ArticleCellular and molecular life sciences : CMLS2023
TRPM7 transactivates the FOSL1 gene through STAT3 and enhances glioma stemness.
Article in Cellular and molecular life sciences : CMLS, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 19 citations in OpenAlex.
- Multi-omics analysis identifieTranslational cancer research · 2026Article
- Role of the STAT3 Signaling Pathway in Cell Proliferation and Inflammation in Psoriasis and Approaches for Targeted Therapies: A Review.Medical science monitor : international medical journal of experimental and clinical research · 2026Review
- Targeting the FOSL1/IKKα positive feedback loop attenuates glioblastoma malignancyTheranostics · 2026Article
- Microglial Inflammatory Response in the Glioblastoma Microenvironment in Preclinical Models.Molecular neurobiology · 2025Article
- Recent Advances in the Application of Cucurbitacin B as an Anticancer Agent.International journal of molecular sciences · 2025Review
- The Pivotal Role of NF-κB in Glioblastoma: Mechanisms of Activation and Therapeutic Implications.International journal of molecular sciences · 2025Review
- TRIM21 functions as an oncogene in glioblastoma by transactivating FOSL1 and promoting the ubiquitination of p27.Cell communication and signaling : CCS · 2025Article
- STAT3 Signaling Pathway in Health and Disease.MedComm · 2025Review
- FOSL1 drives the malignant progression of pancreatic cancer cells by regulating cell stemness, metastasis and multidrug efflux system.Journal of translational medicine · 2025Article
- RNA Sequencing Identifies Novel Signaling Pathways and Potential Drug Target Genes Induced by FOSL1 in Glioma Progression and Stemness.Biologics : targets & therapy · 2025Article
- FOSL1 promotes stem cell‑like characteristics and anoikis resistance to facilitate tumorigenesis and metastasis in osteosarcoma by targeting SOX2.International journal of molecular medicine · 2024Article
- Interaction of NF-κB and FOSL1 drives glioma stemness.Cellular and molecular life sciences : CMLS · 2024Article
- FOSL1's Oncogene Roles in Glioma/Glioma Stem Cells and Tumorigenesis: A Comprehensive Review.International journal of molecular sciences · 2024Review
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Authors and funding
8 authors at 4 institutions in 1 country.
Funding
Abstract
introductionWe previously reported that TRPM7 regulates glioma cells' stemness through STAT3. In addition, we demonstrated that FOSL1 is a response gene for TRPM7, and the FOSL1 gene serves as an oncogene to promote glioma proliferation and invasion.
methodsIn the present study, we determined the effects of FOSL1 on glioma stem cell (GSC) markers CD133 and ALDH1 by flow cytometry, and the maintenance of stem cell activity by extreme limiting dilution assays (ELDA). To further gain insight into the mechanism by which TRPM7 activates transcription of the FOSL1 gene to contribute to glioma stemness, we constructed a FOSL1 promoter and its GAS mutants followed by luciferase reporter assays and ChIP-qPCR in a glioma cell line and glioma patient-derived xenoline. We further examined GSC markers ALDH1 and TRPM7 as well as FOSL1 by immunohistochemistry staining (IHC) in brain tissue microarray (TMA) of glioma patients.
resultsWe revealed that FOSL1 knockdown reduces the expression of GSC markers CD133 and ALDH1, and FOSL1 is required to maintain stem cell activity in glioma cells. The experiments also showed that mutations of - 328 to - 336 and - 378 to - 386 GAS elements markedly reduced FOSL1 promoter activity. Constitutively active STAT3 increased while dominant-negative STAT3 decreased FOSL1 promoter activity. Furthermore, overexpression of TRPM7 enhanced while silencing of TRPM7 reduced FOSL1 promoter activity. ChIP-qPCR assays revealed that STAT3, present in nuclear lysates of glioma cells stimulated by constitutively activated STAT3, can bind to two GAS elements, respectively. We demonstrated that deacetylation of FOSL1 at the Lys-116 residue located within its DNA binding domain led to an increase in FOSL1 transcriptional activity. We found that the expression of TRPM7, ALDH1, and FOSL1 protein is associated with grades of malignant glioma, and TRPM7 protein expression correlates to the expression of ALDH1 and FOSL1 in glioma patients.
conclusionsThese combined results demonstrated that TRPM7 induced FOSL1 transcriptional activation, which is mediated by the action of STAT3, a mechanism shown to be important in glioma stemness. These results indicated that FOSL1, similar to GSC markers ALDH1 and TRPM7, is a diagnostic marker and potential drug target for glioma patients.
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