ArticleNeuro-oncology2013
Overexpression of isocitrate dehydrogenase mutant proteins renders glioma cells more sensitive to radiation.
Article in Neuro-oncology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 99 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
99 citing papers in PubMed, 1 synthesis or guideline pooled it, 152 citations in OpenAlex.
- The IDH paradox: Meta-analysis of alkylating chemotherapy in IDH-wild type and -mutant lower grade gliomas.Neuro-oncology · 2024Pooled it
- An Analysis for IDH-Mutant Grade 4 Astrocytoma Based on WHO CNS 5: Implication of Clinical Practice.Annals of clinical and translational neurology · 2025Article
- IDH1 Mutation Impacts DNA Repair Through ALKBH2 Rendering Glioblastoma Cells Sensitive to Artesunate.Biomedicines · 2025Article
- R-2-hydroxyglutarate-mediated inhibition of KDM4A compromises telomere integrity.Nucleic acids research · 2025Article
- CALCOCO2 silencing represents a potential molecular therapeutic target for glioma.Archives of medical science : AMS · 2025Article
- IDH1 R132H and TP53 R248Q Mutations Modulate Glioma Cell Migration and Adhesion on Different ECM Components.International journal of molecular sciences · 2024Article
- Genome-wide DNA methylation analysis identifies potent CpG signature for temzolomide response in non-G-CIMP glioblastomas with unmethylated MGMT promoter: MGMT-dependent roles of GPR81.CNS neuroscience & therapeutics · 2024Article
- Temozolomide, Procarbazine and Nitrosoureas in the Therapy of Malignant Gliomas: Update of Mechanisms, Drug Resistance and Therapeutic Implications.Journal of clinical medicine · 2023Review
- Expression of TMEM59L associated with radiosensitive in glioblastoma.Journal of radiation research · 2023Article
- Mitochondrial metabolism: a predictive biomarker of radiotherapy efficacy and toxicity.Journal of cancer research and clinical oncology · 2023Review
- Review
- Glioma immunotherapy enhancement and CD8-specific sialic acid cleavage by isocitrate dehydrogenase (IDH)-1.Oncogene · 2023Article
- Proton radiotherapy in the treatment of IDH-mutant diffuse gliomas: an early experience from shanghai proton and heavy ion center.Journal of neuro-oncology · 2023Article
- The impact of RNA binding proteins and the associated long non-coding RNAs in the TCA cycle on cancer pathogenesis.RNA biology · 2023Review
- Article
- Multiparametric MR radiomics in brain glioma: models comparation to predict biomarker status.BMC medical imaging · 2022Article
- IDH2: A novel biomarker for environmental exposure in blood circulatory system disorders.Oncology letters · 2022Review
- A nomogram strategy for identifying the subclassification of IDH mutation and ATRX expression loss in lower-grade gliomas.European radiology · 2022Article
- Relapsing High-Grade Glioma from Peritumoral Zone: Critical Review of Radiotherapy Treatment Options.Brain sciences · 2022Review
- Overcoming Radiation Resistance in Gliomas by Targeting Metabolism and DNA Repair Pathways.International journal of molecular sciences · 2022Review
39 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
15 authors at 1 institution in 1 country.
Funding
Abstract
Mutations in isocitrate dehydrogenase 1 (IDH1) or 2 (IDH2) are found in a subset of gliomas. Among the many phenotypic differences between mutant and wild-type IDH1/2 gliomas, the most salient is that IDH1/2 mutant glioma patients demonstrate markedly improved survival compared with IDH1/2 wild-type glioma patients. To address the mechanism underlying the superior clinical outcome of IDH1/2 mutant glioma patients, we investigated whether overexpression of the IDH1(R132H) protein could affect response to therapy in the context of an isogenic glioma cell background. Stable clonal U87MG and U373MG cell lines overexpressing IDH1(WT) and IDH1(R132H) were generated, as well as U87MG cell lines overexpressing IDH2(WT) and IDH2(R172K). In vitro experiments were conducted to characterize baseline growth and migration and response to radiation and temozolomide. In addition, reactive oxygen species (ROS) levels were measured under various conditions. U87MG-IDH1(R132H) cells, U373MG-IDH1(R132H) cells, and U87MG-IDH2(R172K) cells demonstrated increased sensitivity to radiation but not to temozolomide. Radiosensitization of U87MG-IDH1(R132H) cells was accompanied by increased apoptosis and accentuated ROS generation, and this effect was abrogated by the presence of the ROS scavenger N-acetyl-cysteine. Interestingly, U87MG-IDH1(R132H) cells also displayed decreased growth at higher cell density and in soft agar, as well as decreased migration. Overexpression of IDH1(R132H) and IDH2(R172K) mutant protein in glioblastoma cells resulted in increased radiation sensitivity and altered ROS metabolism and suppression of growth and migration in vitro. These findings provide insight into possible mechanisms contributing to the improved outcomes observed in patients with IDH1/2 mutant gliomas.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.