当前位置: X-MOL 学术bioRxiv. Mol. Biol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Phenformin's impact on lifespan in C. elegans is resilient to environmental factors that inhibit metformin-induced longevity downstream of skn-1/Nrf and AMP-activated protein kinase
bioRxiv - Molecular Biology Pub Date : 2023-09-21 , DOI: 10.1101/2023.09.21.558710
Sainan Li , Fasih Ahsan , Yifei Zhou , Armen Yerevanian , Alexander A. Soukas

Despite being principally prescribed to treat type 2 diabetes, biguanides, especially metformin and phenformin, have been shown to extend lifespan and healthspan in preclinical models, and to reduce the impact of aging-associated diseases such as cancer. While there have been conflicting results in studies involving rodents and humans, consistent evidence from laboratories worldwide, including our own, indicates metformin and phenformin's ability to significantly extend lifespan in C. elegans. However, the pro-longevity effect of metformin can vary depending on environmental conditions. Specifically, the choice of agar from different manufacturers or batches influences metformin's ability to extend lifespan in C. elegans. We traced ability of certain agar batches to interfere with metformin-prompted lifespan extension to the presence of a factor that acts directly in the worm, independently of the bacterial food source, that prevents longevity promoting effects downstream of longevity effectors skn-1 and AMPK. In contrast, phenformin prompts robust lifespan extension in the face of environmental changes and exhibits broad positive effects in aging across genetically diverse Caenorhabditis species where the impact of metformin is highly variable. Thus metformin effects in aging are impacted by heretofore unappreciated environmental factors. Phenformin may represent a more robust agent with which to understand the longevity promoting mechanisms downstream of biguanides.

中文翻译:

苯乙双胍对线虫寿命的影响对抑制二甲双胍诱导的 skn-1/Nrf 和 A​​MP 激活蛋白激酶下游寿命的环境因素有弹性

尽管双胍类药物主要用于治疗 2 型糖尿病,但双胍类药物,尤其是二甲双胍和苯乙双胍,已被证明可以在临床前模型中延长寿命和健康寿命,并减少癌症等与衰老相关的疾病的影响。虽然涉及啮齿类动物和人类的研究结果相互矛盾,但来自世界各地实验室(包括我们自己的实验室)的一致证据表明,二甲双胍和苯乙双胍能够显着延长线虫的寿命。然而,二甲双胍的延长寿命作用可能会因环境条件而异。具体来说,来自不同制造商或批次的琼脂的选择会影响二甲双胍延长线虫寿命的能力。我们追踪了某些琼脂批次干扰二甲双胍促进寿命延长的能力,因为存在一种直接作用于蠕虫的因子,与细菌食物来源无关,该因子阻止了长寿效应子 skn-1 和 AMPK 下游的长寿促进作用。相比之下,苯乙双胍在面对环境变化时可显着延长寿命,并在遗传多样性的秀丽隐杆线虫物种中表现出广泛的积极影响,其中二甲双胍的影响变化很大。因此,二甲双胍在衰老中的作用受到迄今为止未被认识到的环境因素的影响。苯乙双胍可能代表一种更强大的药物,可以用来了解双胍下游的长寿促进机制。阻止长寿效应子 skn-1 和 AMPK 下游的长寿促进作用。相比之下,苯乙双胍在面对环境变化时可显着延长寿命,并在遗传多样性的秀丽隐杆线虫物种中表现出广泛的积极影响,其中二甲双胍的影响变化很大。因此,二甲双胍在衰老中的作用受到迄今为止未被认识到的环境因素的影响。苯乙双胍可能代表一种更强大的药物,可以用来了解双胍下游的长寿促进机制。阻止长寿效应子 skn-1 和 AMPK 下游的长寿促进作用。相比之下,苯乙双胍在面对环境变化时可显着延长寿命,并在遗传多样性的秀丽隐杆线虫物种中表现出广泛的积极影响,其中二甲双胍的影响变化很大。因此,二甲双胍在衰老中的作用受到迄今为止未被认识到的环境因素的影响。苯乙双胍可能代表一种更强大的药物,可以用来了解双胍下游的长寿促进机制。面对环境变化,苯乙双胍可以显着延长寿命,并且对遗传多样性的线虫物种的衰老表现出广泛的积极影响,而二甲双胍的影响变化很大。因此,二甲双胍在衰老中的作用受到迄今为止未被认识到的环境因素的影响。苯乙双胍可能代表一种更强大的药物,可以用来了解双胍下游的长寿促进机制。面对环境变化,苯乙双胍可以显着延长寿命,并且对遗传多样性的线虫物种的衰老表现出广泛的积极影响,而二甲双胍的影响变化很大。因此,二甲双胍在衰老中的作用受到迄今为止未被认识到的环境因素的影响。苯乙双胍可能代表一种更强大的药物,可以用来了解双胍下游的长寿促进机制。
更新日期:2023-09-22
down
wechat
bug