| Hippocampal Astrocytes | |
|---|---|
| Allen Atlas ID | CS202210140_3789 |
| Lineage | Glia > Astrocyte > Protoplasmic > Hippocampal |
| Markers | GFAP, ALDH1L1, S100B, AQP4, GLT1 (SLC1A2) |
| Brain Regions | Hippocampus (CA1-CA3, Dentate gyrus) |
| Disease Vulnerability | Alzheimer's Disease, Temporal Lobe Epilepsy, Hippocampal sclerosis |
Hippocampal Astrocytes plays an important role in the study of neurodegenerative diseases. This page provides comprehensive information about this topic, including its mechanisms, significance in disease processes, and therapeutic implications.
Hippocampal astrocytes are specialized glial cells that provide essential metabolic, structural, and regulatory support to neurons in the hippocampal formation [1]. These protoplasmic astrocytes occupy the hippocampal neuropil, where they ensheath synapses, regulate extracellular ion and neurotransmitter levels, and support neuronal function [2]. Their position in the hippocampus—a brain region critical for memory and vulnerable in Alzheimer's disease—makes hippocampal astrocytes key players in neurodegeneration.
Hippocampal astrocytes are integral components of the "tripartite synapse," where they sense synaptic activity and release gliotransmitters to modulate synaptic transmission.
Hippocampal astrocytes are distributed throughout:
These astrocytes exhibit characteristic features:
Hippocampal astrocytes modulate synaptic transmission [3]:
Astrocytes provide energy substrate:
Hippocampal astrocytes show significant changes in AD [4][5]:
Astrocyte dysfunction in TLE:
Hippocampal Astrocytes plays an important role in the study of neurodegenerative diseases. This page provides comprehensive information about this topic, including its mechanisms, significance in disease processes, and therapeutic implications.
The study of Hippocampal Astrocytes has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
Tripartite synapse: astrocytes in synaptic transmission. Trends Neurosci, 2018.
Astrocyte function in hippocampal circuits. Neuroscience, 2020.
Reactive astrocytes in Alzheimer's disease. Acta Neuropathol, 2019.
Astrocytes in temporal lobe epilepsy. Epilepsy Res, 2020.
Neurovascular coupling and astrocyte dysfunction. Neuropharmacology, 2019.