Abstract:Ewing sarcoma (ES) is a tumor driven by EWS-ETS fusion proteins. Yet, the same fusions are present in localized and metastatic tumors that carry strikingly different prognoses. Despite low levels of genomic instability in primary ES tumors, the presence of complex karyotypes is one of a few adverse prognostic factors, implicating an acquired chromosomal instability (CIN) in ES progression. As transcriptional targets of EWS-ETS, neuropeptide Y (NPY) and its Y5 receptor (Y5R) are highly expressed in ES and furth… Show more
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