کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6020504 1580413 2013 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Autoantigen induced clonal expansion in immortalized B cells from the peripheral blood of multiple sclerosis patients
موضوعات مرتبط
علوم زیستی و بیوفناوری ایمنی شناسی و میکروب شناسی ایمونولوژی
پیش نمایش صفحه اول مقاله
Autoantigen induced clonal expansion in immortalized B cells from the peripheral blood of multiple sclerosis patients
چکیده انگلیسی
We studied Ig heavy chain (VDJ) sequences and antigen reactivity of 412 immortalized B cell lines from the peripheral blood of 10 multiple sclerosis (MS) patients, 4 clinically isolated syndrome (CIS) patients and 6 healthy controls (HCs). 78/238 (32.8%) MS and CIS B cell lines were part of 9 clonally expanded B cell populations, of which 5 were present in multiple patients. Increased VH1 gene family usage was evidenced for MS B cells, with 29.2% expressing VH1-69. Affinity maturation in MS and CIS was indicated by increased Ig VDJ mutations. Autoantibody producing B cells reactive to intracellular antigens were significantly higher in MS (25%) and CIS (28%) patients than in HCs (5%), including 3/9 expanded B cell clones. Specificity for phosphatidylcholine was observed for 1/9 B cell clones. These findings indicate clonally expanded autoreactive B cells with affinity maturation in the peripheral blood in MS and CIS.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Neuroimmunology - Volume 261, Issues 1–2, 15 August 2013, Pages 98-107
نویسندگان
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