Effect on xenograft tumor growth. When tumors reached a size of 50 mm3, the animals received an intravenous injection of mesenchymal stem cells (MSCs; arrow). The size of the tumors was measured until the end of the experiments (34 days after the HeLa injection and 24 days after the MSC injection).
Belmar-Lopez et al. BMC Medicine 2013 11:139 doi:10.1186/1741-7015-11-139