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(A) Migration assay for colon cancer cells incubated with IL-6 and metformin (HCT116). (B) Invasion assay for colon cancer cells (HCT 116). (C) Immunofluorescence confocal microscopy analysis of HCT 116 colon cancer cells treated with IL-6 and metformin. Met, metformin. *p < 0.05, **p < 0.01.
