TGF-β1 ameliorates BBB injury and improves long-term outcomes in mice after ICH

Biochem Biophys Res Commun. 2023 Apr 30:654:136-144. doi: 10.1016/j.bbrc.2023.03.007. Epub 2023 Mar 6.

Abstract

Intracerebral hemorrhage (ICH) is a devastating subtype of stroke characterized by high mortality and morbidity rates with no effective treatment. TGF-β/ALK-5 signaling is reported to participated in the regulation of blood-brain barrier (BBB) integrity in the inflammation pain model, the effects of transforming growth factor (TGF)-β1 and the potential mechanisms on BBB after ICH have not been fully elucidated. Herein, we have demonstrated that peripheral administration of TGF-β1 reduces brain edema and ameliorated BBB injury after ICH. Consistent with previous results, TGF-β1 is shown to promote activation of anti-inflammatory microglia and reduce the inflammatory response after ICH. Furthermore, TGF-β1 administration improves long-term outcomes after ICH. Our data suggest that TGF-β1 may be a promising therapeutic agent for ICH.

Keywords: Blood-brain barrier; Intracerebral hemorrhage; Microglia/macrophage; Neuroinflammation; TGF-β1.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Blood-Brain Barrier / metabolism
  • Brain Edema* / drug therapy
  • Brain Edema* / metabolism
  • Cerebral Hemorrhage / drug therapy
  • Cerebral Hemorrhage / metabolism
  • Mice
  • Signal Transduction
  • Stroke* / metabolism
  • Transforming Growth Factor beta1 / metabolism

Substances

  • Transforming Growth Factor beta1