A nonredundant role for IL-21 receptor signaling in plasma cell differentiation and protective type 2 immunity against gastrointestinal helminth infection.

A nonredundant role for IL-21 receptor signaling in plasma cell differentiation and protective type 2 immunity against gastrointestinal helminth infection.
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DOI:
10.4049/jimmunol.1001703
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发表时间:
2010-11-15
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
通讯作者:
Mohrs M
Mohrs M
中科院分区:
其他
文献类型:
--
作者:
King IL;Mohrs K;Mohrs M

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Pathogen-specific Ab production following infection with the gut-dwelling roundworm Heligmosomoides polygyrus is critical for protective immunity against reinfection. However, the factors required for productive T cell–B cell interactions in the context of a type 2-dominated immune response are not well defined. In the present study, we identify IL-21R signaling as a critical factor in driving pathogen-specific plasma cell differentiation and protective immunity against H. polygyrus in mice. We show that B cells require direct IL-21R signals to differentiate into CD138+ plasma cells. In contrast, IL-21R signaling is dispensable for germinal center formation, isotype class switching, and Th2 and T follicular helper cell differentiation. Our studies demonstrate a selective role for IL-21 in plasma cell differentiation in the context of protective antiparasitic type 2 immunity.
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