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Photosensitizer targeting: Mitochondria-targeted photosensitizer enhances photodynamic effect and apoptosis

  • Mei Jie Jou*
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Using multi-photon laser scanning imaging microscopy the effects of subcellular localized PDT with the photosensitizer BPD-MA was studied in different cellular compartments including the mitochondria, the cytosol and the nucleus. Specifically, mitochondrial reactive oxygen species (mROS) and mitochondrial free calcium (mCa2+) were measured simultaneously during PDT with BPD-MA induced mitochondrial dysfunction. Intriguingly, PDT with BPD-MA-induced mROS formation and mCa2+ elevation as well as apoptotic death were found only when the mitochondrial compartment was illuminated. These data suggest that PDT with a mitochondria targeted photosensitizer can extensively enhance the efficacy of PDT via mROS and mCa2+-mediated apoptotic mechanisms.

Original languageEnglish
Title of host publicationSecond Asian and Pacific Rim Symposium on Biophotonics - Proceedings, APBP 2004
Pages91-92
Number of pages2
StatePublished - 2004
EventSecond Asian and Pacific Rim Symposium on Biophotonics, APBP 2004 - Taipei, Taiwan
Duration: 15 12 200417 12 2004

Publication series

NameSecond Asian and Pacific Rim Symposium on Biophotonics - Proceedings, APBP 2004

Conference

ConferenceSecond Asian and Pacific Rim Symposium on Biophotonics, APBP 2004
Country/TerritoryTaiwan
CityTaipei
Period15/12/0417/12/04

Keywords

  • Apoptosis
  • BPD-MA
  • Imaging microscopy
  • MCa
  • MROS
  • Mitochondria
  • Photodynamic therapy

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