PRL and cancer: The functional annotation of these putative targets revealed that these genes are mainly involved in growth hormone action, secretion, and synthesis, pathways in cancer, the estrogen signaling pathway, pI3K-Akt and ErbB signaling pathways, colorectal cancer, breast cancer, the Rap1 signaling pathway, progesterone-mediated oocyte maturation, endometrial cancer, and the prolactin signaling pathway.