In vivo availability of the cytokine IL-7 constrains the survival and homeostasis of peripheral iNKT cells.

In vivo availability of the cytokine IL-7 constrains the survival and homeostasis of peripheral iNKT cells.
复制标题

DOI:
10.1016/j.celrep.2021.110219
复制
发表时间:
2022-01-11
期刊:
影响因子:
8.8
通讯作者:
Park JH
Park JH
中科院分区:
生物学1区
文献类型:
--
作者:
Park JY;Won HY;DiPalma DT;Kim HK;Kim TH;Li C;Sato N;Hong C;Abraham N;Gress RE;Park JH

文献摘要

参考文献

被引文献

相似文献

了解恒定自然杀伤T(iNKT)细胞的稳态机制是iNKT细胞生物学中的关键问题。由于白细胞介素(IL)-15是胸腺生成iNKT细胞所必需的,因此IL-15也被认为是外周iNKT细胞稳态所必需的。在这里,我们描述了iNKT细胞的体内细胞因子需求,并且我们得出了令人惊讶的结论,即IL-7而不是IL-15是iNKT细胞的稳态细胞因子。采用一系列实验小鼠模型,其中IL-7或IL-15的可用性在外周组织中被操纵,无论是通过遗传工具还是通过成人胸腺切除术和细胞因子泵安装,我们证明了IL-7的丰度,而不是IL-15,限制了外周iNKT细胞池的大小。这些结果重新定义了iNKT细胞的细胞因子需求,并表明iNKT和常规αβ T细胞之间对IL-7的竞争。Park等人评估了iNKT细胞的细胞因子需求。虽然iNKT细胞的胸腺生成需要IL-15,但外周iNKT细胞的存活和稳态关键取决于IL-7而不是IL-15的可用性,揭示了iNKT细胞的细胞因子使用的二分法。
Understanding the homeostatic mechanism of invariant natural killer T (iNKT) cells is a critical issue in iNKT cell biology. Because interleukin (IL)-15 is required for the thymic generation of iNKT cells, IL-15 has also been considered necessary for the homeostasis of peripheral iNKT cells. Here, we delineated the in vivo cytokine requirement for iNKT cells, and we came to the surprising conclusion that IL-7, not IL-15, is the homeostatic cytokine for iNKT cells. Employing a series of experimental mouse models where the availability of IL-7 or IL-15 was manipulated in peripheral tissues, either by genetic tools or by adult thymectomy and cytokine pump installation, we demonstrate that the abundance of IL-7, and not IL-15, limits the size of the peripheral iNKT cell pool. These results redefine the cytokine requirement for iNKT cells and indicate competition for IL-7 between iNKT and conventional αβ T cells. Park et al. assess the cytokine requirement for iNKT cells. While IL-15 is required for the thymic generation of iNKT cells, the survival and homeostasis of peripheral iNKT cells critically depend on the availability of IL-7 and not IL-15, revealing a dichotomy in the cytokine usage of iNKT cells.
DOI: 10.4049/jimmunol.1301389
发表时间: 2013-09-15
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Colpitts SL;Stonier SW;Stoklasek TA;Root SH;Aguila HL;Schluns KS;Lefrançois L
通讯作者: Lefrançois L
DOI: 10.4049/jimmunol.1003965
发表时间: 2011-12-15
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Gordy LE;Bezbradica JS;Flyak AI;Spencer CT;Dunkle A;Sun J;Stanic AK;Boothby MR;He YW;Zhao Z;Van Kaer L;Joyce S
通讯作者: Joyce S
DOI: 10.1038/nn.3407
发表时间: 2013-07
影响因子: 25
作者:
Haddad, Rafi;Lanjuin, Anne;Madisen, Linda;Zeng, Hongkui;Murthy, Venkatesh N.;Uchida, Naoshige
通讯作者: Uchida, Naoshige
DOI: 10.4049/jimmunol.171.11.5853
发表时间: 2003-12-01
影响因子: 4.4
作者:
Burchill, MA;Goetz, CA;Farrar, MA
通讯作者: Farrar, MA
DOI: 10.1016/j.cellimm.2011.11.002
发表时间: 2012-01-01
影响因子: 4.3
作者:
Do, Jeong-su;Foucras, Gilles;Min, Booki
通讯作者: Min, Booki