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Cardiomyopathy II: Dilated Cardiomyopathy01:30

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Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
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En Face Endocardial Cushion Preparation for Planar Morphogenesis Analysis in Mouse Embryos
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Cfdp1 Is Essential for Cardiac Development and Function.

Panagiota Giardoglou1,2, Panos Deloukas3, George Dedoussis2

  • 1Zebrafish Disease Model Laboratory, Center for Clinical, Experimental Surgery & Translational Research, Biomedical Research Foundation, Academy of Athens, 11527 Athens, Greece.

Cells
|August 11, 2023
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Summary
This summary is machine-generated.

Craniofacial Development Protein 1 (CFDP1) is essential for heart development. Loss of CFDP1 in zebrafish causes lethal cardiac arrhythmias, revealing its role in cardiovascular health and potential links to coronary artery disease risk.

Keywords:
arrythmiasbradycardiacardiovascular developmentcfdp1coronary artery diseasezebrafish models of human disease

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Area of Science:

  • Cardiovascular Biology
  • Developmental Biology
  • Genetics

Background:

  • Cardiovascular diseases (CVDs) are a leading global cause of death, influenced by genetic and environmental factors.
  • Identifying genes like Craniofacial Development Protein 1 (CFDP1) is crucial for understanding CVDs, particularly Coronary Artery Disease (CAD).
  • The specific role of CFDP1 in cardiovascular development remains largely unknown.

Purpose of the Study:

  • To investigate the function of cfdp1 in embryonic heart development using a zebrafish model.
  • To elucidate the molecular mechanisms underlying CFDP1's role in cardiac physiology.

Main Methods:

  • Utilized zebrafish for its genomic homology and physiological similarity to humans in cardiac development.
  • Employed morpholino knockdown and generated a cfdp1 knockout zebrafish line (cfdp1-/-).
  • Analyzed cardiac function, gene expression (Wnt and Notch signaling), and embryonic lethality.

Main Results:

  • cfdp1 is expressed during zebrafish embryonic development.
  • cfdp1 deficiency resulted in severe cardiac arrhythmias, defective performance, and embryonic lethality.
  • Abrogation of cfdp1 led to Wnt signaling downregulation during heart valve development, without impacting Notch signaling.

Conclusions:

  • cfdp1 is essential for normal cardiac development and function, with its absence causing early lethality.
  • The zebrafish model provides a tool to study CFDP1's role in cardiac physiology.
  • Observed bradycardia and arrhythmias in cfdp1 mutants suggest potential clinical relevance for human CAD risk associated with CFDP1 mutations.