Novel Polyphenols That Inhibit Colon Cancer Cell Growth Affecting Cancer Cell Metabolism
作者:Marta Gómez de Cedrón、Teodoro Vargas、Andrés Madrona、Aranza Jiménez、María-Jesús Pérez-Pérez、José-Carlos Quintela、Guillermo Reglero、Ana San-Félix、Ana Ramírez de Molina
DOI:10.1124/jpet.118.248278
日期:2018.8
New series of polyphenols with a hydrophilic galloyl-based head and a hydrophobic N -acyl tail, linked through a serinol moiety, have been synthesized and tested against colon cancer cell growth. Our structure activity relationship studies revealed that galloyl moieties are essential for growth inhibition. Moreover, the length of the N -acyl chain is crucial for the activity. Introduction of a ( Z ) double bond in the acyl chain increased the anticancer properties. Our findings demonstrate that 16 , the most potent compound within this series, has inhibitory effects on colon cancer cell growth and metabolism (glycolysis and mitochondrial respiration) at the same time that it activates 5′AMP-activated kinase (AMPK) and induces apoptotic cell death. Based on these results, we propose that 16 might reprogram colon cancer cell metabolism through AMPK activation. This might lead to alterations on cancer cell bioenergy compromising cancer cell viability. Importantly, these antiproliferative and proapoptotic effects are selective for cancer cells. Accordingly, these results indicate that 16 , with an unsaturated C18 chain, might be a useful prototype for the development of novel colon cancer cell growth inhibitors affecting cell metabolism.
一系列具有亲水性鞣酸基头和疏水性N-酰基尾的多酚类化合物,通过酪氨酸基团连接,已被合成并测试其对结肠癌细胞生长的抑制作用。我们的结构活性关系研究表明,鞣酸基团对于生长抑制至关重要。此外,N-酰基链的长度对活性也十分关键。在酰基链中引入(Z)双键增强了抗癌特性。我们的研究发现,化合物16是该系列中最有效的化合物,能够同时抑制结肠癌细胞的生长和代谢(糖酵解和线粒体呼吸),并激活5′AMP激酶(AMPK),诱导细胞凋亡。基于这些结果,我们提出16可能通过AMPK激活重编程结肠癌细胞代谢,这可能导致癌细胞生物能量的变化,从而影响癌细胞的生存能力。重要的是,这些抗增殖和促凋亡的作用对癌细胞具有选择性。因此,这些结果表明,具有不饱和C18链的化合物16可能是开发新型结肠癌细胞生长抑制剂的有用原型,能够影响细胞代谢。