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Pathophysiology of pulmonary arterial hypertension using pulmonary vascular endothelial cell-directed adeno-associated virus.

Research Project

Project/Area Number 20K17204
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 53030:Respiratory medicine-related
Research InstitutionNational Defense Medical College

Principal Investigator

Shiraishi Yasunaga  防衛医科大学校(医学教育部医学科進学課程及び専門課程、動物実験施設、共同利用研究施設、病院並びに防衛, 防衛医学研究センター 特殊環境衛生研究部門, 助教 (30813365)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords肺動脈性肺高血圧症 / アデノ随伴ウイルス / CtBP1
Outline of Research at the Start

肺動脈性肺高血圧症は心臓から肺に血液を送る血管の圧力が上昇する疾患で、比較的若い人に発症し、治療しなかった場合の転帰は悪い。なぜ肺動脈の血圧が上がるのかは解明されておらず、有効な治療法の開発のためにも原因の解明が望まれている。
本研究では肺動脈性肺高血圧症がどのように発症するのかを解明することを目的とする。動物の肺の血管に特異的に蛋白質発現を増加させることで、肺高血圧症の程度がどのように影響をうけるかを観察し、その蛋白質の役割を検討する。
これまでの報告から①代謝に影響するタンパクであるCTBP1、②長寿因子であるSIRT1、③低酸素で活性化するHIF1を候補となる蛋白質とて研究を行う。

Outline of Final Research Achievements

To elucidate the mechanism of pulmonary arterial hypertension (PAH), a specific genetic modification of pulmonary vascular endothelial cells was used in mice. Adeno-associated virus (AAV) was used to overexpress a signaling factor called CtBP1 in pulmonary vascular endothelial cells. The preparation and purification of AAV specific for pulmonary vascular endothelial cells was also improved, and the yield and purity of AAV were successfully increased. Although CtBP1 is an exacerbating factor in mouse PAH by increasing pulmonary artery systolic pressure in the short term, the lesion is reversible and different from human PAH, which is an exacerbating disease. Further studies with other signaling factors and with different animal species are needed.

Academic Significance and Societal Importance of the Research Achievements

この研究は肺動脈性肺高血圧症(PAH)の発症メカニズムを解明するために、肺血管内皮細胞に特異的な遺伝子改変を行う方法を開発した。学術的意義は、PAHの発症メカニズムに関する新たな知見を提供する点にある。この研究によって肺血管内皮細胞のシグナル因子の役割が明らかにされた。また、アデノ随伴ウイルスを用いた遺伝子改変手法の開発も重要な貢献である。社会的意義としては、この研究によって難病であるPAHの病態解明に一歩近づき、将来的には新たな治療法の開発に繋がる可能性がある。また、遺伝子治療の分野においてAAVの指向性や精製方法の改良が行われたことは、難病治療などへの応用にも影響を与える。

Report

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

    (7 results)

All 2022 2021 2020

All Journal Article (7 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 7 results,  Open Access: 6 results)

  • [Journal Article] Vascular Extracellular Signal-Regulated Kinase 1/2 Suppressed Perivascular Adipose Tissue-Induced Relaxation in Spontaneous Hypertensive Rats2022

    • Author(s)
      Arai-Nakaya Yuko、Shiraishi Yasunaga、Osaki Ayumu、Miyazaki Koji、Adachi Takeshi
    • Journal Title

      Vascular Failure

      Volume: 6 Issue: 1 Pages: 8-13

    • DOI

      10.30548/vascfail.6.1_8

    • ISSN
      2432-4477
    • Year and Date
      2022-12-25
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Resistance to Obesity in SOD1 Deficient Mice with a High-Fat/High-Sucrose Diet2022

    • Author(s)
      Sato Atsushi、Shiraishi Yasunaga、Kimura Toyokazu、Osaki Ayumu、Kagami Kazuki、Ido Yasuo、Adachi Takeshi
    • Journal Title

      Antioxidants

      Volume: 11 Issue: 7 Pages: 1403-1403

    • DOI

      10.3390/antiox11071403

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Substitution of the SERCA2 Cys <sup>674</sup> reactive thiol accelerates atherosclerosis by inducing endoplasmic reticulum stress and inflammation2022

    • Author(s)
      Su Hang、Mei Yu、Luo Shuangxue、Wu Haixia、He Yan、Shiraishi Yasunaga、Hu Pingping、Cohen Richard A.、Tong Xiaoyong
    • Journal Title

      British Journal of Pharmacology

      Volume: 179 Issue: 20 Pages: 4778-4791

    • DOI

      10.1111/bph.15912

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Metabolic Remodeling with Hepatosteatosis Induced Vascular Oxidative Stress in Hepatic ERK2 Deficiency Mice with High Fat Diets2022

    • Author(s)
      Kujiraoka Takehiko、Kagami Kazuki、Kimura Toyokazu、Ishinoda Yuki、Shiraishi Yasunaga、Ido Yasuo、Endo Shogo、Satoh Yasushi、Adachi Takeshi
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 23 Issue: 15 Pages: 8521-8521

    • DOI

      10.3390/ijms23158521

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of a high-yield, high-quality purification process for adeno-associated virus vectors that can be used in vivo without ultracentrifugation: Application to a lung endothelial cell-targeted adeno-associated virus2022

    • Author(s)
      Shiraishi, Y, Adachi, T, Cacicedo, J, Ido Y.
    • Journal Title

      FASEB Journal

      Volume: 36 Issue: 12

    • DOI

      10.1096/fj.202200840rr

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Deletion of Superoxide Dismutase 1 Blunted Inflammatory Aortic Remodeling in Hypertensive Mice under Angiotensin II Infusion2021

    • Author(s)
      Shiraishi Yasunaga、Ishigami Norio、Kujiraoka Takehiko、Sato Atsushi、Fujita Masanori、Ido Yasuo、Adachi Takeshi
    • Journal Title

      Antioxidants

      Volume: 10 Issue: 3 Pages: 471-471

    • DOI

      10.3390/antiox10030471

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Redox-dependent PPARγ/Tnpo1 complex formation enhances PPARγ nuclear localization and signaling2020

    • Author(s)
      Teratani Toshiaki、Tomita Kengo、Toma-Fukai Sachiko、Nakamura Yutaro、Itoh Toshimasa、Shimizu Hikaru、Shiraishi Yasunaga、Sugihara Nao、Higashiyama Masaaki、Shimizu Takahiko、Inoue Ikuo、Takenaka Yasuhiro、Hokari Ryota、Adachi Takeshi、Shimizu Toshiyuki、Miura Soichiro、Kanai Takanori
    • Journal Title

      Free Radical Biology and Medicine

      Volume: 156 Pages: 45-56

    • DOI

      10.1016/j.freeradbiomed.2020.06.005

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access

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

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