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Experimental Autoimmune Uveitis: An Intraocular Inflammatory Mouse Model
Published on: January 12, 2022
Rat models of autoimmune uveitis
Gerhild Wildner1, Maria Diedrichs-Mohring, Stephan R Thurau
1Section of Immunobiology, Department of Ophthalmology, Medical Center of the University of Munich, Ludwig-Maximilians-University, Munich, Germany. Gerhild.Wildner@med.uni-muenchen.de
Ophthalmic Research
|April 19, 2008
Summary
Experimental autoimmune uveitis (EAU) models in Lewis rats reveal distinct disease pathways and offer new therapeutic strategies. Research explores antigenic mimicry for oral tolerance induction, advancing towards clinical trials for human uveitis treatment.
Area of Science:
- Ophthalmology
- Immunology
- Autoimmune Diseases
Background:
- Experimental autoimmune uveitis (EAU) in Lewis rats serves as a key model for human uveitis.
- Previous research established extraocular induction of uveitis via antigenic mimicry and investigated autoreactive T cell migration.
- Differences in EAU induced by S-antigen peptide (PDSAg) and R14 peptide highlight distinct disease regulation.
Purpose of the Study:
- To investigate the mechanisms of EAU induction and progression in Lewis rats.
- To differentiate between EAU models induced by PDSAg and R14 peptides.
- To evaluate the potential of oral tolerance induction using antigenic mimicry for therapeutic intervention.
Main Methods:
- Induction of EAU in Lewis rats using specific retinal autoantigens (PDSAg and R14 peptide).
- Investigation of T cell migration and intraocular reactivation using green fluorescent protein (GFP)+ T cells.
- Assessment of disease relapse in R14-mediated EAU.
- Application of antigenic mimicry for oral tolerance induction.
Main Results:
- Demonstrated extraocular induction of uveitis through antigenic mimicry.
- Identified distinct regulatory pathways for EAU induced by PDSAg and R14 peptides.
- Established R14-mediated EAU as a relapsing model for testing therapies during ongoing immune responses.
- Showcased successful oral tolerance induction using PDSAg and an HLA-B peptide mimic.
Conclusions:
- Lewis rat EAU models exhibit distinct characteristics, offering valuable insights into human uveitis.
- Relapsing EAU provides a platform for evaluating therapeutic strategies in active immune responses.
- Antigenic mimicry combined with oral tolerance induction shows promise for treating autoimmune eye diseases and is progressing to clinical trials.
