Figure 4.
Analysis of tumors derived from xenografts of B16-LacZ cells or LLCs co-injected with MSCs. (A) Representative photographs of B16-LacZ tumors and LLC tumors. (B) B16-LacZ cells and MSCs were co-injected into the right side of the abdomen of C57BL/6 mice at a ratio of 1:0.2, 1:1 or 1:5. Tumor volume was calculated at 2-day intervals (n = 7; *P < 0.05; **P < 0.01). (C) LLCs and MSCs were co-injected as described for B16-LacZ cells, and tumor volume was calculated at 2-day intervals (n = 7; *P < 0.05, **P < 0.01).