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Primate autoimmune disease models; lost for translation?

Bert A 't Hart1,2

  • 1Department Immunobiology, Biomedical Primate Research Centre, Rijswijk, The Netherlands.

Clinical & Translational Immunology
|April 25, 2017
PubMed
Summary

Translational research faces challenges harmonizing the 4 R's: replacement, reduction, refinement, and clinical relevance. This conflict is evident in non-human primate models for multiple sclerosis drug development.

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Area of Science:

  • Neuroscience
  • Translational Medicine
  • Animal Models

Background:

  • The 3 R's (Replacement, Reduction, Refinement) are ethical guidelines in animal research.
  • Clinical Relevance (4th R) is crucial for translational success.
  • Non-human primate models are vital for studying complex neurological diseases like multiple sclerosis.

Purpose of the Study:

  • To evaluate the inherent conflicts among the 4 R's in a non-human primate model of multiple sclerosis.
  • To identify challenges in applying the 4 R's framework to preclinical drug development using this model.

Main Methods:

  • Utilized an experimental autoimmune encephalomyelitis (EAE) model in non-human primates.
  • Assessed the model's alignment with Replacement, Reduction, Refinement, and clinical Relevance principles.

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Main Results:

  • An inherent conflict was identified among the 4 R's within the EAE non-human primate model.
  • Harmonizing all 4 R's proved impossible, posing a significant challenge.

Conclusions:

  • The conflict among the 4 R's presents a major hurdle for preclinical drug development in multiple sclerosis.
  • Rethinking the application of these principles in complex animal models is necessary.