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T-cell clones specific for myelin basic protein induce chronic relapsing paralysis and demyelination
Nature
|September 2, 1985
Summary
Experimental allergic encephalomyelitis (EAE) in mice was induced by T-cell clones targeting myelin basic protein (MBP). This study demonstrates that T-cell clones responding to self-antigens can cause autoimmune disease, mimicking human demyelinating conditions.
Area of Science:
- Neuroimmunology
- Autoimmunity
- T-cell immunology
Background:
- Experimental allergic encephalomyelitis (EAE) is a T-cell mediated autoimmune disease model.
- Myelin basic protein (MBP) is a key autoantigen in EAE.
- Different MBP peptide fragments induce EAE in specific mouse strains.
Purpose of the Study:
- To generate and characterize MBP-specific T-cell clones.
- To investigate the ability of these T-cell clones to induce EAE in vivo.
- To explore the clinical and pathological features of the induced EAE.
Main Methods:
- Sensitization of inbred mouse strains (PL/J, SJL/J, (PLSJ)F1) to MBP and its peptides.
- Generation of major histocompatibility complex (MHC) class II-restricted MBP-specific T-cell clones.
- Induction of EAE in recipient mice using cloned T cells.
- Clinical assessment and histopathological analysis of the central nervous system.
Main Results:
- MBP-specific T-cell clones were generated and characterized.
- Transfer of I-Au-restricted T-cell clones induced EAE in (PLSJ)F1 mice with 100% penetrance.
- Induced EAE exhibited relapsing-remitting and chronic persistent forms, with central nervous system inflammation and demyelination.
Conclusions:
- Defined T-cell clones recognizing self-antigens can induce autoimmune disease.
- The experimental EAE model induced by T-cell clones shares features with human demyelinating diseases like multiple sclerosis.
- This study provides a novel in vivo model for studying T-cell-mediated autoimmunity.