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Clinical Microbiology Reviews, 01 1996, 34-46, Vol 9, No. 1
TR Kozel
Fungi have been studied as prototype activators of the complement cascade
since the early 1900s. More recently, attention has focused on the role of
the complement system in the pathogenesis of fungal infections. The
interactions of Cryptococcus neoformans and Candida albicans with the
complement system are the most widely characterized; however, all
pathogenic fungi examined to date have the ability to initiate the
complement cascade. The molecular mechanisms for initiation and regulation
of the complement cascade differ from one fungus to another, most likely
reflecting differences in the structure of the outer layers of the cell
wall. The molecular bases for such differences remain to be identified.
Studies of mycoses in experimental animals with induced or congenital
deficiencies in the complement system demonstrate that complement is an
important innate system for control of fungal infection. Contributions to
host resistance include opsonization and generation of inflammatory
mediators. Inflammation induced by chemotactic products of the complement
system may contribute to the pathogenesis of some fungal infections.
Copyright © 1996 by the American Society for Microbiology. All rights reserved.
Activation of the complement system by pathogenic fungi
Department of Microbiology and Cell and Molecular Biology Program, University of Nevada, Reno 89557, USA.
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