Prion-like transmission and propagation of human β-amyloid to the bank vole rodent model - Summary - MDSpire

Prion-like transmission and propagation of human β-amyloid to the bank vole rodent model

  • By

  • Michele Angelo Di Bari

  • Rosalia Bruno

  • Geraldina Riccardi

  • Ilaria Vanni

  • Claudia D’Agostino

  • Romolo Nonno

  • Elena De Cecco

  • Anna Burato

  • Giuseppe Legname

  • Franco Cardone

  • Fabio Moda

  • Giorgio Giaccone

  • Marcella Catania

  • Giuseppe Di Fede

  • Fabrizio Tagliavini

  • Umberto Agrimi

  • June 30, 2026

  • 0 min

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Objective:

To investigate the prion-like transmission properties of human Aβ and pTau by inoculating bank voles with human brain homogenates from Alzheimer's disease patients.

Approach:
  • Animal Models: Bank voles were inoculated with brain homogenates from four sporadic AD (sAD) and five familial AD (fAD) patients to assess Aβ and pTau pathology.
  • Transmission Experiments: Vole-to-vole transmission experiments were conducted to evaluate the intraspecies propagation of Aβ.
Key Findings:
  • Human Aβ seeds are transmissible in a wild-type rodent model.
  • Aβ can propagate in a non-human host in a prion-like manner.
  • The study confirms that Aβ seeds fulfill the prion transmissibility paradigm.
Interpretation:

The findings suggest that Aβ may spread in a manner similar to prion diseases, contributing to our understanding of Alzheimer's disease pathology.

Limitations:
  • The complexity of human Alzheimer's disease may not be fully replicated in animal models.
  • The study focused on a limited number of human brain samples.
Conclusion:

The study provides evidence supporting the prion-like transmission of human Aβ in a rodent model.

Original Source(s)

Prion-like transmission and propagation of human β-amyloid to the bank vole rodent model

  • by Michele Angelo Di Bari, Rosalia Bruno, Geraldina Riccardi, Ilaria Vanni, Claudia D’Agostino, Romolo Nonno, Elena De Cecco, Anna Burato, Giuseppe Legname, Franco Cardone, Fabio Moda, Giorgio Giaccone, Marcella Catania, Giuseppe Di Fede, Fabrizio Tagliavini, Umberto Agrimi

  • June 30, 2026

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