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Sarcoidosis and chronic beryllium disease are noninfectious lung diseases that are characterized by the presence of noncaseating granulomatous inflammation. Chronic beryllium disease is caused by occupational exposure to beryllium containing particles, whereas the etiology of sarcoidosis is not known. Genetic susceptibility for both diseases is associated with particular MHC class II alleles, and CD4 T cells are implicated in their pathogenesis. The innate immune system plays a critical role in the initiation of pathogenic CD4 T cell responses as well as the transition to active lung disease and disease progression. In this review, we highlight recent insights into Ag recognition in chronic beryllium disease and sarcoidosis. In addition, we discuss the current understanding of the dynamic interactions between the innate and adaptive immune systems and their impact on disease pathogenesis.
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http://dx.doi.org/10.4049/jimmunol.2101159 | DOI Listing |
Chest
July 2025
Departments of Pneumology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Background: Chronic beryllium disease (CBD) is considered a phenocopy of sarcoidosis, generally caused by occupational exposure to beryllium. Its diagnosis relies on the demonstration of beryllium sensitization by the beryllium lymphocyte proliferation test (BeLPT).
Research Question: How well does the BeLPT discriminate between CBD and sarcoidosis in patients with suspected beryllium exposure and what are the clinical characteristics of these 2 groups?
Study Design And Methods: BeLPT results and clinical characteristics of patients with suspected beryllium exposure were retrospectively analyzed.
Ecotoxicol Environ Saf
July 2025
Department of Public Health, And Department of National Clinical Research Center for Child Health, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China. Electronic address:
Background: Several studies have demonstrated that prolonged exposure to PM is associated with elevated risks of developing ischemic stroke (IS). However, evidence on the association of PM components with IS is still lacking. Thus, we aimed to estimate the association of 15 chemical components of PM with risk of IS in a cohort study.
View Article and Find Full Text PDFJ Appl Toxicol
September 2025
Department of Preventive Medicine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China.
Beryllium and its compounds are classified as carcinogens, and prolonged exposure can trigger chronic beryllium disease. The Janus kinase-signal transducer and activator of transcription (JAK-STAT) signaling is known to play a critical role in the development and progression of numerous diseases. Leukemia inhibitory factor (LIF), a key upstream cytokine of the JAK-STAT pathway, has been implicated in regulating inflammatory responses and epithelial-mesenchymal transition (EMT) in various diseases.
View Article and Find Full Text PDFEnviron Pollut
June 2025
Department of Medicine, University of British Columbia, Canada.
Guatemala has the highest child stunting prevalence in the Americas and is ranked sixth internationally. This paper examines concentrations of toxic metals and metalloids in the breastmilk of Mayan women in the Lake Atitlán watershed and explores potential relationships with stunting prevalence and demographic parameters to guide future research. We completed a cross-sectional study in 2022 (n = 80 mother/infant dyads) with 20 mother/infant dyads from each of four communities: San Juan La Laguna, San Pedro La Laguna, Panajachel, and Santiago Atitlán.
View Article and Find Full Text PDFChest
April 2025
Department of Medicine, King Faisal Specialist Hospital and Research Centre, Madinah, Saudi Arabia.
A 57-year-old man presented to the hospital with a 6-year history of slowly progressive persistent cough, shortness of breath, and wheezing. He had been prescribed budesonide and oxygen therapy 2 months prior for presumable asthma, but his symptoms had not subsided. He had been intermittently using 2 L oxygen via nasal canula with exertional activities until the day of hospitalization.
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