期刊
IMMUNOBIOLOGY
卷 209, 期 7, 页码 545-549出版社
URBAN & FISCHER VERLAG
DOI: 10.1016/j.imbio.2004.06.003
关键词
transmissible spongiform encepbalopathy; prion; complement; C5; membrane attack complex
类别
资金
- Biotechnology and Biological Sciences Research Council [BBS/E/I/00000989] Funding Source: Medline
During transmissible spongiform encephalopathy (TSE) infections the accumulation of abnormal prion protein within the brain is often accompanied by severe neurodegeneration. Studies have implicated complement, including the membrane attack complex (MAC, C5b-C9), in inducing pathology in some neurodegenerative diseases. Recent studies show the MAC is localized on neurons in the brains of TSE patients implicating complement-mediated cell lysis in TSE neuropathology. To determine the role of the MAC in TSEs, we compared scrapic pathogenesis in C5-deficient and C5-sufficient mice. C5-deficient mice developed clinical scrapie with incubation periods similar to C5-sufficient mice. Furthermore, the severity of the neuropathology was not significantly different between C5-deficient and C5-sufficient mice. These data show that C5, and the MAC, are not involved in TSE pathogenesis. (C) 2004 Elsevier GmbH. All rights reserved.
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