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Mechanisms of tissue damage by the membrane attack complex of complement
1Department of Medical Biochemistry, University of Wales College of Medicine, Cardiff, UK.
Complement and Inflammation
|January 1, 1989
Summary
The complement membrane attack complex can trigger inflammatory responses without directly killing cells. This study highlights the non-lethal effects of the membrane attack complex in inflammatory disease development.
Area of Science:
- Immunology
- Cell Biology
- Pathogenesis
Background:
- The complement system is a crucial part of innate immunity.
- The membrane attack complex (MAC) is known for its cytolytic function.
- Its role in non-lytic inflammatory processes is less understood.
Purpose of the Study:
- To investigate the role of the membrane attack complex in inflammatory disease pathogenesis.
- To explore the non-lethal effects of MAC on nucleated cells.
Main Methods:
- In vitro studies using various nucleated cell types.
- Assessing cell response to MAC in the absence of cell death.
Main Results:
- Nucleated cells exhibit resistance to MAC-induced lysis.
- MAC stimulation leads to the secretion of pro-inflammatory factors.
- These effects occur even when cell death is prevented.
Conclusions:
- The membrane attack complex contributes to inflammatory diseases through non-lethal mechanisms.
- MAC-induced pro-inflammatory factor secretion is significant in pathogenesis.
- Understanding these non-lytic functions is key to targeting inflammatory diseases.
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