How a specific molecule stimulates hormone release in adrenal cells
Author Information
Author(s): Tomé Ângelo R, Castro Enrique, Santos Rosa M, Rosário Luís M
Primary Institution: Center for Neurosciences and Cell Biology, University of Coimbra, Coimbra, Portugal
Hypothesis
Does 2-methylthioadenosine 5'-triphosphate (2-MeSATP) act as a specific P2X receptor agonist in bovine chromaffin cells?
Conclusion
2-MeSATP is a specific P2X purinoceptor agonist and a potent secretagogue in bovine chromaffin cells.
Supporting Evidence
- ATP raised the intracellular calcium concentration in about 50% of the cells.
- 2-MeSATP-induced secretion was strongly inhibited by Cd2+.
- 2-MeSATP was found to be a more potent agonist for purinergic receptors compared to ATP.
Takeaway
The study shows that a molecule called 2-MeSATP helps adrenal cells release hormones by letting calcium in, which is important for the process.
Methodology
Single cell calcium imaging techniques were used to assess the role of P2X and P2Y receptors on catecholamine secretion.
Participant Demographics
Bovine adrenal chromaffin cells were used in the study.
Statistical Information
P-Value
0.8
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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