Comparative evaluation of various human feeders for prolonged undifferentiated growth of human embryonic stem cells

Mark Richards1, Shawna Tan, Chui-Yee Fong

  • 1Department of Obstetrics and Gynecology, National University of Singapore, Kent Ridge, Singapore.

Stem Cells (Dayton, Ohio)
|September 12, 2003
PubMed

Insights

Human embryonic stem cells (hESCs) can be cultured without animal products using human adult skin fibroblasts as feeders. This xeno-free method supports prolonged undifferentiated growth, enhancing safety for clinical applications.

Area of Science:

  • Stem Cell Biology
  • Regenerative Medicine
  • Cell Culture Technology

Background:

  • Human embryonic stem cells (hESCs) are typically cultured on animal-derived murine embryonic fibroblasts (MEFs).
  • The use of animal-derived components poses a risk of contamination with infectious agents, limiting clinical applications.
  • Previous research demonstrated xeno-free hESC derivation using human fetal muscle feeders.

Purpose of the Study:

  • To comparatively evaluate human adult, fetal, and neonatal feeders for supporting hESC culture.
  • To identify optimal human feeder cell types for xeno-free hESC propagation.
  • To assess the suitability of adult skin fibroblasts for long-term, undifferentiated hESC growth.

Main Methods:

  • Culturing hESCs on a panel of 11 different human feeder cell lines (adult, fetal, neonatal).
  • Assessing feeder support based on hESC growth, morphology, and pluripotency.
  • Ranking feeders as supportive or non-supportive for hESC culture.
  • Serial propagation of hESCs for over 30 passages on selected feeders.

Main Results:

  • Identified specific human adult skin fibroblast lines that effectively support prolonged undifferentiated hESC growth.
  • Demonstrated that hESCs cultured on adult skin feeders maintain their characteristic morphology and pluripotency.
  • Showcased significant differences in feeder support capabilities among various human cell types and sources.
  • Highlighted the convenience and efficacy of using adult skin fibroblasts derived from easily obtainable biopsies.

Conclusions:

  • Human adult skin fibroblasts provide a robust and xeno-free feeder system for hESC culture.
  • This approach mitigates risks associated with animal-derived materials, paving the way for safer clinical translation.
  • Adult skin fibroblasts represent a practical and effective alternative to MEFs for maintaining hESC pluripotency and proliferation.

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