Aryl hydrocarbon receptor ligands in cancer: friend and foe.

Aryl hydrocarbon receptor ligands in cancer: friend and foe.
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DOI:
10.1038/nrc3846
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发表时间:
2014-12
影响因子:
78.5
通讯作者:
Perdew, Gary H.
Perdew, Gary H.
中科院分区:
医学1区
文献类型:
--
作者:
Murray, Iain A.;Patterson, Andrew D.;Perdew, Gary H.

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芳烃受体(AHR)是一种配体激活的转录因子,最为人所知的是介导致癌物2,3,7,8-四氯二苯并-对二恶英的毒性和促肿瘤特性,通常被称为“二恶英”。AHR影响肿瘤发生的主要阶段--启动、促进、进展和转移--生理上相关的AHR配体通常在疾病状态或增强的先天性和获得性免疫反应期间形成。有趣的是,在啮齿动物和人类之间,配基的特异性和亲和力不同。对侵袭性肿瘤和肿瘤细胞系的研究表明,AHR水平增加,这种受体在细胞核中的成分定位。这表明AHR在肿瘤中被长期激活,从而促进了肿瘤的进展。这篇综述讨论了AHR在肿瘤发生中的作用以及在肿瘤中对其活性进行治疗调节的可能性。
The aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor that is best known for mediating the toxicity and tumour-promoting properties of the carcinogen 2,3,7,8-tetrachlorodibenzo-p-dioxin, commonly referred to as 'dioxin'. AHR influences the major stages of tumorigenesis — initiation, promotion, progression and metastasis — and physiologically relevant AHR ligands are often formed during disease states or during heightened innate and adaptive immune responses. Interestingly, ligand specificity and affinity vary between rodents and humans. Studies of aggressive tumours and tumour cell lines show increased levels of AHR and constitutive localization of this receptor in the nucleus. This suggests that the AHR is chronically activated in tumours, thus facilitating tumour progression. This Review discusses the role of AHR in tumorigenesis and the potential for therapeutic modulation of its activity in tumours.
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