KIT and lentivirus infection: The overexpression of miR-200c resulted in fewer CD44+CD117+CSCs with lentivirus miR-200c (mean ± SD: 70.81% ± 2.16%), in the bottom of the chamber insert, than in the CD44+CD117+CSCs with lentivirus miR-200c compared with the CD44+CD117+CSCs with lentivirus mock (125.92% ± 2.14%), or than the CD44+CD117+CSCs without lentivirus infection (162.26% ± 6.78%) (Figure 2C, 2F).