PPARG and neuroblastoma: The aim of our study was to evaluate the role of the PPARγ agonist rosiglitazone (RGZ) on cell growth, adhesion, invasiveness and apoptosis in two different NB cell lines (SK-N-AS and SH-SY5Y), which express PPARγ (Servidei et al, 2004, Valentiner et al, 2005).