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2010 Fiscal Year Final Research Report

Diagnostic technique for the detection of colon adenoma using fluorescence lifetime imaging targeting epithelial intracellular molecules

Research Project

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Project/Area Number 21700469
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Biomedical engineering/Biological material science
Research InstitutionKyoto Prefectural University of Medicine

Principal Investigator

YAMAOKA Yoshihisa  Kyoto Prefectural University of Medicine, 医学研究科, 助教 (80405274)

Project Period (FY) 2009 – 2010
Keywords蛍光寿命 / 腫瘍診断 / 内視鏡 / 自家蛍光 / 大腸上皮細胞
Research Abstract

We demonstrated autofluorescence lifetime imaging of human colon specimens obtained by endoscopic mucosal resection (EMR). As a result, we found that there is a difference of fluorescence lifetime using the excitation and fluorescence wavelengths of FAD (flavin adenine dinucleotide) between normal and adenoma regions. This difference is mainly caused by fluorescence from mucosal epithelial intracellular molecules. Autofluorescence lifetime imaging would be a promising and practical method having potential for the detection of colon adenoma targeting intracellular environments.

  • Research Products

    (10 results)

All 2011 2010 2009

All Journal Article (3 results) (of which Peer Reviewed: 2 results) Presentation (5 results) Book (1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Precise analysis of the autofluorescence characteristics of rat colon under UVA and violet light excitation2011

    • Author(s)
      Nakano K, Harada Y, Yamaoka Y, Miyawaki K, Imaizumi K, Takaoka H, Nakaoka M, Wakabayashi N, Yoshikawa T, Takamatsu T
    • Journal Title

      Current Pharmaceutical Biotechnology in press.

    • Peer Reviewed
  • [Journal Article] Fine depth resolution of two-photon absorption-induced photoacoustic microscopy using low-frequency bandpass filtering2011

    • Author(s)
      Yamaoka Y, Nambu M, Takamatsu T
    • Journal Title

      Optics express in press.

    • Peer Reviewed
  • [Journal Article] Frequency-selective multiphoton-excitation-induced photoacoustic microscopy (MEPAM) to visualize the cross sections of dense objects2010

    • Author(s)
      Yamaoka Y, Nambu M, Takamatsu T
    • Journal Title

      Proceedings of SPIE vol.7564

      Pages: "756420-1"-"756420-9"

  • [Presentation] Frequency-selective multiphoton-excitation-induced photoacoustic microscopy (MEPAM) to visualize the cross sections of dense objects2010

    • Author(s)
      Yamaoka Y, Nambu M, Takamatsu T
    • Organizer
      SPIE Photonics West 2010
    • Place of Presentation
      San Francisco, USA.
    • Year and Date
      20100123-20100128
  • [Presentation] 光学分解能を有する多光子励起光音響イメージングシステムの開発2010

    • Author(s)
      山岡禎久, 南部美佳, 高松哲郎
    • Organizer
      第51回日本組織細胞化学会総会
    • Place of Presentation
      秋葉原コンベンションホール(東京)
    • Year and Date
      2010-09-04
  • [Presentation] Autofluorescence imaging to detect azoxymethane-induced colon tumors in rats2010

    • Author(s)
      原田義規, 宮脇喜一郎, 今泉克一, 中野圭明, 山岡禎久, 高松哲郎
    • Organizer
      第49回日本生体医工学会大会
    • Place of Presentation
      大阪国際交流センター(大阪)
    • Year and Date
      2010-04-27
  • [Presentation] Ultrasound frequency filtering in multiphoton excitation-induced photoacoustic microscopy2010

    • Author(s)
      山岡禎久, 南部美佳, 高松哲郎
    • Organizer
      第49回日本生体医工学会大会
    • Place of Presentation
      大阪国際交流センター(大阪)
    • Year and Date
      2010-04-27
  • [Presentation] Multiphoton excitation-induced photoacoustic microscopy in living tissues2009

    • Author(s)
      Yamaoka Y, Nambu M, Takamatsu T
    • Organizer
      Second Japanese-French Workshop together with First American-French meeting on Nanobiophotonics
    • Place of Presentation
      Marseille, France.
    • Year and Date
      20091026-20091029
  • [Book] InTech-Open Access Publisher, Chapter "Highly fluorescent macrophages in colonic mucosa under autofluorescence imaging endoscopy : brief case report" in Endoscopy edited by Prof.2011

    • Author(s)
      Harada Y, Wakabayashi N, Imaizumi K, Miyawaki K, Nakano K, Yamaoka Y, Yanagisawa A, Yoshikawa T, Takamatsu T
    • Total Pages
      5
    • Publisher
      Oliviu Pascu
  • [Patent(Industrial Property Rights)] 光音響断層撮影装置2009

    • Inventor(s)
      山岡禎久、高松哲郎
    • Industrial Property Rights Holder
      山岡禎久、高松哲郎
    • Industrial Property Number
      特許,特願2009-196237
    • Filing Date
      2009-08-27

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Published: 2012-02-13   Modified: 2016-04-21  

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