Innate NKTγδ and NKTαβ cells exert similar functions and compete for a thymic niche
Innate NKTγδ and NKTαβ cells exert similar functions and compete for a thymic niche
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先天 NKTγδ 和 NKTαβ 细胞发挥相似的功能并竞争胸腺生态位
DOI:
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发表时间:
2012
影响因子:
5.4
通讯作者:
L. Boucontet
中科院分区:
文献类型:
--
作者:
P. Pereira;L. Boucontet
The transcriptional regulator promyelocytic leukemia zinc finger (PLZF) is highly expressed during the differentiation of natural killer T (NKT) cells and is essential for the acquisition of their effector/memory innate‐like phenotype. Staining with anti‐PLZF and anti‐NK1.1 Abs allows the definition of two subsets of NKTαβ and NKTγδ thymocytes that differ phenotypically and functionally: a PLZF+NK1.1− subset composed of mostly quiescent cells that secrete more IL‐4 than IFN‐γ upon activation and a PLZF+/−NK1.1+ subset that expresses CD127, NK1.1, and other NK‐cell markers, secrete more IFN‐γ than IL‐4 upon activation and contains a sizable fraction of dividing cells. The size of the NK1.1+ population is very tightly regulated and NK1.1+ αβ and γδ thymocytes compete for a thymic niche. Furthermore, the relative representation of the PLZF+ and NK1.1+ subsets varies in a strain‐specific manner with C57BL/6 (B6) mice containing more NK1.1+ cells and (B6 × DBA/2)F1 (B6D2F1) mice more PLZF+ cells. Consequently, activation of NKT cells in vivo is expected to result in higher levels of IL‐4 secreted in B6D2F1 mice than in B6 mice. Consistent with this possibility, B6D2F1 mice, when compared with B6 mice, contain more “innate” CD8+ thymocytes, the generation of which depends on IL‐4 secreted by NKT cells.
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影响因子:
32.4
作者:
Savage, Adam K.;Constantinides, Michael G.;Han, Jin;Picard, Damien;Martin, Emmanuel;Li, Bofeng;Lantz, Olivier;Bendelac, Albert
通讯作者:
Bendelac, Albert
影响因子:
32.4
作者:
Mendiratta, SK;Martin, WD;VanKaer, L
通讯作者:
VanKaer, L
影响因子:
7
作者:
Alonzo ES;Sant'Angelo DB
通讯作者:
Sant'Angelo DB
影响因子:
32.4
作者:
Lauritsen, Jens Peter Holst;Wong, Gladys W.;Lee, Sang-Yun;Lefebvre, Juliette M.;Ciofani, Maria;Rhodes, Michele;Kappes, Dietmar J.;Zuniga-Pflucker, Juan Carlos;Wiest, David L.
通讯作者:
Wiest, David L.
影响因子:
32.4
作者:
Griewank, Klaus;Borowski, Christine;Bendelac, Albert
通讯作者:
Bendelac, Albert