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缺氧诱导因子与糖皮质激素信号在健康与疾病中的双向交流。

Bidirectional Crosstalk Between Hypoxia Inducible Factors and Glucocorticoid Signalling in Health and Disease.

机构信息

Centre for Inflammation Research, Flanders Institute for Biotechnology (VIB), Ghent, Belgium.

Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.

出版信息

Front Immunol. 2021 Jun 4;12:684085. doi: 10.3389/fimmu.2021.684085. eCollection 2021.

Abstract

Glucocorticoid-induced (GC) and hypoxia-induced transcriptional responses play an important role in tissue homeostasis and in the regulation of cellular responses to stress and inflammation. Evidence exists that there is an important crosstalk between both GC and hypoxia effects. Hypoxia is a pathophysiological condition to which cells respond quickly in order to prevent metabolic shutdown and death. The hypoxia inducible factors (HIFs) are the master regulators of oxygen homeostasis and are responsible for the ability of cells to cope with low oxygen levels. Maladaptive responses of HIFs contribute to a variety of pathological conditions including acute mountain sickness (AMS), inflammation and neonatal hypoxia-induced brain injury. Synthetic GCs which are analogous to the naturally occurring steroid hormones (cortisol in humans, corticosterone in rodents), have been used for decades as anti-inflammatory drugs for treating pathological conditions which are linked to hypoxia (i.e. asthma, ischemic injury). In this review, we investigate the crosstalk between the glucocorticoid receptor (GR), and HIFs. We discuss possible mechanisms by which GR and HIF influence one another, and , and the therapeutic effects of GCs on HIF-mediated diseases.

摘要

糖皮质激素诱导(GC)和低氧诱导的转录反应在组织稳态和调节细胞对压力和炎症的反应中起着重要作用。有证据表明,GC 和低氧效应之间存在着重要的串扰。低氧是一种病理生理状态,细胞会迅速做出反应,以防止代谢停滞和死亡。缺氧诱导因子(HIFs)是氧稳态的主要调节剂,负责细胞应对低氧水平的能力。HIF 的适应性反应导致了多种病理状况,包括急性高山病(AMS)、炎症和新生儿低氧诱导的脑损伤。合成的 GC 类似于天然存在的类固醇激素(人类的皮质醇,啮齿动物的皮质酮),几十年来一直被用作治疗与低氧相关的病理状况(如哮喘、缺血性损伤)的抗炎药物。在这篇综述中,我们研究了糖皮质激素受体(GR)和 HIFs 之间的串扰。我们讨论了 GR 和 HIF 相互影响的可能机制,以及 GC 对 HIF 介导的疾病的治疗效果。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/baa1/8211996/ea69c1e3146d/fimmu-12-684085-g001.jpg

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