Integrin CD11b provides a new marker of pre-germinal center IgA+ B cells in murine Peyer's patches.
Integrin CD11b provides a new marker of pre-germinal center IgA+ B cells in murine Peyer's patches.
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整合素CD 11 B为小鼠派伊尔集合淋巴结中的前生殖中心伊加+ B细胞提供了新的标记物。
DOI:
10.1093/intimm/dxab113
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发表时间:
2022-04-20
影响因子:
4.4
通讯作者:
Shinkura, Reiko
中科院分区:
文献类型:
--
作者:
Gao, Peng;Adachi, Takahiro;Okai, Shinsaku;Morita, Naoki;Kitamura, Daisuke;Shinkura, Reiko
Activated B cells can enter germinal centers (GCs) for affinity maturation to produce high-affinity antibodies. However, which activated B cells will enter GCs remains unknown. Here, we found a small population of CD11b+IgA+ B cells located outside of GCs in murine Peyer’s patches (PPs). After injection of the CD11b+IgA+ PP B cells into a PP of a recipient mouse, they entered GCs forty hours later. They expressed GC surface markers and pre-GC B cell genes, suggesting that CD11b provides a novel surface marker of pre-GC IgA+ B cells in murine PPs. Furthermore, independently of dendritic cell activation, CD11b expression on B cells can be induced by bacterial antigens, such as pam3CSK4 and heat-killed Escherichia coli in vitro. In addition, mice orally administered with pam3CSK4 or heat-killed E. coli increased the number of PP GC B cells within two days, and enhanced the mucosal antigen-specific IgA response. Our results demonstrate that the induction of CD11b on B cells is a promising marker for selecting an effective mucosal vaccine adjuvant. A crucial role for CD11b in germinal-center reactions
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影响因子:
100.3
作者:
Chen, Kang;Magri, Giuliana;Grasset, Emilie K.;Cerutti, Andrea
通讯作者:
Cerutti, Andrea
影响因子:
16.6
作者:
通讯作者:
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影响因子:
28.3
作者:
Lachmandas, Ekta;Boutens, Lily;Stienstra, Rinke
通讯作者:
Stienstra, Rinke
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4.6
作者:
Figenschau SL;Knutsen E;Urbarova I;Fenton C;Elston B;Perander M;Mortensen ES;Fenton KA
通讯作者:
Fenton KA
影响因子:
32.4
作者:
Mesin, Luka;Ersching, Jonatan;Victora, Gabriel D.
通讯作者:
Victora, Gabriel D.