Rapid turnover of effector-memory CD4(+) T cells in healthy humans.
Rapid turnover of effector-memory CD4(+) T cells in healthy humans.
复制标题
DOI:
10.1084/jem.20040341
复制
发表时间:
2004-07-19
影响因子:
15.3
通讯作者:
Tough, DE
中科院分区:
文献类型:
--
作者:
Macallan, DC;Wallace, D;Zhang, Y;de Lara, C;Worth, AT;Ghattas, H;Griffin, GE;Beverley, PCL;Tough, DE
Memory T cells can be divided into central–memory (TCM) and effector–memory (TEM) cells, which differ in their functional properties. Although both subpopulations can persist long term, it is not known whether they are maintained by similar mechanisms. We used in vivo labeling with deuterated glucose to measure the turnover of CD4+ T cells in healthy humans. The CD45R0+CCR7− TEM subpopulation was shown to have a rapid proliferation rate of 4.7% per day compared with 1.5% per day for CD45R0+CCR7+ TCM cells; these values are equivalent to average intermitotic (doubling) times of 15 and 48 d, respectively. In contrast, the CD45RA+CCR7+ naive CD4+ T cell population was found to be much longer lived, being labeled at a rate of only 0.2% per day (corresponding to an intermitotic time of approximately 1 yr). These data indicate that human CD4+ TEM cells constitute a short-lived cell population that requires continuous replenishment in vivo.
登录
查看更多内容
DOI:
10.1084/jem.194.7.953
发表时间:
2001-10-01
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Weninger W;Crowley MA;Manjunath N;von Andrian UH
通讯作者:
von Andrian UH
DOI:
10.1084/jem.179.4.1127
发表时间:
1994-04-01
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Tough DF;Sprent J
通讯作者:
Sprent J
影响因子:
15.3
作者:
Geginat, J;Sallusto, F;Lanzavecchia, A
通讯作者:
Lanzavecchia, A
DOI:
10.1084/jem.171.3.801
发表时间:
1990-03-01
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Mackay CR;Marston WL;Dudler L
通讯作者:
Dudler L
影响因子:
2.9
作者:
Neese, RA;Siler, SQ;Hellerstein, MK
通讯作者:
Hellerstein, MK