Comparison of Cellular Transforming Activity of OCT4, NANOG, and SOX2 in Immortalized Astrocytes

Sunyoung Seo, Hee Young Jeon, Hyunggee Kim

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Embryonic stem cell factors - OCT4, NANOG, and SOX2 - contribute to the maintenance of stem cell properties and malignant progression in various cancers, including glioblastoma. Although functional roles of each of these genes are well documented in stem cell and cancer biology, no study has directly compared their cellular transforming activity under same experimental conditions. In this study, we compared the cellular transforming activity of OCT4, NANOG, and SOX2 using human immortalized astrocytes cultured under serum-free stem cell culture conditions. We found that SOX2 exhibited the strongest transforming activities, such as cell proliferation, neurosphere formation, resistance to cytotoxic drug, and cell migration/invasion, which may be associated with the activation of the nuclear factor kappa B (NFκB) signaling pathway. Thus, OCT4, NANOG, and SOX2, known to be frequently activated in various cancers and cancer stem cells, may play a distinct role in the regulation of cellular transformation.

Original languageEnglish
Pages (from-to)1000-1009
Number of pages10
JournalDNA and Cell Biology
Issue number11
Publication statusPublished - 2017 Nov

Bibliographical note

Funding Information:
The authors are grateful to all members of the Cell Growth Regulation Laboratory for their helpful discussion and technical assistance. This study was funded by the National Research Foundation (NRF), the Ministry of Science, ICT, and Future Planning (2015R1A5A1009024), and by the ‘‘Next-Generation BioGreen21 Program (No. PJ01107701),’’ Rural Developmental Administration (RDA), Republic of Korea.

Publisher Copyright:
© Copyright 2017, Mary Ann Liebert, Inc..


  • NFκB
  • OCT4
  • SOX2
  • astrocytes
  • cellular transformation

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics
  • Cell Biology


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