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Proof-of-concept for an alternative prion detection method utilizing nanoparticle-enhanced, aptamer-template
Joseph H Ramos1, Yuri Matsuoka1, Alaa H Sewid1,2
1School of Natural Resources, The University of Tennessee, Knoxville, TN, USA.
Scientific Reports
|September 26, 2025
Summary
A new Nanoparticle-Enhanced, Aptamer Template Loop-mediated Isothermal Amplification (NEAT-LAMP) assay offers a faster, more sensitive method for detecting prion diseases like Chronic Wasting Disease (CWD). This breakthrough could significantly improve wildlife disease surveillance and management efforts.
Area of Science:
- Neuroscience
- Biotechnology
- Wildlife Disease Ecology
Background:
- Transmissible spongiform encephalopathies (TSEs), or prion diseases, are fatal neurodegenerative disorders affecting various species.
- Chronic Wasting Disease (CWD) is a significant TSE impacting North American cervid populations, posing ecological and economic challenges.
- Current diagnostic methods for CWD lack the sensitivity for early detection in live animals and environmental samples, hindering effective management.
Purpose of the Study:
- To develop a highly sensitive and rapid diagnostic assay for prion diseases, specifically Chronic Wasting Disease (CWD).
- To evaluate Nanoparticle-Enhanced, Aptamer Template Loop-mediated Isothermal Amplification (NEAT-LAMP) as a potential alternative to existing prion detection methods.
- To demonstrate the feasibility of NEAT-LAMP for improved CWD surveillance and management.
Main Methods:
- Proof-of-concept study utilizing Nanoparticle-Enhanced, Aptamer Template Loop-mediated Isothermal Amplification (NEAT-LAMP).
- Employed cellular prion protein (PrPC) as a model for assay development.
- Compared NEAT-LAMP performance against current immunoassay standards.
Main Results:
- The NEAT-LAMP assay demonstrated high sensitivity, detecting prion proteins at concentrations as low as 10 pM.
- This novel method significantly outperformed existing immunoassays in sensitivity.
- The assay is designed to be fast and resource-efficient, leveraging existing laboratory infrastructure.
Conclusions:
- NEAT-LAMP presents a promising, sensitive, and rapid diagnostic tool for prion disease detection.
- This assay has the potential to enhance the surveillance and management strategies for Chronic Wasting Disease (CWD).
- The technology's compatibility with existing diagnostic capabilities facilitates its potential adoption in wildlife health programs.
