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Related Experiment Video

Updated: Feb 15, 2026

Real-time Quaking-induced Conversion Assay for Detection of CWD Prions in Fecal Material
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Efficient prion disease transmission through common environmental materials.

Sandra Pritzkow1, Rodrigo Morales1, Adam Lyon1

  • 1From the Mitchell Center for Alzheimer's Disease and Related Brain Disorders, Department of Neurology, University of Texas Houston Medical School, Houston, Texas 77030 and.

The Journal of Biological Chemistry
|January 14, 2018
PubMed
Summary

Common materials like wood, plastic, and metal can bind and spread infectious prions, causing fatal neurodegenerative diseases. This study shows environmental surfaces act as vectors for prion transmission in animals.

Keywords:
Creutzfeldt-Jakob diseasechronic wasting diseaseneurodegenerationneurodegenerative diseaseprionprion diseaseprotein misfoldingscrapie

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Area of Science:

  • Neurodegenerative Diseases
  • Infectious Agents
  • Environmental Contamination

Background:

  • Prion diseases are fatal neurodegenerative conditions caused by infectious proteins called prions.
  • Environmental contamination is a suspected natural transmission route for prion diseases.

Purpose of the Study:

  • To investigate if common environmental materials bind and retain prions.
  • To determine if these materials can transmit prion diseases to animals.

Main Methods:

  • Surfaces of wood, rocks, plastic, glass, cement, stainless steel, and aluminum were exposed to hamster scrapie prions.
  • Prion binding, retention, and infectivity were assessed in vitro and in vivo.
  • Animals were exposed to contaminated materials through housing and implants.

Main Results:

  • Most tested materials (except brass) efficiently bound, retained, and released infectious prions.
  • Contaminated materials transmitted prion disease to hamsters at high rates.
  • Housing animals with contaminated materials led to disease development.

Conclusions:

  • Environmental surfaces can bind and retain infectious prions.
  • Commonly encountered materials can act as vectors for prion disease transmission.
  • Understanding surface contamination is crucial for managing prion disease spread.