ArticleCancers2022
Definition of the Prognostic Role of MGMT Promoter Methylation Value by Pyrosequencing in Newly Diagnosed IDH Wild-Type Glioblastoma Patients Treated with Radiochemotherapy: A Large Multicenter Study.
Article in Cancers, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.
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Who cites it
15 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.
- A systematic review of high impact CpG sites and regions for MGMT methylation in glioblastoma [A systematic review of MGMT methylation in GBM].BMC neurology · 2024Pooled it
- Clinical Impact of MGMT Promoter Methylation in IDH-Mutant Gliomas: Influence of Threshold Selection and Clinical Confounding.Annals of clinical and translational neurology · 2026Article
- Glioblastoma MRI Dataset with Standardized Preprocessing, Expert-Validated Segmentation, and MGMT Profiling.Scientific data · 2026Article
- Extent of resection and survival in IDH-wildtype glioblastoma: interaction with MGMT status and chemoradiation.Journal of neuro-oncology · 2026Article
- Independent associations of MGMT promoter methylation and TERT promoter mutation with overall survival in glioblastoma: a single-center retrospective cohort study.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026Article
- Quantitative DNA melting analysis with hybridization probes (qDMA-HP) as a novel approach to assess MGMT promoter methylation in malignant glioma.Journal of neuro-oncology · 2026Article
- Tumor antigen only (TAO) vaccine platforms for glioblastoma therapeutics: a systematic review of evidence from clinical trials.EClinicalMedicine · 2026Review
- Magnetic susceptibility properties of tumor-associated cells imaged by MRI reveal glioblastoma infiltration in the edema region.Communications medicine · 2025Article
- Virtual Biopsy for the Prediction of MGMT Promoter Methylation in Gliomas: A Comprehensive Review of Radiomics and Deep Learning Approaches Applied to MRI.Diagnostics (Basel, Switzerland) · 2025Review
- Evaluation of the clinical use of MGMT methylation in extracellular vesicle-based liquid biopsy as a tool for glioblastoma patient management.Scientific reports · 2024Article
- Glioblastoma and Internal Carotid Artery Calcium Score: A Possible Novel Prognostic Partnership?Journal of clinical medicine · 2024Article
- Pyrosequencing Analysis of O-6-Methylguanine-DNA Methyltransferase Methylation at Different Cut-Offs of Positivity Associated with Treatment Response and Disease-Specific Survival in Isocitrate Dehydrogenase-Wildtype Grade 4 Glioblastoma.International journal of molecular sciences · 2024Article
- Relationship between glioblastoma location and OBrain communications · 2024Article
- Endosome associated trafficking regulator 1 promotes tumor growth and invasion of glioblastoma multiforme via inhibiting TNF signaling pathway.Journal of neuro-oncology · 2024Article
- MGMT Promoter Methylation: Prognostication beyond Treatment Response.Journal of personalized medicine · 2023Article
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Authors and funding
21 authors at 12 institutions in 2 countries.
Funding
Abstract
Background. O6-methylguanine (O6-MeG)-DNA methyltransferase (MGMT) methylation status is a predictive factor for alkylating treatment efficacy in glioblastoma patients, but its prognostic role is still unclear. We performed a large, multicenter study to evaluate the association between MGMT methylation value and survival. Methods. We evaluated glioblastoma patients with an assessment of MGMT methylation status by pyrosequencing from nine Italian centers. The inclusion criteria were histological diagnosis of IDH wild-type glioblastoma, Eastern Cooperative Oncology Group Performance Status (ECOG-PS) ≤2, and radio-chemotherapy treatment with temozolomide. The relationship between OS and MGMT was investigated with a time-dependent Receiver Operating Characteristics (ROC) curve and Cox regression models. Results. In total, 591 newly diagnosed glioblastoma patients were analyzed. The median OS was 16.2 months. The ROC analysis suggested a cut-off of 15% for MGMT methylation. The 2-year Overall Survival (OS) was 18.3% and 51.8% for MGMT methylation <15% and ≥15% (p < 0.0001). In the multivariable analysis, MGMT methylation <15% was associated with impaired survival (p < 0.00001). However, we also found a non-linear association between MGMT methylation and OS (p = 0.002): median OS was 14.8 months for MGMT in 0−4%, 18.9 months for MGMT in 4−40%, and 29.9 months for MGMT in 40−100%. Conclusions. Our findings suggested a non-linear relationship between OS and MGMT promoter methylation, which implies a varying magnitude of prognostic effect across values of MGMT promoter methylation by pyrosequencing in newly diagnosed IDH wild-type glioblastoma patients treated with chemoradiotherapy.
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