Adaptive from Innate: Human IFN-γ(+)CD4(+) T Cells Can Arise Directly from CXCL8-Producing Recent Thymic Emigrants in Babies and Adults.

Adaptive from Innate: Human IFN-γ(+)CD4(+) T Cells Can Arise Directly from CXCL8-Producing Recent Thymic Emigrants in Babies and Adults.
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DOI:
10.4049/jimmunol.1700551
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发表时间:
2017-09-01
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
通讯作者:
Gibbons DL
Gibbons DL
中科院分区:
其他
文献类型:
--
作者:
Das A;Rouault-Pierre K;Kamdar S;Gomez-Tourino I;Wood K;Donaldson I;Mein CA;Bonnet D;Hayday AC;Gibbons DL

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We recently demonstrated that the major effector function of neonatal CD4+ T cells is to produce CXCL8, a prototypic cytokine of innate immune cells. In this article, we show that CXCL8 expression, prior to proliferation, is common in newly arising T cells (so-called “recent thymic emigrants”) in adults, as well as in babies. This effector potential is acquired in the human thymus, prior to TCR signaling, but rather than describing end-stage differentiation, such cells, whether isolated from neonates or adults, can further differentiate into IFN-γ–producing CD4+ T cells. Thus, the temporal transition of host defense from innate to adaptive immunity is unexpectedly mirrored at the cellular level by the capacity of human innate-like CXCL8-producing CD4+ T cells to transition directly into Th1 cells.
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