MYCN and neuroblastoma: The expression of EP2 is elevated among thenonsurviving patients compared to surviving NB patients, indicatingthat EP2 expression is coupled to poor survival of NB patients.35 Similarly, EP2 receptor is expressed at higherlevels in NB patients with oncogenic MYCN gene amplification comparedto NB patients with MYCN normal status suggesting a strong link toEP2 receptor in NB.