作者:Flávio da Nóbrega、Ozlem Ozdemir、Sheila Nascimento Sousa、Joice Barboza、Hasan Turkez、Damião de Sousa
DOI:10.3390/molecules23061382
日期:——
Piplartine (1) is an alkamide extracted from plants of the genus Piper which shows several pharmacological properties, including antitumor activity. To improve this activity, a series of analogues based on 1 have been synthesized by esterification and amidation using the 3,4,5-trimethoxycinnamic acid-like starting material. During the study, the moieties 3-(3,4,5-trimethoxyphenyl)acrylate and 3-(3,4,5-trimethoxyphenyl)acrylamide were maintained on esters and amides respectively. Meanwhile, functional changes were exploited, and it was revealed that the presence of two aromatic rings in the side-chain was important to improve the cytotoxic activity against the U87MG cell line, such as the compound (E)-benzhydryl 3-(3,4,5-trimethoxyphenyl)acrylate (10), an ester that exhibited strong cytotoxicity and a similar level of potency to that of paclitaxel, a positive control. Compound 10 had a marked concentration-dependent inhibitory effect on the viability of the U87MG cell line with apoptotic and oxidative processes, showing good potential for altering main molecular pathways to prevent tumor development. Moreover, it has strong bioavailability with non-genotoxic and non-cytotoxic properties on human blood cells. In conclusion, the findings of the present study demonstrated that compound 10 is a promising agent that may find applications combatting diseases associated with oxidative stress and as a prototype for the development of novel drugs used in the treatment of glioblastoma.
Piplartine (1) 是一种从胡椒属植物中提取的醇胺,具有多种药理特性,包括抗肿瘤活性。为了提高其活性,研究人员通过酯化和酰胺化合成了一系列基于1的类似物,这些类似物以3,4,5-三甲氧基肉桂酸为起始材料。在研究过程中,3-(3,4,5-三甲氧基苯基)丙烯酸酯和3-(3,4,5-三甲氧基苯基)丙烯酰胺分别保留在酯和酰胺中。同时,研究了功能性变化,结果显示侧链中两个芳香环的存在对增加对U87MG细胞系的细胞毒性活性至关重要,例如化合物(E)-苯甲基3-(3,4,5-三甲氧基苯基)丙烯酸酯 (10) 是一种表现出强细胞毒性并且活性水平与阳性对照紫杉醇相似的酯。化合物10对U87MG细胞系的存活率具有明显的浓度依赖性抑制作用,并伴随有凋亡和氧化过程,显示出良好的潜力以改变主要分子通路以防止肿瘤发展。此外,该化合物具有良好的生物利用度,并且对人类血细胞表现出非基因毒性和非细胞毒性。总之,本研究的结果表明,化合物10是一个有前景的药物,有可能应用于抗击与氧化应激相关的疾病,并作为开发用于治疗胶质母细胞瘤的新药的原型。