scholarly journals Aryl Hydrocarbon Receptor Controls Adhesion and Migration of Colon Cancer Cells

2018 ◽  
Vol 1 (3) ◽  
Author(s):  
Mattias Lepsenyi ◽  
Nader Algethami ◽  
Amr A. Al-Haidari ◽  
Anwar Algaber ◽  
Ingvar Syk ◽  
...  

AbstractPeritoneal metastasis is an insidious aspect of colorectal cancer. The aim of the present study was to define mechanisms regulating colon cancer cell adhesion and spread to peritoneal wounds after abdominal surgery. Mice was laparotomized and injected intraperitoneally with CT-26 colon carcinoma cells and metastatic noduli in the peritoneal cavity was quantified after treatment with a CXCR2 antagonist or integrin-αV-antibody. CT-26 cells expressed cell surface chemokine receptors CXCR2, CXCR3, CXCR4 and CXCR5. Stimulation with the CXCR2 ligand, CXCL2, dose-dependently increased proliferation and migration of CT-26 cells in vitro. The CXCR2 antagonist, SB225002, dose-dependently decreased CXCL2-induced proliferation and migration of colon cancer cells in vitro. Intraperitoneal administration of CT-26 colon cancer cells resulted in wide-spread growth of metastatic nodules at the peritoneal surface of laparotomized animals. Laparotomy increased gene expression of CXCL2 at the incisional line. Pretreatment with CXCR2 antagonist reduced metastatic nodules by 70%. Moreover, stimulation with CXCL2 increased CT-26 cell adhesion to extracellular matrix (ECM) proteins in a CXCR2-dependent manner. CT-26 cells expressed the αV, β1 and β3 integrin subunits and immunoneutralization of αV abolished CXCL2-triggered adhesion of CT-26 to vitronectin, fibronectin and fibrinogen. Finally, inhibition of the αV integrin significantly attenuated the number of carcinomatosis nodules by 69% in laparotomized mice. These results were validated by use of the human colon cancer cell line HT-29 in vitro. Our data show that colon cancer cell adhesion and growth on peritoneal wound sites is mediated by a CXCL2-CXCR2 signaling axis and αV integrin-dependent adhesion to ECM proteins.


Gene ◽  
2016 ◽  
Vol 586 (1) ◽  
pp. 41-47 ◽  
Author(s):  
Jian Wang ◽  
Hai-Feng Wu ◽  
Wei Shen ◽  
Dong-Yan Xu ◽  
Ting-Yan Ruan ◽  
...  

2021 ◽  
Author(s):  
Daniella Paiva Bonfim ◽  
Celso Vataru Nakamura ◽  
João Xavier Araújo Júnior ◽  
Greisiele Lorena Pessini ◽  
Paulo Emílio Correa Leite ◽  
...  

2021 ◽  
Vol 12 (4) ◽  
Author(s):  
Yong Ji ◽  
Yiqian Liu ◽  
Changchun Sun ◽  
Lijiang Yu ◽  
Zhao Wang ◽  
...  

AbstractAs a result of mutations in the upstream components of the Wnt/β-catenin signaling pathway, this cascade is abnormally activated in colon cancer. Hence, identifying the activation mechanism of this pathway is an urgent need for the treatment of colon cancer. Here, we found an increase in ADCK1 (AarF domain-containing kinase 1) expression in clinical specimens of colon cancer and animal models. Upregulation of ADCK1 expression promoted the colony formation and infiltration of cancer cells. Downregulation of ADCK1 expression inhibited the colony formation and infiltration of cancer cells, in vivo tumorigenesis, migration, and organoid formation. Molecular mechanistic studies demonstrated that ADCK1 interacted with TCF4 (T-cell factor 4) to activate the β-catenin/TCF signaling pathway. In conclusion, our research revealed the functions of ADCK1 in the development of colon cancer and provided potential therapeutic targets.


2018 ◽  
Vol 20 (1) ◽  
pp. 53 ◽  
Author(s):  
Marta Wawro ◽  
Katarzyna Chojnacka ◽  
Katarzyna Wieczorek-Szukała ◽  
Katarzyna Sobierajska ◽  
Jolanta Niewiarowska

Colon cancer, the second leading cause of cancer-related deaths in the world, is usually diagnosed in invasive stages. The interactions between cancer cells and cells located in their niche remain the crucial mechanism inducing tumor metastasis. The most important among those cells are cancer-associated fibroblasts (CAFs), the heterogeneous group of myofibroblasts transdifferentiated from numerous cells of different origin, including endothelium. The endothelial-to-mesenchymal transition (EndMT) is associated with modulation of cellular morphology, polarization and migration ability as a result of microtubule cytoskeleton reorganization. Here we reveal, for the first time, that invasive colon cancer cells regulate EndMT of endothelium via tubulin-β3 upregulation and its phosphorylation. Thus, we concluded that therapies based on inhibition of tubulin-β3 expression or phosphorylation, or blocking tubulin-β3’s recruitment to the microtubules, together with anti-inflammatory chemotherapeutics, are promising means to treat advanced stages of colon cancer.


2012 ◽  
Vol 166 (2) ◽  
pp. 587-601 ◽  
Author(s):  
R Minelli ◽  
L Serpe ◽  
P Pettazzoni ◽  
V Minero ◽  
G Barrera ◽  
...  

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