硫化/多硫化信号和神经元疾病
1Department of Pharmaceutical Engineering, Faculty of Engineering, Sanyo-Onoda City University, Yamaguchi, Japan.
概括
硫化 (H2S) 和多硫化是调节神经元活动和保护细胞免受氧化应激的重要信号分子. 这些硫化合物的失调与神经和精神疾病有关.
科学领域:
- 生物化学 生物化学
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
背景情况:
- 硫化 (H2S) 和多硫化 (H2Sn) 是关键的内源分子.
- 它们调节关键的生理过程,包括神经元活动,血管度和细胞死亡途径,如氧化和铁化.
- 诸如氨酸β-合成酶 (CBS),氨酸γ-酶 (CSE) 和3-甲酸硫转移酶 (3MST) 等酶参与它们的产生.
研究的目的:
- 阐明H2S和多硫化物在细胞调节中的多方面的作用.
- 了解H2S和多硫化物与蛋白质标相互作用的机制.
- 探索硫代谢与神经/精神疾病之间的联系.
主要方法:
- 对H2S和聚硫化物合成的酶途径的分析.
- 通过H2S和多硫化物对蛋白质过硫化物的研究.
- 检查TRPA1通道在硫代谢中的作用.
- 评估细胞对氧化应激和细胞死亡的保护.
主要成果:
- H2S和多硫化物调节神经元活动,血管度,氧气感应和癌症进展.
- 酶CBS,CSE和3MST是H2S的关键生产者,3MST也产生多硫化物.
- TRPA1通道影响硫的新陈代谢和GABA活性神经传递.
- 聚硫化物固硫化氨酸残留物,改变蛋白质功能,而H2S针对氧化氨酸残留物.
- H2S/多硫化物提供了对氧化应激,氧化和铁的保护.
结论:
- H2S和多硫化物是细胞功能和生存的重要调节剂.
- 这些硫种的异常水平与神经元和精神疾病的病理生理学有关.
- 准硫代谢途径可能为相关疾病提供治疗策略.
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