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Integrative Analysis Identified an Eight-Gene Risk Signature Linked to CDK7 and Explored Its Association with HCC
Bin Lan1, Jie Tan1, Qing Wang1
1Department of Interventional and Vascular Surgery, Hunan Provincial People's Hospital (the First Affiliated Hospital of Hunan Normal University), Changsha, China.
Oncology Research
|July 25, 2026
Summary
This study identifies an eight-gene signature linked to Cyclin-dependent kinase 7 (CDK7) that predicts outcomes in hepatocellular carcinoma (HCC). CDK7 promotes HCC aggressiveness and may be a therapeutic target.
Area of Science:
- Oncology
- Molecular Biology
- Bioinformatics
Background:
- Cyclin-dependent kinase 7 (CDK7) is crucial for transcription and cell cycle regulation.
- CDK7 inhibition is a potential therapeutic strategy for hepatocellular carcinoma (HCC).
- Understanding CDK7's role is vital for HCC prognosis and treatment.
Purpose of the Study:
- To identify and validate CDK7-associated prognostic genes in HCC.
- To construct a prognostic risk model for HCC.
- To explore CDK7's functional role in HCC progression, including RelA/p65 phosphorylation.
Main Methods:
- Analysis of two independent HCC cohorts (TCGA-HCC and GSE14520).
- Bioinformatic approaches including differential gene expression analysis, Cox regression, and machine learning.
- Validation through in vitro and in vivo experiments focusing on proliferation, migration, invasion, and phosphorylation.
Main Results:
- An eight-gene prognostic signature (CHGA, SH2D5, ACTBP12, SOX2, AGR2, ISM2, KRT12, BRDT) was identified.
- The risk model showed significant correlation with overall survival in both cohorts (p < 0.05).
- CDK7 expression was linked to HCC proliferation, migration, invasion, and tumor growth, potentially via RelA/p65 phosphorylation.
Conclusions:
- A novel eight-gene prognostic signature associated with CDK7 in HCC was discovered.
- Experimental evidence supports CDK7's role in promoting HCC aggressiveness.
- CDK7 shows potential as a prognostic biomarker and therapeutic target for HCC.
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