Bronchoalveolar cytokine profile differentiates Pulmonary Langerhans cell histiocytosis patients from other smoking-related interstitial lung diseases

Autor: Silvia Barril, Paloma Acebo, Paloma Millan-Billi, Alfonso Luque, Oriol Sibila, Carlos Tarín, Abdellatif Tazi, Diego Castillo, Sonsoles Hortelano
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Respiratory Research, Vol 24, Iss 1, Pp 1-13 (2023)
Druh dokumentu: article
ISSN: 1465-993X
DOI: 10.1186/s12931-023-02622-z
Popis: Abstract Background Pulmonary Langerhans cell histiocytosis (PLCH) is a rare interstitial lung disease (ILD) associated with smoking, whose definitive diagnosis requires the exclusion of other forms of ILD and a compatible surgical lung biopsy. Bronchoalveolar lavage (BAL) is commonly proposed for the diagnosis of ILD, including PLCH, but the diagnostic value of this technique is limited. Here, we have analyzed the levels of a panel of cytokines and chemokines in BAL from PLCH patients, in order to identify a distinct immune profile to discriminate PLCH from other smoking related-ILD (SR-ILD), and comparing the results with idiopathic pulmonary fibrosis (IPF) as another disease in which smoking is considered a risk factor. Methods BAL samples were collected from thirty-six patients with different ILD, including seven patients with PLCH, sixteen with SR-ILD and thirteen with IPF. Inflammatory profiles were analyzed using the Human Cytokine Membrane Antibody Array. Principal component analysis (PCA) was performed to reduce dimensionality and protein–protein interaction (PPI) network analysis using STRING 11.5 database were conducted. Finally, Random forest (RF) method was used to build a prediction model. Results We have found significant differences (p
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