AGO2 and glioblastoma: Moreover, RNA-binding protein immunoprecipitation (RIP) assay showed that in control GBM cells, the amount of lncSBF2-AS1 and miR-151a-3p immunoprecipitated with Ago2 was higher than respective IgG group, and knockdown of miR-151a-3p restrained the enrichment of SBF2-AS1 and miR-151a-3p in Ago2 precipitates (Fig. 5c and d).