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How does tumor formation occur in T-cell junctions?

Research Project

Project/Area Number 19H03453
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 49030:Experimental pathology-related
Research InstitutionTeikyo University (2021-2022)
Osaka University (2019-2020)

Principal Investigator

Tamura Atsushi  帝京大学, 医学部, 准教授 (00362525)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2021: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2020: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2019: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Keywordsクローディン / タイトジャンクション / 胃炎 / 胃がん / 幹細胞 / invasive gland / 胃腫瘍 / 細胞組織のヘテロ性 / ピロリ菌 / 胃型クローディン18 / 胃上皮バリアと胃腫瘍 / ノックアウトマウス / 組織微小環境 / 長期観察 / 腫瘍形成 / オーガナイザー
Outline of Research at the Start

タイトジャンクション(TJ)は、上皮細胞の細胞間透過性を制御する、生体内唯一の細胞間接着装置である。しかし近年の研究成果は、TJ形成の構成単位分子であるクローディン分子(Cldn)分子が、細胞増殖や分化・極性異常・臓器組織の構造決定・がんのイニシエーションなど、多細胞生物システムを上流から操作するオーガナイザーとして働くことを示す。しかしそのメカニズムは殆ど解析されていない。本申請では、Cldnを専門に研究を重ねてきた申請者が、胃に腫瘍を形成する胃型Cldn18欠損マウスに焦点を当て、Cldn分子の腫瘍形成の直接的・間接的なオーガナイザーとしての機能と、がん抑制操作法の開拓を目指す。

Outline of Final Research Achievements

Tight junctions (TJs), built with the cell membrane protein called claudin (Cldn), are crucial barrier structures located between cells on the epithelial sheets of the stomach, preventing the leakage of gastric acid into the submucosa. In the stomach, gastric-type Cldn18.2 is major Cldn for TJ formation, and its deficiency in knockout (KO) mice leads to gastritis in young age and the development of gastric tumors with aging. Our results suggested that the decrease in Cldn18.2 and the consequent increase in stemness may be important in the process of gastric cancer development, based on the analysis of these mice. In this study, we further analyzed the barrier impairment and gastric inflammation in TJ-associated COBL mutant mice as similar findings.

Academic Significance and Societal Importance of the Research Achievements

胃がんの多くは、ヘリコバクターピロリ菌の感染と、ピロリ菌により産生されるCagA因子およびその下流シグナルによる細胞増殖や細胞極性の異常化が重要であると考えられている。クローディン欠損が、ピロリ菌感染胃炎と類似の病態を示すことから、胃がんの発生に、タイトジャンクションを介する過程が非常に重要である可能性が示唆された。今後、胃がんをはじめ、他種のがんにおいても、治療標的としてのCldnの可能性の検討が期待される。

Report

(4 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (20 results)

All 2023 2022 2021 2020 2019 Other

All Journal Article (10 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 10 results,  Open Access: 8 results) Presentation (7 results) (of which Int'l Joint Research: 3 results) Remarks (3 results)

  • [Journal Article] Phase separation of an actin nucleator by junctional microtubules regulates epithelial function2023

    • Author(s)
      Tsukita Kazuto、Kitamata Manabu、Kashihara Hiroka、Yano Tomoki、Fujiwara Ikuko、Day Timothy F.、Katsuno Tatsuya、Kim Jaewon、Takenaga Fumiko、Tanaka Hiroo、Park Sungsu、Miyata Makoto、Watanabe Hitomi、Kondoh Gen、Takahashi Ryosuke、Tamura Atsushi、Tsukita Sachiko
    • Journal Title

      Science Advances

      Volume: 9 Issue: 7

    • DOI

      10.1126/sciadv.adf6358

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The tight junction protein occludin modulates blood brain barrier integrity and neurological function after ischemic stroke in mice2023

    • Author(s)
      Sugiyama Shintaro、Sasaki Tsutomu、Tanaka Hiroo、Yan Haomin、Ikegami Takeshi、Kanki Hideaki、Nishiyama Kumiko、Beck Goichi、Gon Yasufumi、Okazaki Shuhei、Todo Kenichi、Tamura Atsushi、Tsukita Sachiko、Mochizuki Hideki
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 2892-2892

    • DOI

      10.1038/s41598-023-29894-1

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Double mutation of claudin-1 and claudin-3 causes alopecia in infant mice2023

    • Author(s)
      Suzuki Koya、Yamaga Kosuke、Tokumasu Reitaro、Katsuno Tatsuya、Tanaka Hiroo、Chiba Shuhei、Yagi Takeshi、Katayama Ichiro、Tamura Atsushi、Murota Hiroyuki、Tsukita Sachiko
    • Journal Title

      Annals of the New York Academy of Sciences

      Volume: 1523 Issue: 1 Pages: 51

    • DOI

      10.1111/nyas.14980

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Planar cell polarity induces local microtubule bundling for coordinated ciliary beating2021

    • Author(s)
      Nakayama Shogo、Yano Tomoki、Namba Toshinori、Konishi Satoshi、Takagishi Maki、Herawati Elisa、Nishida Tomoki、Imoto Yasuo、Ishihara Shuji、Takahashi Masahide、Furuta Ken’ya、Oiwa Kazuhiro、Tamura Atsushi、Tsukita Sachiko
    • Journal Title

      Journal of Cell Biology

      Volume: 220 Issue: 7

    • DOI

      10.1083/jcb.202010034

    • URL

      https://pure.teikyo.jp/en/publications/b178094d-95ce-45b4-b98d-e6c0e4d6776c

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Daple deficiency causes hearing loss in adult mice by inducing defects in cochlear stereocilia and apical microtubules2021

    • Author(s)
      Ozono Yoshiyuki、Tamura Atsushi、Nakayama Shogo、Herawati Elisa、Hanada Yukiko、Ohata Kazuya、Takagishi Maki、Takahashi Masahide、Imai Takao、Ohta Yumi、Oshima Kazuo、Sato Takashi、Inohara Hidenori、Tsukita Sachiko
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 20224-20224

    • DOI

      10.1038/s41598-021-96232-8

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Deficiency of lung-specific claudin-18 leads to aggravated infection with Cryptococcus deneoformans through dysregulation of the microenvironment in lungs2021

    • Author(s)
      Sato K, Matsumoto I, Suzuki K, Tamura A, Shiraishi A, Kiyonari H, Kasamatsu J, Yamamoto H, Miyasaka T, Tanno D, Miyahara A, Zong T, Kagesawa T, Oniyama A, Kawamura K, Kitai Y, Umeki A, Kanno E, Tanno H, Ishii K, Tsukita S, Kawakami K
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 21110-21110

    • DOI

      10.1038/s41598-021-00708-6

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A microtubule-LUZP1 association around tight junction promotes epithelial cell apical constriction2020

    • Author(s)
      Yano Tomoki、Tsukita Kazuto、Kanoh Hatsuho、Nakayama Shogo、Kashihara Hiroka、Mizuno Tomoaki、Tanaka Hiroo、Matsui Takeshi、Goto Yuhei、Komatsubara Akira、Aoki Kazuhiro、Takahashi Ryosuke、Tamura Atsushi、Tsukita Sachiko
    • Journal Title

      The EMBO Journal

      Volume: 40 Issue: 2

    • DOI

      10.15252/embj.2020104712

    • URL

      https://localhost/en/publications/5b8a970c-0f27-4635-b2eb-3af07674acb9

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Iqgap3-Ras axis drives stem cell proliferation in the stomach corpus during homoeostasis and repair2020

    • Author(s)
      Matsuo Junichi、Douchi Daisuke、、Adachi Makoto、Tamura Atsushi、、Tsukita Sachiko、Ito Yoshiaki
    • Journal Title

      Gut

      Volume: 70 Issue: 10 Pages: 1833

    • DOI

      10.1136/gutjnl-2020-322779

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Reciprocal association between the apical junctional complex and AMPK: A promising therapeutic target for epithelial/endothelial barrier function?2019

    • Author(s)
      Tsukita, K., Yano, T., Tamura, A., and Tsukita, S.
    • Journal Title

      Int J Mol Sci.

      Volume: 20 Issue: 23 Pages: 6012-6012

    • DOI

      10.3390/ijms20236012

    • URL

      https://pure.teikyo.jp/en/publications/65404531-a200-44f8-bb17-5a1fc527d4e6

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Vinculin is critical for the robustness of the epithelial cell sheet paracellular barrier for ions2019

    • Author(s)
      Konishi S, Yano T, Tanaka H, Mizuno T, Kanoh H, Tsukita K, Namba T, Tamura A, Yonemura S, Gotoh S, Matsumoto H, Hirai T, Tsukita S.
    • Journal Title

      Life Sci Alliance

      Volume: 2 Issue: 4 Pages: e201900414-e201900414

    • DOI

      10.26508/lsa.201900414

    • NAID

      120007144472

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 多繊毛協調運動の確立過程のライブイメージングによる解析2022

    • Author(s)
      白土玄、小西聡史、矢野智樹、柏原 宏香、中山彰吾、勝野達也、Elisa Herawati、後藤慎平、近藤玄、 渡邊仁美、田村淳、月田早智子
    • Organizer
      第74回細胞生物学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] StCldn18 deficiency activates signaling cascade towards gastric tumorigenesis in mice.2021

    • Author(s)
      Tamura, A. Suzuki, K., Tanaka, H., Yano, T., Hayashi, D., Sentani, K., Oshima, M., Yasui, W., and Tsukit, S.
    • Organizer
      4th International Tight Junction Conference, Berlin (online conference)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] TJMAP2は微小管依存的な相分離により細胞接着部位のアクチン重合を制御する2021

    • Author(s)
      月田和人、矢野智樹、藤原郁子、Francis Day Timothy、勝野達也、柏原宏香、竹永富妙子、田中啓雄、田村淳、月田早智子
    • Organizer
      第74回細胞生物学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] タイトジャンクションの変化はマウス胃腫瘍形成へのシグナルカスケードを活性化する2020

    • Author(s)
      田村淳,鈴木浩也,田中啓雄,矢野智樹,仙谷和弘,大島正伸,安井 弥,月田早智子
    • Organizer
      第79回日本癌学会学術総会(Web開催)
    • Related Report
      2020 Annual Research Report
  • [Presentation] Role of the arrangement of basal bodies in establishment of the coordinated ciliary beating in multi-ciliated cells.2019

    • Author(s)
      Nakayama, S., Konishi, S., Yano, T., Herawati, E., Kashihara, H., Tamura, A.,and Tsukita, S.
    • Organizer
      ASCB/EMBO 2019 meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Planar cell polarity-dependent distribution of apical microtubules in tracheal multiciliated cells.2019

    • Author(s)
      Nakayama,S., Herawati,E., Takagishi,M., Torisawa,T., Namba,T., Ishihara,S., Yano,T., Tamura,A., Furuta,K., Oiwa,K., Takahashi,M., and Tsukita, S.
    • Organizer
      The 20th International Conference on Systems Biology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] タイトジャンクション-クローディンによる細胞間バリア制御と、その異常と病態ークローディン欠損マウス解析の視点からー2019

    • Author(s)
      田村淳、田中啓雄、矢野智樹、鈴木浩也、月田早智子
    • Organizer
      第19回日本蛋白質科学会年会・第71回日本細胞生物学会大会 合同年次大会
    • Related Report
      2019 Annual Research Report
  • [Remarks] 帝京大学 先端総合研究機構

    • URL

      https://www.teikyo-u.ac.jp/affiliate/acro

    • Related Report
      2021 Annual Research Report
  • [Remarks] 月田研究室

    • URL

      https://www.fbs.osaka-u.ac.jp/labs/tsukita/

    • Related Report
      2021 Annual Research Report
  • [Remarks] 大阪大学大学院生命機能研究科 月田研究室

    • URL

      https://www.fbs.osaka-u.ac.jp/labs/tsukita/

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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