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Molecular biology of the mechanism of tobacco-induced reduction of lung barrier function based on HIF-1 activity analysis

Research Project

Project/Area Number 20K09210
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 55050:Anesthesiology-related
Research InstitutionKansai Medical University

Principal Investigator

NISHI Kenichiro  関西医科大学, 医学部, 研究員 (50340716)

Co-Investigator(Kenkyū-buntansha) 広田 喜一  関西医科大学, 医学部, 研究員 (00283606)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords喫煙 / タバコ / タバコ抽出液 / 肺胞上皮 / 肺血管内皮 / 細胞間バリア / 低酸素誘導性因子 / 肺バリア / 低酸素誘導性因子1 / 炎症
Outline of Research at the Start

喫煙は気管支肺胞系の解剖学的変化を通じて肺機能に大きな影響を及ぼし集中治療を含む周術期の患者全身管理に影響を与え予後に影響することが判明している。この現象の分子基盤として肺胞上皮・肺血管内皮で形成される肺胞バリア機能の惹起される炎症による低下がある。
本研究では、周術期にダイナミックな酸素環境の変化を受ける肺胞上皮細胞・肺血管内皮細胞の細胞間バリアの機能に着目してタバコが転写因子HIF-1(低酸素誘導性因子1)活性化調節を介してバリア機能低下をもたらす分子機序とその予防法の確立を細胞生物学・分子生物学・バイオインフォマティクスを統合した手法を用いて目指す。

Outline of Final Research Achievements

We developed a system to measure the vascular permeability of intercellular barriers in this study and confirmed that the permeability can be quantified using the fluorescent substance FITC-dextran as an indicator. Vascular permeability was observed to be altered by lipopolysaccharide (LPS) treatment, HIF activation (hypoxic environment and use of HIF-PH inhibitors) and cigarette smoke extract (CSE) conditioning. Next-generation sequencing techniques confirmed that these treatments affect gene expression in human pulmonary microvascular endothelial cells (HPMECs), particularly the expression of intercellular adhesion molecules. From these results, we conclude that CSE increases the permeability of the intercellular barrier via HIF.

Academic Significance and Societal Importance of the Research Achievements

タバコ-バリア機能の低下、HIF-1-バリア機能の低下という現象同士をつなぎ、タバコ-HIF-1-バリア機能の低下という関係が存在することを主に肺胞上皮、肺血管内皮のバリア機能を標的に研究することが本研究の具体的な目的であった。この過程でシグナル伝達を改変することでタバコ-バリア機能の低下という関連を切断する端緒をつかむ事も本研究の要素であり、本研究成果は報告者らの今までの研究成果に立脚した独自性の高いものである。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (8 results)

All 2022 2021 2020

All Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 5 results)

  • [Journal Article] Activation of transcription factor HIF inhibits IL-1β-induced NO production in primary cultured rat hepatocytes2022

    • Author(s)
      Yoshida Terufumi、Okumura Tadayoshi、Matsuo Yoshiyuki、Okuyama Tetsuya、Michiura Taku、Kaibori Masaki、Umezaki Nodoka、Bono Hidemasa、Hirota Kiichi、Sekimoto Mitsugu
    • Journal Title

      Nitric Oxide

      Volume: 124 Pages: 1-14

    • DOI

      10.1016/j.niox.2022.04.002

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Cigarette Smoke Extract Activates Hypoxia-Inducible Factors in a Reactive Oxygen Species-Dependent Manner in Stroma Cells from Human Endometrium2021

    • Author(s)
      Kida Naoko、Matsuo Yoshiyuki、Hashimoto Yoshiko、Nishi Kenichiro、Tsuzuki-Nakao Tomoko、Bono Hidemasa、Maruyama Tetsuo、Hirota Kiichi、Okada Hidetaka
    • Journal Title

      Antioxidants

      Volume: 10 Issue: 1 Pages: 48-48

    • DOI

      10.3390/antiox10010048

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Inhibiting SARS-CoV-2 infection in vitro by suppressing its receptor, angiotensin-converting enzyme 2, via aryl-hydrocarbon receptor signal2021

    • Author(s)
      Tanimoto Keiji、Hirota Kiichi、Fukazawa Takahiro、Matsuo Yoshiyuki、Nomura Toshihito、Tanuza Nazmul、Hirohashi Nobuyuki、Bono Hidemasa、Sakaguchi Takemasa
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 16629-16629

    • DOI

      10.1038/s41598-021-96109-w

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of antitumor biguanides targeting energy metabolism and stress responses in the tumor microenvironment2021

    • Author(s)
      Sakai Takayuki、Matsuo Yoshiyuki、Okuda Kensuke、Hirota Kiichi、Tsuji Mieko、Hirayama Tasuku、Nagasawa Hideko
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 4852-4852

    • DOI

      10.1038/s41598-021-83708-w

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Meta-Analysis of Hypoxic Transcriptomes from Public Databases.2020

    • Author(s)
      Bono H, Hirota K
    • Journal Title

      Biomedicines

      Volume: 8 Issue: 1 Pages: 1-1

    • DOI

      10.3390/biomedicines8010010

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Basic Biology of Hypoxic Responses Mediated by the Transcription Factor HIFs and its Implication for Medicine2020

    • Author(s)
      Hirota K.
    • Journal Title

      Biomedicines

      Volume: 8 Issue: 2 Pages: 2-2

    • DOI

      10.3390/biomedicines8020032

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] ミトコンドリアの酸素代謝異常と疾患2020

    • Author(s)
      広田 喜一
    • Journal Title

      医学のあゆみ

      Volume: 274 Pages: 248-252

    • Related Report
      2020 Research-status Report
  • [Journal Article] 周術期炎症マーカー:現状と課題,今後の展望 炎症応答の一歩先へ2020

    • Author(s)
      松川 志乃, 広田 喜一
    • Journal Title

      Life Support and Anesthesia

      Volume: 27 Pages: 852-857

    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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