ROR1 and central nervous system cancer: It is worth mentioning that GDE-derived miR-376c-3p, miR-148a, miR-221, miR-301a, lncRNA LINC00470, and lncRNA ROR1-AS1, circMMP1 are promoting factors while miR-454-3p is the suppressing factor in glioma tumorigenesis, growth, and metastasis.