Double‐negative (DN) B cells: an under‐recognized effector memory B cell subset in autoimmunity
Author(s) -
Li Yuzi,
Li Zhanguo,
Hu Fanlei
Publication year - 2021
Publication title -
clinical & experimental immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.329
H-Index - 135
eISSN - 1365-2249
pISSN - 0009-9104
DOI - 10.1111/cei.13615
Subject(s) - immunoglobulin d , b cell , immunology , autoimmunity , effector , biology , antibody , b 1 cell , naive b cell , pathogenesis , t cell , immune system , antigen presenting cell
Summary Human B cells could be divided into four classical subsets based on CD27 and immunoglobulin (Ig)D expression. Distinct from the other three well‐studied subsets, CD27 − IgD − B cells, also termed as double‐negative (DN) B cells, have long been neglected. However, in recent years emerging evidence shows that DN B cells are unique memory B cells with important functions. They are expanded in a variety of diseases, especially in autoimmune diseases, contributing to the disease pathogenesis. Here, we briefly review the studies on DN B cells, including their origins, characteristics, subsets and roles in diseases, to try to bring new insights into this under‐recognized B cell subset.
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