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Autoantibody activity and V gene usage by B-cell malignancies
1Immunohématologie et Immunopathologie, Institut Pasteur, Paris, France.
Leukemia & Lymphoma
|November 1, 1992
Summary
Natural autoantibodies from autoreactive B cells may play a role in immunity. This study reviews evidence suggesting this B-cell repertoire frequently undergoes malignant transformation in various B-cell cancers.
Area of Science:
- Immunology
- Oncology
- Molecular Biology
Background:
- Autoreactive B cells are a significant component of the B-cell repertoire, producing natural autoantibodies.
- These autoantibodies typically exhibit low affinity and polyspecificity, recognizing multiple antigens using germline genes.
- The precise function of this pre-immune repertoire is under investigation, with proposed roles in clearing cellular debris, early defense, and antibody maturation.
Purpose of the Study:
- To review evidence supporting the hypothesis that the autoreactive B-cell repertoire is prone to malignant transformation.
- To examine the association between autoantibody activity, V gene usage, and B-cell malignancies.
Main Methods:
- Review of existing literature and studies on B-cell malignancies.
- Analysis of autoantibody activity and V gene usage in specific B-cell cancer models.
Main Results:
- The autoreactive B-cell repertoire, characterized by restricted V gene expression, shows a propensity for malignant transformation.
- Evidence from monoclonal immunoglobulins, chronic lymphocytic leukemia, and follicular non-Hodgkin's lymphomas supports this finding.
Conclusions:
- The autoreactive B-cell repertoire is frequently implicated in the pathogenesis of B-cell malignancies.
- Understanding this repertoire is crucial for comprehending B-cell cancer development and progression.