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Annu Rev Neurosci. 1999;22:219-40.

Microglia as mediators of inflammatory and degenerative diseases.

Author information

1
Department of Neurology, University of Pennsylvania Medical Center, Philadelphia 19104-6146, USA. Scarano@mail.med.upenn.edu

Abstract

Microglia are the principal immune cells in the central nervous system (CNS) and have a critical role in host defense against invading microorganisms and neoplastic cells. However, as with immune cells in other organs, microglia may play a dual role, amplifying the effects of inflammation and mediating cellular degeneration as well as protecting the CNS. In entities like human immunodeficiency virus (HIV) infection of the nervous system, microglia are also critical to viral persistence. In this review we discuss the role of microglia in three diseases in which their activity is at least partially deleterious: HIV, multiple sclerosis, and Alzheimer's disease.

PMID:
10202538
DOI:
10.1146/annurev.neuro.22.1.219
[Indexed for MEDLINE]

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