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Related Experiment Video

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Isolation of Preadipocytes from Broiler Chick Embryos
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Technical note: an optimized method to isolate, purify, and differentiate satellite cells from broiler chicks.

Usuk Jung1, Minjeong Kim1, Kamille Piacquadio1

  • 1Department of Animal Science, University of Tennessee, Knoxville, TN 37996, USA.

Journal of Animal Science
|October 22, 2022
PubMed
Summary

Researchers optimized a method to isolate and purify muscle satellite cells (SC) from young broiler chicks. This technique ensures high purity and myogenic potential for studying muscle growth and regeneration in poultry.

Keywords:
breast musclebroilerpreplatingprimary cell isolationsatellite cells

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Area of Science:

  • Animal Science
  • Cell Biology
  • Developmental Biology

Background:

  • Satellite cells (SC) are crucial muscle stem cells for growth, repair, and regeneration in poultry.
  • The Pectoralis major muscle of young broiler chicks is a valuable source for SC research.
  • Existing methods may lack the purity needed for sensitive molecular analyses like RNAseq.

Purpose of the Study:

  • To optimize a method for efficient isolation, purification, and differentiation of SC from young broiler chicks.
  • To ensure the purity and myogenic potential of isolated SC for downstream applications.
  • To facilitate research on factors influencing muscle development in broilers.

Main Methods:

  • Optimized isolation and purification of SC from Pectoralis major muscle of 5-day-old broiler chicks.
  • Tested various serum types, concentrations, and chicken embryo extract for optimal SC culture and differentiation.
  • Validated SC purity using Pax7+ cell counting and assessed differentiation into myotubes.

Main Results:

  • Achieved a highly pure SC population (94.6 ± 2.11% Pax7+) with high viability and yield.
  • Confirmed the capacity of isolated SC to differentiate into multinucleated myotubes.
  • Maintained SC enrichment, purity, and myogenic capacity through multiple passages and cryopreservation.

Conclusions:

  • Developed a simplified, efficient method for isolating and maintaining pure SC from broiler chicks.
  • The optimized protocol supports downstream applications, including sensitive molecular analyses.
  • This method enhances the study of muscle growth and regeneration influenced by various physiological cues in broilers.