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Updated: Apr 25, 2026

Author Spotlight: Investigating Immune Cell Dynamics in the Tumor Microenvironment — Challenges and Innovations in Cancer Prognosis
Published on: April 12, 2024
Nuclear expression of phosphorylated TRAF2- and NCK-interacting kinase in hepatocellular carcinoma is associated with
Jing Jin1, Hae Yoen Jung1, Yuli Wang2
1Department of Pathology, Seoul National University College of Medicine, 28 Yongon-dong, Chongno-gu, Seoul 110-799, Republic of Korea.
Background And Aims:
TRAF2- and NCK-interacting kinase (TNIK) is a member of the germinal center kinase family and a transcription factor 4 (TCF4) interactor is recruited to promoters of Wnt target genes via phosphorylation of the TCF/β-catenin complex. The aim of this study was to evaluate the TNIK, the active form of TNIK (p-TNIK), and β-catenin expression in hepatocellular carcinoma (HCC), and to identify the prognostic significance of p-TNIK.
Methods:
We assessed the expression status of TNIK, p-TNIK, and β-catenin by using immunohistochemical analysis of 302 HCCs in 8 tissue microarray blocks, and we evaluated their clinicopathologic features and survival rates based on their p-TNIK expression.
Results:
Of 302 HCCs, 92.7% stained positive for TNIK in the cytoplasm. Nuclear expression of p-TNIK was identified in 7.9% HCCs. Aberrant cytoplasmic expression of β-catenin was identified in 77.2% and nuclear expression in 3.3%. p-TNIK nuclear staining was positively correlated to β-catenin nuclear expression (P=0.036). Cytoplasmic and nuclear expression of p-TNIK was more frequently observed in high Edmondson-Steiner (ES) nuclear grade groups (P=0.030). Nuclear p-TNIK expression was also associated with pathological M1 stage (pM1 stage) patients (P<0.0001). Aberrant cytoplasmic expression of β-catenin was more frequently identified in larger tumors (P=0.014). Univariate (DFS, P=0.049; OS, 0.037) and multivariate analysis (DFS, P=0.006; OS, P=0.003) confirmed the independent prognostic significance of nuclear p-TNIK expression.
Conclusion:
This is the first time that nuclear p-TNIK expression was studied in HCC, and p-TNIK nuclear expression was associated with poor prognosis and is a candidate prognostic marker for HCC.
Insights
Nuclear p-TNIK expression in hepatocellular carcinoma (HCC) indicates a poor prognosis. This study identifies phosphorylated TNIK (p-TNIK) as a potential prognostic marker for HCC, aiding in patient outcome prediction.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- TRAF2- and NCK-interacting kinase (TNIK) is a germinal center kinase family member and TCF4 interactor.
- TNIK is recruited to Wnt target gene promoters via TCF/β-catenin complex phosphorylation.
Purpose of the Study:
- Evaluate TNIK, p-TNIK, and β-catenin expression in hepatocellular carcinoma (HCC).
- Determine the prognostic significance of p-TNIK in HCC.
Main Methods:
- Immunohistochemical analysis of 302 HCC tissue samples.
- Evaluation of TNIK, p-TNIK, and β-catenin expression.
- Correlation with clinicopathologic features and survival rates.
Main Results:
- Nuclear p-TNIK expression observed in 7.9% of HCCs, correlated with nuclear β-catenin.
- p-TNIK expression associated with higher tumor grade and advanced pathological M1 stage.
- Nuclear p-TNIK expression independently predicted poor Disease-Free Survival (DFS) and Overall Survival (OS).
Conclusions:
- This study is the first to investigate nuclear p-TNIK expression in HCC.
- Nuclear p-TNIK is associated with poor prognosis in HCC patients.
- p-TNIK is a potential prognostic marker for HCC.
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