Clinical phenotyping in sarcoidosis management

Area of Science:

• Immunology
• Pulmonology
• Granulomatous Diseases

Background:

• Sarcoidosis is a complex granulomatous disease with variable prognosis and treatment responses.
• Identifying reliable biomarkers is crucial for managing sarcoidosis phenotypes.
• Non-invasive, routine biomarkers are needed for clinical practice.

Purpose of the Study:

• To analyze clinical and immunological features of sarcoidosis.
• To identify a routine, non-invasive biomarker for sarcoidosis.
• To correlate biomarker levels with disease activity and treatment needs.

Main Methods:

• Retrospective analysis of 129 Caucasian sarcoidosis patients.
• Collected data included medical history, lab findings, lung function, and radiology.
• Neutrophil-to-lymphocyte (N/L) ratio was assessed as a potential biomarker.

Main Results:

• The N/L ratio was significantly higher in treated sarcoidosis patients (p=0.0034).
• N/L ratio distinguished treated from non-treated groups with an AUC of 65.3%.
• Higher N/L ratios correlated with advanced radiological stages (2-4) (p=0.0090).

Conclusions:

• The N/L ratio is a useful, simple laboratory biomarker for sarcoidosis.
• N/L ratio reflects disease activity and the need for treatment.
• Similar follow-up schedules may be suitable for symptomatic and asymptomatic sarcoidosis patients at onset.