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氨基酸以一种依赖于sirtuin 1的方式对Cry1和Bmal1时钟基因进行上调. 在体外试验研究研究

Maria Romerowicz-Misielak¹, Katarzyna Kozioł¹, Sławomir Nowak¹

¹Collegium Medicum, Faculty of Biotechnology, University of Rzeszow, 35-310 Rzeszow, Poland.

Toxicology and applied pharmacology

|April 10, 2025

概括

氨基酸抑制SIRT1的表达,并对细胞中的Cry1和Bmal1基因表达进行上调,影响昼夜动态. 这项研究探讨了AOAA对分子昼夜钟和SIRT1调节的影响.

科学领域:

分子生物学分子生物学
时间生物学时间生物学
生物化学生物化学

背景情况:

循环时钟调节涉及复杂的振荡和相互作用.
抗衰老蛋白SIRT1越来越多地与分子昼夜钟联系在一起.
已知氨基酸 (AOAA) 抑制了氨酸-β合成酶和氨酸-γ-酶.

研究的目的:

研究AOAA对SIRT1表达的体外影响.
检查AOAA,SIRT1和Cry1和Bmal1.1的昼夜动态之间的关系.
了解AOAA对分子昼夜时钟的影响.

主要方法:

使用血清冲击NIH-3T3和HaCaT细胞.
评估了SIRT1,Cry1和Bmal1的表达水平.
研究了AOAA对特定酶的抑制活性.

主要成果:

AOAA有效地抑制SIRT1的转录和合成.
AOAA对Cry1和Bmal1基因的表达进行上调.
观察到的对昼夜基因的影响似乎与AOAA的酶抑制没有直接联系.

结论:

AOAA对SIRT1的抑制可能具有更广泛的代谢影响.
AOAA影响昼夜基因表达,独立于其对cystathionine-β-synthase和cystathionine-γ-lyase的影响.
硫化在生理时钟调节中的作用需要进一步研究.

关键词:

氨基酸 (AOAA) 是一种氨基酸.时钟基因是指时间基因.赛斯塔提昂 γ-酶 (CSE) 的使用囊氨酸β合成酶 (CBS) 是一种硫化是一种硫化.静音信息调节器两个家庭成员 (SIRT1)

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