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- W4313359966 abstract "Abstract Autoantibodies that arise in autoimmunity can be present years to decades prior to the onset of disease manifestations. This suggests that the initial autoimmune trigger involves a peripheral lymphoid component, which ultimately drives disease pathology in local tissues later in life. Here we show Sjögren’s Syndrome manifestations that develop in aged NOD.H-2h4 mice were driven by and dependent on peripheral dysregulation that arose in early life. Specifically, elimination of spontaneous germinal centers that developed in spleens of young NOD.H-2h4 mice by transient blockade of CD40 ligand (CD40L) or splenectomy abolished Sjögren’s pathology of aged mice. Strikingly, a single injection of anti-CD40L at 4 weeks-of-age prevented tertiary follicle neogenesis and greatly blunted the formation of key autoantibodies implicated in glandular pathology. Microarray profiling of salivary gland characterized the expression pattern of genes that increased with disease progression and showed early anti-CD40L greatly repressed B cell function, while having a broader effect on multiple biological pathways including IL-12 and interferon signaling. Importantly, a single, prophylactic treatment with anti-CD40L also inhibited the development of autoimmune thyroiditis and diabetes in NOD.H-2h4 and NOD mice, respectively, supporting a key role for CD40L in the pathophysiology of several autoimmune models. These results suggest that early peripheral immune dysregulation gives rise to autoimmune manifestations later in life and for diseases pre-dated by autoantibodies, early prophylactic intervention with biologics may prove efficacious." @default.
- W4313359966 created "2023-01-06" @default.
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- W4313359966 date "2017-05-01" @default.
- W4313359966 modified "2023-10-18" @default.
- W4313359966 title "Autoimmune manifestations in aged mice arise from early-life immune dysregulation" @default.
- W4313359966 doi "https://doi.org/10.4049/jimmunol.198.supp.54.1" @default.
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