SOAT1 and posterior cortical atrophy: To explore the interconnection between SOAT1 expression and androgen receptor (AR) signaling on PCa progression [26] we examined the gene expression of SOAT1 and AR and found a good and statistically significant correlation in both the TCGA (Spearman ρ = 0.53, p < 0.001, Fig. S2A) and the DreamTeam cohort (Spearman ρ = 0.3, p < 0.01, Fig S2B).