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B cell genotype determines interaction preference with T cells: no effect of maturation environment
Journal of Immunology (Baltimore, Md. : 1950)
|July 1, 1983
Summary
The chicken's B cell development is determined by its own genes, not its environment. This finding clarifies how B cells interact with T cells, impacting immune responses.
Area of Science:
- Immunology
- Developmental Biology
- Chicken B cell development
Background:
- B cell development occurs in the bursa of Fabricius.
- MHC-restricted T-B cell interaction is crucial for adaptive immunity.
Purpose of the Study:
- To investigate the environmental influence on B cell development.
- To determine if the developmental environment affects MHC restriction in T-B cell interactions.
Main Methods:
- Construction of neonatal chicken bursa cell chimeras (F1 to parent, parent to F1).
- Adoptive cell transfer to study in vivo T-B cell interactions.
- Analysis of MHC restriction patterns and response to T-independent antigens.
Main Results:
- F1 B cells developed in a parental host bursa retained their normal MHC restriction.
- Parent to F1 chimeric B cells were similar to normal parental B cells.
- All chimeric B cells responded effectively to the T-independent antigen Brucella.
Conclusions:
- The B cell's intrinsic genotype dictates its MHC restriction phenotype.
- The developmental environment within the bursa does not alter MHC restriction patterns.
- B cell MHC restriction is genetically determined, not environmentally influenced.