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Updated: Oct 26, 2025

In Vitro and In Vivo Models to Study Corneal Endothelial-mesenchymal Transition
Published on: August 20, 2016
Vorinostat targets UBE2C to reverse epithelial-mesenchymal transition and control cervical cancer growth through the
Botao Pan1, Shuanghong Yin2, Fang Peng3
1Foshan Maternal and Child Health Research Institute, South Medical University Affiliated Maternal & Child Health Hospital of Foshan, Foshan, 528000, China.
Abstract:
Vorinostat is a histone deacetylase inhibitor (HDACi) that was demonstrated in our previous study to inhibit the proliferation, migration, and invasion of cervical cancer cells by regulating the PI3K/Akt signaling pathway. However, the molecular mechanism of vorinostat in cervical cancer treatment remains to be further elucidated. A nude mouse xenograft model was established to analyze the antitumor effect of vorinostat in vivo. The combination of iTRAQ-based proteomics and parallel reaction monitoring (PRM) technology has proven to be an efficient and reliable method to identify potential targets for cancer chemotherapy. In this study, 254 differentially expressed proteins in vorinostat-treated cervical cancer cells, among which 180 were upregulated and 74 were downregulated, were identified by using an iTRAQ-based proteomic strategy. Subsequent bioinformatic and PRM analysis of these differentially expressed proteins indicated that UBE2C is a promising target of vorinostat in the inhibition of cervical cancer cell proliferation. We confirmed that the expression of endogenous UBE2C in cervical cancer cell lines was significantly higher than that in normal cervical epithelial cell lines. Additionally, we found that vorinostat downregulated the expression of UBE2C, SQSTM1/p62, N-cadherin, vimentin and upregulated E-cadherin in SiHa and HeLa cells. Our results also showed that vorinostat can downregulate the expression of SQSTM1/p62, N-cadherin, and vimentin during the treatment of cervical cancer cells by regulating UBE2C, while upregulating the expression of E-cadherin. In conclusion, vorinostat reverses epithelial-mesenchymal transition by targeting UBE2C and controls the proliferation of cervical cancer cells through the ubiquitination pathway. UBE2C can be used as a promising target for the development of vorinostat treatment strategies.
Insights
Vorinostat, a histone deacetylase inhibitor (HDACi), targets UBE2C to inhibit cervical cancer cell proliferation and reverse epithelial-mesenchymal transition. This study identifies UBE2C as a promising therapeutic target for cervical cancer treatment.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Vorinostat (HDACi) previously inhibited cervical cancer cell proliferation, migration, and invasion via the PI3K/Akt pathway.
- The precise molecular mechanisms of vorinostat in cervical cancer require further elucidation.
- Identifying novel therapeutic targets is crucial for advancing cervical cancer treatment strategies.
Purpose of the Study:
- To elucidate the molecular mechanism of vorinostat in cervical cancer treatment.
- To identify potential molecular targets of vorinostat in cervical cancer.
- To investigate the antitumor effect of vorinostat in vivo and in vitro.
Main Methods:
- Utilized iTRAQ-based proteomics to identify differentially expressed proteins in vorinostat-treated cervical cancer cells.
- Employed parallel reaction monitoring (PRM) technology for validation of proteomic findings.
- Established a nude mouse xenograft model to assess in vivo antitumor efficacy.
Main Results:
- Identified 254 differentially expressed proteins (180 upregulated, 74 downregulated) in vorinostat-treated cells.
- UBE2C was identified as a promising target, with significantly higher expression in cancer cells than normal cells.
- Vorinostat downregulated UBE2C, SQSTM1/p62, N-cadherin, vimentin, and upregulated E-cadherin, reversing epithelial-mesenchymal transition.
Conclusions:
- Vorinostat reverses epithelial-mesenchymal transition in cervical cancer by targeting UBE2C.
- Vorinostat controls cervical cancer cell proliferation through the ubiquitination pathway involving UBE2C.
- UBE2C represents a promising therapeutic target for developing vorinostat-based cervical cancer treatment strategies.
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