EphB2

EphB2 is the largest and most widely expressed EphB receptor and a key organizer of tissue compartmentalization. In the intestine, bidirectional EphB2-ephrin-B signaling along the crypt-villus axis maintains proliferative and differentiated zones, and in the nervous system it controls synapse formation, dendritic spine maturation and learning-related plasticity. In colorectal cancer, EphB2 behaves paradoxically: it acts as a tumor suppressor at early adenoma stages by restricting cell mixing, while higher expression at invasive stages associates with metastasis and poor outcome. EphB2 is also expressed on arteries and in prostate tissue. Recombinant EphB2 is a standard reagent for these epithelial, neural and oncological studies.