Secondary lymphoid organs: responding to genetic and environmental cues in ontogeny and the immune response.

Secondary lymphoid organs: responding to genetic and environmental cues in ontogeny and the immune response.
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DOI:
10.4049/jimmunol.0804324
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发表时间:
2009-08-15
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
通讯作者:
Akirav EM
Akirav EM
中科院分区:
其他
文献类型:
--
作者:
Ruddle NH;Akirav EM

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次级淋巴器官(SLO)包括淋巴结(LNS)、脾、Peyer‘s Patches(PPS)和粘膜组织--鼻腔相关淋巴组织(NALT)、腺样体和扁桃体。在解剖学上定义较少的细胞积聚包括支气管相关淋巴组织(BALT)、隐窝和孤立淋巴滤泡(ILF)。所有SLO都能产生免疫反应和耐受性。SLO的发生依赖于协同淋巴趋化因子和细胞因子LTα、LTβ、RANKL、肿瘤坏死因子、IL-7以及IL-17的精确调控。这些因素的相对重要性因淋巴器官的不同而不同。参与这一过程的有淋巴组织启动子(LTIN)、淋巴组织诱导子(LTIND)和淋巴组织组织体(LTO)细胞。这些细胞和其他产生关键细胞因子的细胞在成人中维持SLO。类似的信号调节从炎症到异位或第三淋巴样组织(TLO)的转变。
Secondary lymphoid organs (SLOs) include lymph nodes (LNs), spleen, Peyer’s patches (PPs) and mucosal tissues- the nasal associated lymphoid tissue (NALT), adenoids, and tonsils. Less discretely anatomically defined cellular accumulations include the bronchus associated lymphoid tissue (BALT), cryptopatches, and isolated lymphoid follicles (ILFs). All SLOs serve to generate immune responses and tolerance. SLO development depends on the precisely regulated expression of cooperating lymphoid chemokines and cytokines LTα, LTβ, RANKL, TNF, IL-7, and perhaps IL-17. The relative importance of these factors varies between the individual lymphoid organs. Participating in the process are lymphoid tissue initiator (ltin), lymphoid tissue inducer (ltind), and lymphoid tissue organizer (lto) cells. These cells, and others that produce the crucial cytokines, maintain SLOs in the adult. Similar signals regulate the transition from inflammation to ectopic or tertiary lymphoid tissues (TLOs).
异位LT Alphaββ指导淋巴器官新生成,并具有外周节点地址和HEV限制的磺胺转移酶的表达。
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