Identification of an interleukin (IL)-25-dependent cell population that provides IL-4, IL-5, and IL-13 at the onset of helminth expulsion.

Identification of an interleukin (IL)-25-dependent cell population that provides IL-4, IL-5, and IL-13 at the onset of helminth expulsion.
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DOI:
10.1084/jem.20051615
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发表时间:
2006-04-17
期刊:
The Journal of experimental medicine
影响因子:
--
通讯作者:
McKenzie AN
McKenzie AN
中科院分区:
其他
文献类型:
--
作者:
Fallon PG;Ballantyne SJ;Mangan NE;Barlow JL;Dasvarma A;Hewett DR;McIlgorm A;Jolin HE;McKenzie AN

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2型免疫涉及先天性和适应性免疫应答的协调调节,可以防止蠕虫寄生虫感染,但在不适当的激活后可能导致过敏和哮喘。我们证明,il 25 −/−小鼠表现出低效的巴西日本圆线虫驱逐和延迟的T辅助细胞2细胞产生细胞因子。我们进一步确定了白细胞介素(IL)-25在蠕虫感染过程中调节一种新的IL-4-、IL-5-、IL-13产生的非B/非T(NBNT)、c-kit+、Fc β R1−细胞群体中的关键作用。在il 25 −/−小鼠中,这一群体的缺陷与N效率低下相关。巴西驱逐相反,体内给予重组IL-25诱导NBNT、c-kit+、Fc γ R1−细胞的出现,并导致快速驱虫,这是T和B细胞非依赖性的,但依赖于2型细胞因子。我们证明,这些IL-25调节的细胞迅速出现在引流淋巴结,暗示它们作为2型细胞因子的来源,在启动蠕虫驱逐。
Type 2 immunity, which involves coordinated regulation of innate and adaptive immune responses, can protect against helminth parasite infection, but may lead to allergy and asthma after inappropriate activation. We demonstrate that il25−/− mice display inefficient Nippostrongylus brasiliensis expulsion and delayed cytokine production by T helper 2 cells. We further establish a key role for interleukin (IL)-25 in regulating a novel population of IL-4–, IL-5–, IL-13–producing non–B/non–T (NBNT), c-kit+, FcɛR1− cells during helminth infection. A deficit in this population in il25−/− mice correlates with inefficient N. brasiliensis expulsion. In contrast, administration of recombinant IL-25 in vivo induces the appearance of NBNT, c-kit+, FcɛR1− cells and leads to rapid worm expulsion that is T and B cell independent, but type 2 cytokine dependent. We demonstrate that these IL-25–regulated cells appear rapidly in the draining lymph nodes, implicating them as a source of type 2 cytokines during initiation of worm expulsion.
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