We then tested the expression of HIF2α in LNCaP and C4-2 cells after co-culture with BM-MSCs (Figure 1d), and found the increased HIF2α at protein (Figure 1d) and not at mRNA levels (Figure 1e) in these two PCa cells when co-cultured with BM-MSCs. Here, EPAS1 is linked to posterior cortical atrophy.