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Polypeptide N-acetylgalactosaminyltransferase 2 regulates cellular metastasis-associated behavior in gastric cancer

  • Authors:
    • Dong Hua
    • Li Shen
    • Lan Xu
    • Zhi Jiang
    • Yinghui Zhou
    • Aihuan Yue
    • Shitao Zou
    • Zhihong Cheng
    • Shiliang Wu
  • View Affiliations / Copyright

    Affiliations: The Fourth Affiliated Hospital of Soochow University, Wuxi, Jiangsu 214062, P.R. China, Department of Biochemistry and Mollecular Biology, School of Medicine, Soochow University, Suzhou, Jiangsu 215123, P.R. China
    Copyright: © Hua et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 3.0].
  • Pages: 1267-1274
    |
    Published online on: September 18, 2012
       https://doi.org/10.3892/ijmm.2012.1130
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Abstract

Aberrant glycosylation of cell surface glycoprotein due to specific alterations of glycosyltransferase activity is usually associated with invasion and metastasis of cancer, particularly of gastric carcinomas. Polypeptide N-acetylgalactosaminyltransferase 2 (ppGalNAc-T2), which catalyzes initiation of mucin-type O-glycosylation, is also involved in tumor migration and invasion. However, a comprehensive understanding of how ppGalNAc-T2 correlates with the metastasic potential of human gastric cancer is not currently available. In the present study, ppGalNAc-T2 was detected in a variety of human poorly differentiated tumor cells, and expression appeared to be higher in SGC7901 gastric cancer cells. In addition, we investigated the potential effects of ppGalNAc-T2 on growth and metastasis-associated behavior in SGC7901 cells after stable transfection with ppGalNAc-T2 sense and antisense vectors. We found that cell proliferation, adhesion and invasion were decreased in ppGalNAc-T2 overexpressed cells but increased in ppGalNAc-T2 downregulated cells. Therefore, we attempted to clarify the mechanisms underlying the anti-metastatic activities of ppGalNAc-T2. Further investigation indicated that overexpression of ppGalNAc-T2 is involved in the inhibition of matrix metalloproteinase (MMP)-2 expression at both the protein and mRNA levels, which may be associated with ppGalNAc-T2 suppressing the expression of transforming growth factor (TGF)-β1. However, it did not exhibit any apparent correlation with MMP-14 expression levels. Our data show the effect of ppGalNAc-T2 on proliferation, adhesion or invasion of SGC7901 gastric cancer cells, suggesting that ppGalNAc-T2 may exert anti-proliferative and anti-metastatic activity through the decrease of MMP-2 and TGF-β1. These results indicate that ppGalNAc‑T2 may be used as a novel therapeutic target for human gastric cancer treatment.
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Copy and paste a formatted citation
Spandidos Publications style
Hua D, Shen L, Xu L, Jiang Z, Zhou Y, Yue A, Zou S, Cheng Z and Wu S: Polypeptide N-acetylgalactosaminyltransferase 2 regulates cellular metastasis-associated behavior in gastric cancer. Int J Mol Med 30: 1267-1274, 2012.
APA
Hua, D., Shen, L., Xu, L., Jiang, Z., Zhou, Y., Yue, A. ... Wu, S. (2012). Polypeptide N-acetylgalactosaminyltransferase 2 regulates cellular metastasis-associated behavior in gastric cancer. International Journal of Molecular Medicine, 30, 1267-1274. https://doi.org/10.3892/ijmm.2012.1130
MLA
Hua, D., Shen, L., Xu, L., Jiang, Z., Zhou, Y., Yue, A., Zou, S., Cheng, Z., Wu, S."Polypeptide N-acetylgalactosaminyltransferase 2 regulates cellular metastasis-associated behavior in gastric cancer". International Journal of Molecular Medicine 30.6 (2012): 1267-1274.
Chicago
Hua, D., Shen, L., Xu, L., Jiang, Z., Zhou, Y., Yue, A., Zou, S., Cheng, Z., Wu, S."Polypeptide N-acetylgalactosaminyltransferase 2 regulates cellular metastasis-associated behavior in gastric cancer". International Journal of Molecular Medicine 30, no. 6 (2012): 1267-1274. https://doi.org/10.3892/ijmm.2012.1130
Copy and paste a formatted citation
x
Spandidos Publications style
Hua D, Shen L, Xu L, Jiang Z, Zhou Y, Yue A, Zou S, Cheng Z and Wu S: Polypeptide N-acetylgalactosaminyltransferase 2 regulates cellular metastasis-associated behavior in gastric cancer. Int J Mol Med 30: 1267-1274, 2012.
APA
Hua, D., Shen, L., Xu, L., Jiang, Z., Zhou, Y., Yue, A. ... Wu, S. (2012). Polypeptide N-acetylgalactosaminyltransferase 2 regulates cellular metastasis-associated behavior in gastric cancer. International Journal of Molecular Medicine, 30, 1267-1274. https://doi.org/10.3892/ijmm.2012.1130
MLA
Hua, D., Shen, L., Xu, L., Jiang, Z., Zhou, Y., Yue, A., Zou, S., Cheng, Z., Wu, S."Polypeptide N-acetylgalactosaminyltransferase 2 regulates cellular metastasis-associated behavior in gastric cancer". International Journal of Molecular Medicine 30.6 (2012): 1267-1274.
Chicago
Hua, D., Shen, L., Xu, L., Jiang, Z., Zhou, Y., Yue, A., Zou, S., Cheng, Z., Wu, S."Polypeptide N-acetylgalactosaminyltransferase 2 regulates cellular metastasis-associated behavior in gastric cancer". International Journal of Molecular Medicine 30, no. 6 (2012): 1267-1274. https://doi.org/10.3892/ijmm.2012.1130
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