Figure 7. Increased tumorigenesis and metastasis-initiating ability by LC-MSCs. (A, B) Low number of A549.Luc cells and LC-MSCs were co-implanted subcutaneously into female Balb/c nude mice at different cell ratio. Bioluminescence images (A) and total bioluminescence of tumors (B) at the indicated time. (C, D) A549.Luc cells and LC-MSCs were mixed well and injected intravenously into female Balb/c nude mice. Bioluminescence images (A) and total bioluminescence of tumors (D) at the indicated time.