Abstract
Hematoporphyrin monomethyl ether (Hemoporfin) is a novel porphyrin-related photosensitizer. Photocytotoxic effect of Hemoporfin to ovarian cancer is still unclear. We used human epithelial ovarian carcinoma cell line SKOV3 and its xenograft model in nude mice to investigate the Hemoporfin-based photodynamic therapy (PDT) for ovarian cancer. The growth rates of SKOV3 cells were determined by MTT assays. Flow cytometry combined with dual Annexin V/PI staining was used to identify the death mode of the cells following PDT. We demonstrated that Hemoprofin-based PDT induced significant cell death via direct necrosis induction, and the photocytotoxity to SKOV3 cells is dose related. With SKOV3 xenograft model in nude mouse, we further demonstrated that Hemoporfin-based PDT is effective for controlling the tumor growth. Our results suggest that Hemoporfin is a promising novel photosensitizer for the treatment of ovarian cancer and merit further evaluation in the clinical practice.
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