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DAZAP1 overexpression promotes growth of HCC cell lines: a primary study using CEUS

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Abstract

Purpose

Hepatocellular carcinoma (HCC) is one of the most common types of hepatic carcinoma. The overall prognosis is poor. DAZAP1, a regulator of alternative splicing (AS) events, may participate in tumor growth.

Methods

We collected 105 HCC patients and tissue samples from the Department of Hepatological Surgery in the Second Affiliated Hospital of Qiqihar Medical University. TCGA datasets were downloaded and operated using the R project. DAZAP1 expressions were examined by quantitative RT-PCR and western blotting. CCK8 assay was used to investigate the cell proliferation, and transwell assay was employed to examine the ability of migration and invasion in vitro. Contrast-enhanced ultrasound (CEUS) was used to evaluate images and parameters of the tumor.

Results

DAZAP1 is highly expressed in the tissue samples of HCC. The peak intensity (PI) and area under the curve (AUC) of the tumor is higher than that of liver parenchyma, and correlated with high DAZAP1 expression. Parameters of CEUS in the tumor are correlated with TNM stage, tumor size, and vascularity. High DAZAP1 expression correlates with a shorter survival time and advanced histologic grade (G3–G4). Bioinformatical analysis revealed that downregulation of DAZAP1 identified differentiated expressed genes (DEGs) involved in the tumor growth process.

Conclusions

DAZAP1 is highly expressed in hepatic carcinoma and related to the blood flow, and high DAZAP1 expression predicts poor prognosis. DAZAP1 may promote liver carcinoma cell proliferation, migration, and invasion of HEPG2 cells. CEUS parameters are related to the high DAZAP1 expression, and will help to differentiate the HCC tumor.

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Funding

This study is funded by Qiqihar Science and Technology Bureau (SFZD-2019154).

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Authors and Affiliations

Authors

Contributions

JD and GL conceived and designed the study, and drafted the manuscript. JD, WL, ZY and YW collected, analyzed and interpreted the experimental data. JD and WL revised the manuscript for important intellectual content. All the authors read and approved the final manuscript.

Corresponding author

Correspondence to J. J. Deng.

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Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

The study was approved by Ethical Committee of The Second Affiliated Hospital of Qiqihar Medical University and conducted in accordance with the ethical standards.

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Yes.

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Deng, J.J., Li, G.P., Lu, W. et al. DAZAP1 overexpression promotes growth of HCC cell lines: a primary study using CEUS. Clin Transl Oncol 24, 1168–1176 (2022). https://doi.org/10.1007/s12094-021-02758-8

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  • DOI: https://doi.org/10.1007/s12094-021-02758-8

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