2-BFI attenuates ischemic injury by modulating mTOR signaling and neuroinflammation in rats

Neurosci Lett. 2021 Apr 17:750:135766. doi: 10.1016/j.neulet.2021.135766. Epub 2021 Feb 24.

Abstract

Ischemic stroke is one of the major diseases that cause mortality and morbidity of human beings, but there is still lack of effective treatment and prevention. We found that 2-(2-Benzofuranyl)-2-Imidazoline (2-BFI) is potently protective against stroke and acute inflammatory immune disease. Moreover, the mammalian target of rapamycin (mTOR) signaling contributes effectively to the modulation of post-stroke neuroinflammatory response. However, whether the protection of 2-BFI against ischemic injury is through mTOR-mediated neuroinflammatory response remains unestablished. Here, we used 2-BFI to treat ischemic rats induced by distal middle cerebral artery occlusion (dMCAO). We found that 2-BFI administration after dMCAO improved the neurological deficits and decreased the infarct volume. 2-BFI reduced phosphorylation of mTOR and p70S6, increased IL-10 and TGF-β, and decreased IFN-γ levels in ischemic rats. Our results demonstrated that 2-BFI attenuates ischemic injury by inhibiting the activation of mTOR signaling and modulating neuroinflammation after stroke in rats.

Keywords: 2-BFI; Ischemic stroke; Neuroinflammation; Neuroprotection; mTOR.

MeSH terms

  • Affinity Labels / pharmacology
  • Affinity Labels / therapeutic use*
  • Animals
  • Anti-Inflammatory Agents / pharmacology
  • Anti-Inflammatory Agents / therapeutic use*
  • Benzofurans / pharmacology
  • Benzofurans / therapeutic use*
  • Imidazoles / pharmacology
  • Imidazoles / therapeutic use*
  • Infarction, Middle Cerebral Artery / drug therapy*
  • Infarction, Middle Cerebral Artery / metabolism
  • Male
  • Rats
  • Rats, Sprague-Dawley
  • Signal Transduction
  • TOR Serine-Threonine Kinases / metabolism*

Substances

  • Affinity Labels
  • Anti-Inflammatory Agents
  • Benzofurans
  • Imidazoles
  • 2-(2-benzofuranyl)-2-imidazoline
  • TOR Serine-Threonine Kinases