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  • Title: Anticancer activity of fungal taxol derived from Botryodiplodia theobromae Pat., an endophytic fungus, against 7, 12 dimethyl benz(a)anthracene (DMBA)-induced mammary gland carcinogenesis in Sprague Dawley rats.
    Author: Pandi M, Manikandan R, Muthumary J.
    Journal: Biomed Pharmacother; 2010 Jan; 64(1):48-53. PubMed ID: 19762199.
    Abstract:
    Breast cancer is the second most prevalent cancer worldwide and their incidence increases gradually. Taxol (paclitaxel), a potent anticancer drug, is naturally isolated from the bark of the Pacific yew. Taxol is widely used in the treatment of ovarian, lung and breast cancer. The increased demand for taxol, coupled with its limited availability from the protected Pacific yew, has had researchers scrambling for alternate sources. The purpose of the present study is to investigate chemopreventive effect of fungal taxol derived from a novel endophytic fungus Botryodiplodia theobromae Pat., isolated from a medicinal plant Morinda citrifolia Linn. The fungal taxol is found to be active against the 7, 12 dimethyl benz(a)anthracene (DMBA)-induced mammary gland carcinogenesis in Sprague dawley rats. The enzymic and non-enzymic antioxidants i.e. superoxide dismutase (SOD), catalase (CAT), glutatione peroxidase (GPx), glutatione-S-transferase (GST), reduced glutathione (GSH), vitamin C and vitamin E were evaluated in control and experimental groups. Lipid peroxides levels (LPO) were also tested. Histological analysis of breast tissue was analyzed by haematoxylin and eosin staining to assess the cytoprotective role of fungal taxol active against breast cancer. Immunohistochemical analyses were also performed to evaluate the effect of fungal taxol on the inflammatory marker such as Cyclooxygenase-2 (COX-2) in control and experimental groups. The results showed that the fungal taxol significantly suppresses the DMBA-induced breast cancer in Sprague dawley rats.
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