CDB20:0002736 EPO — EPHB4

Experimentally validated in Human; Orthology-inferred in Mouse, Rat, Frog, Zebrafish, Chicken, Macaque, Pig, Dog, Cow, Chimp, Horse, Marmoset, Sheep

Title

Journal:; Year Published:

Abstract

Erythropoietin Stimulates Tumor Growth via EphB4.

Cancer cell, 2015; PubMed, Homo sapiens EPO — Homo sapiens EPHB4
ABSTRACT: While recombinant human erythropoietin (rhEpo) has been widely used to treat anemia in cancer patients, concerns about its adverse effects on patient survival have emerged. A lack of correlation between expression of the canonical EpoR and rhEpo's effects on cancer cells prompted us to consider the existence of an alternative Epo receptor. Here, we identified EphB4 as an Epo receptor that triggers downstream signaling via STAT3 and promotes rhEpo-induced tumor growth and progression. In human ovarian and breast cancer samples, expression of EphB4 rather than the canonical EpoR correlated with decreased disease-specific survival in rhEpo-treated patients. These results identify EphB4 as a critical mediator of erythropoietin-induced tumor progression and further provide clinically significant dimension to the biology of erythropoietin.
Basic Information on EPO
Ligand Name: erythropoietin
Other Symbols: EP
Ligand Location: secreted based on perplexity, uniprot
HGNC Gene Symbol Report: EPO
GeneCards: EPO
HGNC Gene Group: Receptor ligands
Interactions with other Receptors for EPO
Basic Information on EPHB4
Receptor Name: EPH receptor B4
Other Symbols: HTK, Tyro11
Receptor Location: cell membrane based on perplexity, uniprot
Interactions with other Ligands for EPHB4