The elucidation of the role of chronic inflammation in heart failure.
Project/Area Number |
24390064
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
General pharmacology
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Research Institution | Shitennoji University (2014) Osaka City University (2012-2013) |
Principal Investigator |
IWAO Hiroshi 四天王寺大学, 教育学部, 教授 (00137192)
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Co-Investigator(Kenkyū-buntansha) |
IZUMI Yasukatsu 大阪市立大学, 大学院医学研究科, 准教授 (10347495)
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Project Period (FY) |
2012-04-01 – 2015-03-31
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Project Status |
Completed (Fiscal Year 2014)
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Budget Amount *help |
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2014: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2012: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
|
Keywords | マクロファージ / エクソソーム / 心リモデリング / 内皮細胞 / HIF-1alpha / HSP70 |
Outline of Final Research Achievements |
Hypertension is one of the most important cardiovascular risk factors, and results in macrophage infiltration into the tissues. Here, we investigated the role of exosome, one of extracellular vesicles, in the inflammatory pathways of endothelial cells (ECs) under hypertensive conditions. Exosomes were purified by ultracentrifugation. The exosomes isolated from angiotensin II-infused rat serum abundantly contained macrophage marker proteins, CD68 and CD45. Moreover, exosomes from hypertensive rat serum immediately activated intracellular signals such as c-jun N-terminal kinase and p38 mitogen-activated protein kinase, and upregulated the expression of intracellular adhesion molecule-1 in ECs. Interestingly, exosomes from THP-1-derived macrophages stimulated by Angiotensin II also activated these signaling pathways in ECs. These results suggest that macrophage-derived exosomes under hypertensive conditions activate the inflammatory pathway in ECs, leading to cardiovascular remodeling.
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Report
(4 results)
Research Products
(44 results)
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[Journal Article] Myeloid HIF-1 attenuates the progression of renal fibrosis in murine obstructive nephropathy.2015
Author(s)
Tateishi,Y, Osada-Oka M, Tanaka M, Shiota M, Izumi Y, Ishimura E, Motoyama K, Inaba M, Miura, K.
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Journal Title
J Pharmacol Sci
Volume: 127
Issue: 2
Pages: 181-189
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Establishment of neutralizing rat monoclonal antibodies for fibroblast growth factor-22014
Author(s)
Tanaka M, Yamaguchi M, Shiota M, Kawamoto Y, Takahashi K, Inagaki A, Osada-Oka M, Harada A, Wanibuchi H, Izumi Y, Miura K, Iwao H, Ohkawa Y.
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Journal Title
Monoclon Antib Immunodiagn Immunother
Volume: 33
Issue: 4
Pages: 261-269
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Hsc70 contributes to cancer cell survival by preventing Rab1A degradation under stress conditions.2014
Author(s)
Tanaka M, Mun S, Harada A, Ohkawa Y, Inagaki A, Sano S, Takahashi K, Izumi Y, Osada-Oka M, Wanibuchi H, Yamagata M, Yukimura T, Miura K, Shiota M, Iwao H.
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Journal Title
PLoS One
Volume: 9
Issue: 5
Pages: e96785-e96785
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Lipid synthesis is promoted by hypoxic adipocyte-derived exosomes in 3T3-L1cells2014
Author(s)
Sano S, Izumi Y, Yamaguchi T, Yamazaki T, Tanaka M, Shiota M, Osada-Oka M, Nakamura Y, Wei M, Wanibuchi H, Iwao H, Yoshiyama M.
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Journal Title
Biochem Biophys Res Commun.
Volume: 445
Issue: 2
Pages: 327-33
DOI
Related Report
Peer Reviewed
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[Journal Article] Tolvaptan Attenuates Left Ventricular Fibrosis After Acute Myocardial Infarction in Rats2013
Author(s)
Yamazaki T, Nakamura Y, Shiota M, Osada-Oka M, Fujiki H, Hanatani A, Shimada K, Miura K, Yoshiyama M, Iwao H, Izumi Y.
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Journal Title
Journal of Pharmacological Sciences
Volume: 123
Issue: 1
Pages: 58-66
DOI
NAID
ISSN
1347-8613, 1347-8648
Related Report
Peer Reviewed
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[Presentation] The role of macrophage-derived exosomes in hypertension.2014
Author(s)
Takehiro Yamaguchi, Hiroshi Iwao, Mayuko Osada-Oka, Masayuki Shiota, Masako Tanaka, Katsuyuki Miura, Minoru Yoshiyama, Yasukatsu Izumi
Organizer
European Society of Hypertension/International Society of Hypertension 2014
Place of Presentation
Megaron Athens International Cnferebce Centre(アテネ・ギリシャ)
Year and Date
2014-06-13 – 2014-06-16
Related Report
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[Presentation] A nitric oxide synthase inhibitor accelerates high fat diet-induced arteriosclerosis in extremely small size minipig, Microminipig.2014
Author(s)
Yasukatsu Izumi, TakehiroYamaguchi, Takanori Yamazaki, Hiroaki Kawaguchi, Masashi Tawa, Masayuki Shiota, Akihide Tanimoto, Tomio Okamura, Minoru Yoshiyama, Hiroshi Iwao
Organizer
第18回国際血管生物学会
Place of Presentation
都メッセ京都(京都府・京都市)
Year and Date
2014-04-14 – 2014-04-17
Related Report
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