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Anti-H-2 antibodies induced by syngeneic immunization
P Iványi1, P van Mourik, M Breuning
1Central Laboratory of the Netherlands Red Cross Blood Transfusion Service, University of Amsterdam, Amsterdam, The Netherlands.
Immunogenetics
|March 31, 2012
Summary
BALB/c mice produced alloreactive cytotoxic antibodies against H-2 specificities after immunization. These findings suggest virus-modified H-2d structures may trigger B-cell clones to produce anti-H-2 antibodies.
Area of Science:
- Immunology
- Virology
- Genetics
Background:
- Alloreactive antibodies can be generated through various immunization methods.
- The H-2 complex in mice plays a crucial role in immune responses and transplantation.
- Understanding antibody specificity is key to immune system research.
Purpose of the Study:
- To investigate the induction of alloreactive cytotoxic antibodies in BALB/c mice.
- To characterize the specificity of induced antibodies against H-2 haplotypes.
- To explore the potential role of virus-modified antigens in triggering alloreactivity.
Main Methods:
- Syngeneic immunization of BALB/c mice with normal lymphoid cells.
- Serological testing of induced antibodies against a panel of H-2 haplotypes.
- Absorption and immunoprecipitation assays to confirm antibody specificity.
Main Results:
- Alloreactive cytotoxic antibodies were induced in 16 out of 41 mice.
- Antibodies exhibited distinct anti-H-2 specificity, with anti-Kk being common.
- Individual sera showed varied reactivity patterns across different H-2 haplotypes.
Conclusions:
- Syngeneic immunization can effectively induce alloreactive antibodies with specific H-2 targets.
- Virus-modified H-2d structures are hypothesized to be the trigger for alloreactive B-cell clones.
- Further research is warranted to elucidate the precise mechanisms of virus-induced alloreactivity.
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