Journal
ACTA NEUROPATHOLOGICA
Volume 133, Issue 4, Pages 579-595Publisher
SPRINGER
DOI: 10.1007/s00401-016-1638-x
Keywords
Creutzfeldt-Jakob disease; Prion; Iatrogenic; Growth hormone; Disease phenotype; Agent strain
Categories
Funding
- Department of Health Policy Research Programme
- Scottish Government [PR-ST-0614-00008]
- Department of Health
- Medical Research Council [MRC G0900580]
- MRC [G0600953, MR/L016400/1, G0900580] Funding Source: UKRI
- Medical Research Council [G0900580, MR/L016400/1, G0600953] Funding Source: researchfish
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Creutzfeldt-Jakob disease (CJD) is the prototypic human prion disease that occurs most commonly in sporadic and genetic forms, but it is also transmissible and can be acquired through medical procedures, resulting in iatrogenic CJD (iCJD). The largest numbers of iCJD cases that have occurred worldwide have resulted from contaminated cadaveric pituitary-derived human growth hormone (hGH) and its use to treat primary and secondary growth hormone deficiency. We report a comprehensive, tissue-based and molecular genetic analysis of the largest series of UK hGH-iCJD cases reported to date, including in vitro kinetic molecular modelling of genotypic factors influencing prion transmission. The results show the interplay of prion strain and host genotype in governing the molecular, pathological and temporal characteristics of the UK hGH-iCJD epidemic and provide insights into the adaptive mechanisms involved when prions cross genotypic barriers. We conclude that all of the available evidence is consistent with the hypothesis that the UK hGH-iCJD epidemic resulted from transmission of the V2 human prion strain, which is associated with the second most common form of sporadic CJD.
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