Liu Xuebo, Yamada Naruomi, Osawa Toshihiko
Laboratory of Food and Biodynamics, Nagoya University Graduate School of Bioagricultural Sciences, Chikusa, Japan.
Methods Mol Biol. 2009;580:143-52. doi: 10.1007/978-1-60761-325-1_8.
Advances in understanding the neurodegenerative pathologies are creating new opportunities for the development of neuroprotective therapies, such as antioxidant food factors, lifestyle modification, and drugs. However, the biomarker by which to determine the effect of the agent on neurodegeneration is limited. We here address hexanoyl dopamine (HED), one of novel dopamine adducts derived from brain polyunsaturated acid, referring to its in vitro formation, potent toxicity to SH-SY5Y cells, and application to assess the neuroprotective effect of antioxidative food factors. Dopamine is a neurotransmitter and its deficiency is a characterized feature in Parkinson's disease (PD), thereby HED represents a new addition to understanding of dopamine biology and pathophysiology of PD and a novel biomarker for the assessment of neuroprotective therapies. We have established an analytical system using for the detection of HED and its toxicity to the neuroblstoma cell line, SH-SY5Y cells. Here, we discuss the characteristics of the system and its applications to investigate the neuroprotective effect of several antioxidants that originate from food.
在理解神经退行性病变方面取得的进展为神经保护疗法的开发创造了新机会，例如抗氧化食物因子、生活方式改变和药物。然而，用于确定该药物对神经退行性变影响的生物标志物有限。我们在此探讨己酰多巴胺（HED），它是一种源自脑多不饱和酸的新型多巴胺加合物，涉及其体外形成、对SH-SY5Y细胞的强毒性以及用于评估抗氧化食物因子神经保护作用的应用。多巴胺是一种神经递质，其缺乏是帕金森病（PD）的一个特征性表现，因此HED代表了对多巴胺生物学和PD病理生理学理解的新补充，以及用于评估神经保护疗法的新型生物标志物。我们建立了一个用于检测HED及其对神经母细胞瘤细胞系SH-SY5Y细胞毒性的分析系统。在此，我们讨论该系统的特点及其在研究几种源自食物的抗氧化剂神经保护作用方面的应用。
