通过优化其芳香环合成了一系列新型姜黄素类似物。通过MTT测定法筛选了这些类似物对四种人类癌细胞系的抗增殖活性,并且与姜黄素相比,有些具有抗增殖活性。最有效的化合物10对Caco-2,Bel-7402,MDA-MB-231和DU145癌细胞表现出抗增殖活性,IC 50值分别为2.04、1.54、4.99和3.22μM。Annexin V /碘化丙啶双重染色和流式细胞仪细胞周期分析,使用碘化丙啶DNA染色显示化合物10诱导Bel-7402细胞的G1期凋亡和细胞周期停滞,呈剂量依赖性。此外,在肝癌异种移植的体内小鼠模型中,化合物10以20mg / kg /天的剂量基本上抑制肝肿瘤生长,而没有可观察到的毒性作用。
Alzheimer's disease (AD) is the most common form of dementia. In an AD patient's brain, senile plaques and neurofibrillary tangles, the abnormal aggregates of amyloid beta (A beta) peptide and tau protein, are observed as the two major hallmarks of this disease. To develop a new drug for treatment of AD, we have designed and synthesized a series of curcumin derivatives and evaluated their inhibitory activities against both tau and Ab aggregation. In this study, we describe the development of the more potent aggregation inhibitor 3-[(1E)-2-(1H-indol-6-yl) ethenyl]-5-[(1E)-2-[ 2-methoxy-4-(2-pyridylmethoxy) phenyl] ethenyl]-1H-pyrazole (compound 4, PE859). This compound has a better pharmacokinetic profile and pharmacological efficacy in vivo than curcumin, making it suitable as a drug for AD. (C) 2016 Elsevier Ltd. All rights reserved.
Pavolini et al., Annali di Chimica, 1950, vol. 40, p. 280,289