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Molecular characterization of normal endometrial epithelial cells with cancer-associated gene mutations

Research Project

Project/Area Number 20K07318
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 48040:Medical biochemistry-related
Research InstitutionSasaki Foundation

Principal Investigator

Nakaoka Hirofumi  公益財団法人佐々木研究所, 附属研究所, 部長 (70611193)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords子宮内膜 / 癌関連遺伝子 / 体細胞変異 / クローン性増殖 / ゲノム解析 / トランスクリプトーム解析 / がん関連遺伝子 / 子宮内膜症 / 子宮体癌 / 卵巣癌 / がん / 上皮細胞 / 転写制御
Outline of Research at the Start

我々は卵巣子宮内膜症および正常子宮内膜において癌関連遺伝子に体細胞変異が生じていることを世界で初めて報告した。さらに、空間的広がりを持つ子宮内膜組織において、癌関連遺伝子変異を保有する上皮細胞がどのように分布しているかを検討した。その結果、病理学的に異型や悪性所見が観察されないにも関わらず、全く同じ体細胞変異を保有する上皮細胞からなる腺管が広範囲に分布している症例が認められた。本研究では、網羅的遺伝子発現解析およびオープンクロマチン領域解析を行うことで、過剰増殖能を獲得した上皮細胞の分子表現型特性について検討し、子宮内膜を起源とする婦人科疾患の発症機序解明を試みる。

Outline of Final Research Achievements

We showed that somatic mutations in cancer-associated genes accumulated in the human normal endometrial epithelium. Endometrial glands with cancer-associated gene mutations spatially expanded in the substantial areas of the endometrium. By using three-dimensional imaging analysis, we discovered the plexus network-like glandular structure at the bottom of the endometrium ran horizontally along the muscular layer, and several branches rose from the structure toward the luminal epithelium. Moreover, mutant clones detected in the vertical glands diversify by acquiring additional mutations. These results suggest that clonal expansions through the network-like structures are involved in the mechanism by which mutant clones extend their territories. By extracting both DNA and RNA, we conducted transcriptome analysis for the single endometrial glands whose mutation profiles and spatial information were available.

Academic Significance and Societal Importance of the Research Achievements

月経による子宮内膜の組織再生を繰り返す過程において、一見正常な子宮内膜において癌関連遺伝子の体細胞変異を有する上皮細胞が蓄積していくことが分かった。三次元イメージング解析とゲノム解析によって、癌関連遺伝子に変異を有する上皮細胞が空間的に増殖するメカニズムを明らかにした。癌関連遺伝子に体細胞変異を有し、空間的に増殖する上皮細胞の特徴を明らかにするため、網羅的遺伝子発現解析を行った。子宮内膜症、子宮腺筋症、子宮体癌や卵巣癌といった子宮内膜組織に関連する疾患の発症機序を理解するための重要な知見が得られた。

Report

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

    (13 results)

All 2022 2021 2020

All Journal Article (10 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 10 results,  Open Access: 7 results) Presentation (3 results) (of which Invited: 3 results)

  • [Journal Article] High incidence of PI3K pathway gene mutations in South Indian cervical cancers2022

    • Author(s)
      Rose Mathew Maria、Dhamodharan Shankar、Revathidevi Sundaramoorthy、Chakkarappan Sundaram Reddy、Jagadeesan Mani G、Subbiah Shanmugam、Nakaoka Hirofumi、Inoue Ituro、Murugan Avaniyapuram Kannan、Munirajan Arasambattu Kannan
    • Journal Title

      Cancer Genetics

      Volume: 264-265 Pages: 100-108

    • DOI

      10.1016/j.cancergen.2022.05.002

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] APOBEC mediated mutagenesis drives genomic heterogeneity in endometriosis2022

    • Author(s)
      Revathidevi Sundaramoorthy、Nakaoka Hirofumi、Suda Kazuaki、Fujito Naoko、Munirajan Arasambattu Kannan、Yoshihara Kosuke、Enomoto Takayuki、Inoue Ituro
    • Journal Title

      Journal of Human Genetics

      Volume: 67 Issue: 6 Pages: 323-329

    • DOI

      10.1038/s10038-021-01003-y

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Spatiotemporal dynamics of clonal selection and diversification in normal endometrial epithelium2022

    • Author(s)
      Yamaguchi Manako、Nakaoka Hirofumi、Suda Kazuaki、Yoshihara Kosuke、Ishiguro Tatsuya、Yachida Nozomi、Saito Kyota、Ueda Haruka、Sugino Kentaro、Mori Yutaro、Yamawaki Kaoru、Tamura Ryo、Revathidevi Sundaramoorthy、Motoyama Teiichi、Tainaka Kazuki、Verhaak Roel G. W.、Inoue Ituro、Enomoto Takayuki
    • Journal Title

      Nature Communications

      Volume: 13 Issue: 1 Pages: 943-943

    • DOI

      10.1038/s41467-022-28568-2

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Biological significance of KRAS mutant allele expression in ovarian endometriosis2021

    • Author(s)
      Yachida Nozomi、Yoshihara Kosuke、Suda Kazuaki、Nakaoka Hirofumi、Ueda Haruka、Sugino Kentaro、Yamaguchi Manako、Mori Yutaro、Yamawaki Kaoru、Tamura Ryo、Ishiguro Tatsuya、Kase Hiroaki、Motoyama Teiichi、Enomoto Takayuki
    • Journal Title

      Cancer Science

      Volume: 112 Issue: 5 Pages: 2020-2032

    • DOI

      10.1111/cas.14871

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Three-dimensional understanding of the morphological complexity of the human uterine endometrium2021

    • Author(s)
      Yamaguchi Manako、Yoshihara Kosuke、Suda Kazuaki、Nakaoka Hirofumi、Yachida Nozomi、Ueda Haruka、Sugino Kentaro、Mori Yutaro、Yamawaki Kaoru、Tamura Ryo、Ishiguro Tatsuya、Motoyama Teiichi、Watanabe Yu、Okuda Shujiro、Tainaka Kazuki、Enomoto Takayuki
    • Journal Title

      iScience

      Volume: 24 Issue: 4 Pages: 102258-102258

    • DOI

      10.1016/j.isci.2021.102258

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] XCL1 expression correlates with CD8-positive T cells infiltration and PD-L1 expression in squamous cell carcinoma arising from mature cystic teratoma of the ovary2020

    • Author(s)
      Tamura Ryo、Yoshihara Kosuke、Nakaoka Hirofumi、Yachida Nozomi、Yamaguchi Manako、Suda Kazuaki、Ishiguro Tatsuya、Nishino Koji、Ichikawa Hiroshi、Homma Keiichi、Kikuchi Akira、Ueda Yutaka、Takei Yuji、Fujiwara Hiroyuki、Motoyama Teiichi、Okuda Shujiro、Wakai Toshifumi、Inoue Ituro、Enomoto Takayuki
    • Journal Title

      Oncogene

      Volume: 39 Issue: 17 Pages: 3541-3554

    • DOI

      10.1038/s41388-020-1237-0

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Germline mutations of multiple breast cancer-related genes are differentially associated with triple-negative breast cancers and prognostic factors2020

    • Author(s)
      Hata Chihiro、Nakaoka Hirofumi、Xiang Yu、Wang Dong、Yang Anping、Liu Dahai、Liu Fang、Zou Qingfeng、Wei Li、Zheng Ke、Inoue Ituro、You Hua
    • Journal Title

      Journal of Human Genetics

      Volume: 65 Issue: 7 Pages: 577-587

    • DOI

      10.1038/s10038-020-0729-7

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Clonal lineage from normal endometrium to ovarian clear cell carcinoma through ovarian endometriosis2020

    • Author(s)
      Suda Kazuaki、Cruz Diaz Luis Antonio、Yoshihara Kosuke、Nakaoka Hirofumi、Yachida Nozomi、Motoyama Teiichi、Inoue Ituro、Enomoto Takayuki
    • Journal Title

      Cancer Science

      Volume: - Issue: 8 Pages: 3000-3009

    • DOI

      10.1111/cas.14507

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] ARID1A protein expression is retained in ovarian endometriosis with ARID1A loss-of-function mutations: implication for the two-hit hypothesis2020

    • Author(s)
      Yachida Nozomi、Yoshihara Kosuke、Suda Kazuaki、Nakaoka Hirofumi、Ueda Haruka、Sugino Kentaro、Yamaguchi Manako、Mori Yutaro、Yamawaki Kaoru、Tamura Ryo、Ishiguro Tatsuya、Isobe Masanori、Motoyama Teiichi、Inoue Ituro、Enomoto Takayuki
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 14260-14260

    • DOI

      10.1038/s41598-020-71273-7

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Endogenous retroviruses drive KRAB zinc-finger protein family expression for tumor suppression2020

    • Author(s)
      Ito Jumpei、Kimura Izumi、Soper Andrew、Coudray Alexandre、Koyanagi Yoshio、Nakaoka Hirofumi、Inoue Ituro、Turelli Priscilla、Trono Didier、Sato Kei
    • Journal Title

      Science Advances

      Volume: 6 Issue: 43 Pages: 3020-3020

    • DOI

      10.1126/sciadv.abc3020

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Somatic mutations in normal endometrium and carcinogenic risk2022

    • Author(s)
      中岡博史
    • Organizer
      第81回 日本癌学会学術総会.日本がん疫学・分子疫学研究会との合同シンポジウム.疫学者が抱えるジレンマ ― エビデンスに関わる様々なギャップを考える.
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 正常子宮内膜における癌関連遺伝子変異のクローン性増殖2021

    • Author(s)
      中岡博史
    • Organizer
      第43回日本エンドメトリオーシス学会学術講演会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 正常子宮内膜に潜む癌関連遺伝子に体細胞変異を獲得した細胞クローン2021

    • Author(s)
      中岡博史、井ノ上逸朗
    • Organizer
      日本人類遺伝学会第66回大会/第28回日本遺伝子診療学会大会
    • Related Report
      2021 Research-status Report
    • Invited

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

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