ArticleThe Kaohsiung journal of medical sciences2024
The role of KDM4A-mediated histone methylation on temozolomide resistance in glioma cells through the HUWE1/ROCK2 axis.
Article in The Kaohsiung journal of medical sciences, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 4 citations in OpenAlex.
- METTL3 Increases Temozolomide Resistance in MGMT-Negative Glioblastoma by Enhancing CBX5 mRNA Stability in an mCNS neuroscience & therapeutics · 2026Article
- Natural Plant Bioactives as Regulators of Histone Modifications: Bridging Epigenetics and Anticancer Therapy.Phytotherapy research : PTR · 2026Review
- The JMJD family histone demethylases: structure, mechanism of action, diseases and therapeutic targets.Molecular biomedicine · 2026Review
- Review
- Targeting N-Methyl-lysine Histone Demethylase KDM4 in Cancer: Natural Products Inhibitors as a Driving Force for Epigenetic Drug Discovery.ChemMedChem · 2025Review
- The epigenetic mechanisms involved in the treatment resistance of glioblastoma.Cancer drug resistance (Alhambra, Calif.) · 2025Review
- The role of KDM4A-mediated histone methylation on temozolomide resistance in glioma cells through the HUWE1/ROCK2 axis.The Kaohsiung journal of medical sciences · 2024Article
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
Abstract
Temozolomide (TMZ) resistance presents a significant challenge in the treatment of gliomas. Although lysine demethylase 4A (KDM4A) has been implicated in various cancer-related processes, its role in TMZ resistance remains unclear. This study aims to elucidate the contribution of KDM4A to TMZ resistance in glioma cells and its potential implications for glioma prognosis. We assessed the expression of KDM4A in glioma cells (T98G and U251MG) using qRT-PCR and Western blot assays. To explore the role of KDM4A in TMZ resistance, we transfected siRNA targeting KDM4A into drug-resistant glioma cells. Cell viability was assessed using the CCK-8 assay and the TMZ IC50 value was determined. ChIP assays were conducted to investigate KDM4A, H3K9me3, and H3K36me3 enrichment on the promoters of ROCK2 and HUWE1. Co-immunoprecipitation confirmed the interaction between HUWE1 and ROCK2, and we examined the levels of ROCK2 ubiquitination following MG132 treatment. Notably, T98G cells exhibited greater resistance to TMZ than U251MG cells, and KDM4A displayed high expression in T98G cells. Inhibiting KDM4A resulted in decreased cell viability and a reduction in the TMZ IC50 value. Mechanistically, KDM4A promoted ROCK2 transcription by modulating H3K9me3 levels. Moreover, disruption of the interaction between HUWE1 and ROCK2 led to reduced ROCK2 ubiquitination. Inhibition of HUWE1 or overexpression of ROCK2 counteracted the sensitization effect of si-KDM4A on TMZ responsiveness in T98G cells. Our findings highlight KDM4A's role in enhancing TMZ resistance in glioma cells by modulating ROCK2 and HUWE1 transcription and expression through H3K9me3 and H3K36me3 removal.
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