Host-microbial interactions in patients with chronic rhinosinusitis
1Division of Rheumatology, Allergy & Immunology, Massachusetts General Hospital, Boston, Mass.
The Journal of Allergy and Clinical Immunology
|December 3, 2013
Summary
Chronic rhinosinusitis (CRS) involves complex host-microbial interactions, with bacterial biofilms linked to severe disease. Current treatments struggle to restore microbial balance in CRS patients.
Area of Science:
- Microbiology
- Immunology
- Otolaryngology
Background:
- Host-microbial interactions are key in chronic rhinosinusitis (CRS).
- Bacterial biofilms are common in CRS, correlating with disease severity and poor surgical outcomes.
- The roles of viral and fungal infections in CRS are less understood.
Purpose of the Study:
- To investigate the complex host-microbial interactions in chronic rhinosinusitis (CRS).
- To explore potential immune defects and their link to persistent infections in CRS.
- To identify challenges in restoring host-microbial balance for effective CRS treatment.
Main Methods:
- Review of existing research on host-microbial interactions in CRS.
- Analysis of studies on bacterial biofilms, innate immunity, and antimicrobial proteins in CRS patients.
- Examination of genetic factors and inflammatory responses associated with refractory CRS.
Main Results:
- Bacterial biofilms are prevalent in CRS and associated with worse outcomes.
- Some antimicrobial proteins like lactoferrin are decreased, while others are normal.
- Reduced expression of Toll-like receptor 9 and polymorphisms in bitter taste receptors are noted in some CRS cases.
- Maladaptive TH2 inflammation may downregulate innate immunity, promoting persistent infections.
Conclusions:
- Restoring host-microbial balance in CRS remains a significant clinical challenge.
- Understanding immune dysregulation and microbial factors is crucial for developing effective therapies.
- Further research is needed to identify therapeutic targets for CRS treatment.
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