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Wang J, Yang L, Mei J, Li Z, Huang Y, Sun H, Zheng K, Kuang H, Luo W. Knockdown of Notch Suppresses Epithelial-mesenchymal Transition and Induces Angiogenesis in Oral Submucous Fibrosis by Regulating TGF-β1. Biochem Genet 2024; 62:1055-1069. [PMID: 37526864 DOI: 10.1007/s10528-023-10452-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 07/06/2023] [Indexed: 08/02/2023]
Abstract
Oral submucous fibrosis (OSF) is a chronic disorder with a high malignant transformation rate. Epithelial-mesenchymal transition (EMT) and angiogenesis are key events in OSF. The Notch signaling plays an essential role in the pathogenesis of various fibrotic diseases, including OSF. Our study aimed to explore the effects of Notch on the EMT and angiogenesis processes during the development of OSF. The expression of Notch in OSF tissues versus normal buccal mucosa samples was compared. Arecoline was used to induce myofibroblast transdifferentiation of buccal mucosal fibroblasts (BMFs). Short hairpin RNA technique was used to knockdown Notch in BMFs. Pirfenidone and SRI-011381 were used to inhibit and activate the TGF-β1 signaling pathway in BMFs, respectively. The expression of Notch was markedly upregulated in OSF tissues and fibrotic BMFs. Knockdown of Notch significantly decreased the viability and promoted apoptosis in BMFs subjected to arecoline stimulation. Downregulation of Notch also significantly suppressed the EMT process, as shown by the reduction of N-cadherin and vimentin with concomitant upregulation of E-cadherin. In addition, knockdown of Notch upregulated VEGF and enhanced the angiogenic activity of fBMFs. Moreover, inhibition of TGF-β1 suppressed viability and EMT, promoted apoptosis, and induced angiogenesis of fBMFs, while activation of TGF-β1 significantly diminished the effects of Notch knockdown on fBMFs. Knockdown of Notch suppressed EMT and induced angiogenesis in OSF by regulating TGF-β1, suggesting that the Notch-TGF-β1 pathway may serve as a therapeutic intervention target for OSF.
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Affiliation(s)
- Jinrong Wang
- Department of Stomatology, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, China
- School of Stomatology, Hainan Medical University, Haikou, 571199, China
| | - Liyan Yang
- Department of Stomatology, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, China
- School of Stomatology, Hainan Medical University, Haikou, 571199, China
| | - Jie Mei
- Department of Stomatology, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, China
- School of Stomatology, Hainan Medical University, Haikou, 571199, China
| | - Zhixin Li
- Department of Stomatology, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, China
- School of Stomatology, Hainan Medical University, Haikou, 571199, China
| | - Yuqi Huang
- Department of Stomatology, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, China
- School of Stomatology, Hainan Medical University, Haikou, 571199, China
| | - Honglan Sun
- Department of Stomatology, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, China
- School of Stomatology, Hainan Medical University, Haikou, 571199, China
| | - Kaiyue Zheng
- Department of Stomatology, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, China
- School of Stomatology, Hainan Medical University, Haikou, 571199, China
| | - Huifang Kuang
- Department of Stomatology, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, China
- School of Stomatology, Hainan Medical University, Haikou, 571199, China
| | - Wen Luo
- Department of Stomatology, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, China.
- School of Stomatology, Hainan Medical University, Haikou, 571199, China.
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