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排序方式: 共有181条查询结果,搜索用时 15 毫秒
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Shyh-Ming Yang Makoto Yoshioka Jeffrey W. Strovel Daniel J. Urban Xin Hu Matthew D. Hall Ajit Jadhav David J. Maloney 《Bioorganic & medicinal chemistry letters》2019,29(10):1220-1226
Extensive optimization of quinazoline-based lead 8 is described. The structure-activity relationship studies indicate the S-configuration is preferred for the phenylmorpholine substitution. Together with incorporation of a (2-hydroxyl-2-methylpropyl)pyrazole moiety at the 2-position leads to analogs with comparable potency and marked improvement in the pharmacokinetic profile over our previously reported lead compounds. Further in vivo efficacy studies in Kasumi-1 xenograft mouse model demonstrates that the selected inhibitors are well tolerated and highly efficacious in the inhibition of tumor growth. Additionally, the representative analog 19 also demonstrated significant improvement of arthritis severity in a collagen-induced arthritis (CIA) mouse model. These results indicate potential use of these quinazoline-based BET inhibitors for treatment of cancer and inflammatory diseases. A brief discussion of the co-crystallized structure of 19 with BRD4 (BD1) is also highlighted. 相似文献
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Ping Yu Wenjing Liu Jinghui Ren Yingying Wang Yao Ning Mingqi Huang Xinyi Hu Lili Wei Min Ji Jin Cai 《Bioorganic & medicinal chemistry letters》2019,29(16):2168-2172
Bromodomain-containing protein 4 (BRD4) is a new therapeutic target for the treatment of diseases including cardiovascular diseases, cancer, inflammation and central nervous system (CNS) disorders. In this study, we introduced the pharmacophore of fibrates to a BRD4 inhibitor, RVX-208, to design dual-active hypolipidemic compounds, and found that some of new analogues showed favorable hypolipidemic activities. Synthetic accessibility towards this class of compounds optimized RVX-208 as well as would supply more thoughts on hypolipidemic drugs. 相似文献
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《Bioorganic & medicinal chemistry》2019,27(24):115157
N-Methylpyrrolidone is a solvent molecule which has been shown to compete with acetyl-lysine-containing peptides for binding to bromodomains. From crystallographic studies, it has also been shown to closely mimic the acetamide binding motif in several bromodomains, but has not yet been directly pursued as a fragment in bromodomain inhibition. In this paper, we report the elaboration of N-methylpyrrolidone as a potential lead in fragment-based drug design. Firstly, N-methylpyrrolidone was functionalised to provide points for chemical elaboration. Then, the moiety was incorporated into analogues of the reported bromodomain inhibitor, Olinone. X-ray crystallography revealed that the modified analogues showed comparable binding affinity and structural mimicry to Olinone in the bromodomain binding site. 相似文献
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Giovanna Carr Paolo Nicoli Marcello Francesco Lingua Beatrice Maffeo Antonio Cartell Paola Circosta Mara Brancaccio Guido Parvis Valentina Gaidano Angelo Guerrasio Giuseppe Saglio Riccardo Taulli Alessandro Morotti 《Journal of cellular and molecular medicine》2020,24(2):1650-1657
The development of drugs able to target BTK, PI3k‐delta and BCL2 has dramatically improved chronic lymphocytic leukaemia (CLL) therapies. However, drug resistance to these therapies has already been reported due to non‐recurrent changes in oncogenic pathways and genes expression signatures. In this study, we investigated the cooperative role of the BCL2 inhibitor venetoclax and the BRD4 inhibitor JQ1. In particular, we found that JQ1 shows additional activity with venetoclax, in CLL cell lines and in ex vivo isolated primary CD19+ lymphocytes, arguing in favour of combination strategies. Lastly, JQ1 is also effective in venetoclax‐resistant CLL cell lines. Together, our findings indicated that the BET inhibitor JQ1 could be a promising therapy in CLL, both as first‐line therapy in combination with venetoclax and as second‐line therapy, after the emergence of venetoclax‐resistant clones. 相似文献
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过表达E2F6基因抑制BRD7基因启动子活性 总被引:1,自引:0,他引:1
BRD7基因是采用cDNA代表性差异分析法克隆的一个新Bromodomain基因(GenBank 登录号AF152604)。它在鼻咽癌细胞和组织中表达明显下调,过表达BRD7基因可抑制鼻咽癌细胞的生长和细胞周期的进程。前期工作已克隆了BRD7基因启动子区,并将其启动子定位于450bp(-404→+46bp)的区域。为了进一步揭示BRD7基因在鼻咽癌细胞和组织中表达下调的分子机制,生物信息学分析表明BRD7启动子区有E2F6转录因子结合位点,电泳迁移率实验结果表明转录因子E2F6特异性地结合于BRD7启动子区。荧光素酶检测和绿色荧光蛋白表达检测都证实过表达E2F6基因能抑制BRD7基因启动子活性 相似文献