Phenolic Compounds as Selective Antineoplasic Agents against Multidrug-resistant Human Cancer Cells
作者:Noélia Duarte、Hermann Lage、Marta Abrantes、Maria-José Ferreira
DOI:10.1055/s-0029-1240892
日期:2010.7
Twelve phenolic compounds, including three stilbenes, two flavonoids, two coumarins, one neolignan, and four lignans, isolated from Euphorbia and Pycnanthus species or obtained by derivatization, were assayed for their potential antineoplastic efficacy in three human cancer cell lines: gastric (EPG85-257), pancreatic (EPP85-181), and colon (HT-29) carcinomas as well as derived multidrug-resistant sublines. In each case, two different multidrug-resistant variants, i.e., cell lines with classical and atypical MDR phenotype, were used. The majority of the MDR cancer sublines showed increased sensitivities to the studied compounds when compared to the parental sublines. The most active compound was the flavonoid naringenin, found to be 15-fold more effective against the atypical MDR subline of gastric carcinoma than in parental drug-sensitive cells. Furthermore, the stilbene trans-3,5,3′,4′-tetramethoxypiceatannol and the lignans 4′-hydroxy-3,3′,4-trimethoxylignan and heliobuphthalmin also exhibited high antineoplasic activities against the classical MDR subline derived from gastric carcinoma. The results of this study suggest that some phenolic compounds might be valuable for the treatment of multidrug-resistant cancer cells.
研究人员从大戟科植物和白千层属植物中分离或通过衍生化方法获得了 12 种酚类化合物,包括 3 种二苯乙烯类化合物、2 种黄酮类化合物、2 种香豆素类化合物、1 种新木质素类化合物和 4 种木质素类化合物,并对这 12 种化合物在胃癌(EPG85-257)、胰腺癌(EPP85-181)和结肠癌(HT-29)这三种人类癌症细胞系以及衍生的耐多药亚系中的潜在抗肿瘤功效进行了检测。每种情况都使用了两种不同的多重耐药变体,即具有典型和非典型多重耐药表型的细胞系。与亲本亚系相比,大多数 MDR 癌症亚系对所研究化合物的敏感性都有所提高。最有活性的化合物是类黄酮柚皮苷,它对非典型 MDR 胃癌亚系的疗效是对亲代药物敏感细胞的 15 倍。此外,二苯乙烯-反式-3,5,3′,4′-四甲氧基水飞蓟醇、木犀草素-4′-羟基-3,3′,4-三甲氧基木犀草素和七叶芹素也对源自胃癌的经典 MDR 亚系表现出很高的抗肿瘤活性。研究结果表明,一些酚类化合物可能对治疗耐多药癌细胞有价值。