H19 and posterior cortical atrophy: The results on PCa cells are also supported by data obtained in the ex vivo OSC model (Figure 6, Figure S8), showing that, also in PCa fresh tissue explants derived from patients, the combined treatment causes a specific H19 downregulation paralleled by β integrin subunits induction, a phenotype that could be used as biomarker to define a specific subset of PCa patients.