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尼古丁胺N-甲基转移酶在心血管疾病中的作用:代谢调节剂和新兴治疗点

Jawaria^1,2, Yusra Zarlashat³, Márton Philippovich⁴

¹Health Biotechnology Division, National Institute for Biotechnology and Genetic Engineering-C (NIBGE), Faisalabad 38000, Pakistan.

|September 27, 2025

概括

尼古丁胺N-甲基转移酶 (NNMT) 在心血管疾病 (CVD) 中起着双重作用. 虽然它的活性可能是有害的,但它的代谢产物显示出保护作用,表明潜在的治疗目标对心脏健康.

科学领域:

生物化学生物化学
分子生物学分子生物学
心血管研究研究心血管研究

背景情况:

心血管疾病 (CVD) 是全球主要的健康负担,由代谢,遗传和环境因素驱动.
尼古丁胺N-甲基转移酶 (NNMT) 被确定为心血管疾病发展中的关键代谢调节剂.
NNMT影响表观遗传,代谢和氧化还原通路,这些通路对于心血管功能至关重要.

研究的目的:

研究NNMT及其代谢物1-甲基尼古丁胺胺 (1-MNA) 在心血管健康和疾病中的多方面的作用.
探索NNMT行动的复杂二元性,平衡病原和潜在的保护机制.
评估针对NNMT治疗心脏病的治疗潜力.

主要方法:

分析NNMT的酶活性及其对NAD+水平,素 (SIRT) 活性和细胞代谢的影响.
调查NNMT介导的homocysteine生产及其促炎信号通路 (例如TLR4-NF-κB).
对使用NNMT抑制剂和RNA干扰进行心脏代谢益处的临床前研究的审查.

主要成果:

由NNMT诱导的NAD+枯竭会损害线粒体功能和能量代谢,促进动脉样硬化.
NNMT和1-MNA调节SIRT1和SIRT3的活动,影响脂质和葡萄糖代谢.
来自NNMT的高水平homocysteine激活炎症通路;1-MNA可能通过NRF2激活提供保护作用.

结论:

在心血管疾病中,NNMT表现出复杂的双重作用,其酶活性往往具有致病性,其代谢物1-MNA具有潜在的保护性.
用抑制剂向NNMT在临床前模型中显示出改善胰岛素敏感性和减少动脉样硬化的前景.
需要进一步的研究来澄清NNMT的组织特异性作用,并将研究结果转化为临床心血管疾病疗法.

关键词:

NAD+代谢 NAD+的代谢没有NNMT的抑制剂.动脉样硬化动脉样硬化心血管疾病心血管疾病尼古丁胺胺 N-甲基转移酶氧化应激是一种氧化应激.这里是Sirtuinsins的所在地.

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