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Symptomatic primary Epstein-Barr virus (EBV) infection and elevated humoral immune responses to EBV are associated with an increased risk of developing multiple sclerosis (MS). We explored mechanisms leading to this change in EBV-specific immunity in untreated patients with MS and healthy virus carriers matched for MS-associated HLA alleles. MS patients(More)
Microglia are resident macrophage-like APCs of the CNS. To avoid escalation of inflammatory processes and bystander damage within the CNS, microglia-driven inflammatory responses need to be tightly regulated and both spatially and temporally restricted. Following traumatic, infectious, and autoimmune-mediated brain injury, NK cells have been found in the(More)
DCs activate NK cells during innate immune responses to viral infections. However, the composition and kinetics of the immunological synapse mediating this interaction are largely unknown. Here, we report the rapid formation of an immunological synapse between human resting NK cells and mature DCs. Although inhibitory NK cell receptors were polarized to(More)
EBV is a candidate trigger of rheumatoid arthritis (RA). We determined both EBV-specific T cell and B cell responses and cell-associated EBV DNA copies in patients with RA and demographically matched healthy virus carriers. Patients with RA showed increased and broadened IgG responses to lytic and latent EBV-encoded Ags and 7-fold higher levels of EBV copy(More)
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