TUBA1C and glioblastoma: In addition, the results of Cox regression analysis revealed that low expression of TUBA1C mRNA was a protective factor for the PFI of GBM, UCEC, SKCM, SARC, PAAD, MESO, LUAD, LIHC, LGG, KIRC, and KICH but was a risk factor for the PFI of COAD.