Anticancer activity of Ocimum sanctum

Abstract

Ocimum sanctum L. (Labiatae), a plant with various medicinal properties, has been investigated against human fibrosarcoma cells (HFS cells) in culture. Treatment with an ethanolic extract of Ocimum sanctum induced cytotoxicity at 50 μg/ml and above. Morphologically the cells showed shrunken cytoplasm and condensed nuclei. The DNA was found to be fragmented on observation in agarose gel electrophoresis. Biochemically the extract-treated HFS cells showed depleted intracellular glutathione and increased levels of lipid peroxidation products. Administration of aqueous and ethanolic extracts of Ocimum sanctum to mice bearing Sarcoma-180 solid tumors mediated a significant reduction in tumor volume and an increase in lifespan. These observations clearly indicate Ocimum sanctum extracts possess anticancer activity.