CD44 and glioblastoma: Many genes of the mGC2NES group showed a clear mesenchymal character (e.g., Cd44, Bmp7, Tgfb2) which is in line with the previous finding that mGC2NES cells were most closely related to the MS GBM subtype, while both the mGC1GFAP and mGC3CNP cells were most similar to PN GBM22.