., R.T.), and Pathology (K. Sueishi), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; the School of Pharmaceutical Science (Y.K.), Aichi Gakuin University, Aichi, Japan; and Hosokawa Powder Technology Research Institute (K.H., H.T.), Osaka, Japan
| | - Yoshiaki Kawashima
- From the Department of Cardiovascular Medicine (M.K., K.E., T.I., J.K., L.C., K.N., T.K., K. Sunagawa), Surgery (S.O., R.T.), and Pathology (K. Sueishi), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; the School of Pharmaceutical Science (Y.K.), Aichi Gakuin University, Aichi, Japan; and Hosokawa Powder Technology Research Institute (K.H., H.T.), Osaka, Japan
| | - Kaori Hara
- From the Department of Cardiovascular Medicine (M.K., K.E., T.I., J.K., L.C., K.N., T.K., K. Sunagawa), Surgery (S.O., R.T.), and Pathology (K. Sueishi), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; the School of Pharmaceutical Science (Y.K.), Aichi Gakuin University, Aichi, Japan; and Hosokawa Powder Technology Research Institute (K.H., H.T.), Osaka, Japan
| | - Hiroyuki Tsujimoto
- From the Department of Cardiovascular Medicine (M.K., K.E., T.I., J.K., L.C., K.N., T.K., K. Sunagawa), Surgery (S.O., R.T.), and Pathology (K. Sueishi), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; the School of Pharmaceutical Science (Y.K.), Aichi Gakuin University, Aichi, Japan; and Hosokawa Powder Technology Research Institute (K.H., H.T.), Osaka, Japan
| | - Katsuo Sueishi
- From the Department of Cardiovascular Medicine (M.K., K.E., T.I., J.K., L.C., K.N., T.K., K. Sunagawa), Surgery (S.O., R.T.), and Pathology (K. Sueishi), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; the School of Pharmaceutical Science (Y.K.), Aichi Gakuin University, Aichi, Japan; and Hosokawa Powder Technology Research Institute (K.H., H.T.), Osaka, Japan
| | - Ryuji Tominaga
- From the Department of Cardiovascular Medicine (M.K., K.E., T.I., J.K., L.C., K.N., T.K., K. Sunagawa), Surgery (S.O., R.T.), and Pathology (K. Sueishi), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; the School of Pharmaceutical Science (Y.K.), Aichi Gakuin University, Aichi, Japan; and Hosokawa Powder Technology Research Institute (K.H., H.T.), Osaka, Japan
| | - Kenji Sunagawa
- From the Department of Cardiovascular Medicine (M.K., K.E., T.I., J.K., L.C., K.N., T.K., K. Sunagawa), Surgery (S.O., R.T.), and Pathology (K. Sueishi), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; the School of Pharmaceutical Science (Y.K.), Aichi Gakuin University, Aichi, Japan; and Hosokawa Powder Technology Research Institute (K.H., H.T.), Osaka, Japan
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Koga JI, Matoba T, Egashira K, Kubo M, Miyagawa M, Iwata E, Sueishi K, Shibuya M, Sunagawa K. Soluble Flt-1 gene transfer ameliorates neointima formation after wire injury in flt-1 tyrosine kinase-deficient mice. Arterioscler Thromb Vasc Biol 2009; 29:458-64. [PMID: 19164801 DOI: 10.1161/atvbaha.109.183772] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE We have demonstrated that vascular endothelial growth factor (VEGF) expression is upregulated in injured vascular wall, and blockade of VEGF inhibited monocyte infiltration and neointima formation in several animal models. In the present study, we aimed to clarify relative role of two VEGF receptors, flt-1 versus flk-1/KDR, in neointima formation after injury using flt-1 tyrosine kinase-deficient (Flt-1 TK(-/-)) mice and soluble Flt-1(sFlt-1) gene transfer. METHODS AND RESULTS Neointima formation was comparable between wild-type and Flt-1 TK(-/-) mice 28 days after intraluminal wire injury in femoral arteries. By contrast, neointima formation was significantly suppressed by sFlt-1 gene transfer into Flt-1 TK(-/-) mice that blocks VEGF action on flk-1 (intima/media ratio: 2.8+/-0.4 versus 1.4+/-0.4, P<0.05). The inhibition of neointima formation was preceded by significant reduction of monocyte chemoattractant protein (MCP-1) expression in vascular smooth muscle cells (VSMCs) and monocyte infiltration 7 days after injury. Gene transfer of sFlt-1 or treatment of flk-1-specific antibody significantly inhibited VEGF-induced MCP-1 expression determined by RT-PCR in cultured aortic tissue and VSMCs. MCP-1-induced chemotaxis was equivalent between wild-type and Flt-1 TK(-/-) mice. CONCLUSIONS These results suggest that endogenous VEGF accelerates neointima formation through flk-1 by regulating MCP-1 expression in VSMCs and macrophage-mediated inflammation in injured vascular wall in murine model of wire injury.
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Affiliation(s)
- Jun-ichiro Koga
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka 812-8582, Japan
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Koga JI, Egashira K, Matoba T, Kubo M, Ihara Y, Iwai M, Horiuchi M, Sunagawa K. Essential role of angiotensin II type 1a receptors in the host vascular wall, but not the bone marrow, in the pathogenesis of angiotensin II-induced atherosclerosis. Hypertens Res 2009; 31:1791-800. [PMID: 18971558 DOI: 10.1291/hypres.31.1791] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The angiotensin II (Ang II) type 1a (AT1a) receptor is expressed on multiple cell types in atherosclerotic lesions, including bone marrow-derived cells and vascular wall cells, and mediates inflammatory and proliferative responses. Indeed, Ang II infusion accelerates atherogenesis in hyperlipidemic mice by recruiting monocytes and by activating vascular wall cells. Here, we investigated the relative roles of AT1a receptors in the bone marrow vs. the vascular wall in Ang II-induced atherogenesis. Apolipoprotein E-knockout (ApoE(-/-)) mice with or without bone marrow AT1a receptor were generated by experimental bone marrow transplantation using AT1a(+/+) or AT1a(-/-) recipients. In these mice, 28-d Ang II infusion induced significant atherosclerosis in the aorta, and the severity of plaque formation was not affected by the absence of bone marrow AT1a receptor. We then generated AT1a(-/-)ApoE(-/-) mice with or without bone marrow AT1a receptor. Ang II-induced plaque formation was blunted irrespective of the presence of bone marrow AT1a receptor. Host AT1a receptor deficiency was found to suppress Ang II-induced reactive oxygen species production. In addition, AT1a receptor deficiency also impaired monocyte chemoattractant protein-1 (MCP-1) and vascular cell adhesion molecule-1 (VCAM-1) expression in the arterial wall 7 d after Ang II initiation. These molecules normally initiate later macrophage-mediated inflammation in the vascular wall. By contrast, AT1a receptor deficiency in the bone marrow did not affect MCP-1-induced monocyte chemotaxis in vitro. In conclusion, AT1a receptors in the host vascular wall, but not in the bone marrow, are essential in Ang II-induced atherogenesis.
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Affiliation(s)
- Jun-ichiro Koga
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Japan
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15
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Ihara Y, Egashira K, Nakano K, Ohtani K, Kubo M, Koga JI, Iwai M, Horiuchi M, Gang Z, Yamagishi SI, Sunagawa K. Upregulation of the ligand–RAGE pathway via the angiotensin II type I receptor is essential in the pathogenesis of diabetic atherosclerosis. J Mol Cell Cardiol 2007; 43:455-64. [PMID: 17761193 DOI: 10.1016/j.yjmcc.2007.07.044] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2007] [Revised: 06/04/2007] [Accepted: 07/11/2007] [Indexed: 12/22/2022]
Abstract
The receptor for advanced glycation end products (RAGE) and the angiotensin II type I receptor (AT1R) have been separately linked to the pathogenesis of diabetic atherosclerosis. However, no prior study has addressed a linkage between RAGE and AT1R in diabetic atherogenesis. Therefore, we tested the hypothesis that upregulation of the ligand-RAGE axis via AT1R is an essential process underlying the disease. Diabetes was induced in apolipoprotein E-deficient (ApoE(-/-)) mice by streptozotocin, and diabetic mice were treated with AT1 receptor blocker (ARB) for 6 weeks. Diabetic ApoE(-/-) mice that were AT1R-deficient (ApoE(-/-)AT1aR(-/-)) were also investigated. In diabetic ApoE(-/-) mice, AT1R was found to increase within 1 week of diabetes induction, before ligand-RAGE pathway activation and other inflammatory changes were observed. Both ARB treatment and AT1aR deficiency suppressed diabetic atherosclerosis, ligand-RAGE expression and inflammatory changes. In contrast, upregulation of the ligand-RAGE pathway was noted in atherosclerotic plaques from non-diabetic ApoE(-/-) mice infused with angiotensin II. In cultured vascular smooth muscle cells, angiotensin II increased RAGE protein levels via AT1R stimulation. Upregulation of the ligand-RAGE pathway via AT1R is an essential mechanism in diabetic atherosclerosis, implying that ARB might decrease diabetic atherogenesis by inhibiting ligand-RAGE signals.
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MESH Headings
- Adaptor Proteins, Signal Transducing/genetics
- Adaptor Proteins, Signal Transducing/physiology
- Angiotensin II Type 1 Receptor Blockers/pharmacology
- Animals
- Apolipoproteins E/genetics
- Blood Pressure/drug effects
- Cell Proliferation/drug effects
- Cells, Cultured
- Coronary Artery Disease/genetics
- Coronary Artery Disease/metabolism
- Coronary Artery Disease/pathology
- Coronary Artery Disease/physiopathology
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/pathology
- Diabetes Mellitus, Experimental/physiopathology
- Diabetic Angiopathies/genetics
- Diabetic Angiopathies/metabolism
- Diabetic Angiopathies/pathology
- Diabetic Angiopathies/physiopathology
- Glycation End Products, Advanced/metabolism
- Humans
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/drug effects
- Rats
- Receptor for Advanced Glycation End Products
- Receptors, Immunologic/genetics
- Renin-Angiotensin System/drug effects
- Renin-Angiotensin System/physiology
- Signal Transduction/genetics
- Up-Regulation
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Affiliation(s)
- Yoshiko Ihara
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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Koga JI, Ohno M, Okamoto K, Nakasuga K, Ito H, Nagafuji K, Shimono N, Koga H, Hayashida A, Arita T, Maruyama T, Kaji Y, Harada M. Cholesterol embolization treated with corticosteroids--two case reports. Angiology 2005; 56:497-501. [PMID: 16079936 DOI: 10.1177/000331970505600420] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Cholesterol embolization (CE) is a potentially serious complication associated with invasive arterial maneuvers, in which standard therapy has not been established. We experienced two cases of CE in patients with severe atherosclerosis whose renal function deteriorated within a few months after invasive arterial maneuvers. CE was confirmed either by renal biopsy (case 1) or skin biopsy (case 2). Oral administration of prednisolone at a daily dose of 30 mg (0.4 mg/kg) was effective to improve their renal function. Our observation suggests that corticosteroid therapy may be beneficial in some patients with CE.
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Affiliation(s)
- Jun-ichiro Koga
- Department of Medicine and Biosystemic Science, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
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