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Vascular endothelial growth factor. Regulation by cell differentiation and activated second messenger pathways
K P Claffey1, W O Wilkison, B M Spiegelman
1Dana-Farber Cancer Institute, Boston, Massachusetts.
The Journal of Biological Chemistry
|August 15, 1992
Summary
Vascular endothelial growth factor (VEGF) gene expression is linked to cellular differentiation. Its levels change significantly during cell development, particularly in models of adipose and myogenic differentiation.
Area of Science:
- Molecular Biology
- Cell Biology
- Developmental Biology
Background:
- Vascular endothelial growth factor (VEGF) is a key angiogenic polypeptide.
- Blood vessel growth is crucial for cell and tissue development.
- VEGF's role in differentiation requires further investigation.
Purpose of the Study:
- To examine VEGF gene expression in various mouse tissues.
- To investigate VEGF regulation during cellular differentiation.
- To understand VEGF's role in transformed cell lines.
Main Methods:
- Utilized a cloned murine VEGF cDNA probe for mRNA detection.
- Analyzed VEGF expression in adult mouse tissues.
- Studied VEGF regulation in 3T3-adipose, C2C12 myogenic, and PC12 cell differentiation models.
Main Results:
- VEGF mRNA is expressed at low levels in most adult mouse tissues.
- VEGF expression is significantly induced during 3T3-adipose and C2C12 myogenic differentiation.
- VEGF mRNA levels are markedly regulated in PC12 cells, decreasing upon differentiation.
Conclusions:
- VEGF mRNA levels are closely associated with cellular differentiation processes.
- VEGF expression is specifically regulated in transformed cell lines, potentially via second messenger pathways.
- Findings highlight the dynamic regulation of this angiogenic factor during cell development.
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