分解牛磺酸

IF 12.9 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY
Grant Miura
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引用次数: 0

摘要

N-acetyltaurine 是一种代谢物,其含量随饮食和运动而波动,水解后形成牛磺酸和醋酸。然而,促进这一反应的酶尚不清楚。为了解决这个问题,Wei 等人利用液相色谱-质谱法对小鼠组织进行了活性引导分析,在肾脏和肝脏组织中检测到了较高的 N-乙酰牛磺酸水解活性,N-乙酰牛磺酸水平降低,牛磺酸相应增加。肾脏细胞溶液分馏结合尺寸排阻色谱法确定了一个活性峰。蛋白质组分析发现了一系列候选物质,这些候选物质外源表达了一种孤金属依赖性水解酶--磷脂酰三酯酶相关(PTER),足以增加细胞中的 N-乙酰牛磺酸水解活性。Pter 缺陷小鼠通过对 N-乙酰化氨基酸进行靶向代谢组学分析,证实了水解活性的丧失,结果显示只有 N-乙酰嘌呤水平发生了变化,而其他 N-乙酰氨基酸的变化极小。以前的研究表明,PTER 多态性与早发性肥胖之间存在联系,因此研究小组对 Pter 缺陷小鼠进行了研究,让它们以高脂肪饮食为主,同时补充牛磺酸或在跑步机上跑步。在这两种情况下,小鼠的体重和食物摄入量都降低了,葡萄糖稳态得到改善,这表明增加的N-乙酰牛磺酸、饮食和运动之间存在复杂的相互作用。有益的新陈代谢效应归因于脑干,PTER 在脑干中表达,已知它能调节食物摄入量。加入一种针对候选脑干调节因子--胶质细胞源性神经营养因子α样受体(GFRAL)的抗体,可阻断外源性N-乙酰牛磺酸的作用。尽管关于脑干和外周组织之间的代谢调节以及 N-乙酰牛磺酸所需酶的身份仍有疑问,但 Wei 等人的研究结果为了解 N-乙酰牛磺酸的代谢和功能作用迈出了第一步:自然》633 卷 182-188 页(2024 年)
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Breaking down taurine
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来源期刊
Nature chemical biology
Nature chemical biology 生物-生化与分子生物学
CiteScore
23.90
自引率
1.40%
发文量
238
审稿时长
12 months
期刊介绍: Nature Chemical Biology stands as an esteemed international monthly journal, offering a prominent platform for the chemical biology community to showcase top-tier original research and commentary. Operating at the crossroads of chemistry, biology, and related disciplines, chemical biology utilizes scientific ideas and approaches to comprehend and manipulate biological systems with molecular precision. The journal embraces contributions from the growing community of chemical biologists, encompassing insights from chemists applying principles and tools to biological inquiries and biologists striving to comprehend and control molecular-level biological processes. We prioritize studies unveiling significant conceptual or practical advancements in areas where chemistry and biology intersect, emphasizing basic research, especially those reporting novel chemical or biological tools and offering profound molecular-level insights into underlying biological mechanisms. Nature Chemical Biology also welcomes manuscripts describing applied molecular studies at the chemistry-biology interface due to the broad utility of chemical biology approaches in manipulating or engineering biological systems. Irrespective of scientific focus, we actively seek submissions that creatively blend chemistry and biology, particularly those providing substantial conceptual or methodological breakthroughs with the potential to open innovative research avenues. The journal maintains a robust and impartial review process, emphasizing thorough chemical and biological characterization.
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