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難治性肺疾患における肺胞構成細胞機能解析

Research Project

Project/Area Number 25293190
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Respiratory organ internal medicine
Research InstitutionTohoku University

Principal Investigator

久保 裕司  東北大学, 医学(系)研究科(研究院), 准教授 (20332504)

Co-Investigator(Kenkyū-buntansha) 加藤 英政  埼玉医科大学, 医学部, 講師 (50292123)
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Adopted (Fiscal Year 2015)
Budget Amount *help
¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
Fiscal Year 2015: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2014: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2013: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Keywords肺細胞 / 呼吸器病学 / 遺伝子発現 / エピジェネティクス / 慢性閉塞性肺疾患 / 肺胞上皮細胞 / 血管内皮細胞 / 肺血管内皮細胞 / 喫煙 / 肺疾患
Outline of Annual Research Achievements

本研究の目的は, 新規開発したヒト肺細胞分離法を用いて,疾患肺(とくにCOPD肺)より肺胞II型上皮細胞および内皮細胞を分離し,それらの機能・遺伝子発現・エピゲノム修飾と疾患の関係をin vitroで解析することである.
平成25年度にCOPDおよびnon-COPD肺より分離した肺血管内皮細胞を用いて,遺伝子発現とエピゲノム修飾を網羅的に解析した.COPDとnon-COPD内皮細胞間において,遺伝子発現・miRNA発現に差異が認められ,これらの遺伝子発現とエピゲノム修飾がCOPD病態に影響していると考えられた.また,肺胞上皮細胞においてもCOPDとnon-COPD間で機能の違いが認められた.
平成26年度は,以前ヒト肺より分離した肺胞上皮前駆細胞を用いて,COPD肺胞上皮細胞の機能改善を目指した薬剤スクリーニングを行った.その結果,肺胞上皮細胞機能を改善し動物モデルにおいて気腫病変を改善できる方法を開発し,論文として報告した.薬剤スクリーニングからは,いくつかの候補化合物が見つかり,現在のその機能解析とヒト疾患肺を用いた病態への関与を解析中である.また,エピゲノムのコントロールにより肺胞上皮細胞機能の改善が得られることがわかり,動物実験の成果も含め,現在論文を投稿中である.同時に疾患肺由来のヒト肺細胞分離が進み,現在合計153例の検体が得られている.平成27年度は,これらの分離肺細胞も用いながら,難治性肺疾患の病態解明を進めていく.

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

ヒト肺血管内皮細胞解析に関しては,計画通り研究が進んでいる.また,肺胞上皮細胞機能改善を目指した新規治療戦略が見出されてきており,in vitroおよびin vivoの系で確認している.ヒト肺細胞の分離においても,順調に検体の蓄積がなされている.

Strategy for Future Research Activity

疾患肺(とくにCOPD肺)と健常肺での肺細胞機能解析を進めていく.また,集積したヒト肺細胞機能と臨床データの統合を進めていく.同時にオランダLeiden大学との共同研究押し進め,日本では入手困難な進行したCOPD肺(とくに内皮細胞機能に焦点を当て)を用いた解析を進める.

Expenditure Plan for Carryover Budget

現在,論文は再投稿中であり,平成27年度は次の段階に研究を進め,その研究費として使用する.

Report

(2 results)
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • Research Products

    (17 results)

All 2014 2013

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 2 results) Presentation (8 results) (of which Invited: 4 results) Book (1 results)

  • [Journal Article] ulmonary administration of integrin-nanoparticles regenerates collapsed alveoli.2014

    • Author(s)
      Horiguchi M, Kojima H, Sakai H, Kubo H, Yamashita C.
    • Journal Title

      J Control Release

      Volume: 187 Pages: 167-174

    • DOI

      10.1016/j.jconrel.2014.05.050

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Pulmonary administration of Am80 regenerates collapsed alveoli.2014

    • Author(s)
      Sakai H, Horiguchi M, Ozawa C, Akita T, Hirot K, Shudo K, Terada H, Makino K, Kubo H, Yamashita C.
    • Journal Title

      J Control Release

      Volume: 196 Pages: 154-160

    • DOI

      10.1016/j.jconrel.2014.10.004

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cyclin-dependent kinase-specific activity predicts the prognosis of stage I and stage II non-small cell lung cancer.2014

    • Author(s)
      Kubo H, Suzuki T, Matsushima T, Ishihara H, Uchino K, Suzuki S, Tada S, Yoshimura M, Kondo T.
    • Journal Title

      BMC Cancer

      Volume: 14 Issue: 1 Pages: 755-755

    • DOI

      10.1186/1471-2407-14-755

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Annual FEV1 changes and numbers of circulating endothelial microparticles in COPD patients.2014

    • Author(s)
      Takahashi T, Kobayashi S, Fujino N, Suzuki T, Ota C, Tando Y, Yamada M, Yanai M, Yamaya M, Kurosawa S, Yamauchi M, Kubo H
    • Journal Title

      BMJ Open

      Volume: 4 Issue: 3 Pages: e004571-e004571

    • DOI

      10.1136/bmjopen-2013-004571

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The role of microparticles in COPD.2014

    • Author(s)
      Takahashi T and Kubo H.
    • Journal Title

      Int J COPD

      Volume: 9 Pages: 30-314

    • DOI

      10.2147/copd.s38931

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] c-Kit immunoexpression delineates a putative endothelial progenitor cell population in developing human lungs.2014

    • Author(s)
      Suzuki T, Suzuki S, Fujino N, Ota C, Yamada M, Suzuki T, Yamaya M, Kondo T, Kubo H.
    • Journal Title

      Am J Physiol Lung Cell Mol Physiol

      Volume: 印刷中 Issue: 9 Pages: L855-L865

    • DOI

      10.1152/ajplung.00211.2013

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Differences in the released endothelial microparticle subtypes between humanpulmonary microvascular endothelial cells and aortic endothelial cells in vitro2013

    • Author(s)
      Takahashi T, Kobayashi S, Fujino N, Suzuki T, Ota C, Tando Y, He M, Yamada M, Kurosawa S, Yamaya M, Kubo H
    • Journal Title

      Exp Lung Res

      Volume: 39 Issue: 4-5 Pages: 155-161

    • DOI

      10.3109/01902148.2013.784932

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The increase of microRNA-21 during lung fibrosis and its contribution to epithelial-mesenchymal transition in pulmonary epithelial cells2013

    • Author(s)
      Mitsuhiro Yamada, Hiroshi Kubo, Chiharu Ota, Toru Takahashi, Yukiko Tando, Takaya Suzuki, Naoya Fujino, Tomonori Makiguchi, Kiyoshi Takagi, Takashi Suzuki, Masakazu Ichinose
    • Journal Title

      Respiratory research

      Volume: 14 Issue: 1 Pages: 95-95

    • DOI

      10.1186/1465-9921-14-95

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Presentation] 肺胞 II 型上皮細胞および肺胞上皮幹細胞の解析2014

    • Author(s)
      久保裕司
    • Organizer
      日本肺サーファクタント・界面医学会 第50回記念学術研究会
    • Place of Presentation
      マリオス(盛岡市)
    • Year and Date
      2014-10-25
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] AXL receptor tyrosine kinase inhibition drives epithelial differentiation of human lung progenitor cells.2014

    • Author(s)
      Fujino N, Kubo H, Maciewicz R.
    • Organizer
      James Black meeting: Inspired Biologics (British Pharmacological Society)
    • Place of Presentation
      Cambridge, UK
    • Year and Date
      2014-09-18 – 2014-09-19
    • Related Report
      2014 Annual Research Report
  • [Presentation] COPD増悪と内皮細胞2014

    • Author(s)
      Kubo H.
    • Organizer
      The 2nd Tongji Respiratory Forum
    • Place of Presentation
      上海,中国
    • Year and Date
      2014-07-11 – 2014-07-12
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] The Receptor For Advanced Glycation End-Products Of Alveolar Epithelial Cells Is A Key Modulator Of Hyperoxia-Induced Lung Injury2014

    • Author(s)
      Ota C, Ishizawa K, Yamada M, Tando Y, He M, Takahashi T, Yamaya M, Yamamoto Y, Yamamoto H, Kubo H.
    • Organizer
      American Thoracic Society International Conference
    • Place of Presentation
      San Diego, USA
    • Year and Date
      2014-05-17 – 2014-05-22
    • Related Report
      2014 Annual Research Report
  • [Presentation] Relationships Between Annual Changes In FEV1 And Numbers Of Circulating Endothelial Microparticles In COPD Patients.2013

    • Author(s)
      Takahashi T Kobayashi S, Fujino N, Suzuki T, Tando Y, Ota C, Yamada M, Kurosawa S, Yanai M, Yamaya M, Kubo H.
    • Organizer
      American Thoracic Society International Conference
    • Place of Presentation
      Philadelphia, USA
    • Related Report
      2013 Annual Research Report
  • [Presentation] Alveolar epithelial type II cell specific epigenetic modifications in idiopathic pulmonary fibrosis.2013

    • Author(s)
      Ota C, Fujino N, Yamada M, Tando Y, Motohashi H, Suzuki T, Takahashi T, Suzuki S, Kondo T, Kato H, Yamaya M, Kubo H.
    • Organizer
      American Thoracic Society International Conference
    • Place of Presentation
      Philadelphia, USA
    • Related Report
      2013 Annual Research Report
  • [Presentation] Stem cells in lung biology and pulmonary diseases.2013

    • Author(s)
      Kubo H.
    • Organizer
      International Symposium: Anatomical Science for advance in health and clinical therapy.
    • Place of Presentation
      仙台
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 学術講演:再生医療の肺への応用2013

    • Author(s)
      久保 裕司
    • Organizer
      第105回ACCP日本部会定期教育講演会
    • Place of Presentation
      横浜
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Book] Annual Review 呼吸器 20142014

    • Author(s)
      久保裕司
    • Total Pages
      273
    • Publisher
      中外医学社
    • Related Report
      2014 Annual Research Report

URL: 

Published: 2013-05-21   Modified: 2019-07-29  

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