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Suppression of mucin 2 promotes interleukin-6 secretion and tumor growth in an orthotopic immune-competent colon cancer animal model

  • Authors:
    • Yan-Shen Shan
    • Hui-Ping Hsu
    • Ming-Derg Lai
    • Meng-Chi Yen
    • Jung-Hua Fang
    • Tzu-Yang Weng
    • Yi-Ling Chen
  • View Affiliations / Copyright

    Affiliations: Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan, R.O.C., Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan, Taiwan, R.O.C., Laboratory Animal Center, College of Medicine, National Cheng Kung University, Tainan, Taiwan, R.O.C., Department of Senior Citizen Service Management, Chia Nan University of Pharmacy and Science, Tainan, Taiwan, R.O.C.
    Copyright: © Shan et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 3.0].
  • Pages: 2335-2342
    |
    Published online on: October 13, 2014
       https://doi.org/10.3892/or.2014.3544
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Abstract

Mucin 2 (MUC2) is the major secreted mucin of the large intestine and is expressed by adenomas and mucinous carcinomas. Since colon cancer is associated with a proinflammatory microenvironment and dysregulated MUC2 expression, the aim of this study was to characterize the effects of MUC2 gene expression in colon tumor progression using colonic cancer cells. CT26 colon cancer cells were stably transfected with MUC2 siRNA (MUC2 RNAi) or a control construct containing a nonspecific sequence (scrambled RNAi). Expression of MUC2 was significantly decreased in the MUC2 RNAi cell clones. Although MUC2 suppression did not affect the cell growth of colon cancer cells in vitro, MUC2 knockdown promoted tumor growth in an orthotopic colon cancer model in vivo. MUC2 silencing also increased interleukin (IL)-6 secretion by colon cancer cells. IL-6 neutralization attenuated tumor formation by MUC2 RNAi cells; it also increased CD8 T cell infiltration into the peritoneum. Taken together, to the best of our knowledge, this is the first study indicating that the immune response to cancer cells plays an important role in tumor growth regulated by MUC2. Furthermore, given the effects of MUC2 on IL-6 secretion, its targeting may represent a potentially useful strategy to treat colonic carcinomas.
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Copy and paste a formatted citation
Spandidos Publications style
Shan Y, Hsu H, Lai M, Yen M, Fang J, Weng T and Chen Y: Suppression of mucin 2 promotes interleukin-6 secretion and tumor growth in an orthotopic immune-competent colon cancer animal model. Oncol Rep 32: 2335-2342, 2014.
APA
Shan, Y., Hsu, H., Lai, M., Yen, M., Fang, J., Weng, T., & Chen, Y. (2014). Suppression of mucin 2 promotes interleukin-6 secretion and tumor growth in an orthotopic immune-competent colon cancer animal model. Oncology Reports, 32, 2335-2342. https://doi.org/10.3892/or.2014.3544
MLA
Shan, Y., Hsu, H., Lai, M., Yen, M., Fang, J., Weng, T., Chen, Y."Suppression of mucin 2 promotes interleukin-6 secretion and tumor growth in an orthotopic immune-competent colon cancer animal model". Oncology Reports 32.6 (2014): 2335-2342.
Chicago
Shan, Y., Hsu, H., Lai, M., Yen, M., Fang, J., Weng, T., Chen, Y."Suppression of mucin 2 promotes interleukin-6 secretion and tumor growth in an orthotopic immune-competent colon cancer animal model". Oncology Reports 32, no. 6 (2014): 2335-2342. https://doi.org/10.3892/or.2014.3544
Copy and paste a formatted citation
x
Spandidos Publications style
Shan Y, Hsu H, Lai M, Yen M, Fang J, Weng T and Chen Y: Suppression of mucin 2 promotes interleukin-6 secretion and tumor growth in an orthotopic immune-competent colon cancer animal model. Oncol Rep 32: 2335-2342, 2014.
APA
Shan, Y., Hsu, H., Lai, M., Yen, M., Fang, J., Weng, T., & Chen, Y. (2014). Suppression of mucin 2 promotes interleukin-6 secretion and tumor growth in an orthotopic immune-competent colon cancer animal model. Oncology Reports, 32, 2335-2342. https://doi.org/10.3892/or.2014.3544
MLA
Shan, Y., Hsu, H., Lai, M., Yen, M., Fang, J., Weng, T., Chen, Y."Suppression of mucin 2 promotes interleukin-6 secretion and tumor growth in an orthotopic immune-competent colon cancer animal model". Oncology Reports 32.6 (2014): 2335-2342.
Chicago
Shan, Y., Hsu, H., Lai, M., Yen, M., Fang, J., Weng, T., Chen, Y."Suppression of mucin 2 promotes interleukin-6 secretion and tumor growth in an orthotopic immune-competent colon cancer animal model". Oncology Reports 32, no. 6 (2014): 2335-2342. https://doi.org/10.3892/or.2014.3544
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