MXRA5 and glioblastoma: To further validate our transcriptomic findings, we examined immunohistochemical (IHC) staining data for TNFSF14 and MXRA5 in GBM and normal brain tissue specimens available from the Human Protein Atlas (https://www.proteinatlas.org (accessed on 5 March 2025)) (Figure 3i–l).