Aging is a major risk factor for many prevalent diseases. Pharmacological intervention to improve the health span and extend the lifespan could be a preventive elixir for aging and age-related diseases. The non-steroid anti-inflammation medicine aspirin was reported to delay aging in Caenorhabditis elegans (C. elegans) and mice. We are wondering if the analogues of aspirin could also present antiaging activity. Here, we synthesized several aspirin derivatives and investigated their thermotolerance and antiaging effect in C. elegans. One of the compounds, 5-(bis(3-methylbut-2-en-1-yl)amino)-2-hydroxybenzoic acid, moderately increased the survival of C. elegans under heat stress, but could not extend the lifespan under optimum conditions. This compound could increase the mRNA level of stress response gene gst-4, and the mRNA and protein expression level of heat shock protein hsp-16.2 under heat stress. The failure of activating the transcription factor DAF-16 might explain why this compound could not act as aspirin to extend the lifespan of C. elegans. Our results would help further the investigation of the pharmacological activity of aspirin analogues and the relationship between structures and activity.
衰老是许多常见疾病的主要危险因素。通过药物干预提高健康寿命和延长生命可能是延缓衰老和对抗年龄相关疾病的预防良药。非甾体抗炎药
阿司匹林已被报道能延缓秀丽隐杆线虫(Caenorhabditis elegans, C. elegans)和小鼠的衰老。我们想知道
阿司匹林的类似物是否也能表现出抗衰老活性。本研究中,我们合成了几种
阿司匹林衍
生物,并检测了它们在C. elegans中的耐热性和抗衰老作用。其中一种化合物,5-(双(3-甲基丁-2-烯-1-基)
氨基)-
2-羟基苯甲酸,在热胁迫下适度提高C. elegans的存活率,但不能在最佳条件下延长其寿命。该化合物能在热胁迫下增加应激反应
基因gst-4的mRNA
水平,以及热休克蛋白hsp-16.2的mRNA和蛋白表达
水平。未能激活转录因子
DAF-16可能是该化合物不能像
阿司匹林那样延长C. elegans寿命的原因。我们的结果将进一步推动对
阿司匹林类似物药理活性的研究,以及它们结构与活性之间的关系。