Related Experiment Videos
Developmentally controlled expression of immunoglobulin VH genes.
Science (New York, N.Y.)
|March 29, 1985
Summary
The antibody repertoire develops in an ordered manner, not randomly. Fetal B-lineage cells primarily use the VH 7183 gene family, with others joining during neonatal development.
Area of Science:
- Immunology
- Developmental Biology
- Genetics
Background:
- Antibody diversity is crucial for adaptive immunity.
- Antibody gene rearrangement mechanisms are complex and not fully understood.
- Mammalian antibody repertoire development occurs during ontogeny.
Purpose of the Study:
- To investigate the ordered development of the antibody repertoire.
- To determine if variable heavy chain (VH) gene family rearrangement is programmed.
- To understand the ontogeny of immune function.
Main Methods:
- Analysis of early pre-B and B-lymphocyte cell lines.
- Examination of variable region of immunoglobulin heavy chains (VH) gene family rearrangement.
- Comparison of fetal and neonatal B-lineage cell repertoires.
Main Results:
- Fetal B-lineage cells show a restricted VH repertoire, mainly the VH 7183 gene family.
- Additional VH gene families are recruited during neonatal development.
- Evidence suggests an ordered, programmed development of the antibody response.
Conclusions:
- The antibody repertoire develops in a programmed fashion.
- Ordered VH gene family recruitment is a key aspect of immune ontogeny.
- Findings have significant implications for understanding immune development.