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- W4313373844 abstract "Abstract Elevated levels of serum autoantibodies are a well-documented phenomenon in patients with Alzheimer’s disease (AD), but the nature of the autoimmunity is unclear. Triple-transgenic (3xTg-AD) mice are a well-established model that develops AD-like pathology. We observed that recent cohorts of male 3xTg-AD mice exhibit autoimmune manifestations, yet lack plaque/tangle pathology. In the current study, we identified the time course and type of autoantibodies produced during the progression and attenuation of systemic autoimmunity. Tissue samples were collected from 3xTg-AD and wild type (WT) males and females at 2, 6 and 12 months of age. Serum autoantibodies were measured by both indirect immunofluorescence and 16-antigen line immunoassay. To assess immunosuppression, serum samples from a separate cohort of mice chronically exposed to cyclophosphamide were also assessed. Several autoantibody types increased in frequency and concentration in aging 3xTg-AD mice, particularly in adult males. The most prevalent were anti-nuclear autoantibodies, particularly those targeting the nucleosomes. Among the panel of autoantibodies measured, reactivity to a single antigen (nucleosomes) was observed in the majority of samples. A few mice showed reactivity to other autoantigens, such as histones, dsDNA, RNP/Sm, AMA-M2 and rib. P. Reactivity to all autoantigens was abolished in mice exposed to the immunosuppressant cyclophosphamide. The emergence of circulating autoantibodies similar to classical autoimmune diseases (such as lupus) suggests an important, yet unreported aspect of pathology in this AD model. Future studies are aimed to elucidate the origin and role of the autoantibodies in the context of phenotype loss in 3xTg-AD males." @default.
- W4313373844 created "2023-01-06" @default.
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- W4313373844 date "2020-05-01" @default.
- W4313373844 modified "2023-10-16" @default.
- W4313373844 title "Age-Dependent Synthesis of Diverse Autoantibodies in the 3xTg-AD Model of Alzheimer’s Disease" @default.
- W4313373844 doi "https://doi.org/10.4049/jimmunol.204.supp.64.5" @default.
- W4313373844 hasPublicationYear "2020" @default.
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