<![CDATA[Colon cancer is one of the most deadly cancers in the world. Conventional treatments such as surgery, radiotherapy and chemotherapy are often limited, especially in metastatic cancer. Therefore, the development of alternative therapies, such as chemoprevention, becomes very important. This study aimed to test the anticancer potential of bengkal (Nauclea subdita) stem bark against WiDr colon cancer cells through cytotoxic, cell cycle, and apoptocic assays. The stem bark of bengkal was extracted using n-hexane and ethanol, then fractionated using dichloromethane (DCM). The results of the cytotoxic test using the MTT method showed that the DCM pH 3 fraction had the highest cytotoxic potential with an IC50 value of 112.81 ± 22.55 µg/mL against WiDr cells. However, the Selectivity Index (IS) value of the DCM pH 3 fraction showed low selectivity (<2). Cell cycle assay using flow cytometry indicated that DCM pH 3 fraction was able to inhibit cell cycle distribution. Furthermore, apoptocic test with Annexin V-FTIC/PI method showed that DCM fraction pH 3 triggered apoptocic mechanism in WiDr cancer cells. This study provides preliminary evidence that DCM fraction pH 3 of bengkal stem bark has anticancer potential against WiDr colon cancer cells, thus DCM fraction pH 3 of bengkal stem bark can be a source of WiDr colon anticancer agent.]]>
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