Toll-like receptor 4 signaling in intracerebral hemorrhage-induced inflammation and injury

J Neuroinflammation. 2013 Feb 17:10:27. doi: 10.1186/1742-2094-10-27.

Abstract

Intracerebral hemorrhage (ICH) is a common type of fatal stroke, accounting for about 15% to 20% of all strokes. Hemorrhagic strokes are associated with high mortality and morbidity, and increasing evidence shows that innate immune responses and inflammatory injury play a critical role in ICH-induced neurological deficits. However, the signaling pathways involved in ICH-induced inflammatory responses remain elusive. Toll-like receptor 4 (TLR4) belongs to a large family of pattern recognition receptors that play a key role in innate immunity and inflammatory responses. In this review, we summarize recent findings concerning the involvement of TLR4 signaling in ICH-induced inflammation and brain injury. We discuss the key mechanisms associated with TLR4 signaling in ICH and explore the potential for therapeutic intervention by targeting TLR4 signaling.

Publication types

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

MeSH terms

  • Animals
  • Brain Injuries / immunology
  • Brain Injuries / metabolism*
  • Brain Injuries / pathology
  • Cerebral Hemorrhage / immunology
  • Cerebral Hemorrhage / metabolism*
  • Cerebral Hemorrhage / pathology
  • Humans
  • Signal Transduction* / immunology
  • Toll-Like Receptor 4 / physiology*

Substances

  • TLR4 protein, human
  • Toll-Like Receptor 4