The immunotherapy landscape for glioblastoma (GBM) is evolving, with recent studies highlighting the challenges posed by the immunosuppressive tumor microenvironment (TME). One study introduced survivin peptide-CpG oligodeoxynucleotide nanovaccines (SPOD-NV), which were administered intranasally and intravenously, demonstrating a robust immune response against murine GBM (ref: Shi doi.org/10.1002/adma.202420630/). Another significant contribution is the establishment of Glioportal, a comprehensive biobank that integrates multi-omics data to elucidate the molecular heterogeneity and cellular plasticity of GBM, providing a resource for precision therapies (ref: Pang doi.org/10.1093/neuonc/). Furthermore, research has identified cancer-associated fibroblasts (CAFs) as key players in modulating the TME, particularly through the expression of LRRC15, which limits the efficacy of PD-1 immunotherapy (ref: Luo doi.org/10.1093/neuonc/). This highlights the need for strategies that can reprogram the TME to enhance immunotherapeutic outcomes. In addition to CAFs, the role of specific genetic alterations in immune evasion has been explored. For instance, the EGFRvIII mutation in GBM cells has been shown to drive macrophage polarization towards an immunosuppressive phenotype, further complicating therapeutic interventions (ref: Yuan doi.org/10.1038/s41419-025-07771-1/). The integration of spatial transcriptomics and single-cell RNA sequencing has provided insights into the spatial organization of tumor heterogeneity, revealing the presence of extrachromosomal DNA and loss of heterozygosity in gliomas (ref: Webb doi.org/10.1038/s41467-025-59805-z/). Collectively, these studies underscore the complexity of the immune landscape in GBM and the necessity for innovative approaches to overcome the barriers posed by the TME.