Contribution of novel MR cofactor CASZ1 to onset of hypertension
Project/Area Number |
25461254
|
Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Kidney internal medicine
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Research Institution | Keio University |
Principal Investigator |
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Project Period (FY) |
2013-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2015)
|
Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
|
Keywords | 高血圧 / MR / ミネラルコルチコイド |
Outline of Final Research Achievements |
Mineralocorticoid receptor belongs to the nuclear hormone receptor superfamily and serves as an aldosterone-induced transcriptional factor. However, molecular mechanism mediated through MR is barely known. To address this issue, we tried to identify novel MR co-regulators using HEK293 cells by a biochemical approach with LC-MS/MS analysis. A novel protein CASZ1 interacted with MR in vivo and was co-localized with MR in rat renal tubule. To address physiological significance of CASZ1, we generated renal tubule specific Casz1 knockout mouse. These mouse showed hypertensive phenotype compared with control(sBP cont. 115±3.8 VS cKO 135±3.3 mmHg:p<0.01)under DOCA+salt loading. Urinary potassium excretion was also increased compared with control (K/Cr ratio cont. 5.959±1.390 VS cKO 9.72±0.499:p<0.05). These data suggested activation of aldosterone action in the knockout mouse. In conclusion, CASZ1 is a novel MR co-repressor and plays important role in pathophysiology of hypertension.
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Report
(4 results)
Research Products
(8 results)
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[Journal Article] A case report: Nodule development from subcapsular aldosterone-producing cell clusters causes hyperaldosteronism2016
Author(s)
Nishimoto K, Seki T, Kurihara I, Yokota K, Omura M, Nishikawa T, Shibata H, Kosaka T, Oya M, Suematsu M, Mukai K
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Journal Title
J Clin Endocrinol Metab
Volume: 101
Issue: 1
Pages: 6-9
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Presentation] 複数の腫瘍があるPAにおける超選択的副腎静脈サンプリングの意義2015
Author(s)
大嶋 洋佑, 栗原 勲, 宮下 和季, 小林 佐紀子, 横田 健一, 城 理絵, 門松 賢, 武田 彩乃, 小黒 草太, 宮嶋 哲, 亀山 香織, 伊藤 裕
Organizer
日本内分泌学会
Place of Presentation
ホテルニューオータニ(東京都千代田区)
Year and Date
2015-04-23
Related Report
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[Presentation] GH自体が脳梗塞発症のリスクファクターとして疑われた先端巨大症の1例2015
Author(s)
住谷 智恵子, 横田 健一, 栗原 勲, 宮下 和季, 中島 裕也, 小林 佐紀子, 乃村 元子, 中村 俊文, 高畑 尚, 戸田 正博, 亀山 香織, 伊藤 裕
Organizer
日本内分泌学会
Place of Presentation
ホテルニューオータニ(東京都千代田区)
Year and Date
2015-04-23
Related Report
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