Unlike most genes escaping X-inactivation, a few ESCAPE genes showed higher expression in tumors from men, including the mitochondrial enzyme MAOA (FC = 1.8; q = 4.5 × 10−17), associated with the progression of prostate cancer, as well as, to a lesser extent, G-Protein coupled receptor GPR143 and the MSL3 gene involved in dosage compensation pathway in Drosophila (FC = 1.1; q = 0.01 and q = 0.02, respectively). Here, MAOA is linked to prostate cancer.