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Elucidation of heterozygous deletion mechanism of MEN1 gene in multiple endocrine neoplasia type 1

Research Project

Project/Area Number 20K08901
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 InstitutionGunma University

Principal Investigator

Ozawa Atsushi  群馬大学, 大学院保健学研究科, 教授 (10573496)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords遺伝子 / 腫瘍症候群 / マウス / 遺伝性腫瘍症候群 / 神経内分泌腫瘍 / モデルマウス
Outline of Research at the Start

多発性内分泌腫瘍症1型(MEN1型)の原因遺伝子MEN1は癌抑制遺伝子であり、腫瘍発症機構はKnudsonのtwo-hit theoryに従うと考えられるが、詳細な腫瘍発症機構は不明のままである。私はMEN1の転写産物meninの共役蛋白である転写因子に着目した。meninとこの転写因子の共役結合破綻が、MEN1型での腫瘍発症の直接の契機となるとの仮説を立て、それを立証する実験を計画した。MEN1型の腫瘍の種々のプロセスで変動する遺伝子群を捉え、腫瘍化機構の解明や、内分泌腫瘍の診断、治療標的としての新たな分子マーカーの同定に発展することが期待される。

Outline of Final Research Achievements

MEN1, the causative gene of multiple endocrine neoplasia type 1 (MEN type 1), is considered to be a tumor suppressor gene.
We investigated the significance of LOH (loss of heterozygosity) in the process of tumorigenesis in endocrine glands. In target endocrine glands in MEN1, the genetic profile before LOH was significantly different from that after tumorigenesis. In endocrine tumorigenesis, the occurrence of LOH of the MEN1 gene is not uniform even in the same individual tumor site, and there is no correlation between the degree of LOH and the malignancy of the tumor or gain of function (hormone hypersecretion).

Academic Significance and Societal Importance of the Research Achievements

これまでMEN1型の腫瘍発症機構の研究としては、癌抑制遺伝子の機能破綻後の、すなわちLOHが生じた後の腫瘍組織を用いてMEN1の機能不全が腫瘍増殖に及ぼす影響について論ぜられた研究が主であったが、今回、私達は、MEN1型におけるLOH発症前の標的内分泌腺における遺伝子変動に着目して研究を遂行した。今後研究を発展させることでp53遺伝子、Rb遺伝子、APC遺伝子など他の癌抑制遺伝子にも共通するLOHの機構の解明につながる可能性がある。また、膵内分泌腫瘍化に関わる新規因子群や経路の詳細が解明されれば、膵内分泌腫瘍の診断、治療における新たな分子マーカーや、創薬のターゲットとなることが期待される。

Report

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

    (17 results)

All 2023 2022 2021 2020

All Journal Article (9 results) (of which Peer Reviewed: 7 results,  Open Access: 2 results) Presentation (8 results) (of which Int'l Joint Research: 3 results,  Invited: 5 results)

  • [Journal Article] The Impact of Age- and Sex-Specific Reference Ranges for Serum Thyrotropin and Free Thyroxine on the Diagnosis of Subclinical Thyroid Dysfunction: A Multicenter Study from Japan2023

    • Author(s)
      Yamada Sayaka、Horiguchi Kazuhiko、Akuzawa Masako、Sakamaki Koji、Yamada Eijiro、Ozawa Atsushi、Kobayashi Isao、Shimomura Yohnosuke、Okamoto Yasuyuki、Andou Tetsuro、Andou Yoshitaka、Yamada Masanobu
    • Journal Title

      Thyroid

      Volume: 33 Issue: 4 Pages: 428-439

    • DOI

      10.1089/thy.2022.0567

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Maternal hypothyroidism is associated with M-opsin developmental delay2022

    • Author(s)
      Saito Kazuma、Horiguchi Kazuhiko、Yamada Sayaka、Buyandalai Battsetseg、Ishida Emi、Matsumoto Shunichi、Yoshino Satoshi、Nakajima Yasuyo、Yamada Eijiro、Saito Tsugumichi、Ozawa Atsushi、Tajika Yuki、Akiyama Hideo、Yamada Masanobu
    • Journal Title

      Journal of Molecular Endocrinology

      Volume: 69 Issue: 3 Pages: 391-399

    • DOI

      10.1530/jme-22-0114

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Hypothalamic Paraventricular Nucleus Is the Center of the Hypothalamic?Pituitary?Thyroid Axis for Regulating Thyroid Hormone Levels2021

    • Author(s)
      Kondo Yuri、Ozawa Atsushi、Kohno Daisuke、Saito Kazuma、Buyandalai Battsetseg、Yamada Sayaka、Horiguchi Kazuhiko、Nakajima Yasuyo、Shibusawa Nobuyuki、Harada Akihiro、Yokoo Hideaki、Akiyama Hideo、Sasaki Tsutomu、Kitamura Tadahiro、Yamada Masanobu
    • Journal Title

      Thyroid

      Volume: 32 Pages: 105-114

    • DOI

      10.1089/thy.2021.0444

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] TBC1D8B, a GTPase-activating protein, is a novel apoptosis inducer2021

    • Author(s)
      OKADA Junichi、MATSUMOTO Shunichi、YAMADA Eijiro、SAITO Tsugumichi、OKADA Kazuya、WATANABE Takuya、NAKAJIMA Yasuyo、OZAWA Atsushi、YAMADA Masanobu、OHSHIMA Kihachi、OKADA Shuichi
    • Journal Title

      Biomedical Research

      Volume: 42 Issue: 3 Pages: 95-102

    • DOI

      10.2220/biomedres.42.95

    • NAID

      130008049624

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Overexpressed exocyst complex component 3-like 1 spontaneously induces apoptosis2021

    • Author(s)
      MATSUMOTO Shunichi、OKADA Junichi、YAMADA Eijiro、SAITO Tsugumichi、OKADA Kazuya、WATANABE Takuya、NAKAJIMA Yasuyo、OZAWA Atsushi、OKADA Shuichi、YAMADA Masanobu
    • Journal Title

      Biomedical Research

      Volume: 42 Issue: 3 Pages: 109-113

    • DOI

      10.2220/biomedres.42.109

    • NAID

      130008049622

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] SFPQ associated with a co-activator for PPARγ, HELZ2, regulates key nuclear factors for adipocyte differentiation2021

    • Author(s)
      Katano-Toki Akiko、Yoshino Satoshi、Nakajima Yasuyo、Tomaru Takuya、Nishikido Ayaka、Ishida Emi、Horiguchi Kazuhiko、Saito Tsugumichi、Ozawa Atsushi、Satoh Tetsurou、Yamada Masanobu
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 562 Pages: 139-145

    • DOI

      10.1016/j.bbrc.2021.05.014

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Transcriptional Regulation of the Angptl8 Gene by Hepatocyte Nuclear Factor-1 in the Murine Liver.2020

    • Author(s)
      Watanabe T, Ozawa A,Masuda S, Yoshino S, Ishida E, Kondo U, Horiguchi K,Isii S, Tomaru T Shibusawa N, Saito T, Yamada E, Nakajima Y, Matsumoto S, Katano-Toki A, Okada S, Satoh T, Yamada M.
    • Journal Title

      Scientific reports

      Volume: 10 Issue: 1 Pages: 9999-9999

    • DOI

      10.1038/s41598-020-66570-0

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 多発性内分泌腫瘍の病態生理と臨床像2020

    • Author(s)
      小澤厚志
    • Journal Title

      日本臨床

      Volume: 78巻増刊4 Pages: 841-847

    • Related Report
      2020 Research-status Report
  • [Journal Article] 間脳下垂体機能障害の診断と治療:疑わないと始まらない2020

    • Author(s)
      小澤厚志
    • Journal Title

      内科

      Volume: 126 Pages: 591-596

    • Related Report
      2020 Research-status Report
  • [Presentation] 内分泌総論(教育講演)2022

    • Author(s)
      小澤厚志
    • Organizer
      第25回遺伝性腫瘍セミナー
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] エネルギー代謝調節機構におけるThyrotropin-Releasing Hormone (TRH)の役割(シンポジウム)2022

    • Author(s)
      小澤厚志、近藤友里、渡邉琢也、河野大輔、北村忠弘、山田正信
    • Organizer
      第42回日本肥満学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] A Case of Multiple Endocrine Neoplasia type 2A with malihnant paraganglioma.2022

    • Author(s)
      Ozawa A, Kondo Y, Horiguchi K, Yamada M
    • Organizer
      ENDO2022, Atlanta, GA, USA
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Analysis of the responsible region of TRH in the hypothalamus-pituitary-thyroid axis using Paraventricular nucleus-specific TRH dificient mice.2022

    • Author(s)
      Kondo Y, Ozawa A, Kohno D, Horiguchi K, Shibusawa N, Yokoo H, Kitamura T,Yamada M
    • Organizer
      ENDO2022, Atlanta, GA, USA
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Comprehensive genetic analysis of TSH-secreting pituitary adenomas.2022

    • Author(s)
      Horiguchi K, Saito K, Battsetseg B, Takamizawa T, Ishida E, Matsumoto S, Yoshino S, Yamada E, Ozawa A, Yamaguchi R, Tosaka M, Yamada S, Yamada M
    • Organizer
      ENDO2022, Atlanta, GA, USA
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] エネルギー代謝調節機構におけるThyrotropin-Releasing Hormone (TRH)の役割(シンポジウム)2022

    • Author(s)
      小澤厚志、近藤友里、渡邉琢也、河野大輔、北村忠弘、山田正信
    • Organizer
      第42回日本肥満学会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] エネルギー代謝調節機構におけるThyrotropin-Releasing Hormone (TRH)の役割: TRHノックアウトマウスの解析(シンポジウム)2021

    • Author(s)
      小澤厚志、近藤友里、河野大輔、北村忠弘、山田正信
    • Organizer
      第7回群馬大学生体調節研究所 内分泌代謝シンポジウム
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 内科医から見たMEN1に伴うPNETの症例のポイント(CPC)2021

    • Author(s)
      小澤厚志
    • Organizer
      第94回日本内分泌学会学術集会
    • Related Report
      2021 Research-status Report
    • Invited

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Published: 2020-04-28   Modified: 2024-01-30  

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