Aberrant NANOG expression is commonly found in multiple cancer types including lung ADC (Watanabe, 2009; Du et al, 2013; Vaira et al, 2013; Li et al, 2013a; Li et al, 2013b; Liu et al, 2014; Park et al, 2016; Zhao et al, 2018). This evidence concerns the gene NANOG and cancer.