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Related Experiment Video

Updated: Feb 13, 2026

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Advancing EAE Modeling: Establishment of a Non-Pertussis Immunization Protocol for Multiple Sclerosis.

Shruti Gupta1, Sreejita Arnab2, Elena Stehle2

  • 1Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, USA.

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|February 12, 2026
PubMed
Summary

A new experimental autoimmune encephalomyelitis (EAE) model in mice effectively mimics multiple sclerosis (MS) pathology without pertussis toxin (PTX). This refined rodent model offers improved relevance for preclinical MS research by avoiding PTX

Keywords:
AtaxiaEAEMultiple sclerosisNeuropathic painNon-PTX EAEPertussis toxin (PTX)

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Area of Science:

  • Neuroimmunology
  • Autoimmune Diseases
  • Animal Models of Human Disease

Background:

  • Experimental autoimmune encephalomyelitis (EAE) is a common model for multiple sclerosis (MS).
  • Pertussis toxin (PTX) is frequently used to induce EAE but causes immunomodulatory effects not seen in human MS.
  • PTX obscures sex differences in EAE, limiting its translational value for MS research.

Purpose of the Study:

  • To develop a reproducible, clinically relevant EAE model in C57BL/6 mice without PTX.
  • To create a model that better recapitulates MS pathophysiology and sex-specific differences.

Main Methods:

  • Established a non-pertussis toxin (non-PTX) EAE model using optimized concentrations of complete Freund's adjuvant (CFA), Mycobacterium tuberculosis, and MOG35-55 peptide.
  • Utilized C57BL/6 mice for induction of the EAE model.

Main Results:

  • The non-PTX EAE model successfully induced MS-like features including demyelination, neuroinflammation, motor deficits, and neuropathic pain.
  • This model retained sex-specific differences in disease onset and pathology.
  • Off-target effects of PTX on GPCR signaling, T-cell responses, and neuroimmune interactions were eliminated.

Conclusions:

  • A non-PTX EAE model provides a more physiologically and clinically relevant platform for MS research.
  • This model enhances the translational value of EAE studies for preclinical therapeutic testing.
  • Eliminating PTX confounds allows for a clearer understanding of MS pathogenesis and sex differences.