Aberrant sialylation and fucosylation of intracellular proteins in cervical tissue are critical markers of cervical carcinogenesis

  • Authors:
    • Hyoung Jin Kim
    • Seung Cheol Kim
    • Woong Ju
    • Yun Hwan Kim
    • Sun Young Yin
    • Hong-Jin Kim
  • View Affiliations

  • Published online on: December 20, 2013     https://doi.org/10.3892/or.2013.2938
  • Pages: 1417-1422
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Abstract

Numerous studies have suggested that increased sialylation and fucosylation levels are signs of cancer progression. The majority of studies have focused on cell surface and bloodstream glycosylation changes associated with cancer progression, while little attention has been paid to changes in the glycosylation of cytosolic proteins. We compared the mannosylation, sialylation and fucosylation levels of cytosolic proteins obtained from human cervical tissues without neoplastic lesions vs. with cancer, using lectin blot and enzyme-linked lectin assay (ELLA) systems. There were no quantitative differences in mannosylation levels between the cytosolic proteins of normal and cancer tissues. However, we found markedly reduced sialylation (P<0.001) and fucosylation (P<0.01) in the proteins of cancer tissues. The ELLA system for detecting sialylation had extremely high sensitivity (91-100%) and specificity (82-100%) in distinguishing normal and cancer tissues. Thus, the changes in the glycosylation of cytosolic proteins during carcinogenesis of the cervix are quite different from previous observations concerning glycoconjugates in the bloodstream or on the cell surface. We suggest that changes in the glycosylation of intracellular proteins may be useful markers of the development of cervical cancer.
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2014-March
Volume 31 Issue 3

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

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Spandidos Publications style
Kim HJ, Kim SC, Ju W, Kim YH, Yin SY and Kim H: Aberrant sialylation and fucosylation of intracellular proteins in cervical tissue are critical markers of cervical carcinogenesis. Oncol Rep 31: 1417-1422, 2014
APA
Kim, H.J., Kim, S.C., Ju, W., Kim, Y.H., Yin, S.Y., & Kim, H. (2014). Aberrant sialylation and fucosylation of intracellular proteins in cervical tissue are critical markers of cervical carcinogenesis. Oncology Reports, 31, 1417-1422. https://doi.org/10.3892/or.2013.2938
MLA
Kim, H. J., Kim, S. C., Ju, W., Kim, Y. H., Yin, S. Y., Kim, H."Aberrant sialylation and fucosylation of intracellular proteins in cervical tissue are critical markers of cervical carcinogenesis". Oncology Reports 31.3 (2014): 1417-1422.
Chicago
Kim, H. J., Kim, S. C., Ju, W., Kim, Y. H., Yin, S. Y., Kim, H."Aberrant sialylation and fucosylation of intracellular proteins in cervical tissue are critical markers of cervical carcinogenesis". Oncology Reports 31, no. 3 (2014): 1417-1422. https://doi.org/10.3892/or.2013.2938