... threshold To obtain a cellular model of a- synuclein overexpres-sion, the human neuroblastoma cell line SH-SY5Y wasstably transfected with the plasmid containing human a- synuclein cDNA (a- syn). As a control, ... kinase, 60Sacidic ribosomal protein P2 (RPLP2), eukaryoticinitiation factor 5A (eIF 5A) , parathymosin, L7 ⁄L12,annexin A2 , annexin A5 , aldolase A, fascin 1 andperoxyredoxin 1] displayed quantitative ... b-gal cells in the presence of catalase only (cat) or in the presence of catalase and0.250 mm dopamine for 24 h (DA). Dopamine treat-ment significantly increased the expression of a- synuc-lein...