Document Detail

Establishment of the mouse ventricular conduction system.
MedLine Citation:
PMID:  21385837     Owner:  NLM     Status:  Publisher    
The ventricular conduction system represents the electrical wiring responsible for the coordination of cardiac contraction. Defects in the circuit produce a delay or conduction block and induce cardiac arrhythmias. Understanding how this circuit forms and identification of the factors important for its development thus provide insights into the origin of cardiac arrhythmias. Recent advances, using genetically modified mouse models, have contributed to understanding how the ventricular conduction system is established during heart development. Transgenic mice carrying different reporter genes have highlighted the conservation of the anatomy and development of the ventricular conduction system between mouse and man. Lineage tracing and retrospective clonal analysis have established the myogenic origin of the ventricular conduction system and determined properties of conductive progenitor cells. Finally, gene knockout models reproducing human cardiac defects, have led to the identification of transcription factors important for the development of the ventricular conduction system. These transcription factors operate at the levels of both conduction system morphogenesis and differentiation by controlling the expression of genes responsible of the electrical activity of the heart. In summary, defects in the ventricular conduction system are a major cause of arrhythmias and deciphering the molecular pathways responsible for conduction system morphogenesis and the differentiation of conductive myocytes furthers our understanding of the mechanisms underlying heart disease.
Lucile Miquerol; Sabrina Beyer; Robert G Kelly
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-8
Journal Detail:
Title:  Cardiovascular research     Volume:  -     ISSN:  1755-3245     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-3-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0077427     Medline TA:  Cardiovasc Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Developmental Biology Institute of Marseilles - Luminy , CNRS UMR6216, Université de la Méditerranée, Campus de Luminy, case 907, 13288 Marseille cedex 9, France.
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