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Elucidation of mechanisms in transcriptional regulation on immune tolerance of the human endometrium

Research Project

Project/Area Number 21K09529
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56040:Obstetrics and gynecology-related
Research InstitutionKansai Medical University

Principal Investigator

MURATA Hiromi  関西医科大学, 医学部, 講師 (00460832)

Co-Investigator(Kenkyū-buntansha) 岡田 英孝  関西医科大学, 医学部, 教授 (80330182)
田中 進  長崎県立大学, 看護栄養学部, 教授 (30399472)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords脱落膜化 / 子宮内膜間質細胞 / LGALS9 / HAND2 / FOXO1 / 子宮ナチュラルキラー細胞 / IL15 / GAL9 / 子宮内膜 / 転写制御
Outline of Research at the Start

申請者らは、独自の転写因子結合motif解析を用いたGAL9遺伝子発現制御領域の解析によって、GAL9遺伝子上流に複数個のHAND2候補応答性配列とHAND2誘導性転写制御因子であるForkhead box O1(FOXO1)の候補応答性配列を見いだしている。本研究では「目的:GAL9の発現動態と転写制御機構」を明らかにするために、ヒト子宮内膜でのGAL9発現、および子宮内膜分泌期におけるGAL9産生を検討し、さらに転写制御因子HAND2とFOXO1が結合するGAL9遺伝子発現領域の同定、ならびにHAND2とFOXO1によるGAL9遺伝子発現機構を解明する。

Outline of Final Research Achievements

To elucidate the molecular interaction between uterine natural killer cells and human endometrial stromal cells (ESCs) in the human decidua, we focused on the expression of galectin 9 (LGALS9), an immune checkpoint molecule secreted by ESCs. We found that Heart and neural crest derivatives expressed transcript 2(HAND2)and Forkhead box O1(FOXO1)phosphorylation, the important transcriptional factors in decidualized stromal cells, regulate LGALS9 expression. Furthermore, it is showed that increased phosphorylated FOXO1 unleashed the suppression of LGALS9 expression, and HAND2 more increased LGALS9 expression.

Academic Significance and Societal Importance of the Research Achievements

LGALS9はHepatitis A virus cellular receptor 2(HAVCR2)を介して子宮ナチュラルキラー細胞を抑制する。脱落膜化過程でヒト子宮内膜間質細胞が分泌するLGALS9と子宮ナチュラルキラー細胞膜上のHAVCR2とが相互作用することによって、抗炎症または免疫寛容に重要な役割を果たしている可能性が示唆された。またヒト子宮内膜における内分泌機構が免疫機構を制御する分子メカニズムの一端を解明することができた。

Report

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

    (6 results)

All 2023 2022 2021

All Journal Article (4 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (1 results) Book (1 results)

  • [Journal Article] 子宮内膜免疫細胞の動態と機能2023

    • Author(s)
      村田紘未、田中進、岡田英孝
    • Journal Title

      HORMONE FRONTIER IN GYNECOLOGY

      Volume: 30(3) Pages: 203-208

    • Related Report
      2023 Annual Research Report
  • [Journal Article] The Regulators of Human Endometrial Stromal Cell Decidualization.2022

    • Author(s)
      Murata H, Tanaka S, Okada H.
    • Journal Title

      Biomolecules.

      Volume: 12 Issue: 9 Pages: 1275-1275

    • DOI

      10.3390/biom12091275

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Immune Tolerance of the Human Decidua2021

    • Author(s)
      Mutara H, Tanaka S, Okada H
    • Journal Title

      Journal of clinical medicine

      Volume: 10 Issue: 2 Pages: 351-351

    • DOI

      10.3390/jcm10020351

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Transcriptional regulation of LGALS9 by HAND2 and FOXO1 in human endometrial stromal cells in women with regular cycles.2021

    • Author(s)
      Murata H, Tanaka S, Hisamatsu Y, Tsubokura H, Hashimoto Y, Kitada M, Okada H.
    • Journal Title

      Mol Hum Reprod

      Volume: 27(11) Issue: 11 Pages: 1-12

    • DOI

      10.1093/molehr/gaab063

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 脱落膜化子宮内膜間質細胞におけるLGALS9の転写制御機構の解明2022

    • Author(s)
      村田紘未, 服部葵, 安原由貴, 中尾朋子, 小野淑子, 岡田英孝
    • Organizer
      日本産科婦人科学会
    • Related Report
      2022 Research-status Report
  • [Book] 臨床免疫・アレルギー科2022

    • Author(s)
      村田紘未、田中進、岡田英孝
    • Total Pages
      6
    • Publisher
      科学評論社
    • Related Report
      2022 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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