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Glucocorticoids, lipocortins and the immune response
1Department of Rheumatology, Medical College of St. Bartholomew's Hospital, London, UK.
Current Opinion in Immunology
|February 1, 1993
Summary
Glucocorticoids, potent anti-inflammatory drugs, may exert effects via lipocortin-1. This protein, induced by glucocorticoids, could mediate anti-inflammatory actions through receptors on phagocytic cells, offering new insights into inflammation regulation.
Area of Science:
- Immunology
- Molecular Biology
- Cell Biology
Background:
- Glucocorticoids are widely used for their immunosuppressive and anti-inflammatory properties.
- Their mechanisms of action are diverse and not fully elucidated.
- Lipocortin-1, an annexin family protein, is known to be involved in cellular processes.
Purpose of the Study:
- To review recent evidence on the role of lipocortin-1 in mediating glucocorticoid effects.
- To explore the potential involvement of lipocortin-1 receptors in inflammation.
- To propose a novel hypothesis for inflammation regulation based on annexin biology.
Main Methods:
- Literature review of recent studies on glucocorticoids, lipocortin-1, and annexins.
- Analysis of evidence for lipocortin-1 induction by glucocorticoids.
- Examination of findings regarding lipocortin-1 receptors on phagocytic cells.
Main Results:
- Glucocorticoids can induce the expression of lipocortin-1.
- Lipocortin-1 may be a key mediator of glucocorticoid-induced anti-inflammatory effects.
- Putative lipocortin-1 receptors are present on phagocytic cells, suggesting a cellular interaction point.
Conclusions:
- Lipocortin-1 is a significant mediator of glucocorticoid actions.
- The lipocortin-1 receptor system offers a novel target for understanding and regulating inflammation.
- Advances in annexin biology provide a framework for a new model of inflammation control.