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Human T cell receptors for monkey erythrocytes.
International Archives of Allergy and Applied Immunology
|January 1, 1979
Summary
Human T cells and rhesus monkey T cells show specific binding patterns with erythrocytes from different species. This study reveals cross-species T cell receptor interactions with red blood cells.
Area of Science:
- Immunology
- Cell Biology
- Comparative Biology
Background:
- T cell receptors (TCRs) are crucial for adaptive immunity.
- Understanding TCR specificity is key to immune response.
- Interspecies cell interactions are not fully characterized.
Purpose of the Study:
- To investigate the cross-reactivity of T cell receptors (TCRs) from humans and rhesus monkeys.
- To determine the specificity of T cell rosette formation with erythrocytes from different species (human, rhesus monkey, sheep).
Main Methods:
- Rosette formation assays were performed.
- Erythrocytes and lymphocytes from humans, rhesus monkeys, and sheep were used.
- Four different combinations of cell mixtures were analyzed.
Main Results:
- A significant proportion of human T cells formed spontaneous rosettes with rhesus monkey erythrocytes.
- A small number of rhesus monkey lymphocytes formed rosettes with human O Rh-negative erythrocytes.
- Both human and rhesus monkey T cells formed rosettes with sheep erythrocytes.
Conclusions:
- Human and rhesus monkey T cells exhibit specific binding affinities for erythrocytes of different species.
- These findings suggest potential cross-species T cell receptor interactions.
- Further research is warranted to elucidate the mechanisms of these interspecies cellular interactions.