ICOS receptor instructs T follicular helper cell versus effector cell differentiation via induction of the transcriptional repressor Bcl6.
ICOS receptor instructs T follicular helper cell versus effector cell differentiation via induction of the transcriptional repressor Bcl6.
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DOI:
10.1016/j.immuni.2011.03.023
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发表时间:
2011-06-24
期刊:
影响因子:
32.4
通讯作者:
Crotty S
中科院分区:
文献类型:
--
作者:
Choi YS;Kageyama R;Eto D;Escobar TC;Johnston RJ;Monticelli L;Lao C;Crotty S
The nature of follicular helper CD4+ T (Tfh) cell differentiation remains controversial, including the minimal signals required for Tfh differentiation, and the time at which Tfh differentiation occurs. Here we determine that Tfh development initiates immediately during dendritic cell (DC) priming in vivo. We demonstrate that inducible costimulator (ICOS) provides a critical early signal to induce the transcription factor Bcl6, and Bcl6 then induces CXCR5, the canonical feature of Tfh cells. Strikingly, a bifurcation between Tfh and effector Th cells was measurable by the second cell division of CD4+ T cells, at day 2 after an acute viral infection: IL2Rαint cells expressed Bcl6 and CXCR5 (Tfh cell program), whereas IL2Rαhi cells exhibited strong Blimp1 expression that repressed Bcl6 (effector Th cell program). Virtually complete polarization between Bcl6+ Tfh cells and Blimp1+ effector Th cell populations developed by 72 hours, even without B cells. Tfh cells were subsequently lost in the absence of B cells, demonstrating a B cell requirement for maintenance of Bcl6 and Tfh cell commitment via sequential ICOS signals.
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影响因子:
30.5
作者:
通讯作者:
--
DOI:
10.1084/jem.20081571
发表时间:
2009-01-16
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Dienz O;Eaton SM;Bond JP;Neveu W;Moquin D;Noubade R;Briso EM;Charland C;Leonard WJ;Ciliberto G;Teuscher C;Haynes L;Rincon M
通讯作者:
Rincon M
DOI:
10.1073/pnas.0911573106
发表时间:
2009-12-01
影响因子:
11.1
作者:
Gigoux, Mathieu;Shang, Jijun;Suh, Woong-Kyung
通讯作者:
Suh, Woong-Kyung
影响因子:
64.8
作者:
Crotty, S;Kersh, EN;Ahmed, R
通讯作者:
Ahmed, R
影响因子:
20.3
作者:
Eddahri, Fouad;Denanglaire, Sebastien;Andris, Fabienne
通讯作者:
Andris, Fabienne