NTRK3 and glioblastoma: Status of endogenous expression level of TrkC‐miR2 was identified through RT‐qPCR in astrocytoma (1321N1), glioblastoma (A172 and U87MG), medulloblastoma (Daoy) and neuroblastoma (SK‐N‐MC) human brain tumour cell lines (Figure 3A).