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Erythroprotein-producing human hepatocellular carcinoma receptors (Eph receptors) compose a subfamily of transmembrane protein-tyrosine kinases receptors that takes part in numerous physiological and pathological processes.Eph family receptor-interacting proteins (Ephrins) are ligands for those receptors.Eph/ephrin system is responsible for the cytoskeleton activity,cell adhesion,intercellular connection,cellular shape as well as cell motility.It affects neuron development and functioning,bone and glucose homeostasis,immune system and correct function of enterocytes.Moreover Eph/ephrin system is one of the crucial ones in angiogenesis and lymphangiogenesis.With such a wide range of impact it is clear that disturbed function of this system leads to pathology.Eph/ephrin system is involved in carcinogenesis and cancer progression.Although the idea of participation of ephrin in carcinogenesis is obvious,the exact way remains unclear because of complex bi-directional signaling and cross-talks with other pathways.Further studies are necessary to find a new target for treatment.