Attenuating Tumour Angiogenesis: A Preventive Role of Metformin against Breast Cancer

Figure 1

Metformin inhibits tumour cell growth. Human ovarian (SKOV-3), breast (MCF-7), and cervical (HeLa) cells were exposed to a series of concentrations of metformin for 24 h ((a), (b), and (c)) and 5 days ((d), (e), and (f)). Cell viability was assessed using a cell viability (CCK-8) assay. Data are presented as means ± SD, .

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