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Coexistence of cardiac sarcoidosis and arrhythmogenic cardiomyopathy-associated genetic variants: a multicentre case-control study.
Heart
January 2025
Department of Cardiology, University Hospital Zurich, Zurich, Switzerland
Background: Cardiac sarcoidosis (CS) is a chronic inflammatory disease characterised by non-caseating granulomas, while arrhythmogenic cardiomyopathy (ACM) is a genetic condition mainly affecting desmosomal proteins. The coexistence of CS and genetic variants associated with ACM is not well understood, creating challenges in diagnosis and management. This study aimed to describe the clinical, imaging and genetic features of patients with both conditions.
View Article and Find Full Text PDFAlveolar nitric oxide concentration as a potential biomarker of fibrosis and active disease in pulmonary sarcoidosis: a pilot study.
J Breath Res
January 2025
Department of Clinical and Biological Sciences, University of Turin, Regione Gonzole 10, Orbassano, 10043, ITALY.
Sarcoidosis is considered a T-helper (Th) 1 related disease, but a transition from Th1 to Th2 pathway activation has been postulated in sarcoidosis-associated pulmonary fibrosis (SAPF). Fraction of exhaled nitric oxide (FENO) is a marker of Th2 airway inflammation, but alveolar concentration of nitric oxide (CANO) can be measured to assess Th2 inflammation in the periphery of the lung. The aim of this study is to assess whether CANO can be considered a biomarker of SAPF or active pulmonary sarcoidosis.
View Article and Find Full Text PDFNovel Sarcoidosis Epitope Augments MHCII, CD80/CD86 Expression, Promotes B-Cell Differentiation and IgG Production.
Am J Respir Cell Mol Biol
January 2025
Wayne State University, Division of Pulmonary, Critical Care and Sleep Medicine, Detroit, Michigan, United States;
Numerous chronic human disorders are associated with immune activation by obscure antigen(s). We identified a novel sarcoidosis-epitope (ChainA) by immunoscreening of a novel T7 phage library and confirmed an abundance of ChainA IgG-antibody in sarcoidosis. We tested whether ChainA epitope elicits immune responses through B-cell activation, plasma cell differentiation and antibody production.
View Article and Find Full Text PDFEnhanced fibrotic potential of COL1A1NR4A1 fibroblasts in ischemic heart revealed by transcriptional dynamics heterogeneity analysis at both bulk and single-cell levels.
Front Cardiovasc Med
January 2025
Department of Cardiology, Liuzhou Workers' Hospital, The Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou, China.
Background: Fibroblasts in the fibrotic heart exhibit a heterogeneous biological behavior. The specific subsets of fibroblasts that contribute to progressive cardiac fibrosis remain unrevealed. Our aim is to identify the heart fibroblast (FB) subsets that most significantly promote fibrosis and the related critical genes as biomarkers for ischemic heart disease.
View Article and Find Full Text PDFClinical Experience with TNF Inhibition and Longitudinal Image Monitoring in Osseous Sarcoidosis.
J Clin Rheumatol
January 2025
From the Department of Rheumatology, Brooke Army Medical Center, Fort Sam Houston, TX.
Background: In this case series, we present longitudinal imaging surveillance of 6 cases of osseous sarcoidosis, each of which was effectively treated with tumor necrosis factor (TNF) inhibition.
Methods: We identified 6 patients from Brooke Army Medical Center with osseous sarcoidosis, who were treated with TNF inhibition and followed with longitudinal imaging studies. Cases of osseous sarcoidosis were defined as having pathologic evidence of noncaseating granulomas on bone biopsy and evidence of osseous lesions on imaging attributable to sarcoidosis by the radiologist, treating clinician, and reviewer.
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