Cardiac Neural Crest

Hiroyuki Yamagishi1

  • 1Division of Pediatric Cardiology, Department of Pediatrics, Keio University School of Medicine, Shinjuku-ku, Tokyo 160-8582, Japan.

Insights

Cardiac neural crest (CNC) cells are crucial for heart development, contributing to outflow tract septation. Recent research highlights their signaling with second heart field cells, offering insights into congenital heart diseases.

Area of Science:

  • Developmental biology
  • Cardiovascular research
  • Molecular genetics

Background:

  • Cardiac neural crest (CNC) cells originate from the dorsal neural tube.
  • CNC cells are vital for pharyngeal arch artery remodeling and cardiac outflow tract (OFT) septation.
  • Molecular pathways governing CNC induction, specification, delamination, and migration are complex.

Purpose of the Study:

  • To explore the mechanisms of heart development and disease involving CNC cells.
  • To investigate the role of reciprocal signaling between CNC and second heart field (SHF) cells.
  • To gain new insights into congenital heart diseases (CHDs) and human syndromes related to OFT and aortic arch (AA) development.

Main Methods:

  • Chick ablation models.
  • Molecular biology studies.
  • Analysis of reciprocal signaling pathways.

Main Results:

  • CNC cells contribute significantly to OFT septation and AA remodeling.
  • Reciprocal signaling between CNC and SHF cells is essential for OFT myocardium development.
  • These interactions provide a basis for understanding CHDs.

Conclusions:

  • Understanding CNC cell behavior and their interactions with SHF cells is key to deciphering heart development.
  • This research offers novel perspectives on the molecular underpinnings of CHDs and associated syndromes.