Saturday May 27th 2017

In multiple sclerosis, oligoclonal bands connect to peripheral B‐cell responses

ObjectiveTo determine to what extent oligoclonal band (OCB) specificities are clonally interrelated and to what degree they are associated with corresponding B‐cell responses in the peripheral blood (PB) of multiple sclerosis (MS) patients. MethodsMass‐spectrometric proteomic analysis of isoelectric focused (IEF) cerebrospinal fluid (CSF) immunoglobulin G (IgG) was used in combination with next‐generation deep‐immune repertoire sequencing of PB and CSF IgG heavy chain variable regions from MS patients. ResultsWe find evidence for ongoing stimulation and maturation to antibody‐expressing B cells to occur primarily inside the central nervous system (CNS) compartment. B cells participating in OCB production can also be identified in PB; these cells appear to migrate across the blood…

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In multiple sclerosis, oligoclonal bands connect to peripheral B‐cell responses

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