Unlabelled: Lupus erythematosus (LE) has a broad clinical spectrum from exclusively skin damage (chronic discoid lupus-DLE or subacute lupus erythematosus-SCLE) to systemic, multiorgan disease (involving skin, joints, kidney, central nervous system). LE is characterized by an autoimmune component. SCLE is characterized by erythemato-squamous lesions mainly in photoexposed areas. Apoptosis (programmed cellular death) is essential for normal embryogenesis and for normal tissue homeostasis and control. Inefficient apoptotic cell clearance has been correlated with inflammatory diseases and autoimmunity outburst. This study evaluates histological and immunohistochemical expression ofpro-apoptotic markers in patients with SCLE.
Materials And Methods: 20 patients with SCLE and 10 healthy controls were selected. Biopsies from skin lesions were performed. Biopsies were evaluated for immunohistochemical expression of caspase 3, CD25, CD35, CD21, CD36, CD68, CD31, IgM detection, T and B cell markers.
Results: In the inflammatory cells population we distinguished T lymphocytes, rare B lymphocytes, dendritic cells and macrophages. Within the lymphocyte population IL-2 receptor (CD25) expression was low but caspase 3 expression was intense in lymphocytes, epithelial cells and pericytes. Basal epithelial vacuolations were common. Phagocytic-cell and lymphocytic expression of CD35 (complement receptor 1-CR1) and CD21 (complement receptor 2-CR2) were lower when compared to healthy controls.
Conclusions: In SCLE patients we observed lymphocytic, epithelial and pericytal cell apoptosis and CR1 and CR2 expression are lower in professional phagocytes, suggesting a delay in the uptake of apoptotic bodies.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Cardiovascular disease risk in Korean patients with systemic lupus erythematosus compared to diabetes mellitus and the general population.
Sci Rep
January 2025
Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, 04763, Republic of Korea.
To evaluate the incidence and risk of cardiovascular disease (CVD) among Korean patients with systemic lupus erythematosus (SLE) comparing them to diabetes patients and the general population. This nationwide cohort study focused on incident SLE patients aged over 40 years, matched with diabetes patients and the general population (1:4:4 ratio). CVD was defined as ischaemic heart disease, ischaemic stroke, and cardiac arrest.
View Article and Find Full Text PDFMetabolic profiles of cutaneous lupus have abnormalities in the nicotinamide adenine dinucleotide pathway.
Lupus Sci Med
January 2025
Dermatology, The University of Texas Southwestern Medical Center, Dallas, Texas, USA
Objective: Metabolic reprogramming plays a critical role in modulating the innate and adaptive immune response, but its role in cutaneous autoimmune diseases, such as cutaneous lupus erythematosus (CLE), is less well studied. An improved understanding of the metabolic pathways dysregulated in CLE may lead to novel treatment options, biomarkers and insights into disease pathogenesis. The objective was to compare metabolomic profiles in the skin and sera of CLE and control patients using liquid chromatography-mass spectrometry (LC-MS).
View Article and Find Full Text PDFTrends in work participation among patients with inflammatory rheumatic musculoskeletal diseases (iRMDs): Data from the German National Database (2010-2022).
RMD Open
January 2025
Epidemiology and Health Services Research, German Rheumatology Research Center, Berlin, Germany.
Objective: To analyse work participation among patients with inflammatory rheumatic musculoskeletal diseases (iRMDs), namely rheumatoid arthritis (RA), axial spondyloarthritis (axSpA), psoriatic arthritis (PsA), systemic lupus erythematosus (SLE), systemic sclerosis (SSc) and ANCA-associated vasculitis (AAV).
Methods: A cross-sectional sample of 16 421 patients from the National Database of the German Collaborative Arthritis Centers, aged <65 years were analysed. For each diagnosis, yearly rates of absenteeism, employment and disability pensions were analysed from 2010 to 2022.
The presence of cutaneous lupus in systemic lupus erythematosus is associated with an increased risk of mental health disorders: a large-scale, retrospective cohort study.
J Am Acad Dermatol
January 2025
Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD. Electronic address:
Exploring Bidirectional Causal Relationships between Antibody-Mediated Immune Responses to Infectious Agents and Systemic Lupus Erythematosus through Mendelian Randomization and Meta-Analyses.
Microb Pathog
January 2025
Department of Clinical Laboratory, The First People's Hospital of Lianyungang, The Affiliated Lianyungang Hospital of Xuzhou Medical University, The First Affiliated Hospital of Kangda College of Nanjing Medical University, Lianyungang, Jiangsu Province, China. Electronic address:
Background: Previous investigations into the causal relationship between infections and systemic lupus erythematosus (SLE) have yielded controversial results. This study delves into the bidirectional causal relationships between various infectious agents and SLE, employing two-sample Mendelian randomization (MR) from an immunological perspective.
Methods: Utilizing genome-wide association study (GWAS) data for 46 antibody-mediated immune responses (AMIRs) to 13 pathogens and three distinct SLE datasets, we employed Bayesian Weighted MR (BWMR) and inverse variance weighted (IVW) methods to ascertain causal links, supplemented by meta-analysis to resolve inconsistencies.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!