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Elucidation of physiological roles of acid-sensitive anion channels in cell survival

Research Project

Project/Area Number 17K08554
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field General physiology
Research InstitutionFukuoka University

Principal Investigator

Sato-Numata Kaori  福岡大学, 医学部, その他 (60614196)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsアシドーシス / アニオンチャネル / 酸性
Outline of Final Research Achievements

We performed to reveal the physiological function of the acid-activated anion channel (ASOR), which contribute to survival, and the molecular identity of ASOR. First, we created down candidate molecule A knockout cells (KO cells). As a result of a comparative experiment of KO cells and wild type cells (WT cells), it was revealed that the proliferation rate of KO cells was lower than that of WT cells and the cross-sectional area of KO cells was larger than that of WT cells. Also, we examined whether TMEM206, one of the molecular candidates for ASOR reported in a recent study, is actually candidate for ASOR in human cervix HeLa cells. It was found that the ASOR current of the TMEM206 knockdown HeLa cell was significantly suppressed compared to the ASOR current of the control HeLa cell.

Academic Significance and Societal Importance of the Research Achievements

本研究課題で私たちが作成した候補分子Aのノックアウト細胞(KO細胞)は、細胞増殖率と細胞断面積において、野生株細胞(WT細胞)と比べて明らかに差があることが明らかになった。このKO細胞とWT細胞との比較実験は、ほかにも様々な点において比較検証する必要があり、これらを明らかにすることで候補分子Aの生存に寄与する生理学的役割が新たに明らかになることが期待できる。また、パッチクランプ法により確認されたもう一つの候補分子TMEM206において、候補分子Aとの相互作用については今後の研究課題として残ったが、複雑なASOR分子実態を解明するうえで大きな手掛かりを得ることができた。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (10 results)

All 2020 2019 2018

All Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (5 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Herbal components of Japanese Kampo medicines exert laxative actions in colonic epithelium cells via activation of BK and CFTR channels2019

    • Author(s)
      Numata Tomohiro、Sato-Numata Kaori、Okada Yasunobu
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 15554-15554

    • DOI

      10.1038/s41598-019-52171-z

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] TRPM7 is involved in acid-induced necrotic cell death in a manner sensitive to progesterone in human cervical cancer cells2019

    • Author(s)
      Numata Tomohiro、Sato-Numata Kaori、Okada Yasunobu
    • Journal Title

      Physiological Reports

      Volume: 7 Issue: 13

    • DOI

      10.14814/phy2.14157

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cell Volume-Activated and -Correlated Anion Channels in Mammalian Cells: Their Biophysical, Molecular and Pharmacological Properties.2019

    • Author(s)
      Y. Okada, T. Okada, K.S. Numata, M.R. Islam, Y.A. Akatsuka, T. Numata, M. Kubo, T. Shimizu, R.S. Kurbannazarova, Y. Marunaka, and R.Z. Sabirov
    • Journal Title

      Pharmacological Reviews

      Volume: 71 Issue: 1 Pages: 49-88

    • DOI

      10.1124/pr.118.015917

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Roles of volume-regulatory anion channels, VSOR and Maxi-Cl, in apoptosis, cisplatin resistance, necrosis, ischemic cell death, stroke and myocardial infarction2019

    • Author(s)
      Yasunobu Okada, Tomohiro Numata, Kaori Sato-Numata, Ravshan Z. Sabirov, Hongtao Liu, Shin-ichiro Mori, and Shigeru Morishima
    • Journal Title

      Current Topics in Membranes

      Volume: 印刷中 Pages: 205-283

    • DOI

      10.1016/bs.ctm.2019.03.001

    • ISBN
      9780128177648
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Cellular mechanism for herbal medicine Junchoto to facilitate intestinal Cl-/water secretion that involves cAMP-dependent activation of CFTR2018

    • Author(s)
      Tomohiro Numata, Kaori Sato-Numata, Yasunobu Okada, Ryuji Inoue
    • Journal Title

      Journal of Natural Medicines

      Volume: 印刷中 Issue: 3 Pages: 694-705

    • DOI

      10.1007/s11418-018-1207-9

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Ni+-sensitive Ca2+ channels are involved in the exocytotic secretion from somata/dendrites in vasopressin neurons2020

    • Author(s)
      佐藤(沼田)かお理、沼田 朋大、上田 陽一、岡田 泰伸
    • Organizer
      第97回日本生理学会合同大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Sensitivity of voltage-dependent Ca2+ channels in rat AVP neurons to an anthranilic acid derivative2019

    • Author(s)
      Kaori Sato-Numata, Tomohiro Numata, Yoichi Ueta, Yasunobu Okada
    • Organizer
      第9回アジア・オセアニア生理学会連合大会&第96回日本生理学会合同大会
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] AVP産生ニューロンからの浸透圧応答性AVP分泌と容積調節メカニズム2018

    • Author(s)
      佐藤(沼田)かお理
    • Organizer
      第3回 イオンチャネル研究会
    • Related Report
      2018 Research-status Report
  • [Presentation] Ionic mechanisms of cell volume regulation under hypo/hyperosmotic conditions in AVP neurons and effects of AVP secretion thereon2018

    • Author(s)
      Kaori Sato-Numata, Naomi Yasui, Tomohiro Numata, Yoichi Ueta, Yasunobu Okada
    • Organizer
      第41回 日本神経科学大会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Properties and roles of flufenamate-sensitive ion channels stimulated by hyperosmolality in vasopressin neurons2018

    • Author(s)
      佐藤(沼田)かお理, 沼田朋大,上田陽一, 井上隆司,岡田泰伸
    • Organizer
      第95回 日本生理学会大会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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