Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
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Σάββατο 23 Απριλίου 2016

Benzochloroporphyrin derivative photosensitizer-mediated photodynamic therapy for Ewing sarcoma

Publication date: July 2016
Source:Journal of Photochemistry and Photobiology B: Biology, Volume 160
Author(s): Mengxiong Sun, Chenghao Zhou, Hui Zeng, Fei Yin, Zhuoying Wang, Jianzhong Yao, Yingqi Hua, Zhengdong Cai
In this study, we evaluated the photodynamic efficacy of a new photosensitizer, benzochloroporphyrin derivative 18 (BCPD-18), in Ewing sarcoma. We found that BCPD-18 decreased the viability of TC-71 cells irradiated by 670nm laser in a concentration dependent manner. We also observed cells undergoing apoptosis as well as cell cycle arrest at the G2M phase after BCPD–18-mediated photodynamic therapy (BCPD-PDT). In addition, in vivo study (subcutaneous and orthotopic models) showed that BCPD-PDT reduced tumor size, tumor weight and tumor-bearing leg weight. After PDT, apoptosis was shown in vivo. Bax expression was increased, and Bcl-2 expression was decreased. This study provides evidence that BCPD-18 could probably be a useful photosensitizer in PDT for Ewing sarcoma.

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