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Published on: August 19, 2025
Proteomic study explores AGR2 as pro-metastatic protein in HCC
Hongxiu Yu1, Jian Zhao, Ling Lin
1Institutes of Biomedical Sciences, Fudan University, 130 Dong'an Road, Shanghai, P. R. China 200032.
Molecular Biosystems
|July 26, 2012
Summary
High AGR2 expression promotes hepatocellular carcinoma (HCC) metastasis. Inhibiting AGR2 reduces HCC cell invasion, suggesting AGR2 as a therapeutic target for liver cancer.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Research
Background:
- Hepatocellular carcinoma (HCC) is a prevalent and aggressive malignancy with poor prognosis, largely due to metastasis.
- Identifying molecular drivers of HCC metastasis is crucial for developing effective treatments.
Purpose of the Study:
- To investigate the role of AGR2 in hepatocellular carcinoma (HCC) metastasis.
- To explore the potential molecular mechanisms underlying AGR2-mediated HCC invasion and metastasis.
Main Methods:
- Analysis of AGR2 expression in metastatic HCC cell lines and patient samples.
- In vitro and in vivo experiments using siRNA to inhibit AGR2 and assess cell invasion.
- Tandem affinity purification (TAP) and Ingenuity Pathway Analysis (IPA) to identify AGR2-interacting proteins and pathways.
Main Results:
- High AGR2 expression was observed in metastatic HCC cell lines and patient samples.
- AGR2 overexpression enhanced HCC cell invasion in vitro and in vivo.
- siRNA-mediated inhibition of AGR2 significantly reduced HCC cell invasion.
- TAP identified 18 AGR2-binding proteins, with IPA suggesting involvement in MAPK and Caspase pathways.
Conclusions:
- Overexpression of AGR2 promotes HCC metastasis.
- AGR2 may facilitate HCC invasion by influencing MAPK and Caspase pathways via interacting proteins.
- AGR2 represents a potential therapeutic target for mitigating HCC metastasis.
