(E and F) The mRNA and protein expression of stemness markers (ALDH1, SOX2, OCT4, and Nanog) in cells described in A and B. (G) Pearson correlation analysis of the expression of CYP4Z1 and Nanog in basal-like breast cancer (n = 252, P < 0.01). The gene discussed is NANOG; the disease is breast cancer.