Publication Date:
2005-10-22
Description:
Infection of mice with an attenuated Creutzfeldt-Jakob disease agent (SY-CJD) interferes with superinfection by a more virulent human-derived CJD agent (FU-CJD) and does not require pathological prion protein (PrPres). Using a rapid coculture system, we found that a neural cell line free of immune system cells similarly supported substantial CJD agent interference without PrPres. In addition, SY-CJD prevented superinfection by sheep-derived Chandler (Ch) and 22L scrapie agents. However, only 22L and not Ch prevented FU-CJD infection, even though both scrapie strains provoked abundant PrPres. This relationship between particular strains of sheep- and human-derived agents is likely to affect their prevalence and epidemic spread.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nishida, Noriuki -- Katamine, Shigeru -- Manuelidis, Laura -- NS12674/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2005 Oct 21;310(5747):493-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Yale Medical School, New Haven, CT 06510, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16239476" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Cell Line
;
Coculture Techniques
;
*Creutzfeldt-Jakob Syndrome
;
Humans
;
Mice
;
Neurons/metabolism/*physiology
;
PrPSc Proteins/metabolism/*pathogenicity
;
Prions/metabolism/*pathogenicity/*physiology
;
Scrapie
;
Sheep
;
Species Specificity
;
Virulence
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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