Mitojenik (MAPK) ve hayatta kalim (AKT) sinyal yolaklarinin Speedy/RINGO proteini ile ilişkisinin SH-SY5Y nöroblastoma hücrelerinde aydinlatilmasi Identifying the role of Speedy/RINGO on mitogenic (MAPK) and survival AKT pathways intersection in SH-SY5Y neuroblastoma cells