IDH mutations, particularly in IDH1 and IDH2, are pivotal in the development of various gliomas, leading to the accumulation of the oncometabolite d-2-hydroxyglutarate (d-2HG). Notarangelo et al. explored the impact of d-2HG on T cell metabolism, revealing that this metabolite impairs CD8+ T cell function, suggesting a mechanism by which tumors evade immune surveillance (ref: Notarangelo doi.org/10.1126/science.abj5104/). This study highlights the dual role of d-2HG, emphasizing its effects not only on tumor cells but also on the immune microenvironment. In a systematic review by Tesileanu et al., the authors compiled molecular markers relevant to patient outcomes in IDH-mutant astrocytomas, indicating a shift towards integrating molecular diagnostics with histological assessments for better prognostication (ref: Tesileanu doi.org/10.1016/j.ejca.2022.08.016/). Qiu et al. utilized quantitative MRI to assess oxygen metabolism in gliomas, finding significant differences in metabolic profiles between IDH-mutant and wild-type gliomas, which could aid in predicting tumor behavior and guiding treatment strategies (ref: Qiu doi.org/10.1016/j.ejrad.2022.110502/). Deacu et al. further characterized the aggressiveness of Grade 4 gliomas, identifying key prognostic factors that contribute to their high mortality rates, thus reinforcing the clinical significance of understanding IDH mutations in glioma biology (ref: Deacu doi.org/10.3390/clinpract12050073/).