In vivo we implanted an ad-mixture of labeled colon cancer cells HT29-FmC (Fig. 4C), lung cancer cells Calu1-FmC (Fig. 4D) and glioblastoma cells, LN229-FmC (Fig. 4E) with MSC-ENb-TRAIL or MSC-GFP and followed tumor cell fate by Fluc bioluminescent imaging. The gene discussed is TNFSF10; the disease is lung cancer.