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Evaluation of transcriptomic molecular classification, biological behavior, and clinicopathological features in
Ruonan Chen1,2,3, Zixiong Zhou1,2,3, Yi Chen4
1Department of Pathology, the School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China.
Background:
Studies in France, Korea, and Singapore found that G1-G6 transcriptomes are involved in hepatocellular carcinoma (HCC) carcinogenesis. However, the suitability of this method in Chinese HCC patients has remained unknown.
Methods:
The correlation between the G1-G6 molecular classification and clinicopathological features were analyzed in 107 Chinese HCC patients through the retrospective cohort study. RNA sequencing and bioinformatics analysis were performed to screen related targets and molecular signaling pathways.
Results:
We found that the G1-G3 subgroups were associated with high serum alpha-fetoprotein (AFP) level, high copy number of hepatitis B virus (HBV) DNA, complex histopathological structure, macrovascular invasion. The G1 subgroup was mainly related to liver cancer stemness, and G3 subgroup showed the worst prognosis. The G5 and G6 subgroups were associated with activation of the Wnt/β-catenin pathway. Compared with the G4-G6 group, the G1-G3 group showed significantly higher expression levels of regenerating family member 1 beta (REG1B), regenerating family member 3 gamma (REG3G), and inositol 1,4,5-trisphosphate receptor type 1 (ITPR1), and enriched calcium signaling pathway.
Conclusions:
This study enhances our understanding of the heterogenicity of China HCC and indicates that the G1-G6 signatures can be used to identify predictive biomarkers against HCC patients in China.
