Open Access

Inhibition of AGS human gastric cancer cell invasion and proliferation by Capsosiphon fulvescens glycoprotein

  • Authors:
    • Young‑Min Kim
    • In‑Hye Kim
    • Taek‑Jeong Nam
  • View Affiliations

  • Published online on: May 27, 2013     https://doi.org/10.3892/mmr.2013.1492
  • Pages: 11-16
  • Copyright: © Kim et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 3.0].

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Abstract

Seaweeds are increasingly being used as foodstuffs and therapeutics. Capsosiphon fulvescens (C. fulvescens) is a green sea alga which has demonstrated anti‑tumor activity in various cancer cell lines. In cancer cells, homeostasis is not maintained, enabling mutations to develop and growth to continue unchecked. Overexpression of matrix metalloproteinase (MMP) and tight junction (TJ) proteins is important for cancer cell proliferation, invasion and metastasis. In addition, these proteins are closely associated with cell membrane permeability. In the current study, C. fulvescens glycoprotein (Cf‑GP) was found to inhibit TJ proteins and invasion of AGS human gastric cancer cells. Cf‑GP‑mediated inhibition of cell proliferation and invasion was confirmed, as well as changes in TJ protein levels. In addition, MMP‑2 and ‑9 activities were inhibited, as indicated by increased transepithelial electrical resistance. Inhibition of MMP protein expression was also found to correlate with tissue inhibitor of metalloproteinase 1 and Cf‑GP treatment, as revealed by western blot analysis and RT‑PCR. In conclusion, these results indicate that Cf‑GP inhibits cancer cell invasion and therefore demonstrates a potential therapeutic strategy to decrease cancer metastasis.
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July 2013
Volume 8 Issue 1

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Kim YM, Kim IH and Nam TJ: Inhibition of AGS human gastric cancer cell invasion and proliferation by Capsosiphon fulvescens glycoprotein. Mol Med Rep 8: 11-16, 2013
APA
Kim, Y., Kim, I., & Nam, T. (2013). Inhibition of AGS human gastric cancer cell invasion and proliferation by Capsosiphon fulvescens glycoprotein. Molecular Medicine Reports, 8, 11-16. https://doi.org/10.3892/mmr.2013.1492
MLA
Kim, Y., Kim, I., Nam, T."Inhibition of AGS human gastric cancer cell invasion and proliferation by Capsosiphon fulvescens glycoprotein". Molecular Medicine Reports 8.1 (2013): 11-16.
Chicago
Kim, Y., Kim, I., Nam, T."Inhibition of AGS human gastric cancer cell invasion and proliferation by Capsosiphon fulvescens glycoprotein". Molecular Medicine Reports 8, no. 1 (2013): 11-16. https://doi.org/10.3892/mmr.2013.1492