Efficient culture system for human embryonic stem cells using autologous human embryonic stem cell-derived feeder cells

Seung Jun Yoo, Byung Sun Yoon, Jin Mee Kim, Ji Min Song, Sung Il Roh, Seungkwon You, Hyun Soo Yoon

Research output: Contribution to journalArticle

59 Citations (Scopus)

Abstract

Human embryonic stem cells (hESCs) need feeder cells for their maintenance in an undifferentiated state. In conventional culture systems, mouse embryonic fibroblasts (MEFs) serve as feeder cells to maintain hESCs. However, the use of MEFs elevates the risk of transmitting mouse pathogens and thus limits the potential of hESCs in cell replacement therapy. Consequently, the use of human feeder cells would be an important step forward in this in vitro technology. To address this issue, we used fibroblast-like cells differentiated from the Miz-hES6 hESC line (DiffMiz-hES6) as feeder cells to support the in vitro growth of three hESC lines. Immunofluorescence microscopy and reverse transcription-PCR assessing the expression of undifferentiated hESC markers revealed all three hESC lines were maintained in an undifferentiated state. In vitro proliferation proceeded as efficiently as when the hESCs were cultured on MEFS. Moreover, karyotype analysis revealed the chromosomal normality of the hESC lines and the DiffMiz-hES6 feeders themselves after even 50 passages. Furthermore, the hESC lines maintained their pluripotency since they remained capable of forming embryoid bodies (EBs) in vitro. Thus, hESC-derived fibroblast-like cells successfully support in vitro hESC propagation.

Original languageEnglish
Pages (from-to)399-407
Number of pages9
JournalExperimental and Molecular Medicine
Volume37
Issue number5
DOIs
Publication statusPublished - 2005 Oct 31

Keywords

  • Cell culture techniques
  • Humans
  • Stem cell transplantation
  • Stem cells

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Medicine
  • Molecular Biology
  • Clinical Biochemistry

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