ArticleNeuro-oncology2009
AMPA receptors promote perivascular glioma invasion via beta1 integrin-dependent adhesion to the extracellular matrix.
Article in Neuro-oncology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers, 1 of them a synthesis that pooled it.
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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
82 citing papers in PubMed, 1 synthesis or guideline pooled it, 125 citations in OpenAlex.
- The role of glutamate receptors in the regulation of the tumor microenvironment.Frontiers in immunology · 2023Pooled it
- Talampanel with standard radiation and temozolomide in patients with newly diagnosed glioblastoma: a multicenter phase II trial.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2009Trial
- Synergistic antitumor effect of temozolomide and perampanel in pediatric glioma: a case report and in vitro validation using patient-derived glioma sphere cells.Acta neuropathologica communications · 2026Article
- Deciphering the STAT3-PXN positive feedback loop in GBM, IDH-wildtype: transcriptional regulation and inhibition of YB-1 ubiquitination.Cell death discovery · 2026Article
- Metabolic dependencies and neural progenitor dysregulation: driving forces in paediatric high-grade glioma development.Cancer metastasis reviews · 2026Review
- Glutamate Receptor Agonists as Triggers of Neurotoxicity: Decoding Pathways of Five Neurotoxins and Potential Therapeutic Targets.ACS omega · 2026Review
- Glutamate Drives Glioblastoma Invasion in Three-Dimensional Hyaluronic Acid Hydrogels.Tissue engineering. Part A · 2026Article
- 20-hydroxyecdysone promotes brain development via upregulating MMP2 expression during metamorphosis in Helicoverpa armigera.PLoS genetics · 2026Article
- Decoding autophagy in neuro-tumor crosstalk: from underlying mechanisms to translational opportunities.Theranostics · 2026Review
- Circulating levels of glutamate predict brain disease in patients with advanced lung and breast cancer: a prospective study.Journal of neuro-oncology · 2025Observational
- A Prognostic Neuromodulation-Related Gene Signature Identifies Immunomodulation and Tumour-Associated Hallmarks in Glioblastoma.Biomedicines · 2025Article
- Augmenting AMPA receptor signaling after spinal cord injury increases ependymal-derived neural stem/progenitor cell migration and promotes functional recovery.Nature neuroscience · 2025Article
- A novel cuproptosis-related genes nomogram on the prognosis and immune microenvironment of breast invasive carcinoma.Scientific reports · 2025Article
- Identification and verification of a polyamine metabolism-related gene signature for predicting prognosis and immune infiltration in osteosarcoma.Journal of orthopaedic surgery and research · 2025Article
- Cancer-nervous system crosstalk: from biological mechanism to therapeutic opportunities.Molecular cancer · 2025Review
- Neurotransmitter power plays: the synaptic communication nexus shaping brain cancer.Acta neuropathologica communications · 2025Review
- AMPA Receptor Modulation in the Treatment of High-Grade Glioma: Translating Good Science into Better Outcomes.Pharmaceuticals (Basel, Switzerland) · 2025Review
- The Role of the Gut Microbiota in Modulating Signaling Pathways and Oxidative Stress in Glioma Therapies.Cancers · 2025Review
- Disrupted glutamate homeostasis as a target for glioma therapy.Pharmacological reports : PR · 2024Review
- Endocannabinoid Receptor 2 Function is Associated with Tumor-Associated Macrophage Accumulation and Increases in T Cell Number to Initiate a Potent Antitumor Response in a Syngeneic Murine Model of Glioblastoma.Cannabis and cannabinoid research · 2024Article
22 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
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
High-grade gliomas release excitotoxic concentrations of glutamate, which has been shown to enhance tumor proliferation and migration. alpha-Amino-3-hydroxy-5-methylisoxazole-4-propionic acid (AMPA) glutamate receptors are abundantly expressed at the invading edge of glioblastoma specimens, suggesting they may play an important biologic role in tumor invasion. In this study, we examined potential mechanisms by which AMPA receptor (AMPAR) expression and stimulation promote glioma cell migration and invasion. Overexpression of GluR1, the most abundant AMPAR subunit in gliomas, positively correlated with glioma cell adhesion to type I and type IV collagen, which was decreased in cells with knockdown of GluR1 and with blocking antibodies to beta1 integrin. Furthermore, stimulation of the AMPAR led to detachment of cells from the extracellular matrix (ECM). Immunoprecipitation studies showed that GluR1 associated with the actin cytoskeleton-linked protein band 4.1B (brain type), which may serve as a link between GluR1 and integrins. Overexpression of GluR1 correlated with increased cell-surface expression of beta1 integrin, increased phosphorylation of focal adhesion kinase (FAK-Y397), and enhanced numbers of focal adhesion (FA) complexes. Cells overexpressing GluR1 had increased colocalization of actin and paxillin at FAs and, in several glioma cell lines, significantly increased invasion in an in vitro Matrigel transwell assay. Likewise, in an intracranial xenograft model, overexpression of GluR1 led to perivascular and subependymal glioma cell invasion similar to patterns of tumor dissemination described in human glioblastoma. Together, these results suggest that AMPARs may link signals from the ECM to sites of FA, where signal integration promotes tumor invasion.
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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.