The mucin-type glycosylating enzyme polypeptide N-acetylgalactosaminyltransferase 14 promotes the migration of ovarian cancer by modifying mucin 13

  • Authors:
    • Ranran Wang
    • Chao Yu
    • Dezhang Zhao
    • Mingjun Wu
    • Zhu Yang
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  • Published online on: May 24, 2013     https://doi.org/10.3892/or.2013.2493
  • Pages: 667-676
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Abstract

A high expression of O-glycosylated proteins is one of the prominent characteristics of ovarian carcinoma cells associated with cell migration, which would be attributed to the upregulated expression of glycosyltransferases. Therefore, elucidating glycosyltransferases and their substrates may improve our understanding of their roles in tumor metastasis. In the present study, we reported that knockdown of polypeptide N-acetylgalactosaminyltransferase 14 (GALNT14) by small interfering RNA significantly suppressed the cell migration and altered cellular morphology. Immunoprecipitation and western blot analyses indicated that GALNT14 contributed to the glycosylation of transmembrane mucin 13 (MUC13), which was significantly higher in ovarian cancer cells compared with the normal/benign ovary tissues. Furthermore, interleukin-8 (IL-8), which could regulate the migration ability of epithelial ovarian cancer (EOC) cells, had no remarkable effect on the expression of GALNT14 and the tumor-associated carbohydrate epitope Tn antigen. In addition, extracellular signal-regulated kinase 1/2 (ERK1/2) inhibitor modulated the expression levels of GALNT14. Our findings provide evidence that GALNT14 may contribute to ovarian carcinogenesis through aberrant glycosylation of MUC13, but not through the IL-8 pathway. These data provide novel insights into understanding the function of MUC13 on neoplasm metastasis and may aid in the development of new anticancer drugs for EOC.
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August 2013
Volume 30 Issue 2

Print ISSN: 1021-335X
Online ISSN:1791-2431

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Spandidos Publications style
Wang R, Yu C, Zhao D, Wu M and Yang Z: The mucin-type glycosylating enzyme polypeptide N-acetylgalactosaminyltransferase 14 promotes the migration of ovarian cancer by modifying mucin 13. Oncol Rep 30: 667-676, 2013
APA
Wang, R., Yu, C., Zhao, D., Wu, M., & Yang, Z. (2013). The mucin-type glycosylating enzyme polypeptide N-acetylgalactosaminyltransferase 14 promotes the migration of ovarian cancer by modifying mucin 13. Oncology Reports, 30, 667-676. https://doi.org/10.3892/or.2013.2493
MLA
Wang, R., Yu, C., Zhao, D., Wu, M., Yang, Z."The mucin-type glycosylating enzyme polypeptide N-acetylgalactosaminyltransferase 14 promotes the migration of ovarian cancer by modifying mucin 13". Oncology Reports 30.2 (2013): 667-676.
Chicago
Wang, R., Yu, C., Zhao, D., Wu, M., Yang, Z."The mucin-type glycosylating enzyme polypeptide N-acetylgalactosaminyltransferase 14 promotes the migration of ovarian cancer by modifying mucin 13". Oncology Reports 30, no. 2 (2013): 667-676. https://doi.org/10.3892/or.2013.2493