Only two out of 45 analyzed ABC transporter genes, namely ABCC4 (FC 2.49; p = 0.007) and ABCG1 (FC 1.48; p = 0.029), were up-regulated in PCa in comparison to NPT (Fig. 1b and c, Additional file 1). The gene discussed is ABCG1; the disease is posterior cortical atrophy.