期刊
ANNUAL REVIEW OF MICROBIOLOGY, VOL 67
卷 67, 期 -, 页码 543-564出版社
ANNUAL REVIEWS
DOI: 10.1146/annurev-micro-092412-155735
关键词
prion; TSE; amytrophic lateral sclerosis; Alzheimer's; Parkinson's; Huntington's; transmissibility; protein misfolding
类别
资金
- Intramural NIH HHS [Z01 AI000580-19, Z01 AI000580-18] Funding Source: Medline
Prions, or infectious proteins, represent a major frontier in the study of infectious agents. The prions responsible for mammalian transmissible spongiform encephalopathies (TSEs) are due primarily to infectious self-propagation of misfolded prion proteins. TSE prion structures remain ill-defined, other than being highly structured, self-propagating, and often fibrillar protein multimers with the capacity to seed, or template, the conversion of their normal monomeric precursors into a pathogenic form. Purified TSE prions usually take the form of amyloid fibrils, which are self-seeding ultrastructures common to many serious protein misfolding diseases such as Alzheimer's, Parkinson's, Huntington's and Lou Gehrig's (amytrophic lateral sclerosis). Indeed, recent reports have now provided evidence of prion-like propagation of several misfolded proteins from cell to cell, if not from tissue to tissue or individual to individual. These findings raise concerns that various protein misfolding diseases might have spreading, prion-like etiologies that contribute to pathogenesis or prevalence.
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