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Simultaneous knockdown of APRIL via multiple shRNAs reduces the malignancy of SW480 cells
Haiquan Li1, Keke Shao, Jingchun Wang
1Department of Clinical Laboratory Center, Affiliated Hospital of Nantong University, Nantong Medical College, Nantong University, Nantong 226001, PR China.
Abstract:
A proliferation-inducing ligand (APRIL) is a key factor involved in the tumor development and progression in some tumor tissues and cells. Its overexpression and as gene target in SW480 colon carcinoma cells was confirmed in our previous study. To seek a more potent way to treat colon carcinoma using a gene therapy method, herein, we constructed a multiple short hairpin RNA (shRNA) expression vector containing four shRNAs against the APRIL gene in SW480 cells. APRIL expression levels and cell biological behavior were detected after transfection with different kinds of vectors. As expected, we found that our multiple shRNA vector produced a more significant knockdown effect of APRIL than the vectors containing only one APRIL shRNA. Furthermore, our findings indicate that silencing APRIL expression in SW480 cells decreased their malignancy by reducing proliferation, invasion and adhesion, as well as inducing apoptosis. Based on our findings, vectors containing multiple shRNAs to silence the expression of APRIL may be exploited as a novel therapeutic strategy for tumors.
Insights
This study developed a novel gene therapy using multiple shRNAs to silence proliferation-inducing ligand (APRIL) in colon cancer cells. This approach significantly reduced tumor cell malignancy and offers a potential new treatment strategy.
Area of Science:
- Oncology
- Molecular Biology
- Gene Therapy
Background:
- APRIL is implicated in tumor development and progression.
- APRIL overexpression was previously confirmed in SW480 colon carcinoma cells.
Purpose of the Study:
- To develop a more potent gene therapy for colon carcinoma.
- To construct and evaluate a multiple shRNA expression vector targeting APRIL in SW480 cells.
Main Methods:
- Construction of a multiple shRNA expression vector targeting the APRIL gene.
- Transfection of SW480 colon carcinoma cells with various shRNA vectors.
- Assessment of APRIL expression levels and cell biological behavior.
Main Results:
- The multiple shRNA vector demonstrated a more significant APRIL knockdown effect compared to single shRNA vectors.
- Silencing APRIL expression reduced SW480 cell proliferation, invasion, and adhesion.
- APRIL silencing also induced apoptosis in SW480 colon carcinoma cells.
Conclusions:
- Multiple shRNAs targeting APRIL offer enhanced gene silencing efficacy.
- APRIL silencing reduces colon carcinoma cell malignancy.
- Multiple shRNA vectors targeting APRIL represent a promising therapeutic strategy for tumors.
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