Astrocytes and Epilepsy

Neurochem Res. 2021 Oct;46(10):2687-2695. doi: 10.1007/s11064-021-03236-x. Epub 2021 Mar 4.

Abstract

Changes in astrocyte channels, transporters, and metabolism play a critical role in seizure generation and epilepsy. In particular, alterations in astrocyte potassium, glutamate, water and adenosine homeostasis and gap junctional coupling have all been associated with hyperexcitability and epileptogenesis (largely in temporal lobe epilepsy). Distinct astrocytic changes have also been identified in other types of epilepsy, such as tuberous sclerosis, tumor-associated epilepsy and post-traumatic epilepsy. Together, the emerging literature on astrocytes and epilepsy provides powerful rationale for distinct new therapeutic targets that are astrocyte-specific.

Keywords: Adenosine; Astrocyte; Epilepsy; Gap junction; Glutamate; Potassium.

MeSH terms

  • Adenosine / metabolism
  • Amino Acid Transport System X-AG / metabolism
  • Animals
  • Aquaporin 4 / metabolism
  • Astrocytes / metabolism*
  • Epilepsy / etiology
  • Epilepsy / metabolism*
  • Gap Junctions / metabolism
  • Humans
  • Potassium Channels, Inwardly Rectifying / metabolism

Substances

  • Amino Acid Transport System X-AG
  • Aquaporin 4
  • Potassium Channels, Inwardly Rectifying
  • Adenosine