Endotyping Chronic Rhinosinusitis with Nasal Polyps: Understanding Inflammation Beyond Phenotypes

Area of Science:

• Otolaryngology
• Immunology
• Pathobiology

Background:

• Chronic rhinosinusitis with nasal polyps (CRSwNP) represents a heterogeneous inflammatory condition affecting the upper airway.
• Recent translational research has significantly enhanced the understanding of CRSwNP pathobiology.
• CRSwNP patient care is evolving towards more personalized treatment strategies.

Approach:

• This review synthesizes recent advancements in CRSwNP research.
• It examines the classification of CRSwNP into distinct inflammatory endotypes (Type 1, 2, and 3).
• The impact of these findings on current and future therapeutic interventions is discussed.

Key Points:

• CRSwNP is characterized by diverse inflammatory pathways.
• Endotyping patients based on inflammation type (e.g., Type 2) is crucial for treatment selection.
• Targeted biologic therapies are emerging as effective options for specific CRSwNP endotypes.

Conclusions:

• A deeper understanding of CRSwNP pathobiology and endotypes is transforming patient management.
• Personalized medicine, particularly biologic therapies, offers new hope for CRSwNP patients.
• Future research should continue to elucidate endotype-specific mechanisms and treatments for CRSwNP.