Type B Human Natriuretic Peptide Receptor with a novel gain-of-function mutation provides therapeutic potential in the treatment of pulmonary arterial hypertension.
Project/Area Number |
23591567
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Pediatrics
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Research Institution | Osaka University |
Principal Investigator |
KOGAKI Shigetoyo 大阪大学, 医学(系)研究科(研究院), 講師 (00311754)
|
Co-Investigator(Kenkyū-buntansha) |
TAKAHASHI Kunihiko 大阪大学, 医学(系)研究科(研究院), 特任助教(常勤) (10610230)
ICHIMORI Hiroaki 大阪大学, 医学部附属病院, 医員 (60467553)
NAWA Nobutoshi 大阪大学, 医学部附属病院, 医員 (30617543)
ISHIDA Hidekazu 大阪大学, 医学部附属病院, 医員 (50467552)
|
Project Period (FY) |
2011 – 2013
|
Project Status |
Completed (Fiscal Year 2013)
|
Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
|
Keywords | 肺高血圧症 / CNP / ナトリウム利尿ペプチド受容体 / cGMP / PAH |
Research Abstract |
Recently, we have reported a novel missense mutation in the NPR-B gene (2647G>A; Val 883 Met) in a family case showing overgrowth and bone anomalies.We have found that overexpression of the mutated protein in human pulmonary artery smooth muscle cells (PASMCs) induced significant increase in cGMP levels compared to WT-NPR-B or GFP control in a ligand-independent manner. Overexpression of Mut-NPR-B suppressed proliferation in PASMCs. In vivo, rats treated with the combination of SU5416 and hypoxia developed pulmonary hypertension, right ventricular hypertrophy and pulmonary vascular obstructive lesions. Intratracheal administration of adenoviral vectors carrying Mut-NPR-B resulted in tendency toward an improvement in vascular remodeling as measured by medial wall thickness of pulmonary vessels compared to WT-NPR-B or GFP control (GFP, 52+-13%; WT-NPR-B, 50+-4%; Mut-NPR-B, 44+-2 %, n=4).
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Report
(4 results)
Research Products
(11 results)
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[Presentation] C-type natriuretic peptide (CNP)受容体(NPR-B)の機能獲得型変異体を用いた、肺動脈性高血圧症(PAH)に対する新たな治療アプローチ2013
Author(s)
那波伸敏,石田秀和,馬殿洋樹,高橋邦彦,小垣滋豊,市森裕章,内川俊毅,石井良,髭野亮太,岡田陽子,三浦弘司,大薗恵一
Organizer
第19回日本小児肺循環研究会
Place of Presentation
東京
Year and Date
2013-02-02
Related Report
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[Presentation] Therapeutic Application of Type B Natriuretic Peptide Receptor With a Novel Gain-of-function Mutation in the Treatment of Pulmonaly Arterial Hypertension2013
Author(s)
Nawa N, Ishida H, Baden H, Takahashi K, Kogaki S, Yabushita-Okada Y, Ichimori H, Ishii R, Mihara S, Higeno R, Miura K, Ozono K.
Organizer
American Heart Association, Scientiic Sessions 2013
Place of Presentation
米国Dallas
Related Report
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[Presentation] C-type natriuretic peptide(CNP)受容体(NPR-B)の機能獲得型変異体を用いた、肺高血圧症に対する新たな治療アプローチ(第3報)2013
Author(s)
那波伸敏,石田秀和,馬殿洋樹,高橋邦彦,小垣滋豊,市森裕章,石井良,髭野亮太,藪下陽子,三浦弘司,大薗恵一
Organizer
第49回日本小児循環器学会総会
Place of Presentation
東京
Related Report
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[Presentation] Therapeutic application of type B natriuretic peptide receptor with a novel gain-of-function mutation in the treatment of pulmonary arterial hypertension2013
Author(s)
Nawa N, Ishida H, Baden H, Takahashi K, Kogaki S, Yabushita-Okada Y, Ichimori H, Ishii R, Mihara S, Higeno R, Miura K, Ozono K
Organizer
American Heart Association, Scientiic Sessions 2013
Place of Presentation
Dallas, Texas(アメリカ合衆国)
Related Report
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[Presentation] C-type natriuretic peptide (CNP)受容体(NPR-B)の機能獲得型変異体を用いた,肺動脈高血圧症(PAH)に対する新たな治療アプローチ2012
Author(s)
那波伸敏,石田秀和,高橋邦彦,小垣滋豊,市森裕章,内川俊毅,成田淳,岡田陽子,三浦弘司,大薗恵一
Organizer
第18回日本小児肺循環研究会
Place of Presentation
東京
Year and Date
2012-02-04
Related Report
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[Presentation] C-type natriuretic peptide(CNP)受容体(NPR-B)の機能獲得型変異体を用いた、肺動脈性肺高血圧症に対する新たな治療アプローチ(第2報)2012
Author(s)
那波伸敏,石田秀和,高橋邦彦,小垣滋豊,市森裕章,内川俊毅,藪下陽子,三原聖子,馬殿洋樹,三浦弘司,大薗恵一
Organizer
第48回日本小児循環器学会学術集会
Place of Presentation
京都
Related Report
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