合成了新型的咪唑并[2,1– b ]噻唑查尔酮衍生物,并对其抗癌活性进行了评估。这些查耳酮衍生物显示出令人鼓舞的活性,log GI 50值为-7.51至-4.00。研究了这些衍生物对MCF-7细胞系的详细生物学特性。有趣的是,这些查耳酮衍生物诱导了G 0 / G 1期细胞周期停滞,下调了G 1。细胞周期调节蛋白,如细胞周期蛋白D1和细胞周期蛋白E1,以及CDK4的上调。此外,这些化合物还引发了细胞凋亡的特征性特征,例如p53,p21和p27水平的升高,NF-κB的抑制以及caspase-9的上调。这些查耳酮衍生物之一3 d可能非常适合单独或与现有疗法组合进行详细的生物学研究。
Thienylimidazo[2,1-b]thiazoles as Inhibitors of Mitochondrial NADH Dehydrogenase
作者:Aldo Andreani、Mirella Rambaldi、Alberto Leoni、Alessandra Locatelli、Anna Ghelli、Marina Ratta、Bruna Benelli、Mauro Degli Esposti
DOI:10.1021/jm00007a006
日期:1995.3
synthesis of 6-substituted 5-(thienylvinyl)imidazo[2,1-b]thiazoles and 6-thienylimidazo[2,1-b]thiazoles is reported. These compounds were tested as specific inhibitors of the NADH: ubiquinone (UBQ) reductase activity of NADHdehydrogenase in mitochondrial membranes. The 6-thienylimidazo[2,1-b]thiazoles were more potent in mammalian than in nematode mitochondria and had an average titer of 0.11 mM for 2-
New Antitumor Imidazo[2,1-<i>b</i>]thiazole Guanylhydrazones and Analogues<sup>1</sup>
作者:Aldo Andreani、Silvia Burnelli、Massimiliano Granaiola、Alberto Leoni、Alessandra Locatelli、Rita Morigi、Mirella Rambaldi、Lucilla Varoli、Natalia Calonghi、Concettina Cappadone、Giovanna Farruggia、Maddalena Zini、Claudio Stefanelli、Lanfranco Masotti、Norman S. Radin、Robert H. Shoemaker
DOI:10.1021/jm701246g
日期:2008.2.1
The synthesis of new antitumor 6-substituted imidazothiazole guanylhydrazones is described. Moreover, a series of compounds with a different basic chain at the 5 position were prepared. Finally, the replacement of the thiazole ring in the imidazothiazole system was also considered. All the new compounds prepared were submitted to the NCI cell line screen for evaluation of their antitumor activity. A few selected compounds were submitted to additional biological studies concerning effects on the cell cycle, apoptosis, and mitochondria.
Synthesis of Imidazothiazole-Chalcone Derivatives as Anticancer and Apoptosis Inducing Agents
作者:Ahmed Kamal、D. Dastagiri、M. Janaki Ramaiah、J. Surendranadha Reddy、E. Vijaya Bharathi、Chatla Srinivas、S. N. C. V. L. Pushpavalli、Dhananjaya Pal、Manika Pal-Bhadra
DOI:10.1002/cmdc.201000346
日期:2010.11.8
class of imidazo[2,1‐b]thiazole chalcone derivatives were synthesized and evaluated for their anticanceractivity. These chalcone derivatives show promising activity, with log GI50 values ranging from −7.51 to −4.00. The detailed biological aspects of these derivatives toward the MCF‐7 cell line were studied. Interestingly, these chalcone derivativesinduced G0/G1‐phase cell‐cycle arrest, down‐regulation
合成了新型的咪唑并[2,1– b ]噻唑查尔酮衍生物,并对其抗癌活性进行了评估。这些查耳酮衍生物显示出令人鼓舞的活性,log GI 50值为-7.51至-4.00。研究了这些衍生物对MCF-7细胞系的详细生物学特性。有趣的是,这些查耳酮衍生物诱导了G 0 / G 1期细胞周期停滞,下调了G 1。细胞周期调节蛋白,如细胞周期蛋白D1和细胞周期蛋白E1,以及CDK4的上调。此外,这些化合物还引发了细胞凋亡的特征性特征,例如p53,p21和p27水平的升高,NF-κB的抑制以及caspase-9的上调。这些查耳酮衍生物之一3 d可能非常适合单独或与现有疗法组合进行详细的生物学研究。