ABCC4 and hereditary elliptocytosis: Interestingly, functional enrichment analysis of dysregulated transcripts revealed specific bioprocesses characteristic of MRP4 HE tumors; strongly associated with the regulation of cell migration (p = 3.65e−8), chemotaxis (p = 1.21e−7), and cell adhesion (p = 1.98e−7), consistent with a mesenchymal and aggressive phenotype.