Under phase-contrast microscopy, the formation of apoptotic bodies and dead cells was clearly seen in both H460- and H2170-derived CD133+ cells cultured with MSC-TRAIL when compared to the MSC-EV (cultured at a 1:1 NSCLC-cell-to-MSC ratio), depicted in Figure 5A. However, no apoptotic body was detected in the A549 cell line. The gene discussed is PROM1; the disease is non-small cell lung carcinoma.