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Knockdown of SMYD3 by RNA interference inhibits cervical carcinoma cell growth and invasion in vitro
Shu-zhen Wang1, Xue-gang Luo, Jing Shen
1School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, P R China.
Abstract:
Elevated expression of SMYD3 is a frequent genetic abnormality in several malignancies. Few studies knocking down SMYD3 expression in cervical carcinoma cells have been performed to date. In this paper, we established an inducible short hairpin RNA expression system to examine its role in maintaining the malignant phenotype of HeLa cells. After being induced by doxycycline, SMYD3 mRNA and protein expression were both reduced, and significant reductions in cell proliferation, colony formation and migration/invasion activity were observed in the SMYD3-silenced HeLa cells. The percentage of cells in sub-G1 was elevated and DNA ladder formation could be detected, indicating potent induction of apoptosis by SMYD3 knockdown. These findings imply that SMYD3 plays crucial roles in HeLa cell proliferation and migration/invasion, and that it may be a useful therapeutic target in human cervical carcinomas.
Insights
Silencing SMYD3 ( دارد ) in cervical cancer cells reduced proliferation, migration, and invasion. SMYD3 knockdown also induced apoptosis, suggesting it is a potential therapeutic target for cervical carcinomas.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- SMYD3 ( دارد ) is frequently overexpressed in various cancers.
- Its role in cervical carcinoma, particularly in HeLa cells, remains underexplored.
Purpose of the Study:
- To investigate the function of SMYD3 ( دارد ) in maintaining the malignant phenotype of cervical carcinoma (HeLa) cells.
- To assess the therapeutic potential of targeting SMYD3 ( دارد ) in cervical cancer.
Main Methods:
- Established an inducible short hairpin RNA (shRNA) system to silence SMYD3 ( دارد ) expression in HeLa cells.
- Administered doxycycline to induce shRNA expression and subsequent SMYD3 ( دارد ) knockdown.
- Assessed effects on cell proliferation, colony formation, migration, invasion, and apoptosis.
Main Results:
- Doxycycline induction effectively reduced SMYD3 ( دارد ) mRNA and protein levels.
- SMYD3 ( دارد ) knockdown significantly inhibited HeLa cell proliferation, colony formation, and migration/invasion.
- SMYD3 ( دارد ) silencing led to increased apoptosis, evidenced by elevated sub-G1 cell population and DNA ladder formation.
Conclusions:
- SMYD3 ( دارد ) plays a critical role in the proliferation and migration/invasion of cervical carcinoma cells.
- Targeting SMYD3 ( دارد ) presents a promising therapeutic strategy for human cervical carcinomas.
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