Persistence of intrathecal oligoclonal B cells and IgG in multiple sclerosis

Tomescu-Baciu A1, Johansen JN1, Holmøy T2, Greiff V3, Stensland M4, de Souza GA4, Vartdal F1, Lossius A5; 1 Department of Immunology and Transfusion Medicine, Faculty of Medicine, University of Oslo and Oslo University Hospital Rikshospitalet, Oslo, Norway. 2 Department of Neurology, Akershus University Hospital, Lørenskog, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway. 3 Department of Immunology and Transfusion Medicine, Faculty of Medicine, University of Oslo and Oslo University Hospital Rikshospitalet, Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway. 4 Department of Immunology and Transfusion Medicine, Faculty of Medicine, University of Oslo and Oslo University Hospital Rikshospitalet, Oslo, Norway; Proteomics Core Facility, Oslo University Hospital Rikshospitalet, NO-0372 Oslo, Norway. 5 Department of Immunology and Transfusion Medicine, Faculty of Medicine, University of Oslo and Oslo University Hospital Rikshospitalet, Oslo, Norway; Department of Neurology, Akershus University Hospital, Lørenskog, Norway. Electronic address: andreas.lossius@medisin.uio.no.