格兰亚醇A通过激活Nrf2/HO-1通路来保护6-OHDA诱导的帕金森病免受铁
Luqi Kong1, Yilan Wang1, Zhou Tong1
1State Key Laboratory of Biocatalysis and Enzyme Engineering, National & Local Joint Engineering Research Centre of High-throughput Drug Screening Technology, School of Life Sciences, Hubei University, Wuhan 430062, China.
Bioorganic chemistry
|April 28, 2024
概括
从微生物共同培养中分离的格兰亚A (GA) 在治疗帕金森病 (PD) 中显示出有前途. 在PD模型中,GA减轻了铁亡,并减少了α-synuclein积累.
科学领域:
- 自然产品化学 自然产品化学
- 神经科学是一个神经科学.
- 微生物学 微生物学
背景情况:
- 帕金森病 (PD) 是一种神经退行性疾病,其特点是运动缺陷和α-synuclein聚合.
- 铁亡,一种受调节的细胞死亡形式,与PD病变发生有关.
- 微生物共同培养为发现新生物活性化合物提供了一个有希望的途径.
研究的目的:
- 为了隔离和描述来自Alternaria brassicicola和Penicillium sp.共同培养的化合物.
- 为了评估分离的化合物的抗帕金森病 (PD) 活性.
- 阐明PD模型中活性化合物的治疗作用背后的分子机制.
主要方法:
- 使用色谱技术的化合物隔离.
- 通过NMR光谱学,单晶X射线衍射和循环二元化进行结构阐明.
- 使用细胞和斑马鱼模型对抗PD活性进行体外和体内评估.
- 涉及基因表达分析和蛋白质水平评估的分子机制研究.
主要成果:
- 他们分离了五种化合物,包括两种新化合物 - - 颗粒酸和颗粒,以及一种罕见的西醇美特类化合物 - - 颗粒醇A (GA).
- 在体外 (6-OHDA诱导的SH-SY5Y细胞) 和体内 (6-OHDA诱导的斑马鱼) 模型中,花氨酸A (GA) 显示出显著的抗PD活性.
- 它减轻了6-OHDA诱导的铁亡,减轻了关键蛋白质 (SLC7A11,GPX4,FSP-1) 的减少和ACSL4的增加,这可能是通过Nrf2/HO-1通路的激活.
- 此外,GA还改善了PD模拟细胞中的α-synuclein积累.
结论:
- 格兰亚A (GA) 是一种强大的抗帕金森病剂,具有潜在的治疗应用.
- GA通过调节铁和Nrf2/HO-1通路,并减少α-synuclein聚合来发挥其神经保护作用.
- 微生物共同培养是发现具有治疗潜力的新型天然产品的有效策略.
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