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Distribution and function of IL-7-producing cells

Research Project

Project/Area Number 21590531
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Immunology
Research InstitutionKyoto University

Principal Investigator

IKUTA Koichi  京都大学, ウイルス研究所, 教授 (90193177)

Co-Investigator(Kenkyū-buntansha) TANI-ICHI Shizue  京都大学, ウイルス研究所, 助教 (50432331)
HARA Takahiro  京都大学, ウイルス研究所, 助教 (90512301)
Co-Investigator(Renkei-kenkyūsha) IMAI Kumiko  京都大学, ウイルス研究所, 教務補佐員
Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsサイトカイン / IL-7 / ストローマ細胞 / 小腸上皮内リンパ球 / γδ T細胞 / インターロイキン7 / リンパ組織 / 遺伝子改変マウス / 胸腺 / NKT細胞 / 胸腺上皮細胞 / GFP / T細胞
Research Abstract

IL-7 is an essential cytokine for lymphocyte development and survival produced by mesenchymal and epithelial cells in lymphoid organs. However, little is known about the precise nature and distribution of IL-7-expressing cells in vivo. To address this question, we established IL-7-GFP knock-in mice. We found that GFP is expressed in bone marrow stromal cells, thymic epithelial cells(TECs), fibroblastic reticular cells(FRCs) and lymphatic endothelial cells in lymph nodes, and intestinal epithelial cells. After induction of acute colitis with DSS, GFP expression was elevated in the intestinal epithelial cells. Thus, the IL-7-GFP knock-in mouse reveals unreported types of IL-7-expressing cells and provides a powerful tool to analyze the IL-7-niche in the lymphoid organs under physiological and pathological conditions. We next established IL-7-floxed mice and crossed with FoxN1-Cre transgenic(Tg) mice to obtain the conditional knockout mice deficient in IL-7 production from TECs. FoxN1-Cre … More IL-7flox/flox mice showed severely reduced numbers of total andγδT cells in the thymus. These results suggested that IL-7 produced by TECs plays a major role in proliferation, survival, and maturation of thymocytes. In small intestine, cell numbers ofγδIELs were significantly reduced in FoxN1-Cre IL-7flox/flox mice, suggesting that IL-7 produced in the thymus is essential forγδIEL development. Thus, this study presents strong evidence for the thymic originγδIELs. We next crossed IL-7-floxed mice with albumin promoter-driven Cre(Alb-Cre) Tg mice to establish conditional knockout of IL-7 in hepatocytes. We found that NKT and T cells were moderately decreased in adultliver of IL-7f/f Alb-Cre mice and that B cell development was impaired in perinatal liver of IL-7f/f Alb-Cre mice. This study demonstrates that hepatocyte-derived IL-7 plays an indispensable role in maintenance of NKT and T cells in adult liver and development of B cells in fetal liver and suggests that hepatocytes provide a unique IL-7 niche for intrahepatic lymphocytes. Less

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (28 results)

All 2011 2010 2009 Other

All Journal Article (12 results) (of which Peer Reviewed: 12 results) Presentation (11 results) Book (1 results) Remarks (4 results)

  • [Journal Article] The pre-TCR signal induces transcriptional silencing of the TCRγlocus by reducing the recruitment ofSTAT5 and Runx to transcriptional enhancers2011

    • Author(s)
      Tani-ichi, S., Satake, M., and Ikuta, K.
    • Journal Title

      Int. Immunol

      Volume: 23 Pages: 553-563

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Upregulated IL-7Rα expression on colitogenic memory CD4+ T cells may participate in the development and persistence of chronic colitis2011

    • Author(s)
      Shinohara, T., et al
    • Journal Title

      J.Immunol.

      Volume: 186 Issue: 4 Pages: 2623-2632

    • DOI

      10.4049/jimmunol.1000057

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Contribution of IL-17-producing γ δ T cells to the efficacy of anticancer chemotherapy2011

    • Author(s)
      Ma, Y., et al
    • Journal Title

      J.Exp.Med.

      Volume: 208 Issue: 3 Pages: 491-503

    • DOI

      10.1084/jem.20100269

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The pre-TCR signal induces transcriptional silencing of the TCRγ locus by reducing the recruitment of STAT5 and Runx to transcriptional enhancers2011

    • Author(s)
      Tani-ichi, S., Satake, M., Ikuta, K.
    • Journal Title

      Int.Immunol.

      Volume: 23 Issue: 9 Pages: 553-563

    • DOI

      10.1093/intimm/dxr055

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Upregulated IL-7Rα expression on colitogenic memory CD4^+ T cells may participate in the development and persistence of chronic colitis2011

    • Author(s)
      Shinohara, T., Nemoto, Y., Kanai, T., Kameyama, K., Okamoto, R., Tsuchiya, K., Nakamura, T., Totsuka, T., Ikuta, K., Watanabe, M.
    • Journal Title

      Journal of Immunology

      Volume: 186 Pages: 2623-2632

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Accessibility control of TCR Vγregion by STAT52010

    • Author(s)
      Tani-ichi, S., Lee, H.-C., Ye, S.-K., and Ikuta, K.
    • Journal Title

      Int. Immunol

      Volume: 22 Issue: 8 Pages: 693-703

    • DOI

      10.1093/intimm/dxq054

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Essential role of interleukin-17A in the formation of a mycobacterial infection-induced granuloma in the lung2010

    • Author(s)
      Okamoto Yoshida, Y., Umemura, M., Yahagi, A., O Brien, R.L., Ikuta, K., Kishihara, K., Hara, H., Nakae, S., Iwakura, Y., Matsuzaki, G.
    • Journal Title

      Journal of Immunology

      Volume: 184 Pages: 4414-4422

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Accessibility control of TCR Vγ region by STAT52010

    • Author(s)
      Tani-ichi, S., Lee, H.-C., Ye, S.-K., Ikuta, K.
    • Journal Title

      International Immunology

      Volume: 22 Pages: 693-703

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Essential role of interleukin-17A in the formation of a mycobacterial infection-induced granuloma in the lung.2010

    • Author(s)
      Okamoto Yoshida, Y., et al.
    • Journal Title

      J. Immunol. 184

      Pages: 4414-4422

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Activation of the mouse T cellreceptorγenhancers by STAT52009

    • Author(s)
      Tani-ichi, S., Satake, M., and Ikuta, K.
    • Journal Title

      Int. Immunol

      Volume: 21 Issue: 9 Pages: 1079-1088

    • DOI

      10.1093/intimm/dxp073

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Dual role for Id2 in chemical carcinogen-induced skin tumorigenesis.2009

    • Author(s)
      Tokuriki, A., et al.
    • Journal Title

      Carcinogenesis 30

      Pages: 1645-1650

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Activation of the mouse T cell receptor γ enhancers by STAT5.2009

    • Author(s)
      Tani-ichi, S., et al.
    • Journal Title

      Int. immunol. 21

      Pages: 1079-1088

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] リンパ管内皮細胞が産生するIL-7は末梢T細胞の組織分布を制御する2011

    • Author(s)
      原崇裕、生田宏一
    • Organizer
      第40回日本免疫学会学術集会
    • Place of Presentation
      千葉
    • Year and Date
      2011-11-28
    • Related Report
      2011 Annual Research Report 2011 Final Research Report
  • [Presentation] 肝細胞が産生するIL-7は肝臓でのリンパ球の分化と維持を制御する2011

    • Author(s)
      梁冰霏、原崇裕、我妻慶祐、設楽宗一朗、谷一靖江、生田宏一
    • Organizer
      第40回日本免疫学会学術集会
    • Place of Presentation
      千葉
    • Year and Date
      2011-11-28
    • Related Report
      2011 Annual Research Report 2011 Final Research Report
  • [Presentation] 腸管上皮内γδT細胞は胸腺に由来する2011

    • Author(s)
      設楽宗一朗、梁冰霏、原崇裕、我妻慶祐、生田宏一
    • Organizer
      第40回日本免疫学会学術集会
    • Place of Presentation
      千葉
    • Year and Date
      2011-11-27
    • Related Report
      2011 Final Research Report
  • [Presentation] 腸管上皮内γ δ T細胞は胸腺に由来する2011

    • Author(s)
      設楽宗一朗、梁冰霏、原崇裕、我妻慶祐、生田宏一
    • Organizer
      第40回日本免疫学会学術集会
    • Place of Presentation
      千葉
    • Year and Date
      2011-11-27
    • Related Report
      2011 Annual Research Report
  • [Presentation] Distribution of IL-7-expressing organs. International Congress of Immunology2010

    • Author(s)
      Hara, T., Tani-ichi, S., and Ikuta, K
    • Organizer
      The 14^<th> International Congress of Immunology
    • Place of Presentation
      Kobe
    • Year and Date
      2010-09-23
    • Related Report
      2011 Final Research Report
  • [Presentation] Local function of IL-7produced by thymic and epidermal epithelial cells2010

    • Author(s)
      Liang, B., Hara, T., Tani-ichi, S., and Ikuta, K.
    • Organizer
      The 14^<th> International Congress of Immunology
    • Place of Presentation
      Kobe
    • Year and Date
      2010-08-25
    • Related Report
      2011 Final Research Report
  • [Presentation] Local function of IL-7 produced by thymic and epidermal epithelial cells2010

    • Author(s)
      Liang, B., Hara, T., Tani-ichi, S., Ikuta, K.
    • Organizer
      The 14th International Congress of Immunology
    • Place of Presentation
      神戸国際会議場
    • Year and Date
      2010-08-25
    • Related Report
      2010 Annual Research Report
  • [Presentation] Distribution of IL-7-expressing cells in lymphoid organs2010

    • Author(s)
      Hara, T., Tani-ichi, S., Ikuta, K.
    • Organizer
      The 14th International Congress of Immunology
    • Place of Presentation
      神戸国際会議場
    • Year and Date
      2010-08-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] リンパ組織におけるIL-7産生細胞の分布と機能2009

    • Author(s)
      生田宏一、原崇裕、梁冰霏、谷一靖江
    • Organizer
      第32回日本分子生物学会年会ワークショップ
    • Place of Presentation
      横浜
    • Year and Date
      2009-12-09
    • Related Report
      2011 Final Research Report
  • [Presentation] リンパ組織におけるIL-7産生細胞の分布と機能2009

    • Author(s)
      生田宏一、原崇裕、梁冰霏、谷一靖江
    • Organizer
      第32回日本分子生物学会年会
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2009-12-09
    • Related Report
      2009 Annual Research Report
  • [Presentation] 胸線上皮細胞が産生するIL-7の局所的役割2009

    • Author(s)
      生田宏一、原崇裕、梁冰霏、谷一靖江
    • Organizer
      第39回日本免疫学会学術集会
    • Place of Presentation
      大阪
    • Year and Date
      2009-12-02
    • Related Report
      2011 Final Research Report
  • [Book] Role of the IL-7 receptor inγδT-cell development from hematopoietic stem cells. In "Hematopoietic Stem Cell Biology". Kondo, M., ed.2009

    • Author(s)
      Ikuta, K. and Tani-ichi, S.
    • Publisher
      Humana Press Inc
    • Related Report
      2011 Final Research Report
  • [Remarks]

    • URL

      http://www.virus.kyoto-u.ac.jp/Lab/ikuta.html

    • Related Report
      2011 Final Research Report
  • [Remarks]

    • URL

      http://www.virus.kyoto-u.ac.jp/Lab/ikuta.html

    • Related Report
      2011 Annual Research Report
  • [Remarks]

    • URL

      http://www.virus.kyoto-u.ac.jp/Lab/ikuta.html

    • Related Report
      2010 Annual Research Report
  • [Remarks]

    • URL

      http://www.virus.kyoto-u.ac.jp/Lab/ikuta.html

    • Related Report
      2009 Annual Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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