Asian Pacific journal of cancer prevention : APJCP · 2025
Unraveling Key Regulatory Pathways in Non-HCV-Induced Hepatocellular Carcinoma: Insights from Exclusively Mutated Genes and Prognostic Biomarkers.
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Khalifa Mohamed Kamal, Hmed Ahmed A, Elfeky Khaled S, Bakry Sayed, Elhamshary Manal Osama, Sofy Ahmed R
Аннотация
BACKGROUND: The molecular pathogenesis of hepatocellular carcinoma (HCC) exhibits striking etiological heterogeneity, with non-HCV-associated cases representing an increasingly prominent clinical challenge in regions like Egypt, where environmental carcinogens significantly contribute to the disease burden.
METHODS: Through integrated analysis of genomic data Egyptian cohort comprising 48 HCC cases (23 non-HCV, 25 HCV-positive) was examined and validated against TCGA/ICGC datasets using cBioPortal and Cytoscape.
RESULTS: This study identifies a distinct oncogenic program in non-viral HCC characterized by recurrent alterations in receptor tyrosine kinases (RTKs) FGFR1, MET, ERBB2 and FLT3. These mutations were found to be 4.3-fold more prevalent in non-HCV HCC compared to viral counterparts (26.1% vs. 6.0%, p=0.008), demonstrating strong etiological specificity. Functional characterization revealed these alterations converge on MAPK and PI3K-AKT-mTOR signaling cascades through shared adaptor proteins, creating an interconnected signaling network that drives tumor progression.
CONCLUSION: Clinically, FGFR1/MET co-alterations predicted significantly worse outcomes (HR=2.3 for recurrence, 95% CI 1.1-4.8), while maintaining 92% specificity for non-viral HCC diagnosis. These findings establish the FGFR1-MET-ERBB2 axis as both a molecular classifier and therapeutic target, providing a rationale for etiology-specific management strategies in HCC precision oncology.
METHODS: Through integrated analysis of genomic data Egyptian cohort comprising 48 HCC cases (23 non-HCV, 25 HCV-positive) was examined and validated against TCGA/ICGC datasets using cBioPortal and Cytoscape.
RESULTS: This study identifies a distinct oncogenic program in non-viral HCC characterized by recurrent alterations in receptor tyrosine kinases (RTKs) FGFR1, MET, ERBB2 and FLT3. These mutations were found to be 4.3-fold more prevalent in non-HCV HCC compared to viral counterparts (26.1% vs. 6.0%, p=0.008), demonstrating strong etiological specificity. Functional characterization revealed these alterations converge on MAPK and PI3K-AKT-mTOR signaling cascades through shared adaptor proteins, creating an interconnected signaling network that drives tumor progression.
CONCLUSION: Clinically, FGFR1/MET co-alterations predicted significantly worse outcomes (HR=2.3 for recurrence, 95% CI 1.1-4.8), while maintaining 92% specificity for non-viral HCC diagnosis. These findings establish the FGFR1-MET-ERBB2 axis as both a molecular classifier and therapeutic target, providing a rationale for etiology-specific management strategies in HCC precision oncology.