The chemokine Sdf-1 and its receptor Cxcr4 are required for formation of muscle in zebrafish
2007
Role of Sdf-1 and Cxcr4 in Zebrafish Muscle Development
publication
10 minutes
Evidence: moderate
Author Information
Author(s): Chong Shang-Wei, Nguyet Le-Minh, Jiang Yun-Jin, Korzh Vladimir
Primary Institution: Institute of Molecular and Cell Biology
Hypothesis
Deficiency of Cxcr4 or Sdf1 might affect early myogenesis.
Conclusion
The study reveals that Cxcr4a and Sdf1a are essential for the differentiation of fast myofibers in zebrafish.
Supporting Evidence
- Disrupting the Sdf1-Cxcr4 signaling reduced expression of myogenic regulatory factors.
- Knockdown of Sdf1a caused similar effects to Cxcr4a knockdown in muscle development.
- Both cxcr4a and sdf1a morphants showed reduced birefringency in myotomes.
Takeaway
Zebrafish need a special signal from Sdf1 to help their muscles grow properly, and without it, the muscles don't form right.
Methodology
The study involved morpholino injections to knock down gene expression and subsequent analysis of muscle development.
Limitations
The study may not account for potential compensatory mechanisms from related genes.
Digital Object Identifier (DOI)
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