ArticleJournal of biomedical science2021
Glutaminase isoforms expression switches microRNA levels and oxidative status in glioblastoma cells.
Article in Journal of biomedical science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 25 citations in OpenAlex.
- 70 Years of DON and Beyond: Glutaminase Inhibition as a Synergistic Strategy in Cancer Combination Therapy.Pharmaceutics · 2026Review
- SLC6A14-mediated glutamine promotes SYTL4-CXCL8 axis activation to drive gemcitabine resistance and immune evasion in pancreatic cancer.Experimental & molecular medicine · 2025Article
- MiR-195-5p regulates oxidative stress and aerobic metabolism by directly downregulating GLS2 in high glucose-induced human lens epithelial cells.Archives of endocrinology and metabolism · 2025Article
- Lactate-coated polyurea-siRNA dendriplex: a gene therapy-directed and metabolism-based strategy to impair glioblastoma (GBM).Cancer gene therapy · 2025Article
- Glutaminase-2 Expression Induces Metabolic Changes and Regulates Pyruvate Dehydrogenase Activity in Glioblastoma Cells.International journal of molecular sciences · 2025Article
- Identification of Cuproptosis-Related Genes and Their Potential Role in COPD Pathogenesis: A Bioinformatics Analysis.International journal of chronic obstructive pulmonary disease · 2025Article
- Towards Effective Treatment of Glioblastoma: The Role of Combination Therapies and the Potential of Phytotherapy and Micotherapy.Current issues in molecular biology · 2024Review
- Alleviating D-Galactose-Induced Aging in Mice by Modulating Gut-Liver Axis UsingFoods (Basel, Switzerland) · 2024Article
- GLS and GLS2 Glutaminase Isoenzymes in the Antioxidant System of Cancer Cells.Antioxidants (Basel, Switzerland) · 2024Review
- Article
- Two Faces of Glutaminase GLS2 in Carcinogenesis.Cancers · 2023Review
- Alone and together: current approaches to targeting glutaminase enzymes as part of anti-cancer therapies.Future drug discovery · 2023Review
- Epigenetics and Metabolism Reprogramming Interplay into Glioblastoma: Novel Insights on Immunosuppressive Mechanisms.Antioxidants (Basel, Switzerland) · 2023Review
- Metabolic Adjustments following Glutaminase Inhibition by CB-839 in Glioblastoma Cell Lines.Cancers · 2023Article
- Effects of Antioxidant Gene Overexpression on Stress Resistance and Malignization In Vitro and In Vivo: A Review.Antioxidants (Basel, Switzerland) · 2022Review
- Integrated Bioinformatics Analysis Reveals Novel miRNA as Biomarkers Associated with Preeclampsia.Genes · 2022Article
- Identification of GLS as a cuproptosis-related diagnosis gene in acute myocardial infarction.Frontiers in cardiovascular medicine · 2022Article
- Metabolic Rewiring in Glioblastoma Cancer:Frontiers in oncology · 2022Review
Corrections and comments
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Authors and funding
21 authors at 5 institutions in 3 countries.
Funding
Abstract
backgroundGlutaminase isoenzymes GLS and GLS2 play apparently opposing roles in cancer: GLS acts as an oncoprotein, while GLS2 (GAB isoform) has context specific tumour suppressive activity. Some microRNAs (miRNAs) have been implicated in progression of tumours, including gliomas. The aim was to investigate the effect of GLS and GAB expression on both miRNAs and oxidative status in glioblastoma cells.
methodsMicroarray profiling of miRNA was performed in GLS-silenced LN229 and GAB-transfected T98G human glioblastoma cells and their wild-type counterparts. Results were validated by real-time quantitative RT-PCR. Oxidative status and antioxidant enzymes were determined by spectrophotometric or fluorescence assays in GLS-silenced LN229 and T98G, and GAB-transfected LN229 and T98G.
resultsMiRNA-146a-5p, miRNA-140-3p, miRNA-21-5p, miRNA-1260a, and miRNA-92a-3p were downregulated, and miRNA-1246 was upregulated when GLS was knocked down. MiRNA-140-3p, miRNA-1246, miRNA-1260a, miRNA-21-5p, and miRNA-146a-5p were upregulated when GAB was overexpressed. Oxidative status (lipid peroxidation, protein carbonylation, total antioxidant capacity, and glutathione levels), as well as antioxidant enzymes (catalase, superoxide dismutase, and glutathione reductase) of silenced GLS glioblastoma cells and overexpressed GAB glioblastoma cells significantly changed versus their respective control glioblastoma cells. MiRNA-1246, miRNA-1260a, miRNA-146a-5p, and miRNA-21-5p have been characterized as strong biomarkers of glioblastoma proliferation linked to both GLS silencing and GAB overexpression. Total glutathione is a reliable biomarker of glioblastoma oxidative status steadily associated to both GLS silencing and GAB overexpression.
conclusionsGlutaminase isoenzymes are related to the expression of some miRNAs and may contribute to either tumour progression or suppression through certain miRNA-mediated pathways, proving to be a key tool to switch cancer proliferation and redox status leading to a less malignant phenotype. Accordingly, GLS and GAB expression are especially involved in glutathione-dependent antioxidant defence.
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