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Clinical & Experimental Metastasis

, Volume 33, Issue 5, pp 487–496 | Cite as

Effect of CD133 overexpression on the epithelial-to-mesenchymal transition in oral cancer cell lines

  • YeonHee Moon
  • Donghwi Kim
  • HongMoon Sohn
  • Wonbong Lim
Research Paper

Abstract

Oral squamous cell carcinoma (OSCC) is one of the most common cancers in the world. In OSCC, CD133 promotes tumor invasion and metastasis by inducing the epithelial-to-mesenchymal transition (EMT). A small subset of cancer cells known as cancer stem cells (CSCs) are thought to give rise to differentiated tumor cells and to predict tumor recurrence and metastases, i.e., CSCs may be metastatic precursors. In this study, we show that ectopic overexpression of CD133 in OSCC cell lines KB, YD9, and YD10B cells significantly promotes the EMT and acquisition of stemness properties. CSC properties were analyzed by colony-formation assay and measurement of OCT4, SOX2, and NANOG expression, and the EMT was monitored by cell migration, a cell invasion assay, and analysis of E-cadherin, N-cadherin, and vimentin expression. CD133 overexpression led to formation of irregular spheroid colonies consistent with a stem cell phenotype and increased the expression of OCT4, SOX2, NANOG, N-cadherin, and vimentin. Taken together, these findings show that elevated levels of CD133 lead to OSCC invasiveness and metastasis, associated with the upregulation of EMT and stemness markers.

Keywords

CD133 Cancer stem cell Carcinogenesis Epithelial-to-mesenchymal transition 

Notes

Acknowledgments

This study was supported by research funds from Chosun University (2014). The authors declare that they have no conflicts of interest.

Author contributions

All authors have read and approved the final submitted manuscript.

Supplementary material

10585_2016_9793_MOESM1_ESM.doc (36 kb)
Supplementary material 1 (DOC 36 kb)

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Copyright information

© Springer Science+Business Media Dordrecht 2016

Authors and Affiliations

  • YeonHee Moon
    • 1
  • Donghwi Kim
    • 2
  • HongMoon Sohn
    • 2
  • Wonbong Lim
    • 2
    • 3
  1. 1.Department of Dental HygieneChodang UniversityMuan CountySouth Korea
  2. 2.Department of Orthopedic SurgeryChosun University HospitalGwangjuSouth Korea
  3. 3.Department of Premedical Science, College of MedicineChosun UniversityGwangjuSouth Korea

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