FABP4 and neoplasm: Adipocytes are the other cell type highly enriched in the omentum that have been shown to have a symbiotic relationship with EOCs, and are coined cancer associated adipocytes (CAA) [224] (Fig. 3).These CAAs can act as powerhouses during advanced disease, providing the necessary energy for rapidly growing tumor cells via FABP4 [212], a chaperone for free fatty acids.