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A New Mechanism of Pulmonary Fibrosis by Alveolar Macrophage Activation of Basophils

Research Project

Project/Area Number 18K15919
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 53030:Respiratory medicine-related
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Tateishi Tomoya  東京医科歯科大学, 東京医科歯科大学病院, 講師 (40645636)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
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)
KeywordsARDS / 好塩基球 / マクロファージ / 好中球 / 肺線維症 / ケモカイン
Outline of Final Research Achievements

Acute Rapid Respiratory Distress Syndrome (ARDS) is a poor prognosis disease characterized by a rapid inflammatory response to cytokine storms associated with pulmonary and systemic inflammation. However, the pathophysiology has not been clearly defined. In this study, we investigated the relationship between basophils and the pathogenesis of ARDS.
IL4 has been known to be a cytokine associated with ARDS. In our study, we found that removal of basophils aggravated or delayed the pathogenesis of ARDS as well as in IL4-deficient mice.
Network analysis by FACS and single-cell analysis suggested that IL4 produced by basophils is involved in macrophages and neutrophils.

Academic Significance and Societal Importance of the Research Achievements

好塩基球は白血球中の1%に過ぎない微量の細胞であるが,IL-4などのサイトカインを調整する重要な細胞である.この細胞が今回肺における炎症に影響を及ぼしていることが推定された.今後の研究によりこの細胞の活性化や,この細胞の出しているサイトカインを補充することが肺の炎症改善につながることが期待される.

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (1 results)

All 2019

All Presentation (1 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] Basophil depletion leads to promotion of the lung fibrosis in bleomycin-mouse model2019

    • Author(s)
      Tomoya Tateishi
    • Organizer
      American Thoracic Society 2019, Dallas
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research

URL: 

Published: 2018-04-23   Modified: 2023-01-30  

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