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The role of cellular oxidoreductases in viral entry and virus infection-associated oxidative stress: potential therapeutic applications

机译:细胞氧化还原酶在病毒进入和病毒感染相关的氧化应激中的作用:潜在的治疗应用

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Introduction: Cellular oxidoreductases catalyze thiol/disulfide exchange reactions in susceptible proteins and contribute to the cellular defense against oxidative stress. Oxidoreductases and oxidative stress are also involved in viral infections. In this overview, different aspects of the role of cellular oxidoreductases and oxidative stress during viral infections are discussed from a chemotherapeutic viewpoint.Areas covered: Entry of enveloped viruses into their target cells is triggered by the interaction of viral envelope glycoproteins with cellular (co)receptor(s) and depends on obligatory conformational changes in these viral envelope glycoproteins and/or cellular receptors. For some viruses, these conformational changes are mediated by cell surface-associated cellular oxidoreductases, which mediate disulfide bridge reductions in viral envelope glycoprotein(s). Therefore, targeting these oxidoreductases using oxidoreductase inhibitors might yield an interesting strategy to block viral entry of these viruses. Furthermore, since viral infections are often associated with systemic oxidative stress, contributing to disease progression, the enhancement of the cellular antioxidant defense systems might have potential as an adjuvant antiviral strategy, slowing down disease progression.Expert opinion: Promising antiviral data were obtained for both strategies. However, potential pitfalls have also been identified for these strategies, indicating that it is important to carefully assess the benefits versus risks of these antiviral strategies.
机译:简介:细胞氧化还原酶催化易感蛋白质中的硫醇/二硫键交换反应,并有助于细胞抵御氧化应激。氧化还原酶和氧化应激也参与病毒感染。在本概述中,从化学疗法的角度讨论了细胞氧化还原酶和病毒感染过程中氧化应激的不同方面。涵盖的领域:包膜病毒进入其靶细胞是由病毒包膜糖蛋白与细胞(co)的相互作用触发的并且取决于这些病毒包膜糖蛋白和/或细胞受体的强制性构象变化。对于某些病毒,这些构象变化是由与细胞表面相关的细胞氧化还原酶介导的,它们介导病毒包膜糖蛋白的二硫键还原。因此,使用氧化还原酶抑制剂靶向这些氧化还原酶可能会产生一种有趣的策略来阻止这些病毒的病毒进入。此外,由于病毒感染通常与全身氧化应激有关,从而导致疾病进展,因此细胞抗氧化剂防御系统的增强可能具有作为辅助抗病毒策略,减慢疾病进展的潜力。专家意见:两种方法均获得了有希望的抗病毒数据策略。但是,这些策略也有潜在的陷阱,表明仔细评估这些抗病毒策略的获益与风险很重要。

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