Tan et al., investigated the relationship between sex differences in fatty acid-binding protein7 (FABP7) and POU class 3 homeobox 2 (BRN2) expression in RCC and found that FABP7 was more expressed in males while BRN2 was highly expressed in females, and showed that expression levels of FABP7 and BRN2 had prognostic value in females [24]. Here, FABP7 is linked to renal cell carcinoma.