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Parasite Immunol. 2005 Oct-Nov;27(10-11):361-71.

Regulation of innate and acquired immunity in African trypanosomiasis.

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1
Department of Bacteriology, University of Wisconsin-Madison, Madison, WI 53706, USA. jmm@bact.wisc.edu

Abstract

African trypanosomes are well known for their ability to avoid immune elimination by switching the immunodominant variant surface glycoprotein (VSG) coat during infection. However, antigenic variation is only one of several means by which trypanosomes manipulate the immune system of their hosts. In this article, the role of parasite factors such as GPI anchor residues of the shed VSG molecule and the release of CpG DNA, in addition to host factors such as IFN-gamma, in regulating key aspects of innate and acquired immunity during infection is examined. The biological relevance of these immunoregulatory events is discussed in the context of host and parasite survival.

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