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Article

Prometastatic mechanisms of CAF-mediated EMT regulation in pancreatic cancer cells

  • Authors:
    • Tao Shan
    • Shuo Chen
    • Xi Chen
    • Wan Run Lin
    • Wei Li
    • Jiancang Ma
    • Tao Wu
    • Hong Ji
    • Yiming Li
    • Xijuan Cui
    • Ya'an Kang
  • View Affiliations / Copyright

    Affiliations: Department of General Surgery, The Second Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China, Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China, Graduate School, Fourth Military Medical University, Xi'an, Shaanxi 710033, P.R. China, Department of General Surgery, First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China, Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
  • Pages: 121-128
    |
    Published online on: November 23, 2016
       https://doi.org/10.3892/ijo.2016.3779
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Abstract

Tumor metastasis are accompanied by the EMT (epithelial-mesenchymal transition)-MET (mesenchymal-epithelial transition) two-step process. In this study, we investigated the importance of cancer associated fibroblasts (CAF) in the process. First, the primary cultures of isolated pancreatic CAF, fibroblasts of normal pancreatic tissues (NF), and normal hepatic stellate cells (HSF) were identified and verified via the expression of α-SMA and vimentin. Using an indirect three-dimensional co-culture model, the morphological changes were observed by light microscopy and laser scanning confocal microscopy. The invasive and migration capacity of pancreatic cancer cells was determined by Transwell chamber migration assay or scratch assay. The mRNA and protein expression levels of E-cadherin, vimentin, and Gli1 were determined by RT-PCR and western blotting. Primary cultures of isolated CAF, NF, HSF showed satisfactory growth with active proliferation. Indirect co-culture with CAF, BxPc-3 and Panc-1 cells showed significant partial EMT, reduced E-cadherin expression, and enhanced vimentin expression as compared with the single culture and NF/HSF co-culture groups, with corresponding increases in migratory and invasive capacities. PCR and western blotting results showed that mRNA and protein expression levels of Gli1 in CAF and Snail in cancer cells were increased. This process could be reversed by inhibition of hedgehog (HH) signaling in CAF. In the tumor microenvironment, activation of CAF is the key event in mediating partial EMT, and its mechanism may be associated with paracrine action after activation of HH signaling in CAF.
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Copy and paste a formatted citation
Spandidos Publications style
Shan T, Chen S, Chen X, Lin WR, Li W, Ma J, Wu T, Ji H, Li Y, Cui X, Cui X, et al: Prometastatic mechanisms of CAF-mediated EMT regulation in pancreatic cancer cells. Int J Oncol 50: 121-128, 2017.
APA
Shan, T., Chen, S., Chen, X., Lin, W.R., Li, W., Ma, J. ... Kang, Y. (2017). Prometastatic mechanisms of CAF-mediated EMT regulation in pancreatic cancer cells. International Journal of Oncology, 50, 121-128. https://doi.org/10.3892/ijo.2016.3779
MLA
Shan, T., Chen, S., Chen, X., Lin, W. R., Li, W., Ma, J., Wu, T., Ji, H., Li, Y., Cui, X., Kang, Y."Prometastatic mechanisms of CAF-mediated EMT regulation in pancreatic cancer cells". International Journal of Oncology 50.1 (2017): 121-128.
Chicago
Shan, T., Chen, S., Chen, X., Lin, W. R., Li, W., Ma, J., Wu, T., Ji, H., Li, Y., Cui, X., Kang, Y."Prometastatic mechanisms of CAF-mediated EMT regulation in pancreatic cancer cells". International Journal of Oncology 50, no. 1 (2017): 121-128. https://doi.org/10.3892/ijo.2016.3779
Copy and paste a formatted citation
x
Spandidos Publications style
Shan T, Chen S, Chen X, Lin WR, Li W, Ma J, Wu T, Ji H, Li Y, Cui X, Cui X, et al: Prometastatic mechanisms of CAF-mediated EMT regulation in pancreatic cancer cells. Int J Oncol 50: 121-128, 2017.
APA
Shan, T., Chen, S., Chen, X., Lin, W.R., Li, W., Ma, J. ... Kang, Y. (2017). Prometastatic mechanisms of CAF-mediated EMT regulation in pancreatic cancer cells. International Journal of Oncology, 50, 121-128. https://doi.org/10.3892/ijo.2016.3779
MLA
Shan, T., Chen, S., Chen, X., Lin, W. R., Li, W., Ma, J., Wu, T., Ji, H., Li, Y., Cui, X., Kang, Y."Prometastatic mechanisms of CAF-mediated EMT regulation in pancreatic cancer cells". International Journal of Oncology 50.1 (2017): 121-128.
Chicago
Shan, T., Chen, S., Chen, X., Lin, W. R., Li, W., Ma, J., Wu, T., Ji, H., Li, Y., Cui, X., Kang, Y."Prometastatic mechanisms of CAF-mediated EMT regulation in pancreatic cancer cells". International Journal of Oncology 50, no. 1 (2017): 121-128. https://doi.org/10.3892/ijo.2016.3779
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