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  • Title: Cellular mechanisms and prospective applications of hypericin in photodynamic therapy.
    Author: Kiesslich T, Krammer B, Plaetzer K.
    Journal: Curr Med Chem; 2006; 13(18):2189-204. PubMed ID: 16918348.
    Abstract:
    During the last decades, Photodynamic Therapy (PDT) has been established as a powerful alternative approved by health agencies of several countries for treatment of various malignant and some non-malignant diseases. PDT makes use of the light-induced destruction of target cells by formation of cytotoxic products in the presence of a photosensitizing agent and oxygen. The light-dependent tumor destructive properties of Hypericin have drawn attention to its promising application as a photosensitizer in the frame of PDT. Hypericin is a naturally occurring secondary metabolite in plants of the Hypericum genus, with Hypericum perforatum (St. John's wort) as it is a commonly known representative. This review focuses on the cellular mechanisms of Hypericin-based phototoxicity and provides an outlook for future application of Hypericin as a fluorescing and photosensitizing agent for diagnosis and treatment of cancerous diseases, respectively.
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