ArticleJournal of experimental & clinical cancer research : CR2025
RBM10 deficiency promotes brain metastasis by modulating sphingolipid metabolism in a BBB model of EGFR mutant lung adenocarcinoma.
Article in Journal of experimental & clinical cancer research : CR, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Lung Cancer Brain Metastasis: Brain Microenvironmental Adaptation, Therapeutic Resistance and Translational Strategies.Cancer science · 2026Review
- Article
- Diversity and function of tumor-associated macrophages in brain metastases: mechanisms and therapeutic prospects.Frontiers in immunology · 2026Review
- RNA-binding motif proteins as context-dependent regulators of tumor-immune crosstalk, genome stability, and therapeutic vulnerabilities in cancer.Frontiers in immunology · 2026Review
- Serum sphingosine-1-phosphate levels are associated with brain metastasis inFuture oncology (London, England) · 2025Article
- Cancer-Associated Fibroblasts: Heterogeneity, Cancer Pathogenesis, and Therapeutic Targets.MedComm · 2025Review
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Authors and funding
14 authors.
Funding
Abstract
backgroundBrain metastasis significantly contributes to the failure of targeted therapy in patients with epidermal growth factor receptor (EGFR)-mutated lung adenocarcinoma (LUAD). Reduced expression of RNA-binding motif protein 10 (RBM10) is associated with brain metastasis in these patients. However, the mechanism by which RBM10 affects brain metastasis in EGFR-mutated LUAD remains unclear.
methodsAn in vitro blood-brain barrier (BBB) model and brain metastasis-prone cell lines (BrM3) were established to confirm the brain metastatic potential of tumor cells following RBM10 knockdown. The roles of RBM10 and galactosylceramidase (GALC) in LUAD brain metastases were analyzed using cellular phenotypic assays and molecular biology techniques, including the combined analysis of Nanopore sequencing and CLIP-seq, minigene assays, and others.
resultsThis study demonstrates that RBM10 plays a vital role in inhibiting brain metastasis from EGFR-mutated LUAD by modulating sphingolipid metabolism. When RBM10 expression is low, GALC enters the nucleus to function. RBM10 deficiency inhibits exon skipping during GALC splicing, leading to upregulated GALC expression and increased sphingosine 1-phosphate (S1P) synthesis. S1P enhances BBB permeability, thereby promoting brain metastasis. Additionally, animal experiments show that the targeted agents Fingolimod (an S1P inhibitor) and RU-SKI-43 (a potential drug for RBM10 mutation) suppress the growth of brain metastasis.
conclusionThis study offers insights into the potential mechanisms of brain metastasis in LUAD and suggests a possible therapeutic target for further investigation.
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