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Seeking a regulatory roadmap for heart morphogenesis.

R P Harvey1

  • 1Victor Chang Cardiac Research Institute, St. Vincent's Hospital, Darlinghurst, Australia.

Seminars in Cell & Developmental Biology
|June 4, 1999
PubMed
Summary
This summary is machine-generated.

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Understanding heart development requires integrating molecular patterning and morphogenesis. New models suggest chamber specification relies on dorso-ventral and anterior-posterior information in the primary heart tube, moving beyond linear segment concepts.

Area of Science:

  • Developmental Biology
  • Molecular Cardiology
  • Genetics

Background:

  • Centuries of study have not yielded an integrated concept of cardiac molecular patterning and morphogenesis.
  • Numerous cardiac genes, animal models, and genetic tools highlight the urgent need for a new morphogenetic model.

Purpose of the Study:

  • To examine factors influencing the understanding of cardiac morphogenesis.
  • To discuss regulatory genes within an evolving morphogenetic model.

Main Methods:

  • Review of existing descriptive studies and molecular/anatomical evidence.
  • Analysis of regional gene expression patterns.
  • Examination of animal models of cardiac dysmorphogenesis.

Main Results:

Related Experiment Videos

  • Linear models of cardiac segmentation are insufficient.
  • Chamber specification likely involves interpretation of dorso-ventral and anterior-posterior patterning information in the primary heart tube.

Conclusions:

  • An integrated concept of cardiac morphogenesis is crucial.
  • Future models should incorporate multi-dimensional patterning information for accurate chamber specification.