CSF3 and glioblastoma: However, we found that the ratio of CD56bri to CD56dim subsets was significantly increased in GBM and GPB compared to that in NGBM and NGPB, respectively, which differed from this previous report.8 Miller JS et al demonstrated that G‐CSF in vivo treatment had no effect on the proportion of CD56bri NK cells.8 The reason for these disparate results could be because of the following two factors.