TIA1 and glioblastoma: In the present study, we show that the cytoplasmic QKI isoforms, QKI-6 and QKI-7, but not nuclear isoform (QKI-5), localize with Ago2, PABP1, and TIA1 within stress granules in the U343 glioblastoma cell line and in primary rat oligodendrocytes.