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Brandner, S; Klein, M A; Aguzzi, A (1999). A crucial role for B cells in neuroinvasive scrapie. Transfusion Clinique et Biologique, 6(1):17-23.

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Although prions are most efficiently propagated via intracerebral inoculation, peripheral administration has caused kuru [Gajdusek et al, 1966], iatrogenic Creutzfeldt-Jakob disease (CJD) [Gibbs et al, 1997], bovine spongiform encephalitis (BSE), and new variant CJD [Hill et al, 1997; Bruce et al, 1997]. Neurological disease after peripheral inoculation depends on prion expansion within cells of the lymphoreticular system (LRS) [Lasmezas et al. 1996; Wilesmith et al, 1992]. In order to identify the nature of the latter cells, we inoculated a panel of immune deficient mice with prions intraperitoneally. While defects affecting only T lymphocytes had no apparent effect, all mutations affecting differentiation and responses of B lymphocytes prevented development of clinical scrapie. Since absence of B cells and of antibodies correlates with severe defects in follicular dendritic cells (FDCs), the lack of any of these three components may prevent clinical scrapie. Yet, mice expressing immunoglobulins exclusively of the M subclass without detectable specificity for PrPc, and mice with differentiated B cells but lacking functional FDCs, developed scrapie after peripheral inoculation: therefore, differentiated B cells appear to play a crucial role in neuroinvasion of scrapie regardless of B-cell receptor specificity.


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Additional indexing

Item Type:Journal Article, refereed
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Institute of Neuropathology
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Date:1 February 1999
Deposited On:11 Feb 2008 12:25
Last Modified:05 Apr 2016 12:20
Publisher DOI:10.1016/S1246-7820(99)80007-X
PubMed ID:10188209

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