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Cytokine dysregulation, inflammation and well-being
Ilia J Elenkov1, Domenic G Iezzoni, Adrian Daly
1Division of Rheumatology, Immunology and Allergy, Georgetown University Medical Center, Washington, D.C., USA.
Neuroimmunomodulation
|September 17, 2005
Summary
Cytokines regulate immune responses, but their imbalance links to diseases like allergies, autoimmunity, and depression. Stress hormones can both protect against and worsen inflammation, impacting overall health.
Area of Science:
- Neuroimmunology
- Inflammation Research
- Endocrinology
Background:
- Cytokines are key mediators of immune and inflammatory responses, essential for homeostasis.
- Complex interactions between cytokines, inflammation, and adaptive immunity influence health and disease.
- Dysregulation of pro-inflammatory and anti-inflammatory cytokine balance is implicated in various human diseases.
Purpose of the Study:
- To explore the intricate relationship between cytokines, inflammation, and the neuroendocrine system.
- To investigate the role of cytokine dysregulation in common human diseases.
- To examine how stress responses interact with inflammatory pathways.
Main Methods:
- Review of existing literature on cytokine function, inflammation, and stress response.
- Analysis of the interplay between the hypothalamic-pituitary-adrenal axis, sympathetic nervous system, and immune signaling.
- Examination of the pathogenesis of diseases linked to cytokine imbalance.
Main Results:
- Imbalances in T helper (Th)1/Th2 and pro-/anti-inflammatory cytokine profiles are characteristic of atopy/allergy, autoimmunity, chronic infections, and sepsis.
- Pro-inflammatory cytokines are involved in atherosclerosis, major depression, obesity, metabolic syndrome, and sleep disturbances.
- Stress hormones can modulate inflammation, either protecting against or exacerbating it, depending on the context.
Conclusions:
- A dysfunctional neuroendocrine-immune interface may underlie atopic/allergic diseases, autoimmunity, obesity, depression, and atherosclerosis.
- Aberrant inflammatory responses and impaired resolution mechanisms negatively impact well-being, quality of life, sleep, and metabolic/cardiovascular health.
- Further research is needed to elucidate these mechanisms and inform therapeutic strategies for immune-related diseases.