scholarly journals Downregulation of SPARC Expression Decreases Cell Migration and Invasion Involving Epithelial-Mesenchymal Transition through the p-FAK/p-ERK Pathway in Esophageal Squamous Cell Carcinoma

2020 ◽  
Vol 11 (2) ◽  
pp. 414-420 ◽  
Author(s):  
Fei Zhang ◽  
Yiyin Zhang ◽  
Jie Da ◽  
Zhenya Jia ◽  
Hongyang Wu ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Migration ◽  
Esophageal Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Epithelial Mesenchymal Transition ◽  
Migration And Invasion ◽  
Erk Pathway ◽  
Mesenchymal Transition ◽  
Sparc Expression

scholarly journals MicroRNA-138 suppresses epithelial–mesenchymal transition in squamous cell carcinoma cell lines

2011 ◽  
Vol 440 (1) ◽  
pp. 23-31 ◽  
Author(s):  
Xiqiang Liu ◽  
Cheng Wang ◽  
Zujian Chen ◽  
Yi Jin ◽  
Yun Wang ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Migration ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Epithelial Mesenchymal Transition ◽  
Migration And Invasion ◽  
Down Regulation ◽  
Mesenchymal Transition ◽  
Cell Migration And Invasion ◽  
Direct Targeting

Down-regulation of miR-138 (microRNA-138) has been frequently observed in various cancers, including HNSCC (head and neck squamous cell carcinoma). Our previous studies suggest that down-regulation of miR-138 is associated with mesenchymal-like cell morphology and enhanced cell migration and invasion. In the present study, we demonstrated that these miR-138-induced changes were accompanied by marked reduction in E-cad (E-cadherin) expression and enhanced Vim (vimentin) expression, characteristics of EMT (epithelial–mesenchymal transition). On the basis of a combined experimental and bioinformatics analysis, we identified a number of miR-138 target genes that are associated with EMT, including VIM, ZEB2 (zinc finger E-box-binding homeobox 2) and EZH2 (enhancer of zeste homologue 2). Direct targeting of miR-138 to specific sequences located in the mRNAs of the VIM, ZEB2 and EZH2 genes was confirmed using luciferase reporter gene assays. Our functional analyses (knock-in and knock-down) demonstrated that miR-138 regulates the EMT via three distinct pathways: (i) direct targeting of VIM mRNA and controlling the expression of VIM at a post-transcriptional level, (ii) targeting the transcriptional repressors (ZEB2) which in turn regulating the transcription activity of the E-cad gene, and (iii) targeting the epigenetic regulator EZH2 which in turn modulates its gene silencing effects on the downstream genes including E-cad. These results, together with our previously observed miR-138 effects on cell migration and invasion through targeting RhoC (Rho-related GTP-binding protein C) and ROCK2 (Rho-associated, coiled-coil-containing protein kinase 2) concurrently, suggest that miR-138 is a multi-functional molecular regulator and plays major roles in EMT and in HNSCC progression.

scholarly journals Capsaicin Inhibits Migration and Invasion via Inhibiting Epithelial-Mesenchymal Transition in Esophageal Squamous Cell Carcinoma By Up-Regulation of Cldn3 Expression

2021 ◽  
Author(s):  
Ji Feng ◽  
Yin Xu ◽  
Zhouling Wei ◽  
Yiju Xia ◽  
Haoxiang Zhang ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Esophageal Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Lung Metastasis ◽  
Squamous Cell ◽  
Epithelial Mesenchymal Transition ◽  
Migration And Invasion ◽  
Dependent Manner ◽  
Mesenchymal Transition ◽  
Positive Expression

Abstract Purpose To investigate the effects of capsaicin on migration and invasion of esophageal squamous cell carcinoma and the roles of claudin-3 and epithelial-mesenchymal transition (EMT).Methods Cldn3 expression was detected in paired cancerous and adjacent normal esophageal tissues by IHC. The association of Cldn3 with clinical data was analyzed. The migration and invasion of ESCC cells were investigated by exposure of capsaicin. The migration and invasion of ESCC cells with Cldn3 silencing or Cldn3 overexpression were also evaluated. The effects of capsaicin on lung metastasis of ESCC with or without Cldn3 silencing were evaluated.Results: The positive expression of Cldn3 was associated with better prognosis of ESCC patients. Capsaicin attenuated migration and invasion of ESCC and inhibited EMT in a dose-dependent manner. Cldn3 silencing enhanced migration and invasion and EMT in ESCC cells. Cldn3 overexpression inhibited migration and invasion and EMT, similar to exposure of capsaicin. Cldn3 silencing also attenuated inhibition of migration and invasion and EMT by exposure of capsaicin. Cldn3 silencing attenuated inhibition of lung metastasis of ESCC by exposure of capsaicin in vivo.Conclusion The positive expression of Cldn3 showed a better prognosis of ESCC, which was a potentially prognostic indicator. Capsaicin inhibited migration and invasion of ESCC through up-regulation of Cldn3 and inhibition of EMT.

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