ArticleMolecular oncology2026
Integrated genomic and proteomic profiling reveals insights into chemoradiation resistance in cervical cancer.
Article in Molecular oncology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Cervical cancer is highly prevalent in India, with most cases being diagnosed at advanced stages. Despite the standard concurrent chemoradiotherapy (CCRT), 30-40% of patients' experience treatment failure, underscoring the need for improved therapeutic strategies. Understanding resistance mechanisms and identifying predictive biomarkers are crucial to improve treatment efficacy and enable personalized medicine. We conducted a comprehensive genomic and proteomic analysis to identify molecular signatures associated with CCRT. We identified recurrent mutations in phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform (PIK3CA) and histone-lysine N-methyltransferase 2D (KMT2D), with mutation signature analysis revealing a prevalent DNA dC- > dU-editing enzyme, APOBEC mutagenesis signature. Distinct genomic alterations, including epidermal growth factor receptor (EGFR) amplification and serine/threonine kinase 11 (STK11) deletion, were exclusively observed in the chemoradiation-resistant cohort. Proteomic analysis identified 73 significantly dysregulated proteins, with syntaxin-3 (STX3), SERPINB7, lipopolysaccharide-binding protein (LBP), EMILIN2, and ribosyldihydronicotinamide dehydrogenase (quinone) (NQO2) being the top five upregulated proteins. Integrative pathway analysis highlighted an active DNA repair pathway in the resistant cohort. This study presents the first proteogenomic profiling of cervical cancer in the Indian population, linking molecular alterations to CCRT response. STK11 and STX3 emerged as predictive biomarkers for poor response, whereas EGFR presents as a promising therapeutic target in the resistant group.
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