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Oxysterols formation as a reflection of biochemical pathways: Summary of in vitro and in vivo studies

机译:氧固醇形成反映生化途径:体内和体外研究总结

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摘要

Oxysterols are cholesterol (CH)-oxidized products generated in organs via either enzymatic or non-enzymatic pathways. Their presence or absence in cells, tissues and organs may provide information related to, for example, CH level and environmental status, inflammatory conditions near the CH molecules, activity of specific enzymes at and around the CH site, types and concentrations of biochemicals interacting with the CH, and the existence of specific signals. Here we present a mini-review of our lab findings on oxysterols formation in vitro and in vivo, including: the effects of different reactive species and availability of endogenous compounds on the type of oxysterol generated, the effects of enhanced activity of paraoxonase 1 or hemeoxygenase on oxysterol level, the correlation between human diseases such as diabetes and oxysterol accumulation, and the correlation between oxidative stress in neurons pre-Parkinsonian conditions in an animal model and intracellular oxidative stress.
机译:氧固醇是通过酶促途径或非酶促途径在器官中产生的胆固醇(CH)氧化产物。它们在细胞,组织和器官中的存在与否可能提供有关以下信息:例如,CH水平和环境状况,CH分子附近的炎症状况,CH部位及其周围特定酶的活性,与之相互作用的生化物质的类型和浓度CH,以及特定信号的存在。在这里,我们对体内和体外氧固醇形成的实验室研究结果进行了简要回顾,包括:不同反应物种和内源性化合物的可用性对产生的氧固醇类型的影响,对氧合酶1或血氧合酶活性增强的影响氧固醇水平,糖尿病等人类疾病与氧固醇蓄积之间的相关性,以及帕金森氏病动物模型中神经元的氧化应激与细胞内氧化应激之间的相关性。

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