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. 2018 Mar 2;8:3929. doi: 10.1038/s41598-018-22054-w

Figure 6.

Figure 6

Metformin gel formulation induces apoptosis activation in mice tumors. (A) Representative Western blots of extracts from MDA-MB-231 tumors developed in untreated control mice (CTR), in mice treated with metformin aqueous solution (MH Sol) or metformin-loaded gel (MH Gel), using the antibody against the active fragment of caspase-3 (Cleaved caspase-3). Blots were stripped and reprobed with anti-α-tubulin antibody to normalize for differences in protein loading. (B) Densitometric analysis of Cleaved caspase-3 bands. Data presented as mean ± S.E.M from independently prepared tumor lysates (ANOVA with Dunnett’s post-hoc test: n.s. = not significant, *p < 0.05).