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Related Experiment Video

Updated: Feb 10, 2026

Preparation and Morphological Analysis of Chick Cranial Neural Crest Cell Cultures
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Snail2/Slug cooperates with Polycomb repressive complex 2 (PRC2) to regulate neural crest development.

Chih-Liang Tien1, Amanda Jones2, Hengbin Wang2

  • 1Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, 1720 2nd Avenue S., Birmingham, AL 35294, USA.

Development (Cambridge, England)
|January 25, 2015
PubMed
Summary

Polycomb repressive complex 2 (PRC2) and Snail2 cooperate to control neural crest development by regulating gene expression. This epigenetic mechanism is crucial for neural crest cell specification and migration in Xenopus.

Keywords:
EZH2Neural crestPolycomb repressive complex 2 (PRC2)Snail2/SlugXenopus

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Area of Science:

  • Developmental biology
  • Epigenetics
  • Cell biology

Background:

  • Neural crest cells are vital for vertebrate development, differentiating into diverse cell types.
  • While growth factors and gene networks are known regulators, epigenetic control of neural crest development is less understood.

Purpose of the Study:

  • To investigate the role of epigenetic mechanisms, specifically Polycomb repressive complex 2 (PRC2), in neural crest development.
  • To elucidate the interaction between PRC2 and the transcription factor Snail2 in Xenopus.

Main Methods:

  • Studied the expression of PRC2 core components (Eed, Ezh2, Suz12) in neural crest cells.
  • Utilized knockdown of Ezh2 (catalytic subunit of PRC2) to assess its impact.
  • Investigated the interaction between EZH2 and Snail2.
  • Performed chromatin immunoprecipitation to analyze gene regulation at the promoter of Snail2 target genes.

Main Results:

  • PRC2 components are expressed in neural crest cells and are essential for neural crest marker expression.
  • Ezh2 knockdown led to defects in neural crest specification, migration, and craniofacial cartilage formation.
  • Snail2 directly interacts with EZH2, and Snail2's function in expanding neural crest domains requires Ezh2.
  • Snail2 influences EZH2 occupancy and H3K27 trimethylation at the E-cadherin promoter.

Conclusions:

  • Snail2 collaborates with EZH2 and PRC2 to regulate gene expression critical for neural crest specification and migration.
  • Epigenetic regulation by PRC2, in conjunction with Snail2, plays a significant role in vertebrate embryogenesis.