XIST is up-regulated in human primary NSCLC tissues and cell lines.
Knockdown of XIST represses NSCLC cell proliferation, migration and invasion, in vitro and vivo.
XIST represses KLF2 expression via directly binding with EZH2 in NSCLC cells.
XIST's oncogenic functions are partially through directly binding with EZH2, and then epigenetically repressing KLF2 expression.