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Gender differences of neutrophil extracellular traps and neutrophil apoptosis in septic patients.

Research Project

Project/Area Number 25870422
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Emergency medicine
Laboratory medicine
Research InstitutionKobe University

Principal Investigator

Michiko Ishikawa  神戸大学, 保健学研究科, 研究員 (40566121)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
KeywordsNETs / 性差 / 敗血症 / アポトーシス / 患者検体 / 好中球
Outline of Final Research Achievements

Neutrophils were isolated from septic patients and healthy volunteers and harvested for 4 hours. The apoptosis were assessed by Anexine V using flowcytometer, and the area of neutrophil extracellular traps (NETs) was assessed by immunofluorescence staining using anti-H1 antibody and anti-neutrophil elastase antibody. Neutrophils from healthy volunteers were stimulated by lipopolysaccharide. And the plasma cell-free DNA was assessed by realtime RT-PCR using human globin gene. Septic patients showed high cell-free DNA concentrations, low neutrophil apoptosis%, larger NETs areas. The apoptosis% of female was significantly lower than that of male in LPS-stimulated healthy volunteers’ neutrophils. NETs area of female tended to be higher than that of male in septic shock patients.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (2 results)

All 2015

All Presentation (2 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] Antithrombin III reduced neutrophil extracellular traps of lipopolysaccharide-stimulated neutrophils2015

    • Author(s)
      Michiko Aoyama-Ishikawa, Hayato Yamashita, Nobuki Oka, Makoto Usami, Atsunori Nakao, Joji Kotani
    • Organizer
      8th Asian Conference for Emergency Medicine
    • Place of Presentation
      Taipei International Convention Center (Taipei, China)
    • Year and Date
      2015-11-07
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 敗血症病態における好中球アポトーシスへのアンチトロンビンⅢの効果について2015

    • Author(s)
      石川倫子、山下勇人、宇佐美眞、中尾篤典、小谷穣治
    • Organizer
      第30回日本Shock学会総会
    • Place of Presentation
      京王プラザホテル八王子(東京都、八王子市)
    • Year and Date
      2015-05-22
    • Related Report
      2015 Annual Research Report

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Published: 2014-07-25   Modified: 2019-07-29  

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