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  • Title: Architecture of secondary lymphoid tissue in sheep experimentally challenged with scrapie.
    Author: Davies ML, Hopkins LJ, Halliday S, Houston F, Hunter N, McConnell I.
    Journal: Immunology; 2004 Feb; 111(2):230-6. PubMed ID: 15027909.
    Abstract:
    Scrapie is a transmissible spongiform encephalopathy in which there is an accumulation of the abnormal form of the prion protein, PrPsc, in the lymphoreticular system and nervous system. There is a particular accumulation of PrPsc on follicular dendritic cells within the germinal centre of B-cell follicles. Because accumulation of PrPsc in the nervous system leads to neuronal cell loss we have examined PrPsc accumulation in the prescapular and mesenteric lymph nodes in relation to lymph node architecture of scrapie-challenged sheep. We demonstrate that an accumulation of PrPsc in the lymph node fails to result in gross defects in the microanatomy and phenotype of T- and B-cell areas in the lymph nodes.
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