ArticleScientific reports2025
The RASAL2 variant promotes aberrant RAS signaling and resistance to anti-EGFR therapy in colorectal cancer.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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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.
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Who cites it
1 citing paper in PubMed.
- Investigating the effects of missense mutations on the dual Ras/Rap activation mechanism of SYNGAP1 using molecular modelling.Journal of structural biology: X · 2026Article
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7 authors.
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Abstract
Anti-EGFR monoclonal antibodies are essential for metastatic colorectal cancer (CRC) treatment, however, resistance remains problematic in KRAS/NRAS/BRAF wild-type patients. RAS protein activator-like 2 (RASAL2) regulates RAS signaling by catalyzing the conversion of RAS. This study investigates the pathogenicity of the germline RASAL2 c.2423 A > G variant, identified in a high-risk family, and its potential role in CRC progression and therapy resistance. Population analysis reveals its rarity in East Asians (0.01%) but an increased prevalence in Taiwanese CRC patients (1.63%). Functional studies demonstrate that RASAL2 c.2423 A > G enhances RAS signaling, causing sustained ERK phosphorylation and increased CRC cell proliferation. Additionally, RASAL2-mutant cells require higher doses of cetuximab for ERK suppression and growth inhibition, indicating resistance to anti-EGFR therapy via abnormal RAS activation. According to the American College of Medical Genetics and Genomics criteria, the variant is likely pathogenic. Our study highlights RASAL2 c.2423 A > G as a potential biomarker for CRC risk and therapy response.
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