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Antibiotics reduce the growth rate and differentiation of embryonic stem cell cultures

Shahar Cohen1, Ali Samadikuchaksaraei, Julia M Polak

  • 1Tissue Engineering and Regenerative Medicine Centre, Chelsea and Westminster Campus, Imperial College, London, UK.

Tissue Engineering
|August 8, 2006
PubMed

Insights

Routine antibiotics in embryonic stem cell (ESC) cultures negatively impact differentiation and growth. Avoiding antibiotics in ESC culture media can improve efficiency for tissue engineering applications.

Area of Science:

  • Stem cell biology
  • Tissue engineering
  • Cell culture technology

Background:

  • Embryonic stem cells (ESCs) show promise for tissue engineering.
  • Antibiotics are commonly used in ESC cultures to prevent contamination.
  • However, antibiotics can be cytotoxic and disrupt protein synthesis.

Purpose of the Study:

  • To investigate the impact of gentamicin and penicillin-streptomycin on murine ESC differentiation into type II pneumocytes.
  • To assess the effects of these antibiotics on cell growth and differentiation markers.

Main Methods:

  • Murine ESCs were differentiated into type II pneumocytes.
  • The expression of SPC mRNA, a marker for type II pneumocytes, was measured.
  • Growth rates and population doubling times of embryoid bodies were analyzed.

Main Results:

  • Antibiotics significantly reduced SPC mRNA expression by up to 60%.
  • Antibiotic treatment decreased embryoid body growth rate by up to 40%.
  • Population doubling time increased by up to 48% with antibiotic use.

Conclusions:

  • Routine antibiotic use in ESC cultures may hinder differentiation efficiency.
  • Antibiotics can adversely affect ESC growth and specific cell marker expression.
  • Avoiding antibiotics in ESC culture may enhance outcomes for tissue engineering.

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