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HLA-G Polymorphisms of The 3'-UTR Region Are Involved in Susceptibility to Non-Infectious Uveitis.
Ocul Immunol Inflamm
January 2025
Departamento de Inmunología, Oftalmología y ORL, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain.
Purpose: HLA-G is a non-classical HLA class I gene encoding a molecule endowed with immunomodulatory properties, playing important immunosuppressive and tolerogenic roles in immuno-privileged organs. Fluctuations in its expression levels have been correlated with the predisposition to autoinflammatory disorders, notably uveitis, characterized by inflammation of the uvea. In the present work, DNA was obtained from saliva samples of 147 Spanish patients with uveitis, with subsequent analysis focusing on the distribution of polymorphisms within the 3'UTR region of the gene (a region known to modulate the expression of the HLA-G molecule).
View Article and Find Full Text PDFThe effect of HLA genotype on disease onset and severity in CTLA-4 insufficiency.
Front Immunol
January 2025
Institute for Immunodeficiency, Center for Chronic Immunodeficiency (CCI), Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Introduction: Human Cytotoxic-T-lymphocyte-antigen-4 (CTLA-4) insufficiency caused by heterozygous germline mutations in is a complex immune dysregulation and immunodeficiency syndrome presenting with reduced penetrance and variable disease expressivity, suggesting the presence of disease modifiers that trigger the disease onset and severity. Various genetic and non-genetic potential triggers have been analyzed in CTLA-4 insufficiency cohorts, however, none of them have revealed a clear association to the disease. Multiple HLA haplotypes have been positively or negatively associated with various autoimmune diseases and inborn errors of immunity (IEI) due to the relevance of MHC in the strength of the T cell responses.
View Article and Find Full Text PDFSILAC-based quantification reveals modulation of the immunopeptidome in BRAF and MEK inhibitor sensitive and resistant melanoma cells.
Front Immunol
January 2025
Rudolf Virchow Center, Center for Integrative and Translational Bioimaging, Julius-Maximilians-Universität of Würzburg, Würzburg, Germany.
Background: The immunopeptidome is constantly monitored by T cells to detect foreign or aberrant HLA peptides. It is highly dynamic and reflects the current cellular state, enabling the immune system to recognize abnormal cellular conditions, such as those present in cancer cells. To precisely determine how changes in cellular processes, such as those induced by drug treatment, affect the immunopeptidome, quantitative immunopeptidomics approaches are essential.
View Article and Find Full Text PDFOnly IF/TA in the Histological Evaluation of Post-Reperfusion Baseline Biopsies Correlates With Kidney Transplant Outcome.
Transpl Int
January 2025
Department of Nephrology, University Hospital Rechts der Isar, Technical University of Munich, TUM School of Medicine and Health, Munich, Germany.
Here, we retrospectively evaluated the informational yield of 338 post-reperfusion kidney transplant biopsies (including 95 living donations) assessed according to BANFF for the histological characteristics interstitial fibrosis and tubular atrophy (IF/TA), glomerulosclerosis, arteriosclerosis, and acute tubular injury (ATI). Associations with delayed graft function (DGF) and death-censored graft survival were explored through Cox-regression analyses. The maximum follow-up time was 11.
View Article and Find Full Text PDFFactors affecting the efficacy of human leukocyte antigen-selected platelet provision: A large retrospective study in the United Kingdom.
Transfus Med
January 2025
Histocompatibility & Immunogenetics, NHSBT Colindale Centre, London, UK.
Background: A large, retrospective study was designed to interrogate current NHS Blood and Transplant (NHSBT) HLA matching strategies for the provision of HLA selected platelets (HLA SP) and to determine whether additional factors such as ABO blood group matching, patient diagnosis, patient and/or donor age, sex, ethnicity, age of platelet unit at transfusion and possibly seasonal variation also play a role in transfusion efficacy.
Materials And Methods: Data for 56 640 HLA SP transfusions over a 3-year period were collected. Transfusions with missing data for any factor under consideration were excluded, resulting in a cohort of 13 044 transfusions for analysis.
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