TGF‐β1 induces amoeboid‐to‐mesenchymal transition of CD44 high oral squamous cell carcinoma cells via miR‐422a downregulation through ERK activation and Cofilin‐1 phosphorylation

2020 ◽  
Author(s):  
Sho Yokoyama ◽  
Hideo Shigeishi ◽  
Hiroshi Murodumi ◽  
Miyuki Sakuma ◽  
Hiroki Kato ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Oral Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Carcinoma Cells ◽  
Mesenchymal Transition ◽  
Erk Activation ◽  
Tgf Β1

scholarly journals Quercetin Inhibits Cell Survival and Metastatic Ability via the EMT-Mediated Pathway in Oral Squamous Cell Carcinoma

Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 757
Author(s):  
So Ra Kim ◽  
Eun Young Lee ◽  
Da Jeong Kim ◽  
Hye Jung Kim ◽  
Hae Ryoun Park
Keyword(s):  
Cell Cycle ◽  
Squamous Cell Carcinoma ◽  
Oral Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Transforming Growth Factor ◽  
Hacat Cells ◽  
Mesenchymal Transition ◽  
Anticancer Effects ◽  
Tgf Β1

This study aimed to investigate whether quercetin exerts anticancer effects on oral squamous cell carcinoma (OSCC) cell lines and to elucidate its mechanism of action. These anticancer effects in OSCC cells were assessed using an MTT assay, flow cytometry (to assess the cell cycle), wound-healing assay, invasion assay, Western blot analysis, gelatin zymography, and immunofluorescence. To investigate whether quercetin also inhibits transforming growth factor β1 (TGF-β1)-induced epithelial–mesenchymal transition (EMT) in human keratinocyte cells, HaCaT cells were treated with TGF-β1. Overall, our results strongly suggest that quercetin suppressed the viability of OSCC cells by inducing cell cycle arrest at the G2/M phase. However, quercetin did not affect cell viability of human keratinocytes such as HaCaT (immortal keratinocyte) and nHOK (primary normal human oral keratinocyte) cells. Additionally, quercetin suppresses cell migration through EMT and matrix metalloproteinase (MMP) in OSCC cells and decreases TGF-β1-induced EMT in HaCaT cells. In conclusion, this study is the first, to our knowledge, to demonstrate that quercetin can inhibit the survival and metastatic ability of OSCC cells via the EMT-mediated pathway, specifically Slug. Quercetin may thus provide a novel pharmacological approach for the treatment of OSCCs.

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