Research Article

Bothrops jararaca and Bothrops erythromelas Snake Venoms Promote Cell Cycle Arrest and Induce Apoptosis via the Mitochondrial Depolarization of Cervical Cancer Cells

Figure 3

Bothrops snake venoms induce apoptosis SiHa in HeLa cells (48 h). Cervical cancer cells were treated with BJ and BE 50 (μg/mL), with untreated cells compared and analyzed by annexin V-FITC/PI staining. Frames were divided into four quadrants: cells stained with annexin V and PI were classified as necrotic (Q1; annexin V−/PI+), late apoptotic (Q2; annexin V+/PI+), early apoptotic (Q3; annexin V+/PI−), or intact (Q4; annexin V−/PI−). Untreated cells (NC), Cisplatin (CDDP), B. jararaca (BJ), and B. erythromelas (BE).