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Transcriptional pathways in second heart field development.

Brian L Black¹

¹Cardiovascular Research Institute and Department of Biochemistry and Biophysics, Mail Code 2240, University of California, San Francisco, California 94158-2517, USA. brian.black@ucsf.edu

Seminars in Cell & Developmental Biology

|February 6, 2007

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The second heart field (SHF) contributes to the right ventricle and outflow tract, distinct from the first heart field. This review explores the molecular and transcriptional pathways governing SHF development and integration into the heart.

Area of Science:

Developmental Biology
Cardiovascular Science
Molecular Biology

Background:

The heart forms early in vertebrate development, with distinct origins for its chambers.
The first heart field (FHF) forms the left ventricle, while the second heart field (SHF) contributes to the right ventricle and outflow tract.

Purpose of the Study:

To review the contributions of the SHF to heart development.
To summarize current understanding of transcriptional pathways in SHF development.

Main Methods:

Literature review of developmental biology studies.
Analysis of molecular and genetic data on heart field development.

Main Results:

The SHF is crucial for forming specific heart structures.

Related Experiment Videos

Unique molecular programs regulate SHF development and integration with the FHF.

Conclusions:

Understanding SHF development is key to comprehending overall heart formation.
Transcriptional pathways are critical for SHF lineage specification and differentiation.