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Updated: Aug 8, 2026

A Method to Assess Fc-mediated Effector Functions Induced by Influenza Hemagglutinin Specific Antibodies
Published on: February 23, 2018
[Activation-dependent expression of Fc gamma-receptors on glomerular mesangial cells]
J E Gessner1, H H Radeke, P Uciechowski
1Abteilungen Immunologie und Transfusionsmedizin, Medizinischen Hochschule Hannover.
Insights
Resting mesangial cells can express CD16TM receptors upon IFN gamma induction, leading to IL-6 secretion when immune complexes bind. This allows in vivo study of Fc receptors in chronic glomerular inflammation.
Area of Science:
- Immunology
- Nephrology
- Cell Biology
Context:
- Mesangial cells (MCs) play a key role in kidney function and disease.
- Interferon gamma (IFN gamma) is a cytokine with immunomodulatory effects.
- Fc receptors mediate immune complex recognition and cellular responses.
Purpose:
- To investigate the functional role of Fc gamma-RIIIa and gamma chain-associated Fc receptors in mesangial cells.
- To explore the induction of CD16TM receptor expression and subsequent IL-6 secretion in MCs.
- To enable in vivo studies of chronic glomerular inflammation using Fc epsilon RI-gamma gene knockout models.
Summary:
- IFN gamma induces resting mesangial cells to express Fc gamma-RIIIa and Fc epsilon RI-gamma subunits, forming the CD16TM receptor complex.
- Binding of immune complexes to MCs expressing CD16TM triggers Interleukin-6 (IL-6) secretion.
- The availability of Fc epsilon RI-gamma gene knockout models facilitates in vivo research on Fc receptor function in glomerular inflammation.
Impact:
- Provides a novel in vitro system to study Fc receptor-mediated mesangial cell activation.
- Enables detailed investigation into the role of Fc gamma-RIIIa in immune complex-induced kidney inflammation.
- Facilitates the study of chronic glomerular inflammation within the intact immune system in vivo.
Abstract:
Resting, non-cycling mesangial cells (MCs) can be induced by IFN gamma to express the Fc gamma-RIIIa and Fc epsilon RI-gamma subunits of the CD16TM receptor complex. After cell surface expression of CD16TM by IFN gamma induction the binding of immune complexes to MCs induces IL-6 secretion. A Fc epsilon RI-gamma gene knockout has recently been described. It is now possible to study the function of Fc gamma RIIIa and other gamma chain associated Fc receptors in the initiation and progression of chronic glomerular inflammation in the context of the intact immune system in vivo.
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