Research Article

The Biguanides Metformin and Buformin in Combination with 2-Deoxy-glucose or WZB-117 Inhibit the Viability of Highly Resistant Human Lung Cancer Cells

Figure 5

Metformin and buformin in combination with 2-DG or WZB-117 inhibit the viability of H460 lung cancer cells growing as floating tumorspheres (anchorage-independent). The bars indicated the mean OD of sphere-forming H460 cells after treatments with different concentrations of drugs measured by the CCK assay. indicates and , respectively (ANOVA).
(a) Metformin±2-DG
(b) Buformin±2-DG
(c) Metformin±WZB-117
(d) Buformin±WZB-117