ATP Binding is Essential for VEGF-A165 to Induce Cell Growth
Author Information
Author(s): Ronald E. Gast, Simone König, Karsten Rose, Katja B. Ferenz, Josef Krieglstein
Primary Institution: Institut für Pharmazeutische und Medizinische Chemie, University of Münster, Germany
Hypothesis
Is ATP binding essential for the bioactivity of VEGF-A165?
Conclusion
The study concludes that the proliferation of endothelial cells is induced by a VEGF-A165-ATP complex, rather than VEGF-A165 alone.
Supporting Evidence
- ATP binding induces a conformational change in VEGF-A165.
- Nanomolar levels of ATP are required for VEGF-A165-induced proliferation of HUVECs.
- Alkaline phosphatase treatment reduced ATP levels and inhibited cell proliferation.
Takeaway
The study found that VEGF-A165 needs ATP to help cells grow, like how plants need water to grow.
Methodology
The study used radiolabeling, mass spectrometry, and cell proliferation assays to investigate the role of ATP in VEGF-A165 bioactivity.
Limitations
The study does not explore the exact binding site of ATP on VEGF-A165 or the effects of other potential confounding factors.
Participant Demographics
Human umbilical vein endothelial cells (HUVECs) were used in the experiments.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
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