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Development of methods for body fluid identification based on DNA methylation.

Research Project

Project/Area Number 26860472
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Legal medicine
Research InstitutionNational Research Institute of Police Science

Principal Investigator

Watanabe Ken  科学警察研究所, 法科学第一部, 研究員 (20532047)

Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords物体検査 / 人体液斑の同定 / DNAメチル化
Outline of Final Research Achievements

In this study, we developed MethyLight methods (quantitative real-time methylation-specific PCR) for quantitating the semen-specifically unmethylated region, DACT1 and the blood-specifically methylated region, cg06379435. The threshold methylation ratios for semen or blood identification were set by analyzing DNA from various body fluid samples using these methods. The use of these thresholds accurately identified semen or blood from other samples including highly aged semen and blood stains. Because a realtime PCR-based method requires no substantial work beyond preparing the PCR reaction mixture, simple and quick analysis may be realized with a reduced risk of contamination. Therefore, we suggest that these methods are more suited to forensic work.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (6 results)

All 2017 2016 2015 2014

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 2 results) Presentation (4 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Evaluation of a blood-specific DNA methylated region and trial for allele-specific blood identification from mixed body fluid DNA.2016

    • Author(s)
      Watanabe K, Akutsu T, Takamura A, Sakurada K.
    • Journal Title

      Legal Medicine

      Volume: 22 Pages: 49-53

    • DOI

      10.1016/j.legalmed.2016.08.004

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Development of a Real-Time PCR-Based Method for Analyzing Semen-Specific Unmethylated DNA Regions and Methylation Status in Aged Body Fluid Stains2016

    • Author(s)
      Ken Watanabe, Tomoko Akutsu, Koichi Sakurada
    • Journal Title

      Journal of Forensic Sciences

      Volume: 61 Issue: S1

    • DOI

      10.1111/1556-4029.12941

    • Related Report
      2016 Annual Research Report 2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Development and Evaluation of Real-time PCR Methods for DNA Methylation-based identification of Semen and Blood.2017

    • Author(s)
      Watanabe K, Takamura A, Akutsu T.
    • Organizer
      AAFS 69th Annual Scientific Meeting
    • Place of Presentation
      米国(ニューオリンズ)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 血液特異的DNAメチル化部位を指標としたリアルタイムPCRによる血液証明法の検討2016

    • Author(s)
      渡邊 賢、阿久津 智子、髙村 彩里、櫻田 宏一
    • Organizer
      第85回日本法医学会学術関東地方集会
    • Place of Presentation
      神奈川歯科大学
    • Related Report
      2016 Annual Research Report
  • [Presentation] リアルタイムPCRを用いた精液特異的DNA脱メチル化部位の定量的解析法の確立2015

    • Author(s)
      渡邊 賢、阿久津智子、櫻田宏一
    • Organizer
      第99次日本法医学会学術全国集会
    • Place of Presentation
      高知 高知市文化プラザ
    • Year and Date
      2015-06-12
    • Related Report
      2015 Research-status Report
  • [Presentation] リアルタイムPCRを用いたDNA脱メチル化部位を指標とする精液証明法の確立2014

    • Author(s)
      渡邊 賢、阿久津 智子、櫻田 宏一
    • Organizer
      第83回日本法医学会学術関東地方集会
    • Place of Presentation
      東京女子医科大学
    • Year and Date
      2014-11-08
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2018-03-22  

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