RECLUSIVE CHANDELIERS: FUNCTIONAL ISOLATION OF DENTATE AXO-AXONIC CELLS AFTER EXPERIMENTAL STATUS EPILEPTICUS
Archana Proddutur1,2, Susan Nguyen2, Chia-Wei Yeh2
1Department of Pharmacology, Physiology and Neuroscience, Rutgers New Jersey Medical School, Newark, New Jersey 07103.
Biorxiv : the Preprint Server for Biology
|October 24, 2023
Summary
Early epilepsy disrupts specialized brain cells called axo-axonic cells (AACs) in the hippocampus. This disruption impairs their ability to control neural activity, potentially contributing to seizure development.
Area of Science:
- Neuroscience
- Epilepsy Research
- Cellular Physiology
Background:
- Axo-axonic cells (AACs) are crucial for regulating neuronal network output and synchrony via specialized inhibition at the axon initial segment (AIS).
- Hippocampal dentate AACs are known to undergo structural changes during epilepsy, yet their physiological function remains understudied.
Conclusions:
- Early post-SE physiological changes in dentate AACs undermine their inhibitory control over dentate granule cells.
- This compromised inhibition may contribute to increased dentate throughput and epileptogenesis.
- Understanding these early changes is critical for developing therapeutic strategies against epilepsy.
Keywords:
Chandelier cellGABA reversaldentate gyrusepileptogenesisgranule cellinhibitionseizuresynapse
