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Monoclonal suppressor T-cell factor displaying V H restriction and fine antigenic specificity
Nature
|June 23, 1983
Summary
Stable T-cell clones producing immunoregulatory products were generated. Their culture supernatant specifically suppressed anti-hen egg white lysozyme (HEL) antibody responses in mice, demonstrating targeted immune modulation.
Area of Science:
- Immunology
- Molecular Biology
Background:
- Stable T-cell clones are crucial for studying T-cell receptors and immunoregulatory products.
- Suppressor T lymphocytes specific for hen egg white lysozyme (HEL) were transformed using radiation leukaemia virus (RadLV).
Purpose of the Study:
- To investigate the immunoregulatory potential of T-cell clones.
- To characterize the specificity and genetic restrictions of T-cell-mediated suppression.
Main Methods:
- Generation of stable T-cell clones via RadLV-induced transformation.
- In vivo administration of T-cell clone culture supernatant to mice.
- Assessment of anti-HEL antibody responses and antigenic specificity.
Main Results:
- Culture supernatant from T-cell clones specifically suppressed anti-HEL antibody responses.
- Suppression was observed for HEL and human lysozyme but not ring-necked pheasant egg white lysozyme (REL), indicating epitope specificity.
- The observed suppression was genetically restricted by H-2 and Igh-1 genes.
Conclusions:
- Monoclonal T-cell products can effectively suppress specific antibody responses.
- T-cell mediated suppression exhibits fine antigenic specificity, likely targeting a specific epitope.
- Genetic factors significantly influence the efficacy of T-cell mediated immune suppression.