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Triggering Reactive Gliosis In Vivo by a Forebrain Stab Injury
Journal article   Open access   Peer reviewed

Triggering Reactive Gliosis In Vivo by a Forebrain Stab Injury

R Vivian Allahyari and A Denise R Garcia
Journal of visualized experiments : JoVE, v 2015(100), pp e52825-e52825
29 Jun 2015
PMID: 26167674
url
https://doi.org/10.3791/52825View
Published, Version of Record (VoR)Open Access (License Unspecified) Open

Abstract

Animals Astrocytes - pathology Brain Injuries - pathology Brain Injuries - physiopathology Disease Models, Animal Gliosis - etiology Gliosis - physiopathology Immunohistochemistry Male Mice Mice, Inbred C57BL Prosencephalon - injuries Prosencephalon - pathology Prosencephalon - physiopathology
Following injury to the CNS, astrocytes undergo a broad range of biochemical, morphological, and molecular changes collectively referred to as reactive astrogliosis. Reactive astrocytes exert both inflammatory and protective effects that inhibit and promote, respectively, neural repair. The mechanisms underlying the diverse functional properties of reactive astrogliosis are not well understood. Achieving a greater understanding of these mechanisms is critical to developing therapeutic strategies to treat the injured CNS. Here we demonstrate a method to trigger reactive astrogliosis in the adult mouse forebrain using a forebrain stab lesion. This lesion model is simple, reliable, and requires only a stereotaxic device and a scalpel blade to produce the injury. The use of stab lesions as an injury model in the forebrain is well established and amenable to studies addressing a broad range of neuropathological outcomes, such as neuronal degeneration, neuroinflammation, and disruptions in the blood brain barrier (BBB). Thus, the forebrain stab injury model serves as a powerful tool that can be applied for a broad range of studies on the CNS response to trauma.

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Neurosciences
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