ArticlePLoS biology2025
Methylation of RBM39 by PRMT6 enhances resistance to Indisulam in non-small cell lung cancer by promoting alternative splicing of proto-oncogenes.
Article in PLoS biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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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
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Who cites it
3 citing papers in PubMed.
- Protein arginine methylation and ubiquitination: A prominent crosstalk and its functions in cancer.Genes & diseases · 2026Review
- RNA-binding motif proteins as context-dependent regulators of tumor-immune crosstalk, genome stability, and therapeutic vulnerabilities in cancer.Frontiers in immunology · 2026Review
- Shaping Spliceosome Dynamics Through Protein Arginine Methylation.Wiley interdisciplinary reviews. RNAReview
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Authors and funding
9 authors.
Funding
Abstract
Indisulam, a sulfonamide-based compound, is employed as a second-line therapy for NSCLC due to its anti-tumor activity. However, its clinical efficacy is hindered by acquired resistance, the molecular basis of which remains poorly understood. Here, we demonstrate that hypermethylation of RNA-binding protein 39 (RBM39), a specific target of Indisulam, is closely associated with Indisulam resistance. PRMT6 methylates RBM39 at R92. This methylation inhibits Indisulam-induced ubiquitination and proteasomal degradation of RBM39, increases RBM39 protein levels, promotes alternative splicing and expression of proto-oncogenes, and ultimately leads to malignant proliferation and metastasis of NSCLC cells and tumor growth in xenograft mouse models. Inhibiting PRMT6 with MS023 or mutating the RBM39 methylation site enhances Indisulam sensitivity in NSCLC and significantly improves its anti-tumor efficacy. Our findings identify methylated RBM39 as a key biomarker of Indisulam resistance and suggest a potential therapeutic strategy for NSCLC.
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Registered trials
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