TRAIL: not just for tumors anymore?

TRAIL: not just for tumors anymore?
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DOI:
10.1084/jem.20122235
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发表时间:
2012-10-22
期刊:
The Journal of experimental medicine
影响因子:
--
通讯作者:
Ware CF
Ware CF
中科院分区:
其他
文献类型:
--
作者:
Benedict CA;Ware CF

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Ware和Benedict讨论了细菌感染和血管疾病背景下TRAIL信号传导的利弊。自从发现肿瘤坏死因子相关凋亡诱导配体(TRAIL)及其受体网络以来,大多数注意力都集中在操纵该途径在癌症治疗中的临床潜力上。然而,TRAIL在炎症条件下的广泛表达以及诱导凋亡和促存活信号通路的能力表明,TRAIL在调节免疫过程中发挥更广泛的作用。两项新的研究表明,肺中中性粒细胞表达TRAIL有助于防御细菌病原体,而小动脉内细胞表达TRAIL则会加剧血管疾病。这些差异化的结果强调了TRAIL信号传导的背景可以决定结果对宿主是有益的还是致病的。
Ware and Benedict discuss the pros and cons of TRAIL signaling in the context of bacterial infection and vascular disease. Since the discovery of TNF-related apoptosis-inducing ligand (TRAIL) and its network of receptors, the majority of attention has focused on the clinical potential of manipulating this pathway in cancer therapy. However, the widespread expression of TRAIL under inflammatory conditions and the ability to induce both apoptotic and prosurvival signaling pathways has suggested that TRAIL plays broader roles in regulating immune processes. Two new studies now show that expression of TRAIL by neutrophils in the lung facilitates defenses against bacterial pathogens, whereas expression of TRAIL by cells within arterioles exacerbates vascular disease. These differentiating results highlight that the context of TRAIL signaling can determine whether the outcome is beneficial or pathogenic for the host.
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