ArticleCancer genetics2025
Glioma grade and mortality in relation to sequence variation in the mitochondrial genome.
Article in Cancer genetics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Mitochondrial Metabolic Reprogramming in Glioma: Mechanisms of Tumorigenesis and Implications for Clinical Therapy.CNS neuroscience & therapeutics · 2026Review
- A Coordinated Mitochondrial Genome Expression Program Marks a Differentiated Neural-Lineage and Synaptic Transcriptional State in Lower-Grade Glioma.International journal of molecular sciences · 2026Article
- Research on the interactive mechanisms between mitochondrial variations and immune responses in gliomas based on integrated visualization analysis.Discover oncology · 2025Review
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Authors and funding
8 authors.
Funding
Abstract
purposeGlioma arises from glial cells and comprises ∼80 % of malignant adult brain tumors. The polymorphic mitochondrial genome plays a key role in maintaining redox homeostasis and generation of reactive oxygen species (ROS). ROS have a well-established role in glial tumors. We investigated associations between germline mtDNA variants and haplogroups with glioma grade and glioblastoma (GBM) survival.
methodsWe conducted germline mtDNA sequencing for 388 patients (300 Caucasians, 88 African Americans [AA]) with incident glioma (105 non-GBM, 283 GBM). Across all patients we identified 1431 homoplasmic mtDNA variants, including 692 variants observed only in Caucasians, 474 only in AAs, and 265 in both groups. We estimated Odds Ratios (OR) and 95 % Confidence Intervals (CI) for mtDNA common variants, haplogroups, and gene variant burden in relation to glioma grade and tertiles of survival in GBM patients. Bonferroni and Benjamini-Hochberg correction were applied for multiple comparisons.
resultsNo mtDNA haplogroup was associated with glioma grade or patient survival in GBM. Common variants m.3010G>A, m.195T>C, and m.16189T>C were linked to lower-grade glioma risk. For GBM survival, m.1719G>A, m.14766T>C, m.16129G>A, and m.204T>C were associated with a poorer prognosis while variant m.73A>G was associated with an improved prognosis. A higher variant burden in MT-ND1 and MT-ND5 was associated with a better prognosis. No results remained statistically significant after correction.
conclusionThis is the first comprehensive study of germline mtDNA sequence variation in relation to glioma grade at diagnosis and gliobastoma patient survival. Results warrant further study in larger populations and investigation of biologic mechanisms linking mtDNA polymorphism to these endpoints.
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