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Soluble Fc gamma receptors
W H Fridman1, J L Teillaud, C Bouchard
1INSERM Unité 255, Institut Curie, France.
Journal of Leukocyte Biology
|November 1, 1993
Summary
Soluble Fc gamma receptors, found in biological fluids, are produced via splicing or cleavage. These receptors inhibit B cell functions and their levels change in diseases like multiple myeloma.
Area of Science:
- Immunology
- Molecular Biology
Background:
- Soluble Fc gamma receptors (FcγR) are present in human and mouse biological fluids.
- These soluble forms are generated through alternative splicing (FcγRII) or proteolytic cleavage (FcγRII and FcγRIII).
Purpose of the Study:
- To investigate the role and implications of soluble Fc gamma receptors in biological systems.
- To understand the mechanisms of soluble Fc gamma receptor production and their functional consequences.
Main Methods:
- Analysis of Fc gamma receptor isoforms (FcγRII, FcγRIII) in biological fluids.
- Investigation of the effects of soluble Fc gamma receptors on B cell proliferation and immunoglobulin production.
- Correlation of soluble Fc gamma RIII plasma concentrations with disease progression in multiple myeloma.
Main Results:
- Soluble Fc gamma receptors inhibit B cell proliferation and immunoglobulin production.
- Plasma concentrations of soluble Fc gamma RIII are linked to the stage of multiple myeloma.
Conclusions:
- Soluble Fc gamma receptors play a regulatory role in B cell immunity.
- Altered levels of soluble Fc gamma receptors, particularly FcγRIII, may serve as biomarkers in diseases such as multiple myeloma.