Cyanines as efficient photosensitizers in photodynamic reaction: Photophysical properties and <Emphasis Type="Italic">in vitro</Emphasis> photodynamic activity |
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Authors: | J Kulbacka A Pola D Mosiadz A Choromanska P Nowak M Kotulska M Majkowski A Hryniewicz-Jankowska L Purzyc J Saczko |
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Institution: | Medical University, Department of Medical Biochemistry, Wroclaw, Poland. jkulbacka@gmail.com |
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Abstract: | The purpose of the present study was to explore the potential application of cyanines in photodynamic treatment. The photophysical
features of four cyanines (KF570, HM118, FBF-749, and ER-139) were investigated by elemental and spectral analyses. Two malignant
cell lines (MCF-7/WT and MCF-7/DOX) were used to test the potential for use in the photodynamic therapy. The cytotoxic effects
of these dyes were determined by the MTT assay after 4 and 24 h of incubation with the cyanine. KF570 and HM118 were irradiated
with red light (630-nm filter) and FBF-749 and ER-139 with green light (435-nm filter). The results showed that the cyanine
HM118 demonstrated a major phototoxic effect. It was also noted that the efficiency of photodynamic therapy was higher in
the doxorubicin-resistant cell line (MCF-7/DOX). |
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