Induction of Short NFATc1/αA Isoform Interferes with Peripheral B Cell Differentiation.
Induction of Short NFATc1/αA Isoform Interferes with Peripheral B Cell Differentiation.
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诱导短NFATC1/αA同工型会干扰周围B细胞分化。
DOI:
10.3389/fimmu.2018.00032
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发表时间:
2018
影响因子:
7.3
通讯作者:
Serfling E
中科院分区:
文献类型:
--
作者:
Muhammad K;Rudolf R;Pham DAT;Klein-Hessling S;Takata K;Matsushita N;Ellenrieder V;Kondo E;Serfling E
In lymphocytes, immune receptor signals induce the rapid nuclear translocation of preformed cytosolic NFAT proteins. Along with co-stimulatory signals, persistent immune receptor signals lead to high levels of NFATc1/αA, a short NFATc1 isoform, in effector lymphocytes. Whereas NFATc1 is not expressed in plasma cells, in germinal centers numerous centrocytic B cells express nuclear NFATc1/αA. When overexpressed in chicken DT40 B cells or murine WEHI 231 B cells, NFATc1/αA suppressed their cell death induced by B cell receptor signals and affected the expression of genes controlling the germinal center reaction and plasma cell formation. Among those is the Prdm1 gene encoding Blimp-1, a key factor of plasma cell formation. By binding to a regulatory DNA element within exon 1 of the Prdm1 gene, NFATc1/αA suppresses Blimp-1 expression. Since expression of a constitutive active version of NFATc1/αA interfered with Prdm1 RNA expression, LPS-mediated differentiation of splenic B cells to plasmablasts in vitro and reduced immunoglobulin production in vivo, one may conclude that NFATc1/αA plays an important role in controlling plasmablast/plasma cell formation.
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DOI:
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发表时间:
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期刊:
Trends in genetics : TIG
影响因子:
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