Bradykinin and Arachidonate Release in Endothelial Cells
Author Information
Author(s): D. Ricupero, L. Taylor, A. Tlucko, P. Navarro, P. Polgar
Primary Institution: Boston University School of Medicine
Hypothesis
The study investigates the regulatory mechanisms of bradykinin-activated release of arachidonate and synthesis of prostaglandin and platelet activating factor in bovine pulmonary artery endothelial cells.
Conclusion
The results indicate that G-proteins play a significant role in the binding of bradykinin to endothelial cells and its activation of arachidonate release.
Supporting Evidence
- GTP binding proteins are involved in the binding of bradykinin to endothelial cells.
- Bradykinin-induced release of arachidonate is sensitive to pertussis toxin.
- Phorbol 12-myristate 13-acetate enhances bradykinin-activated release of arachidonate.
Takeaway
When a substance called bradykinin interacts with certain cells, it helps release a fatty acid that is important for inflammation. This process is influenced by proteins that help transmit signals inside the cells.
Methodology
Endothelial cells were isolated and treated with bradykinin and other agents to study the release of arachidonate and synthesis of prostaglandin and platelet activating factor.
Participant Demographics
Bovine pulmonary artery endothelial cells were used in the study.
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