O4-09-06: CLONALLY EXPANDED CD8 T CELLS PATROL ALZHEIMER'S CEREBROSPINAL FLUID
نویسندگان
چکیده
منابع مشابه
Antibodies produced by clonally expanded plasma cells in multiple sclerosis cerebrospinal fluid.
OBJECTIVE Intrathecal IgG synthesis, persistence of bands of oligoclonal IgG, and memory B-cell clonal expansion are well-characterized features of the humoral response in multiple sclerosis (MS). Nevertheless, the target antigen of this response remains enigmatic. METHODS We produced 53 different human IgG1 monoclonal recombinant antibodies (rAbs) by coexpressing paired heavy- and light-chai...
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T cell responses to the product of the minor lymphocyte stimulatory locus Mls-1a involve the selective use of TCR V beta domains (especially V beta 6 and V beta 8.1) and are generally considered to be restricted to the CD4+ mature subset. We show here that CD8+ (presumably MHC class I-restricted) T cells bearing V beta 6 or V beta 8.1 also respond preferentially to Mls-1a determinants either in...
متن کاملOligoclonal expansion of memory CD8+ T cells in cerebrospinal fluid from multiple sclerosis patients.
Multiple sclerosis is a chronic inflammatory demyelinating disease of the CNS. Although the aetiology of multiple sclerosis is still unknown, it is widely believed that T cells play a central role in its pathogenesis. To identify and characterize disease-relevant T cells, we analysed CD4+ and CD8+ T cells freshly isolated from the CSF and peripheral blood of 36 multiple sclerosis patients for t...
متن کاملLongitudinal studies of clonally expanded CD8 T cells reveal a repertoire shrinkage predicting mortality and an increased number of dysfunctional cytomegalovirus-specific T cells in the very elderly.
The age-associated decrease in functionality of the human immune system is thought to have a negative impact on the capacity to provide protection against infection, in turn leading to increased incidence of mortality. In a previous longitudinal study of octogenarians, we identified an immune risk phenotype (IRP) in the very elderly defined by an inverted CD4/CD8 ratio, which was associated wit...
متن کاملIdentification of clonally expanded T cells in rheumatoid arthritis using a sequence enrichment nuclease assay.
Identification of expanded clones engaged in immune and autoimmune responses is still imperfect, since they are often diluted by irrelevant cells expressing diverse specificities. To efficiently characterize T cell receptors expressed by clonally expanded lymphocytes in rheumatoid arthritis (RA) and other inflammatory conditions, we developed an assay system, termed sequence enrichment nuclease...
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ژورنال
عنوان ژورنال: Alzheimer's & Dementia
سال: 2019
ISSN: 1552-5260
DOI: 10.1016/j.jalz.2019.06.4793