RNF112 and glioblastoma: A GBM cell line (U87) was successfully tranduced with a custom plasmid to express dCas9-KRAB (U87-dCas9-KRAB) fused to blue fluorescent protein (U87-dCas9-KRAB-BFP), and sorted by FACS to a pure population of U87-dCas9-KRAB.