Fig. 4From: Metformin inhibits melanoma cell metastasis by suppressing the miR-5100/SPINK5/STAT3 axisMetformin inhibits melanoma cells metastasis in vivo. A, B Metformin suppressed pulmonary metastasis. Pretreatment of metformin inhibited melanoma cell metastasis to lung more effectively. n = 5. The black dots on the surface of the lungs indicate metastasis foci. *p < 0.05, **p < 0.01, ***p < 0.001 versus controlBack to article page