IL1B and posterior cortical atrophy: Next, to address the functional role of FABP4 secreted by PC-3 cells in the PCa stroma, prostate stromal cells (PrSC) were treated with recombinant FABP4 (rFABP4) or PC-3 CM, and secreted cytokines were measured by a Human cytokine array for Interleukin (IL)-8, IL-1β, IL-6, IL-10, TNFα, and IL-12p70.