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The elucidation of the mechanism of Kdm5a, the histone-modifying enzyme, aimed at epigenetic drug discovery for testicular dysfunction

Research Project

Project/Area Number 18K09202
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56030:Urology-related
Research InstitutionNagoya City University

Principal Investigator

Nishio Hidenori  名古屋市立大学, 医薬学総合研究院(医学), 助教 (10621063)

Co-Investigator(Kenkyū-buntansha) 安井 孝周  名古屋市立大学, 医薬学総合研究院(医学), 教授 (40326153)
林 祐太郎  名古屋市立大学, 医薬学総合研究院(医学), 教授 (40238134)
水野 健太郎  名古屋市立大学, 医薬学総合研究院(医学), 准教授 (70448710)
神沢 英幸  名古屋市立大学, 医薬学総合研究院(医学), 研究員 (00551277)
守時 良演  名古屋市立大学, 医薬学総合研究院(医学), 研究員 (50595395)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords造精機能障害 / ヒストン修飾 / エピジェネティクス / エピゲノム / 精子形成障害 / 停留精巣 / 精子幹細胞
Outline of Final Research Achievements

Mouse spermatogonial GC-1 cells were transfected with Kdm5a expression vectors. We performed a microarray analysis to clarify the underlying regulatory mechanisms of Kdm5a overexpression. Moreover, we identified the pathways that were altered by Kdm5a expressions using the IPA (Ingenuity Pathways Analysis) software. The IPA showed a Kdm5a-activated pathway of the “Actin Cytoskeleton Signaling,” which included Ret. Because RET receptors colocalize with Gfra1 in the spermatogonial stem cells and Gdnf- signaling via the RET-tyrosine-kinase/Gfra1 receptor complex is required for spermatogonial stem cell self-renewal, it is suggested that Kdm5a regulates the differentiation from gonocytes to spermatogonia via activation of the “Actin Cytoskeleton Signaling” pathway.

Academic Significance and Societal Importance of the Research Achievements

本研究で、造精機能障害モデルである停留精巣ラットで発現亢進するKdm5a遺伝子が高発現することによって、精子形成に関連する遺伝子群の発現異常が生じることが明らかとなった。男性不妊症における造精機能障害の原因は明らかでないため、造精機能障害を回復する根本的な治療法は存在しないが、この精子形成に関連する遺伝子群に対する治療薬の開発により、今後の男性不妊症に対する新規治療薬の開発が期待される。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (20 results)

All 2021 2020 2019 2018

All Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 7 results,  Open Access: 6 results) Presentation (13 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] A novel method of transvesicoscopic ureteral reimplantation of an ectopic ureter with a mate ureter in a duplex kidney2021

    • Author(s)
      Nishio H, Mizuno K, Matsumoto D, Kato T, Hideyuki K, Satoshi K, Maruyama T, Yasui T, Hayashi Y.
    • Journal Title

      IJU Case Reports

      Volume: 5 Issue: 2 Pages: 132-135

    • DOI

      10.1002/iju5.12401

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A case of posterior urethral valve identified in an older child by straining to void2021

    • Author(s)
      Nishio H, Mizuno K, Kato T, Maruyama T, Yasui T, Hayashi Y.
    • Journal Title

      Urology Case Reports

      Volume: 40 Pages: 101886-101886

    • DOI

      10.1016/j.eucr.2021.101886

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Low Serum Inhibin B/Follicle-Stimulating Hormones and Anti-Mullerian Hormone/Follicle-Stimulating Hormones Ratios as Markers of Decreased Germ Cells in Infants with Bilateral Cryptorchidism2021

    • Author(s)
      Kato T, Mizuno K, Matsumoto D, Nishio H, Nakane A, Kurokawa S, Kamisawa H, Maruyama T, Iwatsuki S, Umemoto Y, Yasui T, Hayashi Y
    • Journal Title

      J Urology

      Volume: 207 Issue: 3 Pages: 701-709

    • DOI

      10.1097/ju.0000000000002344

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Urodynamic effectiveness of a beta-3 adrenoreceptor agonist (vibegron) for a pediatric patient with anticholinergic-resistant neurogenic detrusor overactivity: a case report2021

    • Author(s)
      Kato T, Mizuno K, Nishio H, Yasui T, Hayashi Y.
    • Journal Title

      Journal of Medical Case Reports

      Volume: 15 Issue: 1 Pages: 86-86

    • DOI

      10.1186/s13256-020-02564-w

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Antireflux endoscopic injection therapy in postpubertal patients via techniques adopted for the dilated ureteral orifice2021

    • Author(s)
      Maruyama T, Mizuno K, Nishio H, Kato T, Hamakawa T, Ikegami Y, Yasui T, Hayashi Y.
    • Journal Title

      BMC Urology

      Volume: 21 Issue: 1 Pages: 70-75

    • DOI

      10.1186/s12894-021-00842-3

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Robot-Assisted Radical Cystectomy for Pediatric Bladder Rhabdomyosarcoma.2020

    • Author(s)
      Nishio H, Mizuno K, Kawase K, Kato T, Kamisawa H, Kurokawa S, Nakane A, Ando R, Maruyama T, Yasui T, Hayashi Y.
    • Journal Title

      J Endourol Case Rep.

      Volume: 6 Issue: 4 Pages: 461-464

    • DOI

      10.1089/cren.2020.0116

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Detailed presurgical evaluation of a case of congenital bladder diverticulum2019

    • Author(s)
      Nishio Hidenori、Mizuno Kentaro、Kamisawa Hideyuki、Nakagawa Motoo、Yasui Takahiro、Hayashi Yutaro
    • Journal Title

      Urology Case Reports

      Volume: 27 Pages: 100905-100905

    • DOI

      10.1016/j.eucr.2019.100905

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 停留精巣における造精機能障害・悪性化の原因遺伝子の探索~ヒト停留精巣組織を用いた Ingenu- ity Pathway Analysis による解析~2021

    • Author(s)
      西尾 英紀、水野 健太郎、松本 大輔、加藤 大貴、中根 明宏、丸山 哲史、安井 孝周、林 祐太郎
    • Organizer
      第109回日本泌尿器科学会総会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 遺伝子解析に基づいた小児腎腫瘍の治療戦略2021

    • Author(s)
      西尾 英紀、水野 健太郎、安井 孝周、林 祐太郎
    • Organizer
      第29回日本小児泌尿器科学会総会・学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] テストステロン投与は陰茎包皮組織において慢性炎症・線維化を引き起こす2021

    • Author(s)
      西尾 英紀、水野 健太郎、安井 孝周、林 祐太郎
    • Organizer
      第30回日本小児泌尿器科学会総会・学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Kdm5a activates the protein kinase A signaling pathway in mouse spermatogonial GC-1 cells2020

    • Author(s)
      Nishio Hidenori, Mizuno Kentaro, Kato Taiki, Kamisawa Hideyuki, Kurokawa Satoshi, Nakane Akihiro, Maruyama Tetsuji, Yasui Takahiro, Hayashi Yutaro
    • Organizer
      American Urological Association Annual Meeting 2020(web開催)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] The patency rate of processus vaginalis is higher in patients with retractile testes than descended testes2020

    • Author(s)
      Nishio Hidenori, Mizuno Kentaro, Kato Taiki, Kamisawa Hideyuki, Kurokawa Satoshi, Nakane Akihiro, Maruyama Tetsuji, Yasui Takahiro, Hayashi Yutaro
    • Organizer
      American Urological Association Annual Meeting 2020(web開催)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 造精機能障害に対するエピゲノム創薬を目指したヒストン修創酵素Kdm5aの基礎的研究2019

    • Author(s)
      西尾英紀
    • Organizer
      第107回日本泌尿器科学会総会
    • Related Report
      2019 Research-status Report
  • [Presentation] 当科における小児精巣腫瘍10例の臨床的検討2019

    • Author(s)
      西尾英紀、水野健太郎、内木拓、中根明宏、河合憲康、戸澤啓一、安井孝周、林祐太郎
    • Organizer
      第107回日本泌尿器科学会総会
    • Related Report
      2019 Research-status Report
  • [Presentation] 膀胱尿管逆流に対するロボット支援逆流防止術2019

    • Author(s)
      西尾英紀、水野健太郎、林祐太郎、加藤大貴、中根明宏、丸山哲史、戸澤啓一、安井孝周
    • Organizer
      第107回日本泌尿器科学会総会
    • Related Report
      2019 Research-status Report
  • [Presentation] 停留精巣における造精機能の回復を目指した基礎的研究~ヒストン修飾による精子幹細胞分化機序の解明~2019

    • Author(s)
      西尾英紀、水野健太郎、丸山哲史、林祐太郎
    • Organizer
      第28回日本小児泌尿器科学会総会・学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] ロボット膀胱全摘除を行った膀胱横紋筋肉腫の1例2019

    • Author(s)
      西尾英紀、水野健太郎、安井孝周、林祐太郎
    • Organizer
      第28回日本小児泌尿器科学会総会・学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] AYA世代に対応した小児泌尿器科腫瘍の診療2019

    • Author(s)
      西尾英紀、水野健太郎、林祐太郎、中根明宏、丸山哲史、安井孝周
    • Organizer
      第69回日本泌尿器科学会中部総会
    • Related Report
      2019 Research-status Report
  • [Presentation] 集学的治療を行った小児腎芽腫の1例2019

    • Author(s)
      34.西尾英紀、水野健太郎、加藤大貴、吉田悟、亀井美智、戸澤啓一、安井孝周、林祐太郎
    • Organizer
      第69回日本泌尿器科学会中部総会
    • Related Report
      2019 Research-status Report
  • [Presentation] 停留精巣の基礎研究~エピジェネティックな精子幹細胞分化障害からみた停留精巣における造精機能障害の解明~2018

    • Author(s)
      西尾英紀、水野健太郎、丸山哲史、林祐太郎
    • Organizer
      第27回日本小児泌尿器科学会総会・学術集会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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