• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Therapeutic strategy for maintenance of lymphocyte function to improve the prognosis of sepsis

Research Project

Project/Area Number 17K11592
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Emergency medicine
Research InstitutionTokai University (2019)
Keio University (2017-2018)

Principal Investigator

SUZUKI Takeshi  東海大学, 医学部, 教授 (80327600)

Co-Investigator(Kenkyū-buntansha) 南嶋 しづか  慶應義塾大学, 医学部(信濃町), 講師 (20622088)
加藤 純悟  慶應義塾大学, 医学部(信濃町), 助教 (40465018)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords敗血症 / リンパ球 / アポトーシス / Kv1.3 / 免疫能維持 / Tリンパ球 / カリウムチャネル
Outline of Final Research Achievements

In this study, we evaluated T-lymphocyte dysfunction and apoptosis in septic model according to the severity of sepsis, and examined whether transfer of T-lymphocytes which have resistance to apoptosis through inactivation of Kv1.3, which is associated with apoptosis induction, can improve the prognosis of sepsis in cecum puncture and ligation (CLP) septic model. In CLP septic model, the number of normal T lymphocytes in spleen was reduced according to the severity of sepsis. In the next experiment, we failed to make a plasmid to inactivate the function of Kv1.3 in T-lymphocytes, thus, studies could not be proceeded anymore.

Academic Significance and Societal Importance of the Research Achievements

目覚ましい医学の進歩にも関わらず、敗血症の死亡率はいまだに高く、予後改善に向けての治療法の確立は急務である。リンパ球アポトーシスによる免疫能低下は、敗血症患者予後に関わる重要な部分であり、本研究にてリンパ球機能維持が敗血症予後改善につながることが証明できれば、新たな治療戦略に向けて前進できるものと考えていた。しかし、技術的な問題から、リンパ球がアポトーシスに対して耐性を獲得するためのプラスミドの作成がうまくいかずに、研究は中断されてしまった。今後はこの点をクリアしたうえで、敗血症予後改善に向けた研究を続けていきたい。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (1 results)

All 2019

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

  • [Journal Article] Beta-blocker therapy preserves normal splenic T-lymphocyte numbers reduced in proportion to sepsis severity in a sepsis model2019

    • Author(s)
      Suzuki T, Inoue K, Igarashi T, Kato J, Nagata H, Yamada T, Minamishima S, Morisaki H
    • Journal Title

      Critical Care Research and Practice

      Volume: 8157482 Pages: 1-5

    • DOI

      10.1155/2019/8157482

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi