DHEA Interacts with NGF Receptors to Prevent Neuronal Death
Author Information
Author(s): Lazaridis Iakovos, Charalampopoulos Ioannis, Alexaki Vassilia-Ismini, Avlonitis Nicolaos, Pediaditakis Iosif, Efstathopoulos Paschalis, Calogeropoulou Theodora, Castanas Elias, Gravanis Achille
Primary Institution: Department of Pharmacology, School of Medicine, University of Crete, Heraklion, Greece
Hypothesis
DHEA serves as a neurotrophic factor by interacting with NGF receptors.
Conclusion
DHEA binds to NGF receptors and prevents neuronal apoptosis, acting as a neuroprotective agent.
Supporting Evidence
- DHEA's anti-apoptotic effects were reversed by siRNA against TrkA.
- DHEA bound to membranes isolated from HEK293 cells transfected with TrkA and p75NTR receptors.
- DHEA induced TrkA phosphorylation and NGF receptor-mediated signaling.
- DHEA rescued TrkA receptor positive sensory neurons from apoptosis in NGF null embryos.
Takeaway
DHEA is a substance that helps brain cells stay alive by working with special receptors. When these receptors are blocked, DHEA can't do its job.
Methodology
The study used RNA interference, binding assays, and cell culture experiments to assess the effects of DHEA on neuronal apoptosis.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
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