RB1 and retinoblastoma: In contrast, LINC00202 overexpression in Weri-Rb1 cells (Fig. S1a), which expressed the lowest LINC00202 level among all examined RB cell lines (Fig. S1b), significantly promoted cell viability (Fig. S1b) and increased the number of colonies over 3 folds in the colony formation assay (Fig. S1c).