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Phenotyping cardiomyopathy in adult zebrafish

Alexey V Dvornikov1, Pieter P de Tombe2, Xiaolei Xu1

  • 1Department of Biochemistry and Molecular Biology, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA.

Progress in Biophysics and Molecular Biology
|June 10, 2018
PubMed

Insights

Zebrafish models offer new ways to study human cardiomyopathies like hypertrophic cardiomyopathy (HCM) and dilated cardiomyopathy (DCM). Better phenotyping tools are crucial for distinguishing these heart conditions in zebrafish.

Area of Science:

  • Cardiovascular Research
  • Zebrafish Models
  • Human Disease Modeling

Background:

  • Hypertrophic cardiomyopathy (HCM) involves increased myofilament Ca2+ sensitivity, excessive contractility, and impaired relaxation.
  • Dilated cardiomyopathy (DCM) is characterized by insufficient sarcomere contractility and reduced cardiac pump function, leading to heart failure.
  • Zebrafish are increasingly used as a model organism for human cardiomyopathies due to their suitability for high-throughput screening.

Purpose of the Study:

  • To review existing cardiomyopathy models in adult zebrafish.
  • To discuss available morphologic and functional phenotyping methods for zebrafish hearts.
  • To summarize the current understanding of HCM and DCM in adult zebrafish.

Main Methods:

  • Review of existing literature on zebrafish cardiomyopathy models.
  • Analysis of morphologic and functional phenotyping techniques.
  • Synthesis of current knowledge on HCM and DCM in zebrafish.

Main Results:

  • Zebrafish models facilitate the discovery of novel genetic factors for cardiomyopathies.
  • High-throughput screening in zebrafish aids in developing new therapeutic strategies.
  • Improved phenotyping tools are necessary to differentiate between HCM and DCM in small zebrafish hearts.

Conclusions:

  • Zebrafish represent a valuable model for studying human cardiomyopathies.
  • Further development of phenotyping methods is essential for precise diagnosis of cardiomyopathy subtypes in zebrafish.
  • This review provides a foundation for future research in zebrafish-based cardiomyopathy studies.

Keywords:
Cardiac remodelingCardiomyopathySarcomereZebrafish

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