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How corticosteroids work

The Journal of Allergy and Clinical Immunology

|March 1, 1975

Summary

This summary is machine-generated.

Glucocorticoids treat inflammation but humans show steroid resistance, impacting immune cells like lymphocytes and macrophages. Understanding these complex steroid actions is crucial for effective treatment.

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Area of Science:

Immunology
Pharmacology
Cell Biology

Background:

Corticosteroids are commonly prescribed for allergic and inflammatory diseases.
Significant interspecies variations exist in glucocorticoid response, with humans exhibiting steroid resistance.

Purpose of the Study:

To elucidate the effects of glucocorticoids on immune cells and inflammatory pathways.
To highlight the specific mechanisms of steroid action and resistance in humans.

Main Methods:

Review of existing literature on glucocorticoid mechanisms.
Analysis of steroid impact on lymphocyte subsets (T and B cells).
Examination of glucocorticoid effects on inflammatory mediators and immune injury types.

Main Results:

Glucocorticoids modulate T and B lymphocyte metabolism and distribution but not antibody production in humans.
Steroids significantly inhibit inflammation via vasoconstriction, reduced chemotaxis, and macrophage interference.
These agents impact Type I, III, and IV hypersensitivity reactions.

Conclusions:

Human steroid resistance necessitates a deeper understanding of glucocorticoid actions.
Glucocorticoids exert broad effects on the immune system, influencing both innate and adaptive immunity.
Further research is required to fully comprehend the complex actions of glucocorticosteroids.