Metal phthalocyanine as photosensitizer for photodynamic therapy (PDT) |
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| Authors: | Jinling Huang Naisheng Chen Jiandong Huang Ersheng Liu Jinping Xue Suling Yang Ziqiang HUANG and Jiancheng Sun |
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| Institution: | (1) Institute of Research on Functional Materials Department of Chemistry, Fuzhou University, 350002 Fuzhou, China;(2) Pharmacology Research Section, Fujian Medical University, 350004 Fuzhou, China |
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| Abstract: | A series of sulfonated (S) phthalimidomethyl (P) zinc phthalocyanines (Pc) was synthesized in a reaction, in which both kinds
of substituents were introduced to ZnPc simultaneously. The products were separated by HPLC. The five different fractions
obtained were further purified by a membrane separation method, and then characterized by UV/Vis, IR, element analysis and
the abilities to generate singlet oxygen upon irradiation by light as well as a preliminary determination ofin vitro antitumor activities. The results show that one of the five separating parts with formula of ZnPcS2P2 exhibited rather good PDT activity. The compound was further characterized by NMR, MS and thermal analysis. Studies onin vivo antitumor activities of ZnPcS2P2 as photosensitizer show that its inhibitory rate was up to 89.8% and 90.8% for S180 and U14 solid tumors transplanted in mice respectively when the dosage of drug was 2 mg/kg and the dosage of laser light with 670
nm wavelength was 72 J/cm2. Several structural factors influenced on the PDT activities were discussed. |
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| Keywords: | metal phthalocyanine photodynamic therapy amphiphilicity anticancer photosensitizer |
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