Department of Molecular and Integrative Physiology, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
Department of Molecular and Integrative Physiology, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
Trends Endocrinol Metab. 2021 Oct;32(10):790-802. doi: 10.1016/j.tem.2021.07.009. Epub 2021 Sep 1.
Nuclear receptors (NRs) are ligand-binding transcription factors that regulate gene networks and physiological responses. Often oxidative stress precedes the onset of liver diseases, and Nrf2 is a key regulator of antioxidant pathways. NRs crosstalk with Nrf2, since NR activation can influence the oxidative milieu by modulating reductive cellular processes. Diet and xenobiotics also regulate NR expression and activity, suggesting a feedback loop. Depending on the tissue context and cues, NRs either increase or decrease toxicity and oxidative damage. Many FDA-approved drugs target NRs, and one could potentially repurpose them to ameliorate reactive oxygen species (ROS). Here, we discuss how several NRs modulate oxidative stress subsequent to diet, organic pollutants, and drug-induced injury to the liver.
核受体(NRs)是配体结合的转录因子,可调节基因网络和生理反应。通常,氧化应激先于肝脏疾病的发生,而 Nrf2 是抗氧化途径的关键调节剂。NRs 与 Nrf2 相互作用,因为 NR 的激活可以通过调节还原细胞过程来影响氧化环境。饮食和外源性化学物质也调节 NR 的表达和活性,提示存在反馈回路。根据组织背景和信号,NR 可以增加或减少毒性和氧化损伤。许多获得 FDA 批准的药物都以 NR 为靶点,人们可能会将它们重新用于改善活性氧(ROS)。在这里,我们讨论了几种 NR 如何调节饮食、有机污染物和药物引起的肝损伤后氧化应激。