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Microglia: active sensor and versatile effector cells in the normal and pathologic brain

Item Type:Review
Title:Microglia: active sensor and versatile effector cells in the normal and pathologic brain
Creators Name:Hanisch, U.K. and Kettenmann, H.
Abstract:Microglial cells constitute the resident macrophage population of the CNS. Recent in vivo studies have shown that microglia carry out active tissue scanning, which challenges the traditional notion of 'resting' microglia in the normal brain. Transformation of microglia to reactive states in response to pathology has been known for decades as microglial activation, but seems to be more diverse and dynamic than ever anticipated-in both transcriptional and nontranscriptional features and functional consequences. This may help to explain why engagement of microglia can be either neuroprotective or neurotoxic, resulting in containment or aggravation of disease progression. Moreover, little is known about the heterogeneity of microglial responses in different pathologic contexts that results from regional adaptations or from the progression of a disease. In this review, we focus on several key observations that illustrate the multi-faceted activities of microglia in the normal and pathologic brain.
Keywords:Biological Models, Brain, Brain Diseases, Microglia, Animals
Source:Nature Neuroscience
ISSN:1097-6256
Publisher:Nature Publishing Group (U.K.)
Volume:10
Number:11
Page Range:1387-1394
Date:November 2007
Official Publication:https://doi.org/10.1038/nn1997
PubMed:View item in PubMed

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