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Evaluation of mechanisms of increases in virus replication in bronchial epithelial cells from patients with chronic obstructive pulmonary disease

Research Project

Project/Area Number 18K15953
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 53030:Respiratory medicine-related
Research InstitutionKyushu University

Principal Investigator

Kan-o Keiko  九州大学, 大学病院, 医員 (50813771)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
KeywordsPI3Kδ / インターフェロン / 抗ウイルス薬 / PD-L1 / HSP70 / PI3キナーゼデルタ / ヒトメタニューモウイルス / 気道上皮細胞 / ウイルス感染遷延 / 閉塞性肺疾患 / ウイルス感染
Outline of Final Research Achievements

Cigarette smoke exposure induces reactive oxygen species such as H2O2 in bronchial epithelium. We showed that treatment with H2O2 increased replication of human metapneumovirus by inducing heat shock protein 70.
We also showed that PI3Kdelta specific inhibitor suppressed synthetic double-stranded RNA poly I:C-induced the expression of co-inhibitory molecule PD-L1, and production of inflammatory cytokine and chemokines in murine lungs. In addition, PI3Kdelta specific inhibitor enhanced antiviral immune responses, production of type I and type III interferons, and inhibited replication of human metapneumovirus in bronchial epithelium.

Academic Significance and Societal Importance of the Research Achievements

以前の研究において、慢性閉塞性肺疾患(COPD)患者の気道上皮細胞では健常者と比較してヒトメタニューモウイルス(hMPV)が増殖しやすいことを報告していた。本研究はその機序として活性酸素による熱ショックタンパク質70(Hsp70)の関与を示し、Hsp70阻害剤がCOPD増悪抑制薬・抗hMPV薬となる可能性を示した。
またPI3Kδ阻害剤は宿主の抗ウイルス免疫応答(インターフェロン産生)を増強し過剰な免疫応答を抑制することから、気道ウイルス感染症の治療薬となる可能性を示した。

Report

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

    (6 results)

All 2020 2019 2018

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (5 results)

  • [Journal Article] Inhibition of PI3Kδ Enhances Poly I:C-Induced Antiviral Responses and Inhibits Replication of Human Metapneumovirus in Murine Lungs and Human Bronchial Epithelial Cells2020

    • Author(s)
      Fujita Akitaka、Kan-o Keiko、Tonai Ken、Yamamoto Norio、Ogawa Tomohiro、Fukuyama Satoru、Nakanishi Yoichi、Matsumoto Koichiro
    • Journal Title

      Frontiers in Immunology

      Volume: 11 Pages: 432-432

    • DOI

      10.3389/fimmu.2020.00432

    • Related Report
      2020 Annual Research Report 2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] ヒトメタニューモウイルス感染症における疾患特異的宿主因子の解明:慢性閉塞性肺疾患とheat shock protein 702020

    • Author(s)
      神尾 敬子
    • Organizer
      第60回日本呼吸器学会学術講演会
    • Related Report
      2020 Annual Research Report 2019 Research-status Report
  • [Presentation] PI3Kδ阻害剤はヒト気道上皮細胞においてpoly I:C刺激が惹起する抗ウイルス免疫応答を増強する2020

    • Author(s)
      神尾 敬子
    • Organizer
      第84回日本呼吸器学会 ・日本結核 非結核性抗酸菌症学会 九州支部 春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 気道ウイルス感染症におけるPI3Kδの役割2020

    • Author(s)
      藤田 明孝
    • Organizer
      第85回日本呼吸器学会 ・日本結核 非結核性抗酸菌症学会 九州支部 春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] COPD・気管支喘息の増悪とヒトメタニューモウイルス2019

    • Author(s)
      神尾 敬子
    • Organizer
      第59回日本呼吸器学会学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] Enhanced replication of human metapneumovirus in primary cells from chronic obstructive pulmonary disease2018

    • Author(s)
      神尾 敬子
    • Organizer
      第58回日本呼吸器学会学術講演会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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