Chem. J. Chinese Universities

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Synthesis and Photodynamic Activity of a New Type of Pentalysine 2-Carbonylphthalocyanine Zinc

CHEN Jin-Can1, CHEN Hong-Wei1, LI Yong-Dong1, WANG Jun-Dong2, CHEN Nai-Sheng2, HUANG Jin-Ling2, HUANG Ming-Dong1*   

    1. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China;
    2. Institute of Functional Materials, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China
  • Received:2008-02-29 Revised:1900-01-01 Online:2008-11-10 Published:2008-11-10
  • Contact: HUANG Ming-Dong

Abstract: Phthalocyanine zinc(ZnPc) and its derivatives is a class of promising photosensitizer due to its superior photodynamic activity. However, the poor water solubility and the difficulty to obtain pure ZnPc compounds limit the clinical development of this class of photosensitizer. We developed a large scale preparation and purification of a new asymmetric phthalocyanine zinc compound, 2-carboxyphthalocyanine zinc. Here we report the synthesis of pentalysine 2-carbonylphthalocyanine zinc and its photodynamic activity. The compound was characterized by analytical and spectroscopic methods. The phototoxicity of this compound was evaluated in vitro with human liver cancer cell line(Bel7402), human gastric carcinoma cell line(BGC823), human leukemia cell line(K562) and human embryo lung fibroblast cell line(HELF). This compound shows not only the phototoxicity to these cells, but also improves water solubility. We also demonstrate that the presence of cell breaks down the aggregation of pentalysine 2-carbonylphthalocyanine zinc in aqueous solution.

Key words: Photosensitizer, Phthalocyanine zinc, Solid-phase synthesis, Cancer cell, Photodynamic activity

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