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The investigation of regulatory mechanisms for innate allergy by IL4-induced NK cells

Research Project

Project/Area Number 17K15737
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Immunology
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Kiniwa Tsuyoshi  国立研究開発法人理化学研究所, 生命医科学研究センター, 基礎科学特別研究員 (90793795)

Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
KeywordsNK cell / ILC2 / TFH / IL-4 / Allergy / IL-12 / IL-4誘導性NK細胞 / 細胞傷害活性 / 免疫学 / アレルギー・免疫関連疾患 / 2型自然リンパ球 / NK細胞 / Interleukin-4
Outline of Final Research Achievements

In this study, we investigated the physiological roles of IL-4 induced NK cell (IL4-NK) in allergic diseases using mouse model of asthma. Especially, we focused on the interactions among T follicular helper (TFH), Group 2 innate lymphoid cells (ILC2), and IL4-NK. We found that serum IgE was reduced by injecting a depleting antibody against NK cells into asthmatic mice. Because IgE is induced by IL-4 from TFH, this result suggested that NK cell can suppress TFH during asthmatic diseases. Furthermore, we revealed that ILC2 co-cultured with IL4-NK showed lower proliferation and cytokine production compared to without IL4-NK, suggesting that IL4-NK can suppressed ILC2 directly.

Academic Significance and Societal Importance of the Research Achievements

本研究によって、アレルギー病態における新たなNK細胞の制御機構およびその生理的役割として、IL-4を受け取ったNK細胞が活性化し、TFHやILC2と相互作用しそれらを抑制することでアレルギー性炎症の過剰な亢進を抑制する、ネガティブフィードバック機構に働く可能性があることが明らかになった。IL4-NKの誘導機序やTFHおよびILC2を抑制する機構の詳細は今の所不明であるが、今後その詳細が明らかとなれば、あらたなアレルギー性疾患の治療法開発の糸口となることが期待できる。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (2 results)

All 2018 2017

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

  • [Journal Article] Identification of the novel 3' UTR sequences of human IL-21 mRNA as potential targets of miRNAs2017

    • Author(s)
      Enomoto Y., Takagi R., Naito Y., Kiniwa T., Tanaka Y., Hamada-Tsutsumi S., Kawano M., Matsushita S., Ochiya T., Miyajima A.
    • Journal Title

      Scientific Reports

      Volume: 7 Issue: 1 Pages: 1-9

    • DOI

      10.1038/s41598-017-07853-x

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Novel suppression mechanism of group 2 innate lymphoid cells.2018

    • Author(s)
      Tsuyoshi Kiniwa, Kazuyo Moro
    • Organizer
      第47回日本免疫学会
    • Related Report
      2018 Annual Research Report

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Published: 2017-04-28   Modified: 2020-03-30  

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