Mossy cells of the dentate gyrus: Drivers or inhibitors of epileptic seizures?

Biochim Biophys Acta Mol Cell Res. 2022 Sep;1869(9):119279. doi: 10.1016/j.bbamcr.2022.119279. Epub 2022 May 6.


Mossy cells (MCs) are glutamatergic cells of the dentate gyrus with an important role in temporal lobe epilepsy. Under physiological conditions MCs can control both network excitations via direct synapses to granule cells and inhibition via connections to GABAergic interneurons innervating granule cells. In temporal lobe epilepsy mossy cell loss is one of the major hallmarks, but whether the surviving MCs drive or inhibit seizure initiation and generalization is still a debate. The aim of the present review is to summarize the latest findings on the role of mossy cells in healthy and overexcited hippocampus.

Keywords: Dentate gyrus; Epilepsy; Granule cell; Mossy cell; hippocampus.

Publication types

  • Review
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Epilepsy*
  • Epilepsy, Temporal Lobe*
  • Hippocampus
  • Humans
  • Mossy Fibers, Hippocampal / physiology
  • Seizures