Dysregulation of mTOR Signaling after Brain Ischemia

Int J Mol Sci. 2022 Mar 4;23(5):2814. doi: 10.3390/ijms23052814.

Abstract

In this review, we provide recent data on the role of mTOR kinase in the brain under physiological conditions and after damage, with a particular focus on cerebral ischemia. We cover the upstream and downstream pathways that regulate the activation state of mTOR complexes. Furthermore, we summarize recent advances in our understanding of mTORC1 and mTORC2 status in ischemia-hypoxia at tissue and cellular levels and analyze the existing evidence related to two types of neural cells, namely glia and neurons. Finally, we discuss the potential use of mTORC1 and mTORC2 as therapeutic targets after stroke.

Keywords: MCAo; astrocytes; brain ischemia; glia; mTOR; mTORC1; mTORC2; microglia; neuron; oligodendrocytes.

Publication types

  • Review

MeSH terms

  • Brain Ischemia*
  • Humans
  • Mechanistic Target of Rapamycin Complex 1 / metabolism
  • Mechanistic Target of Rapamycin Complex 2 / metabolism
  • Signal Transduction
  • TOR Serine-Threonine Kinases* / metabolism

Substances

  • MTOR protein, human
  • Mechanistic Target of Rapamycin Complex 1
  • Mechanistic Target of Rapamycin Complex 2
  • TOR Serine-Threonine Kinases