Electroconvulsive seizures stimulate the vegf pathway via mTORC1

Area of Science:

• Neuroscience
• Molecular Biology
• Pharmacology

Background:

• Electroconvulsive treatment (ECT) is a highly effective depression therapy.
• Electroconvulsive seizures (ECS) stimulate hippocampal cell proliferation, but underlying mechanisms are unclear.
• Neurotrophic factors, like vascular endothelial growth factor (VEGF), are implicated in depression and ECS effects.

Purpose of the Study:

• To investigate the impact of ECS on VEGF, its receptors, and mTORC1/mTORC2 signaling in rat brain.
• To elucidate the molecular pathways mediating the cellular responses to ECS.

Main Methods:

• Male Sprague-Dawley rats were subjected to sham, acute, or repeated ECS.
• Messenger RNA (mRNA) levels of VEGF, VEGFR2, mTORC1, and mTORC2 components were quantified using real-time qPCR in the frontal cortex and hippocampus.

Main Results:

• Repeated ECS significantly affected the expression of VEGF, VEGFR2, and components of mTORC1.
• These changes were observed in both the frontal cortex and hippocampus.

Conclusions:

• The findings suggest that repeated ECS influences VEGF expression through mTORC1 signaling.
• VEGF mediation via mTORC1 is crucial for the therapeutic effects of ECS.