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Figure 1: Angelica gigas Nakai (#BE0622A1), one of the 420 natural products, showed the most effective anticancer effect. (a) The HeLa cells were treated with various concentrations of the indicated natural products for 24 h, and the MTT assay was subsequently performed. (b) The HeLa cells were treated with various concentrations of #BE0622A1, #BE1114A1, and #BE1197A1 for 24 h, and cell lysates were subjected to immunoblot analyses using specific antibodies for cleaved form of caspase-7, PARP, and GAPDH. (c) The HeLa cells were treated with various concentrations of #BE0622A1 for 24 h and apoptosis was analyzed by annexin V staining with FITC conjugation.