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T cell receptor usage in autoimmune disease

¹Division of Clinical Sciences, John Curtin School of Medical Research, Australian National University, Canberra, Australia.

Immunology and Cell Biology

|August 1, 1995

Summary

T-cell receptor (TCR) usage in autoimmune diseases like rheumatoid arthritis and multiple sclerosis is complex. Research is exploring TCR gene expression to understand pathogenic T cells, though autoantigens remain largely unknown.

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Area of Science:

Immunology
Autoimmune Diseases

Background:

Activated T-cells are implicated in autoimmune disease pathogenesis.
Experimental allergic encephalomyelitis (EAE), a model for multiple sclerosis (MS), shows T cells targeting myelin basic protein cause central nervous system inflammation and demyelination.
Encephalitogenic T cells in EAE utilize restricted T-cell receptor (TCR) V genes, leading to successful immunotherapies targeting these V gene products.

Purpose of the Study:

To review accumulated data on TCR usage in human autoimmune diseases.
To identify TCR usage of autoreactive and potentially pathogenic T cells.
Focus on rheumatoid arthritis and multiple sclerosis.

Main Methods:

Analysis of TCR repertoire expression in human autoimmune diseases.
Review of existing literature on TCR usage in rheumatoid arthritis and MS.

Main Results:

TCR repertoire analysis in human autoimmune diseases is challenging due to unknown autoantigens.
Evidence suggests restricted TCR V gene usage in pathogenic T cells.

Conclusions:

Understanding TCR usage is crucial for identifying pathogenic T cells in autoimmune diseases.
Further research is needed to elucidate the role of specific TCRs in diseases like rheumatoid arthritis and MS, especially given the challenge of identifying autoantigens.

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