TRF pre-treatment in 6-OHDA-induced neuroblastoma cells ↑ cell viability, ↓ ROS generation and CAT activity, ↑ SOD activity, and ↑ dopamine receptor D2 gene expression compared to the untreated groups (treated with 6-OHDA without TRF supplementation). The gene discussed is DRD2; the disease is neuroblastoma.