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Acquisition of apoptosis resistances in Drosophila tissue

Research Project

Project/Area Number 16K07378
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Developmental biology
Research InstitutionKyoto University (2017-2019)
Gakushuin University (2016)

Principal Investigator

Taniguchi Kiichiro  京都大学, 生命科学研究科, 特定助教 (20554174)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywordsアポトーシス耐性 / カスパーゼ / 組織恒常性 / ショウジョウバエ / アポトーシス / 倍加細胞 / 染色体倍加 / 細胞・組織 / 発生・分化 / 遺伝学
Outline of Final Research Achievements

The sensitivities to inducible apoptosis vary among different tissues in animals. The resistances to apoptosis are acquired in several animal tissues probably to enable cell to survive for long-term. Interestingly, certain kinds of pathological tissue also acquire resistances to apoptosis. Here, I examined these physiologically- and pathologically-acquired resistances to apoptosis using Drosophila endoreplicate tissue and artificially-induced endoreplicate tissue, respectively. As a result, physiological endpreplicate tissues, accessory gland, fat body, hindgut similarly showed the reduction of effector Caspase Dcp-1. In addition, the overexpression of Dcp-1 but not upstream Caspase Dronc caused apoptosis in accessory gland and fat body. These results suggest that silencing of Dcp-1 is common regulation to acquire resistances to apoptosis. In contrast, the artificial induction of endoreplication caused reduction of another effector Caspase Drice.

Academic Significance and Societal Importance of the Research Achievements

本研究成果により、生理的アポトーシス耐性を有する複数の組織において、共通して実行カスパーゼDcp-1の発現低下が生じていることがわかった。またDcp-1の発現低下自身が実際にアポトーシス耐性の実体であることも実証した。興味深いことに、検証した組織の一つである後腸では、Dcp-1低下に加えてさらに下流に抑制制御標的が存在していた。これは、アポトーシス耐性が多段階的に生じることで多様化する可能性を示唆している。また、病理的アポトーシス耐性を誘導する染色第倍加は多くの腫瘍組織で見いだされる形質でもあり、本結果は腫瘍の薬剤耐性獲得の理解にも貢献すると期待できる。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (18 results)

All 2020 2019 2018 2017 2016 Other

All Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (7 results) (of which Int'l Joint Research: 3 results) Book (1 results) Remarks (3 results)

  • [Journal Article] JNK-mediated Slit-Robo signaling facilitates epithelial wound repair by extruding dying cells.2019

    • Author(s)
      Iida C, Ohsawa S, Taniguchi K, Yamamoto M, Morata G, Igaki T
    • Journal Title

      Sci., Rep.

      Volume: 9 Issue: 1 Pages: 19549-19549

    • DOI

      10.1038/s41598-019-56137-z

    • NAID

      120006817614

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 細胞極性の崩壊によるがん化のメカニズム2019

    • Author(s)
      谷口喜一郎,井垣達氏
    • Journal Title

      医学のあゆみ

      Volume: 268 Pages: 496-500

    • Related Report
      2018 Research-status Report
  • [Journal Article] Nutrient conditions sensed by the reproductive organ during development optimize male fecundity in Drosophila2018

    • Author(s)
      Kubo, A., Matsuka, M., Minami, R., Kimura, F., Sakata-Niitsu, R., Kokuryo, A., Taniguchi, K., Adachi-Yamada, T., Nakagoshi, H.
    • Journal Title

      Genes to Cells

      Volume: 23 Issue: 7 Pages: 557-567

    • DOI

      10.1111/gtc.12600

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Binucleation of Accessory Gland Lobe Contributes to Effective Ejection of Seminal Fluid in Drosophila melanogaster2018

    • Author(s)
      Taniguchi, K., Kokuryo, A., Imano, T., Nakagoshi, H., Adachi-Yamada, T.
    • Journal Title

      Zoological Science

      Volume: 35 Issue: 5 Pages: 446-458

    • DOI

      10.2108/zs170188

    • NAID

      210000186704

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Drosophila Peptide Hormones Allatostatin A and Diuretic Hormone 31 Exhibiting Complementary Gradient Distribution in Posterior Midgut Antagonistically Regulate Midgut Senescence and Adult Lifespan2018

    • Author(s)
      Takeda Koji, Okumura Takashi, Terahata Mayu, Yamaguchi Mio, Taniguchi Kiichiro, Adachi-Yamada Takashi
    • Journal Title

      Zoological Science

      Volume: 35 Issue: 1 Pages: 75-85

    • DOI

      10.2108/zs160210

    • NAID

      40021460454

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] 細胞競合とがん2017

    • Author(s)
      谷口 喜一郎, 井垣 達吏
    • Journal Title

      血液フロンティア

      Volume: 12 Pages: 64-68

    • Related Report
      2017 Research-status Report
  • [Journal Article] Mechanisms and physiological roles of cell competition2017

    • Author(s)
      谷口 喜一郎, 井垣 達吏
    • Journal Title

      Leading Author's

      Volume: 6 Pages: e008

    • DOI

      10.7875/leading.author.6.e008

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Cell competition effector Sas-Ptp10D facilitates apoptosis for the proper shaping of germ-line stem cell niche2020

    • Author(s)
      Taniguchi Kiichiro, Igaki Tatsushi
    • Organizer
      The 5th Asia Pacific Drosophila Research Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Tumor-suppressive cell competition shapes germ-line stem cell niche in Drosophila2019

    • Author(s)
      Taniguchi, K., Igaki, T.
    • Organizer
      Keystone Symposia, Cell Competition in Development and Disease
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Polarity-mediated cell competition shapes germ-line stem cell niche in Drosophila2018

    • Author(s)
      Taniguchi, K., Igaki, T.
    • Organizer
      Gordon Research Conference, Cell Polarity Signaling
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Role of cell competition in shaping germ-line stem cell niche2018

    • Author(s)
      Taniguchi, K., Igaki, T.
    • Organizer
      13th Japanese Drosophila Research Conference
    • Related Report
      2018 Research-status Report
  • [Presentation] 個体発生・維持におけるがん抑制型細胞競合の生理的役割2018

    • Author(s)
      谷口喜一郎,井垣達吏
    • Organizer
      第7回細胞競合コロキウム
    • Related Report
      2018 Research-status Report
  • [Presentation] 個体発生・維持におけるがん抑制型細胞競合の生理的役割2018

    • Author(s)
      谷口 喜一郎, 井垣 達吏
    • Organizer
      第7回細胞競合コロキウム
    • Related Report
      2017 Research-status Report
  • [Presentation] Binucleation of male accessory gland cells elevates reproductive capacity in Drosophila2016

    • Author(s)
      谷口喜一郎、安達卓
    • Organizer
      12th Japanese Drosophila Research Conference
    • Place of Presentation
      立教大学
    • Year and Date
      2016-09-09
    • Related Report
      2016 Research-status Report
  • [Book] Drosophila Models for Human Diseases (Adult Intestine Aging Modelを担当)2018

    • Author(s)
      Takeda, K., Okumura, T., Taniguchi, K., Adachi-Yamada, T.
    • Total Pages
      308
    • Publisher
      Springer Nature
    • Related Report
      2018 Research-status Report
  • [Remarks] 学習院大学・安達研究室

    • URL

      https://www-cc.gakushuin.ac.jp/~e090001/index.html

    • Related Report
      2018 Research-status Report
  • [Remarks] 井垣研究室・システム機能学

    • URL

      http://www.lif.kyoto-u.ac.jp/genetics/

    • Related Report
      2018 Research-status Report
  • [Remarks] 学習院大学・安達研究室

    • URL

      http://www-cc.gakushuin.ac.jp/~e090001/index.html

    • Related Report
      2017 Research-status Report 2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2021-02-19  

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