Related Experiment Video
Updated: Jul 28, 2026
10:12
Protein Misfolding Cyclic Amplification of Prions
Published on: November 7, 2012
Quantitative trait loci affecting prion incubation time in mice.
D A Stephenson1, K Chiotti, C Ebeling
1McLaughlin Research Institute, Great Falls, Montana 59405, USA.
Genomics
|October 3, 2000
Summary
Genetic factors beyond the prion protein gene influence prion disease progression. Researchers identified new genetic loci on chromosomes 9 and 11 that affect scrapie incubation time in mice.
Area of Science:
- Neuroscience
- Genetics
- Immunology
Background:
- Prion diseases are neurodegenerative disorders.
- The prion protein (PrP) gene is a key factor in disease susceptibility.
- Other genetic factors may influence disease progression and incubation periods.
Purpose of the Study:
- To investigate genetic loci influencing prion disease incubation time.
- To identify genes affecting prion susceptibility beyond the PrP gene.
Main Methods:
- Analysis of scrapie incubation time as a quantitative trait.
- Utilizing crosses between SJL/J and CAST/Ei mouse strains.
- Genetic mapping to identify relevant chromosomal regions.
Main Results:
- Identified significant genetic loci on Chromosomes 9 and 11.
- These loci influence prion susceptibility and incubation time.
- Mouse strains with identical PrP molecules showed different incubation periods.
Conclusions:
- Genetic factors on Chromosomes 9 and 11 play a role in prion disease.
- These findings expand our understanding of prion disease pathogenesis.
- Further research can explore the specific genes within these loci.
