Aldosterone production mechanisms mediated by ER calcium ion regulation.
Project/Area Number |
17K09883
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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 |
Endocrinology
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Research Institution | Hiroshima University |
Principal Investigator |
OKI KENJI 広島大学, 病院(医), 講師 (30638995)
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Project Period (FY) |
2017-04-01 – 2020-03-31
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Project Status |
Completed (Fiscal Year 2019)
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Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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Keywords | アルドステロン / 原発性アルドステロン症 / カルシウムシグナル / 二次性高血圧 / CALN1 / アンギオテンシンII / シグナル伝達 |
Outline of Final Research Achievements |
Transcriptome analysis using aldosterone-producing adenomas revealed that CALN1 gene had the strongest correlation with CYP11B2 (aldosterone synthase) among genes encoding Ca2+ binding proteins. We modulated CALN1 in human adrenocortical carcinoma (HAC15) cells, and it showed increased Ca 2+ in the endoplasmic reticulum (ER). CYP11B2 expression and aldosterone production were potentiated in HAC15 cells by CALN1 expression. The silencing of CALN1 decreased Ca2+ in ER, and abrogated KCNJ5 mutation-mediated aldosterone production in HAC15 cells.
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Academic Significance and Societal Importance of the Research Achievements |
本研究により,細胞内カルシウムシグナルを介したアルドステロン合成機構の一端を解明することができた.CALN1は小胞体内の貯蔵カルシウムイオンを増加させ,さらには,細胞質内カルシウムシグナルを活性化させることによりアルドステロン合成を促進させる.CALN1を抑制することにより,原発性アルドステロン症(PA)におけるアルドステロン合成を抑制できる可能性があり,今後,CALN1を標的としたアルドステロン合成阻害薬に繋がる可能性がある.PAにおけるアルドステロン合成抑制薬の解明は,本邦での有病率が200~400万人と推定されるPAの診断や治療薬にも結びつく可能性がある.
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Report
(4 results)
Research Products
(39 results)
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[Journal Article] Endoplasmic Reticulum Chaperone Calmegin Is Upregulated in Aldosterone-Producing Adenoma and Associates With Aldosterone Production.2020
Author(s)
Itcho K, Oki K, Gomez-Sanchez CE, Gomez-Sanchez EP, Ohno H, Kobuke K, Nagano G, Yoshii Y, Baba R, Hattori N, Yoneda M.
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Journal Title
Hypertension
Volume: 75
Issue: 2
Pages: 492-499
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] A Rare Case of IgG4-Related Disease Presenting as a Unilateral Severe Dacryoadenitis Complicated by Hypophysitis and Hypertrophic Pachymeningitis.2020
Author(s)
Yoshida Y, Kondo T, Hosokawa Y, Oki K, Yukawa K, Araki K, Kohno H, Kuranobu T, Tokunaga T, Oi K, Sugimoto T, Oda K, Nojima T, Hirata S, Sugiyama E.
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Journal Title
J Clin Rheumatol
Volume: -
Issue: 8S
Pages: S571-S573
DOI
Related Report
Peer Reviewed
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[Journal Article] Eplerenone improves endothelial function and arterial stiffness and inhibits Rho-associated kinase activity in patients with idiopathic hyperaldosteronism: a pilot study.2019
Author(s)
Kishimoto S, Oki K, Maruhashi T, Kajikawa M, Matsui S, Hashimoto H, Takaeko Y, Kihara Y, Chayama K, Goto C, Aibara Y, Yusoff FM, Nakashima A, Noma K, Liao JK, Higashi Y.
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Journal Title
J Hypertens
Volume: 37
Issue: 5
Pages: 1083-1095
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] NFIA co-localizes with PPARγ and transcriptionally controls the brown fat gene program.2017
Author(s)
Hiraike Y, Waki H, Yu J, Nakamura M, Miyake K, Nagano G, Nakaki R, Suzuki K, Kobayashi H, Yamamoto S, Sun W, Aoyama T, Hirota Y, Ohno H, Oki K, Yoneda M, White AP, Tseng YH, Cypess AM, Larsen TJ, Jespersen NZ, Scheele C, Tsutsumi S, Aburatani H, Yamauchi T, Kadowaki T
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Journal Title
Nature cell biology
Volume: 19(9)
Issue: 9
Pages: 1081-1092
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Association between Serum Elaidic Acid Concentration and Insulin Resistance in Two Japanese Cohorts with Different Lifestyles2017
Author(s)
Itcho K, Yoshii Y, Ohno H, Oki K, Shinohara M, Irino Y, Toh R, Ishida T, Hirata KI, Yoneda M.
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Journal Title
Journal of Atherosclerosis and Thrombosis
Volume: 24
Issue: 12
Pages: 1206-1214
DOI
NAID
ISSN
1340-3478, 1880-3873
Related Report
Peer Reviewed / Open Access
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