IL20RA and chronic myelogenous leukemia, BCR-ABL1 positive: In contrast, these interactions with the associated intergenic region were markedly decreased or non-existent in cell lines that do not express IL20RA, such as human umbilical vein endothelial cells (HUVEC) or chronic myeloid leukaemia (K562) cells (Additional file 1: Figure S7), supporting a cell type dependent regulatory role for the disease-associated enhancer region and IL20RA.