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Exploring new pathway for the regulation of hepatic gluconeogenesis via microRNAs

Research Project

Project/Area Number 20K08892
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 54040:Metabolism and endocrinology-related
Research InstitutionJichi Medical University

Principal Investigator

Nagashima Shuichi  自治医科大学, 医学部, 准教授 (30406136)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
KeywordsHMG-CoA還元酵素 / スタチン / 糖新生 / 糖尿病 / micro RNA / 肝臓 / 糖代謝 / スクアレン合成酵素 / マイクロRNA / 肝糖新生 / 組織特異的遺伝子欠損 / コレステロール / HMG-CcA還元酵素 / microRNA
Outline of Research at the Start

申請者らはコレステロール合成抑制による肝糖新生の抑制を明らかにし、これにはあるmiR群(以降miR群Aとする)の発現亢進が関与している可能性を見出した。本研究はこの機序を解明する。具体的には、マウスのみならずヒトでもコレステロール合成経路の抑制と糖新生抑制の関連があるのかを検討し、そしてマウスやヒト細胞においてmiR群Aを変化させうる因子の解明し、さらにマウスやヒト細胞におけるmiR群Aの発現の誘導や抑制を行うことで起こりうる変化を検討する。最終的にはマウス生体でmiR群Aの発現の抑制や誘導を行い、miRA群を介したコレステロール合成抑制と糖新生抑制の関連を明らかにする。

Outline of Final Research Achievements

HMG-CoA reductase (HMGCR) and squalene synthase (SS) are the rate-limiting enzyme in the cholesterol synthesis pathway. We showed that liver-specific HMGCR (L-HMGCR) or SS gene knockout mice exhibited low blood glucose with liver injury and genes associated with hepatic glucose production were decreased in the liver. To investigate the role of HMGCR in the hepatic glucose production, we used the RNA-sequencing technology which can generate comprehensive transcriptomic information. We found out that one microRNA cluster miR-96/182/183 was induced in the liver of L-HMGCR knockout and it may reduce the genes for hepatic glucose production.

Academic Significance and Societal Importance of the Research Achievements

コレステロール合成経路を抑制するHMG-CoA還元酵素(HMGCR)阻害薬スタチンによって、耐糖能が悪化することが 明らかになっており、コレステロール代謝と糖代謝の関連性が注目されている。この一方で、我々はコレステロール合成を肝臓で抑制すると血糖が低下し、この機序として、あるmicroRNAクラスターの高発現が肝糖新生を抑制させた可能性を示した。これは新たな糖新生抑制経路の発見、さらには新たな糖尿病治療薬の開発につながる研究成果であり社会的意義は大きいと考えられる。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (20 results)

All 2023 2022 2021 2020

All Journal Article (17 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 17 results,  Open Access: 16 results) Presentation (3 results) (of which Invited: 3 results)

  • [Journal Article] A Novel Missense <i>MEN1</i> Mutation in a Sporadic Case of Multiple Endocrine Neoplasia Type 1 Complicated with Papillary Thyroid Carcinoma2023

    • Author(s)
      Shibuya K, Ebihara K, Takahashi M, Kurashina T, Nagashima S, Okada K, Ishibashi S
    • Journal Title

      JMA Journal

      Volume: 6 Issue: 2 Pages: 216-219

    • DOI

      10.31662/jmaj.2022-0187

    • ISSN
      2433-328X, 2433-3298
    • Year and Date
      2023-04-14
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Retrospective Study of IDegLira, a New Fixed-Ratio Combination, in Japanese Patients With Type 2 Diabetes Mellitus: Analysis of Background Factors Affecting Effectiveness After 6 Months of Treatment.2023

    • Author(s)
      Yamada H, Morimoto J, Funazaki S, Tonezawa S, Takahashi A, Yoshida M, Nagashima S, Hara K
    • Journal Title

      J Clin Med Res

      Volume: 15 Issue: 8-9 Pages: 406-414

    • DOI

      10.14740/jocmr4995

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Retrospective Analysis of the Effectiveness of Oral Semaglutide in Type 2 Diabetes Mellitus and Its Effect on Cardiometabolic Parameters in Japanese Clinical Settings2023

    • Author(s)
      Yamada H, Yoshida M, Funazaki S, Morimoto J, Tonezawa S, Takahashi A, Nagashima S, Masahiko K, Kiyoshi O, Hara K
    • Journal Title

      J Cardiovasc Dev Dis

      Volume: 10 Issue: 4 Pages: 176-176

    • DOI

      10.3390/jcdd10040176

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Correction: Effectiveness and Safety of Once-Weekly Semaglutide in Japanese Patients with Type 2 Diabetes in Treatment Intensification: A Retrospective Observational Single-Center Study2023

    • Author(s)
      Yamada H, Yoshida M, Suzuki D, Funazaki S, Nagashima S, Masahiko K, Kiyoshi O, Hara K
    • Journal Title

      Diabetes Ther

      Volume: 14 Issue: 3 Pages: 619-620

    • DOI

      10.1007/s13300-022-01365-2

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effectiveness and Safety of Once-Weekly Semaglutide in Japanese Patients with Type 2 Diabetes in Treatment Intensification: A Retrospective Observational Single-Center Study.2022

    • Author(s)
      Yamada H, Yoshida M, Suzuki D, Funazaki S, Nagashima S, Masahiko K, Kiyoshi O, Hara K.
    • Journal Title

      Diabetes Ther.

      Volume: 13 Issue: 10 Pages: 1779-1788

    • DOI

      10.1007/s13300-022-01313-0

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Loss of myeloid lipoprotein lipase exacerbates adipose tissue fibrosis with collagen VI deposition and hyperlipidemia in leptin-deficient obese mice2022

    • Author(s)
      Takahashi M, Yamamuro D, Wakabayashi T, Takei A, Takei S, Nagashima S, Okazaki H, Ebihara K, Yagyu H, Takayanagi Y, Onaka T, Goldberg IJ, Ishibashi S.
    • Journal Title

      J Biol Chem

      Volume: 298 Issue: 9 Pages: 102322-102322

    • DOI

      10.1016/j.jbc.2022.102322

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Sex-specific Association of Primary Aldosteronism With Visceral Adiposity.2022

    • Author(s)
      Hatano Y, Sawayama N, Miyashita H, Kurashina T, Okada K, Takahashi M, Matsumoto M, Hoshide S, Sasaki T, Nagashima S, Ebihara K, Mori H, Kario K, Ishibashi S
    • Journal Title

      J Endocr Soc

      Volume: 6 Issue: 8

    • DOI

      10.1210/jendso/bvac098

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] AAA-ATPase valosin-containing protein binds the transcription factor SREBP1 and promotes its proteolytic activation by rhomboid protease RHBDL4.2022

    • Author(s)
      Shibuya K, Ebihara K, Ebihara C, Sawayama N, Isoda M, Yamamuro D, Takahashi M, Nagashima S, Ishibashi S
    • Journal Title

      J Biol Chem

      Volume: 298 Issue: 6 Pages: 101936-101936

    • DOI

      10.1016/j.jbc.2022.101936

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A novel mechanism of imeglimin‐mediated insulin secretion via the cADPR‐TRP channel pathway2022

    • Author(s)
      Funazaki Shunsuke、Yoshida Masashi、Yamada Hodaka、Kakei Masafumi、Kawakami Masanobu、Nagashima Shuichi、Hara Kazuo、Dezaki Katsuya
    • Journal Title

      Journal of Diabetes Investigation

      Volume: 13 Issue: 1 Pages: 34-41

    • DOI

      10.1111/jdi.13669

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Leptin sensitizing effect of 1,3-butanediol and its potential mechanism2021

    • Author(s)
      Masayo Isoda, Ken Ebihara, Nagisa Sawayama, Akiko Murakami, Chihiro Ebihara, Koji Shibuya, Akihito Takei, Shoko Takei, Tetsuji Wakabayashi, Daisuke Yamamuro , Manabu Takahashi, Shuichi Nagashima, Shun Ishibashi
    • Journal Title

      Sci Report

      Volume: 11 Issue: 1 Pages: 17691-17691

    • DOI

      10.1038/s41598-021-96460-y

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A case of insulinoma with hypoglycemia that was better managed with lanreotide than octreotide2021

    • Author(s)
      Yamaoka K, Nagashima S, Okada N, Sawayama N, Saito S, Takahashi M, Okada K, Endo K, Koizumi M, Sasanuma H, Ebihara K, Kasajima A, Fukushima N, Sata N, Ishibashi S.
    • Journal Title

      Clinical Case Reports

      Volume: 9 Issue: 5

    • DOI

      10.1002/ccr3.4118

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Normal plasma apoB48 despite the virtual absence of apoB100 in a compound heterozygote with novel mutations in the MTTP gene.2021

    • Author(s)
      Takahashi M, Ozaki N, Nagashima S, Wakabayashi T, Iwamoto S, Ishibashi S.
    • Journal Title

      J Clin Lipidol.

      Volume: 15 Issue: 4 Pages: 569-573

    • DOI

      10.1016/j.jacl.2021.04.013

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A novel SOX10 nonsense mutation in a patient with Kallmann syndrome and Waardenburg syndrome2021

    • Author(s)
      Wakabayashi Tetsuji、Takei Akihito、Okada Nobukazu、Shinohara Miki、Takahashi Manabu、Nagashima Shuichi、Okada Kenta、Ebihara Ken、Ishibashi Shun
    • Journal Title

      Endocrinology, Diabetes & Metabolism Case Reports

      Volume: 2021

    • DOI

      10.1530/edm-20-0145

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] β-Cell-specific deletion of HMG-CoA (3-hydroxy-3-methylglutaryl-coenzyme A) reductase causes overt diabetes due to reduction of β-cell mass and impaired insulin secretion.2020

    • Author(s)
      Takei Shoko, Nagashima Shuichi, Takei Akihito, Yamamuro Daisuke, Wakabayashi Tetsuji, Murakami Akiko, Isoda Masayo, Yamazaki Hisataka, Ebihara Chihiro, Takahashi Manabu, Ebihara Ken, Dezaki Katsuya, Takayanagi Yuki, Onaka Tatsushi, Fujiwara Ken, Yashiro Takashi, Ishibashi Shun
    • Journal Title

      Diabetes

      Volume: 69 Issue: 11 Pages: 2352-2363

    • DOI

      10.2337/db19-0996

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Esterification of 4β-hydroxycholesterol and other oxysterols in human plasma occurs independently of LCAT2020

    • Author(s)
      Yamamuro Daisuke、Yamazaki Hisataka、Osuga Jun-ichi、Okada Kenta、Wakabayashi Tetsuji、Takei Akihito、Takei Shoko、Takahashi Manabu、Nagashima Shuichi、Holleboom Adriaan G.、Kuroda Masayuki、Bujo Hideaki、Ishibashi Shun
    • Journal Title

      Journal of Lipid Research

      Volume: 61 Issue: 9 Pages: 1287-1299

    • DOI

      10.1194/jlr.ra119000512

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Peripheral circadian rhythms in the liver and white adipose tissue of mice are attenuated by constant light and restored by time-restricted feeding2020

    • Author(s)
      Yamamuro Daisuke、Takahashi Manabu、Nagashima Shuichi、Wakabayashi Tetsuji、Yamazaki Hisataka、Takei Akihito、Takei Shoko、Sakai Kent、Ebihara Ken、Iwasaki Yusaku、Yada Toshihiko、Ishibashi Shun
    • Journal Title

      PLOS ONE

      Volume: 15 Issue: 6 Pages: e0234439-e0234439

    • DOI

      10.1371/journal.pone.0234439

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Long‐term efficacy of the sodium?glucose cotransporter?2 inhibitor, ipragliflozin, in a case of type?A insulin resistance syndrome2020

    • Author(s)
      Nagashima Shuichi、Wakabayashi Tetsuji、Saito Naoko、Takahashi Manabu、Okada Kenta、Ebihara Ken、Ishibashi Shun
    • Journal Title

      Journal of Diabetes Investigation

      Volume: 11 Issue: 5 Pages: 1363-1365

    • DOI

      10.1111/jdi.13241

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] マクロファージにおけるHMG-CoA還元酵素欠損2023

    • Author(s)
      永島 秀一
    • Organizer
      第55回日本動脈硬化学会総会・学術集会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 膵 β 細胞の HMG-CoA 還元酵素欠損は膵 β 細胞の減少とインスリン分泌能の低下による 糖尿病を誘発する2021

    • Author(s)
      永島秀一
    • Organizer
      第64回日本糖尿病学会年次学術集会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 第41回日本肥満学会・第38回日本肥満症治療学会2021

    • Author(s)
      永島 秀一
    • Organizer
      脂肪組織マクロファージのHMG-CoA還元酵素は食事誘発性肥満のインスリン抵抗性を改善する
    • Related Report
      2020 Research-status Report
    • Invited

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Published: 2020-04-28   Modified: 2025-01-30  

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