Figure 3

Association between CD44 and ALDH1A1 expression in primary breast cancer. A. Gene expression of the total CD44 shows no significant correlation to expression of ALDH1A1 (Spearman ρ = -0.10, P = 0.28; n = 131). B. The gene expression of CD44 standard isoform was positively correlated to expression of ALDH1A1 (Spearman ρ = 0.49, P < 0.00001; n = 131).