Overexpression of TrpC5 promotes tumor metastasis via the HIF-1α–Twist signaling pathway in colon cancer

2017 ◽  
Vol 131 (19) ◽  
pp. 2439-2450 ◽  
Author(s):  
Zhen Chen ◽  
Yaodan Zhu ◽  
Yongfei Dong ◽  
Peng Zhang ◽  
Xiping Han ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Cancer Cells ◽  
Signaling Pathway ◽  
Tumor Metastasis ◽  
Transient Receptor Potential ◽  
Epithelial Mesenchymal Transition ◽  
Hypoxia Inducible Factor ◽  
Receptor Potential ◽  
Transient Receptor Potential Channel ◽  
Mesenchymal Transition

In cancer cells, intracellular Ca2+ homeostasis is altered, and this is involved in tumor initiation, progression, and metastasis. However, little is known about the underlying mechanisms. Here, we report that transient receptor potential channel 5 (TrpC5), a receptor-activated non-selective Ca2+ channel, is correlated with tumor metastasis in colon cancer patients. Moreover, in colon cancer cells, overexpression of TrpC5 caused a robust rise in the concentration of ([Ca2+]i), decreased E-cadherin, and increased mesenchymal biomarker expression, then promoted cell migration, invasion, and proliferation. Interestingly, we found that TrpC5 mediated hypoxia-inducible factor 1α (HIF-1α) expression, activating Twist to promote the epithelial–mesenchymal transition (EMT). Notably, patients with high expression of TrpC5 displayed poorer overall and metastasis-free survival. Taken together, our findings demonstrate that TrpC5 induces the EMT through the HIF-1α–Twist signaling pathway to promote tumor metastasis in colon cancer.

scholarly journals Epithelial–mesenchymal transition and metastasis of colon cancer cells induced by the FAK pathway in cancer-associated fibroblasts

2020 ◽  
Vol 48 (6) ◽  
pp. 030006052093124
Author(s):  
Xuefeng Xuefeng ◽  
Ming-Xing Hou ◽  
Zhi-Wen Yang ◽  
Agudamu Agudamu ◽  
Feng Wang ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Cancer Cells ◽  
Signaling Pathway ◽  
Epithelial Mesenchymal Transition ◽  
3D Culture ◽  
Cancer Associated Fibroblasts ◽  
Colon Cancer Cells ◽  
Mesenchymal Transition ◽  
Lovo Cells ◽  
Related Proteins

Objective The role and mechanism of tetrathiomolybdate (TM) in cancer-associated fibroblasts (CAFs) in colon cancer using three-dimensional (3D) culture were investigated, and the associations between the focal adhesion kinase (FAK) pathway and epithelial–mesenchymal transition (EMT) in CAFs were explored. Methods A 3D co-culture model of colon cancer LOVO cells with CAFs and normal fibroblasts (NFs) was established using Matrigel as a scaffold material. The differential expression of LOXL2 (lysyl oxidase-like 2) in the supernatant of CAFs and NFs was determined using ELISA, and expression levels of EMT-related proteins and FAK signaling pathway-related proteins were determined using western blot. Results LOXL2 levels secreted by CAFs were higher compared with that secreted by NFs. In the CAF + LOVO group, compared with the LOVO group, E-cadherin expression decreased significantly, while N-cadherin and F-PAK expression increased significantly. TM results were opposite compared with the above results. Conclusions CAFs stimulate EMT in human colon cancer LOVO cells by secreting LOXL2 to activate the FAK signaling pathway, thereby promoting tumor metastasis. TM inhibited the occurrence of EMT in the CAF-induced colon cancer LOVO cell line, thereby reducing the invasion and metastasis of colon cancer cells.

scholarly journals Transient Receptor Potential Channel 6 Knockout Ameliorates Kidney Fibrosis by Inhibition of Epithelial–Mesenchymal Transition

2021 ◽  
Vol 8 ◽  
Author(s):  
Yanhong Zhang ◽  
Nina Yin ◽  
Anbang Sun ◽  
Qifang Wu ◽  
Wenzhu Hu ◽  
...  
Keyword(s):  
Transient Receptor Potential ◽  
Epithelial Mesenchymal Transition ◽  
Kidney Diseases ◽  
Receptor Potential ◽  
Transient Receptor Potential Channel ◽  
Kidney Fibrosis ◽  
Mesenchymal Transition ◽  
Transient Receptor ◽  
End Stage ◽  
The Relationship

Kidney fibrosis is generally confirmed to have a significant role in chronic kidney disease, resulting in end-stage kidney failure. Epithelial–mesenchymal transition (EMT) is an important molecular mechanism contributing to fibrosis. Tubular epithelial cells (TEC), the major component of kidney parenchyma, are vulnerable to different types of injuries and are a significant source of myofibroblast by EMT. Furthermore, TRPC6 knockout plays an anti-fibrotic role in ameliorating kidney damage. However, the relationship between TRPC6 and EMT is unknown. In this study, TRPC6−/− and wild-type (WT) mice were subjected to a unilateral ureteric obstruction (UUO) operation. Primary TEC were treated with TGF-β1. Western blot and immunofluorescence data showed that fibrotic injuries alleviated with the inhibition of EMT in TRPC6−/− mice compared to WT mice. The activation of AKT-mTOR and ERK1/2 pathways was down-regulated in the TRPC6−/− mice, while the loss of Na+/K+-ATPase and APQ1 was partially recovered. We conclude that TRPC6 knockout may ameliorate kidney fibrosis by inhibition of EMT through down-regulating the AKT-mTOR and ERK1/2 pathways. This could contribute to the development of effective therapeutic strategies on chronic kidney diseases.

scholarly journals CXCL8 induces epithelial-mesenchymal transition in colon cancer cells via the PI3K/Akt/NF-κB signaling pathway

2017 ◽  
Vol 37 (4) ◽  
pp. 2095-2100 ◽  
Author(s):  
Tao Shen ◽  
Zhibin Yang ◽  
Xianshuo Cheng ◽  
Youchuan Xiao ◽  
Kun Yu ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Cancer Cells ◽  
Signaling Pathway ◽  
Epithelial Mesenchymal Transition ◽  
Colon Cancer Cells ◽  
Mesenchymal Transition

scholarly journals Peroxiredoxin-6 regulates p38-mediated epithelial–mesenchymal transition in HCT116 colon cancer cells

2021 ◽  
Vol 28 (1) ◽  
Author(s):  
Unbin Chae ◽  
Bokyung Kim ◽  
HanSeop Kim ◽  
Young-Ho Park ◽  
Seung Hwan Lee ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Cell Proliferation ◽  
Cancer Cells ◽  
Signaling Pathway ◽  
Cancer Cell ◽  
Epithelial Mesenchymal Transition ◽  
Hct116 Cell ◽  
Colon Cancer Cells ◽  
Mesenchymal Transition ◽  
Hct116 Cells

Abstract Background Peroxiredoxins (Prxs) are antioxidant enzymes that protect cells from oxidative stress induced by several factors. They regulate several signaling pathways, such as metabolism, immune response, and intracellular reactive oxygen species (ROS) homeostasis. Epithelial–mesenchymal transition (EMT) is a transforming process that induces the loss of epithelial features of cancer cells and the gain of the mesenchymal phenotype. The EMT promotes metastasis and cancer cell progression mediated by several pathways, such as mitogen-activated protein kinases (MAPKs) and epigenetic regulators. Methods We used Prx6 overexpressed and downregulated HCT116 cells to study the mechanism between Prx6 and colon cancer. The expression of Prx6, GAPDH, Snail, Twist1, E-cadherin, Vimentin, N-cadherin, ERK, p-ERK, p38, p-p38, JNK, and p-JNK were detected by Western blotting. Additionally, an animal study for xenograft assay was conducted to explore the function of Prx6 on tumorigenesis. Cell proliferation and migration were determined by IncuCyte Cell Proliferation and colony formation assays. Results We confirmed that the expression of Prx6 and EMT signaling highly occurs in HCT116 compared with that in other colon cancer cell lines. Prx6 regulates the EMT signaling pathway by modulating EMT-related transcriptional repressors and mesenchymal genes in HCT116 colon cancer cells. Under the Prx6-overexpressed condition, HCT116 cells proliferation increased significantly. Moreover, the HCT116 cells proliferation decreased in the siPrx6-treated cells. Eleven days after HCT116 cell injection, Prx6 was overexpressed in the HCT116-injected mice, and the tumor volume increased significantly compared with that of the control mice. Furthermore, Prx6 regulates EMT signaling through p38 phosphorylation in colon cancer cells. Conclusion We suggested that Prx6 regulates EMT signaling pathway through p38 phosphorylation modulation in HCT116 colon cancer cells.

Role of SPARC in the epithelial mesenchymal transition induced by PTHrP in human colon cancer cells

2021 ◽  
pp. 111253
Author(s):  
Pedro Carriere ◽  
Natalia Calvo ◽  
María Belén Novoa ◽  
Fernanda Lopez-Moncada ◽  
Alexander Riquelme ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Cancer Cells ◽  
Epithelial Mesenchymal Transition ◽  
Human Colon ◽  
Colon Cancer Cells ◽  
Human Colon Cancer ◽  
Mesenchymal Transition ◽  
Human Colon Cancer Cells

Exosome-mediated delivery of functionally active miRNA-375-3p mimic regulate epithelial mesenchymal transition (EMT) of colon cancer cells

Life Sciences ◽  
2021 ◽  
Vol 269 ◽  
pp. 119035
Author(s):  
Ramazan Rezaei ◽  
Kaveh Baghaei ◽  
Davar Amani ◽  
Andrea Piccin ◽  
Seyed Mahmoud Hashemi ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Cancer Cells ◽  
Epithelial Mesenchymal Transition ◽  
Colon Cancer Cells ◽  
Mesenchymal Transition
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