Memory T cells need CD28 costimulation to remember.

Memory T cells need CD28 costimulation to remember.
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DOI:
10.1016/j.smim.2009.02.005
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发表时间:
2009-04
影响因子:
7.8
通讯作者:
Katsikis PD
Katsikis PD
中科院分区:
医学2区
文献类型:
--
作者:
Boesteanu AC;Katsikis PD

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幼稚T细胞的活化和扩增需要CD28和TNF家族成员提供的共刺激信号。相反,多年来人们认为记忆T细胞在次级应答期间不需要CD28共刺激来扩增。这是基于体外实验,表明记忆T细胞的再激活在某种程度上不依赖于共刺激。然而,最近的体内证据对这一点提出了挑战,并表明CD 4+和CD 8+记忆T细胞都需要CD 28共刺激才能实现最大扩增和病原体清除。这一要求对宿主免疫、疫苗开发和免疫治疗具有重要意义。
The activation and expansion of naïve T cells require costimulatory signals provided by CD28 and TNF family members. In contrast, for many years it was believed that memory T cells do not require CD28 costimulation for expansion during secondary responses. This was based on in vitro experiments that suggested the re-activation of memory T cells is somewhat independent of costimulation. Recent in vivo evidence, however, has challenged this and shown that both CD4+ and CD8+ memory T cells require CD28 costimulation for maximal expansion and pathogen clearance. This requirement has important implications for host immunity, vaccine development and immunotherapeutics.
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发表时间: 1987-12-01
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