Related Experiment Video
Updated: Feb 4, 2026
A "Patient-Like" Orthotopic Syngeneic Mouse Model of Hepatocellular Carcinoma Metastasis
Published on: October 24, 2015
[Study on the effects of target-silencing CXCR3 expression on malignant proliferation of hepatocellular carcinoma]
1Department of Pathology, Henan Province People's Hospital, Zhengzhou 450003, China.
Abstract:
Objective: To explicit, the expression of chemokine receptor 3 in HCC tissues and its relationship with overall survival of patients, and to explore the effect of targeted silencing CXCR3 gene on proliferation of hepatocellular carcinoma cells and its mechanism of action. Methods: The expression of CXCR3 in 60 cases of hepatocellular carcinoma and its adjacent tissues were detected by immunohistochemistry. The clinicopathological correlations between the expression levels of CXCR3 in hepatoma tissues of liver cancer patients were analyzed and univariate Kaplan-Meier survival analysis was performed in combination with follow-up data. Huh7 hepatoma cells were infected with lentivirus LV-CXCR3-shRNA. The effects of CXCR3 deletion on proliferation of hepatoma cells were determined by CCK-8 assay and tumor-bearing nude mice experiment. Results: CXCR3 was highly expressed in HCC tissues, and the overall survival rate (OS) of patients with high CXCR3 expression was significantly lower than that of patients with low expression. After the CXCR3 gene was successfully silenced in Huh7 hepatocellular carcinoma cells, the proliferation ability of Huh7 cells was significantly inhibited in vitro, and the tumor growth rate of nude mice was slowed down, and the activity of JAK-STAT pathway in Huh7 cells was decreased, and the levels of c-MYC and Bcl-xl protein were decreased. In addition, deletion of CXCR3 can effectively inhibit IL-6-mediated JAK-STAT pathway activation. Conclusion: CXCR3 high expression indicated that the survival rate was poor, and the target silencing of CXCR3 gene could inhibit the proliferation of hepatocellular carcinoma cells and maybe related to inhibition of JAK-STAT pathway activity. CXCR3 may be a potential target for the treatment of hepatocellular carcinoma.
Insights
High expression of chemokine receptor 3 (CXCR3) in hepatocellular carcinoma (HCC) correlates with poor patient survival. Silencing CXCR3 inhibits HCC cell proliferation, potentially by affecting the JAK-STAT pathway, suggesting CXCR3 as a therapeutic target.
Area of Science:
- Oncology
- Immunology
- Molecular Biology
Background:
- Hepatocellular carcinoma (HCC) is a major global health concern.
- Chemokine receptor 3 (CXCR3) is implicated in various cancers.
- The role of CXCR3 in HCC progression and its therapeutic potential require further elucidation.
Purpose of the Study:
- To investigate CXCR3 expression in HCC tissues and its correlation with patient survival.
- To explore the impact of CXCR3 gene silencing on HCC cell proliferation.
- To elucidate the underlying mechanisms, including the JAK-STAT pathway.
Main Methods:
- Immunohistochemistry to assess CXCR3 expression in 60 HCC and adjacent tissues.
- Kaplan-Meier survival analysis for correlation with overall survival.
- In vitro (Huh7 cells) and in vivo (nude mice) experiments using lentiviral-mediated CXCR3 gene silencing (LV-CXCR3-shRNA).
- CCK-8 assay and tumor-bearing nude mice experiments to evaluate proliferation and tumor growth.
- Analysis of JAK-STAT pathway activity, c-MYC, and Bcl-xl protein levels.
Main Results:
- CXCR3 was significantly upregulated in HCC tissues compared to adjacent tissues.
- High CXCR3 expression was associated with significantly lower overall survival rates in HCC patients.
- Silencing CXCR3 inhibited Huh7 HCC cell proliferation in vitro and slowed tumor growth in vivo.
- CXCR3 silencing decreased JAK-STAT pathway activity and reduced c-MYC and Bcl-xl protein levels.
- CXCR3 deletion inhibited IL-6-mediated JAK-STAT pathway activation.
Conclusions:
- High CXCR3 expression is a negative prognostic marker for HCC patients.
- Targeted silencing of CXCR3 inhibits HCC cell proliferation.
- Inhibition of the JAK-STAT pathway is a potential mechanism by which CXCR3 silencing exerts its anti-tumor effects.
- CXCR3 represents a promising therapeutic target for hepatocellular carcinoma.
Related Concept Videos
02:23Abnormal Proliferation
02:35Chromatin Position Affects Gene Expression
Topologically Associated Domains (TADs)
The 3-dimensional positioning of chromatin in the nucleus influences the...
02:36Cells Coordinate Growth and Proliferation
02:19Buffer Effectiveness
The buffer capacity is the amount of acid or base that can be added to a given volume...
03:26Framing Effects
01:42What is Gene Expression?
Gene expression is the process in which DNA directs the synthesis of functional products, that is, proteins. Cells can regulate gene expression at various stages. It allows organisms to generate different cell types and enables cells to adapt to internal and external factors.
Genetic Information Flows from DNA to RNA to Protein
A gene is a stretch of DNA that serves as the blueprint for functional RNAs and proteins. Since DNA is made up of nucleotides and proteins consist of amino...