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Background: Pulmonary sarcoidosis involves an intense leukocyte infiltration of the lung with the formation of non-necrotizing granulomas. CC chemokines (chemokine (C-C motif) ligand 2 (CCL2)-CCL5) are chemoattractants of mononuclear cells and act through seven transmembrane G-coupled receptors. Previous studies have demonstrated conflicting results with regard to the associations of these chemokines with sarcoidosis. In an effort to clarify previous discrepancies, we performed the largest observational study to date of CC chemokines in bronchoalveolar lavage fluid (BALF) from patients with pulmonary sarcoidosis.
Results: BALF chemokine levels from 72 patients affected by pulmonary sarcoidosis were analyzed by enzyme-linked immunosorbent assay (ELISA) and compared to 8 healthy volunteers. BALF CCL3 and CCL4 levels from pulmonary sarcoidosis patients were not increased compared to controls. However, CCL2 and CCL5 levels were elevated, and subgroup analysis showed higher levels of both chemokines in all stages of pulmonary sarcoidosis. CCL2, CCL5, CC chemokine receptor type 1 (CCR1), CCR2 and CCR3 were expressed from mononuclear cells forming the lung granulomas, while CCR5 was only found on mast cells.
Conclusions: These data suggest that CCL2 and CCL5 are important mediators in recruiting CCR1, CCR2, and CCR3 expressing mononuclear cells as well as CCR5-expressing mast cells during all stages of pulmonary sarcoidosis.
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http://dx.doi.org/10.1186/1755-1536-4-10 | DOI Listing |
Zhonghua Jie He He Hu Xi Za Zhi
September 2025
Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China.
Pulmonary patches with mediastinal lymphadenopathy could be showed in both lung cancer and sarcoidosis. There are certain similarities in their imaging manifestations, and histopathological examination is necessary for diagnosis. This article reports a case of a 62-year-old female patient who had a history of early-stage lung adenocarcinoma and underwent surgical treatment.
View Article and Find Full Text PDFOman Med J
March 2025
Department B of Internal Medicine, Charles Nicolle's Hospital, Faculty of Medicine, University of Tunis El Manar, Tunisia.
Sarcoidosis often manifests with pulmonary involvement, making isolated extrapulmonary presentations rare and diagnostically challenging. We present the case of a 43-year-old woman who presented with prolonged fever, deep lymphadenopathy, massive splenomegaly, hepatomegaly, and severe hypercalcemia, mimicking malignancy. The diagnosis of sarcoidosis was established after the failure of anti-tubercular therapy, exclusion of differential diagnosis, and the subsequent development of cutaneous sarcoids.
View Article and Find Full Text PDFCHEST Pulm
June 2025
Division of Rheumatology (K. R. M.), Johns Hopkins University, Baltimore, MD; the Division of Pulmonary & Critical Care (O. A.), Yale School of Medicine, New Haven, CT; the Divisions of Pulmonary & Critical Care Medicine (A. M. M., E. S. C., N. W. L., and M. S.), and Cardiology (N. A. G.), and Depar
Background: Sarcoidosis is a complex granulomatous disease that benefits from multidisciplinary subspecialty expertise. Inequitable access to care contributes to racial disparities in many diseases; however, to our knowledge, no studies have examined racial differences in referral times to Sarcoidosis Centers of Excellence.
Research Question: Is there an association between race and time from sarcoidosis diagnosis to referral to an independently certified, peer-reviewed World Association of Sarcoidosis and Other Granulomatous Disorders Center of Excellence? Does a referral result in a change in sarcoidosis management?
Study Design And Methods: We retrospectively reviewed all 2021 referrals to the Johns Hopkins Sarcoidosis Center of Excellence.
Ann Rheum Dis
September 2025
Department of Rheumatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland; Department of Rheumatology, Oslo University Hospital, Oslo, Norway. Electronic address:
Background: Interstitial lung disease (ILD) is a frequent manifestation of connective tissue diseases (CTDs) and is associated with high morbidity and mortality. Clinical practice guidelines to standardise screening, diagnosis, treatment and follow-up for CTD-ILD are of high importance for optimised patient care.
Methods: A European Respiratory Society and European Alliance of Associations for Rheumatology task force committee, composed of pulmonologists, rheumatologists, pathologists, radiologists, methodologists and patient representatives, developed recommendations based on PICO (Patients, Intervention, Comparison, Outcomes) questions with grading of the evidence according to the GRADE (Grading of Recommendations, Assessment, Development and Evaluations) methodology and complementary narrative questions agreed on by both societies.
Eur Respir J
September 2025
Department of Rheumatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
Background: Interstitial lung disease (ILD) is a frequent manifestation of connective tissue diseases (CTDs) and is associated with high morbidity and mortality. Clinical practice guidelines to standardise screening, diagnosis, treatment and follow-up for CTD-ILD are of high importance for optimised patient care.
Methods: A European Respiratory Society and European Alliance of Associations for Rheumatology task force committee, composed of pulmonologists, rheumatologists, pathologists, radiologists, methodologists and patient representatives, developed recommendations based on PICO (Patients, Intervention, Comparison, Outcomes) questions with grading of the evidence according to the GRADE (Grading of Recommendations, Assessment, Development and Evaluations) methodology and complementary narrative questions agreed on by both societies.