Effects of aging on B cell function.

Effects of aging on B cell function.
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DOI:
10.1016/j.coi.2009.06.001
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发表时间:
2009-08
影响因子:
7
通讯作者:
Blomberg BB
Blomberg BB
中科院分区:
医学2区
文献类型:
--
作者:
Frasca D;Blomberg BB

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在人类和动物模型中,对疫苗和传染性病原体作出最佳免疫反应的能力随着年龄的增长而下降。最近的研究表明,老年小鼠和人类存在固有的B细胞缺陷,包括Ig类开关重组(CSR)、激活诱导胞苷脱氨酶(AID)和E47转录因子的减少。对体细胞超突变(SHM)的影响因所研究的系统而异。增加AID可改善小鼠CSR,但不能改善SHM。报道的人类B细胞亚群的微阵列分析现在可以用来描述随着年龄增长的B细胞缺陷,所有提出的进展应该导致选择药物来改善老年人的免疫反应。
Ability to make an optimal immune response to vaccines and infectious agents declines with age in humans and animal models. Recent advances have shown intrinsic B cell defects in aged mice and humans, including decreases in Ig class switch recombination (CSR), activation-induced cytidine deaminase (AID), and E47 transcription factor. Effects on somatic hypermutation (SHM) have been varied depending on the system studied. Increase of AID in mice has shown improved CSR but not SHM. The reported microarray analysis of human B cell subsets may now be used to delineate B cell defects with aging and all the advances presented should lead to selecting agents for improved immune response in the elderly.
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