Sex determining region Y-box 9 induced microtubule formation and epithelial⁃mesenchymal transition in human oral squamous cell carcinoma CAL27 cells.

Sheng HUANG; Qi-Yuan ZHANG; Ai-E HE; Hong-Bo LI; Zhi-Xing ZHANG

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Sex determining region Y-box 9 induced microtubule formation and epithelial⁃mesenchymal transition in human oral squamous cell carcinoma CAL27 cells.

Author: Sheng HUANG ¹ ; Qi-Yuan ZHANG ² ; Ai-E HE ³ ; Hong-Bo LI ⁴ ; Zhi-Xing ZHANG ⁵
Author Information

1. Dept. of Stomatology, East Hospital, Mafangshan Campus, Wuhan University of Science and Technology, Wuhan 430000, China.
2. Dept. of Cariology and Endodontics, School of Stomatology, Wuhan University, Wuhan 430000, China.
3. Dept. of Stomatology, The Fifth Hospital of Wuhan, Wuhan 430000, China.
4. Dept. of Prosthodontics, School of Stomatology, Wuhan University, Wuhan 430000, China.
5. Dept. of Stomatology, Affiliated Hospital of Tongji Medical University, Wuhan 430000, China.
Publication Type:Journal Article
Keywords: Wnt/β-catenin pathway; epithelial-mesenchymal transition; microtubule formation; oral squamous cell carcinoma; sex determining region Y-box 9
MeSH: Carcinoma, Squamous Cell; Cell Line, Tumor; Epithelial-Mesenchymal Transition; Head and Neck Neoplasms; Humans; Microtubules/metabolism*; Mouth Neoplasms; SOX9 Transcription Factor/metabolism*; Squamous Cell Carcinoma of Head and Neck; Wnt Signaling Pathway; beta Catenin/metabolism*
From: West China Journal of Stomatology 2021;39(1):74-80
CountryChina
Language:English
Abstract: OBJECTIVES:This study aimed to explore the effect of sex determining region Y-box 9 (SOX9) on the microtubule formation and epithelial-mesenchymal transition (EMT) of human oral squamous cell carcinoma (OSCC) CAL27 and the underlying mechanism.
METHODS:SOX9-shRNA1 and SOX9-shRNA2 were designed and synthesized and then transfected into CAL27 cells. The expression of SOX9 was detected by quantitative real-time polymerase chain reaction. Microtubule formation assay was used to detect the change in the number of microtubule nodules after interfering with SOX9. Immunofluorescence was used to detect the Vimentin content. Western blot was used to detect the protein expression of EMT marker molecules and Wnt/β-catenin pathway-related proteins, such as E-cadherin, N-cadherin, Fibronectin, Wnt, β-catenin, T-cell factor-4 (TCF-4).
RESULTS:The expression level of SOX9 significantly decreased after transfection with SOX9-shRNA1 and SOX9-shRNA2 in CAL27 cells (
CONCLUSIONS:Interference with SOX9 decreased Vimentin content and inhibited the microtubule formation and protein expression of EMT marker molecules, as well as the expression of proteins related to the Wnt/β-catenin pathway. Thus, SOX9 can induce microtubule formation and EMT in CAL27, which was related to the inhibition of the Wnt/β-catenin pathway activation.