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TLR7 responses in glomerular macrophages accelerate the progression of glomerulonephritis in NZBWF1 mice.
Int Immunol
January 2025
Division of Innate Immunity, The Institute of Medical Science, The University of Tokyo; Minato-ku, Tokyo 108-8639, Japan.
Systemic lupus erythematosus (SLE) is a systemic autoimmune disease characterized by the production of autoantibodies and damage to multiple organs. Glomerulonephritis, a manifestation involving glomerular deposition of immune complexes and complement components, significantly contributes to disease morbidity. Although the endosomal single-stranded RNA sensor TLR7 is known to drive glomerulonephritis by promoting autoantibody production in B cells, the contribution of macrophage TLR7 responses to glomerulonephritis remains poorly understood.
View Article and Find Full Text PDFAutoimmunity affects 10% of the population. Within this umbrella, autoantibody-mediated diseases targeting one autoantigen provide a unique opportunity to comprehensively understand the developmental pathway of disease-causing B cells and autoantibodies. While such autoreactivities are believed to be generated during germinal centre reactions, the roles of earlier immune checkpoints in autoantigen-specific B cell tolerance are poorly understood.
View Article and Find Full Text PDFDurvalumab-induced Type 1 Diabetes in a Patient With Pre-existing GADA-positive Diabetes and Preserved Insulin Secretion.
JCEM Case Rep
February 2025
Department of Medical Oncology, Kameda General Hospital, Chiba 296-0041, Japan.
Predicting the onset of type 1 diabetes mellitus (T1D) in patients treated with immune checkpoint inhibitors (ICI) remains challenging. ICI-induced T1D (ICI-T1D) is a rare but serious complication that leads to complete insulin depletion. While diabetes-associated autoantibodies, such as glutamic acid decarboxylase antibodies (GADA), are typically absent in non-ICI-related fulminant T1D, they are relatively common in ICI-T1D.
View Article and Find Full Text PDFA case of relapsed gAChR-positive autoimmune autonomic ganglionopathy treated by plasma exchange and mycophenolate mofetil.
Front Neurol
January 2025
Department of Neurology, The General Hospital of Western Theater Command, Chengdu, Sichuan, China.
Autoimmune autonomic ganglionopathy (AAG) is a rare and acquired immune-mediated disease that leads to wide autonomic failure, mainly characterized by orthostatic hypotension, gastrointestinal dysfunction, anhidrosis and poorly reactive pupils. This disorder is usually associated with autoantibodies to the ganglionic nicotinic acetylcholine receptor (gAChR-Ab). In this study, we describe a case of a gAChR-Ab-positive AAG patient with two therapeutic stages.
View Article and Find Full Text PDFMicrobiota and immune dynamics in rheumatoid arthritis: Mechanisms and therapeutic potential.
Best Pract Res Clin Rheumatol
January 2025
Department of Rheumatology and Immunology, Peking University People's Hospital, No. 11, Xizhimen South Street, Xicheng District, Beijing, 100044, China; Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), No. 11, Xizhimen South Street, Xicheng District, Beijing, 100044, China; Division of Rheumatology, Department of Medicine, University of Colorado, No. 11, Xizhimen South Street, Xicheng District, Aurora, CO, 80045, USA. Electronic address:
Rheumatoid arthritis (RA) is a complex autoimmune disease with growing evidence implicating the microbiota as a critical contributor to its pathogenesis. This review explores the multifaceted roles of microbial dysbiosis in RA, emphasizing its impact on immune cell modulation, autoantibody production, gut barrier integrity, and joint inflammation. Animal models reveal how genetic predisposition and environmental factors interact with specific microbial taxa to influence disease susceptibility.
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