MicroRNAs prevent the generation of autoreactive antibodies.
MicroRNAs prevent the generation of autoreactive antibodies.
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DOI:
10.1016/j.immuni.2010.11.010
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发表时间:
2010-11-24
期刊:
影响因子:
32.4
通讯作者:
Ramiro AR
中科院分区:
文献类型:
--
作者:
Belver L;de Yébenes VG;Ramiro AR
MicroRNAs have been shown critical for a number of aspects of immune system regulation and function. Here we have examined the role of microRNAs in terminal B cell differentiation by analysing Cd19-Creki/+ Dicerfl/fl mice. We found that in the absence of Dicer the transitional and marginal zone (MZ) B cell compartments are overrepresented, and follicular (FO) B cell generation is impaired. microRNA analysis reveals that miR185, a microRNA overexpressed in FO cells, dampens BCR signalling through Btk downregulation. Dicer deficient B cells have a skewed BCR repertoire with hallmarks of autoreactivity, which correlates with high titers of autoreactive antibodies in serum and autoimmune features in females. Together, our results reveal a crucial role of microRNAs in late B cell differentiation and in the establishment of B cell tolerance.
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影响因子:
11.4
作者:
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通讯作者:
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影响因子:
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DOI:
10.1084/jem.20011453
发表时间:
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期刊:
The Journal of experimental medicine
影响因子:
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32.4
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DOI:
10.1073/pnas.0605944103
发表时间:
2006-09-12
影响因子:
11.1
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