39635-24-0Relevant academic research and scientific papers
Discovery of highly potent tubulin polymerization inhibitors: Design, synthesis, and structure-activity relationships of novel 2,7-diaryl-[1,2,4]triazolo[1,5-a]pyrimidines
Huo, Xian-Sen,Jian, Xie-Er,Ou-Yang, Jie,Chen, Lin,Yang, Fang,Lv, Dong-Xin,You, Wen-Wei,Rao, Jin-Jun,Zhao, Pei-Liang
, (2021/05/10)
By removing 5-methyl and 6-acetyl groups in our previously reported compound 3, we designed a series of novel 2,7-diaryl-[1,2,4]triazolo[1,5-a]pyrimidine derivatives as potential tubulin polymerization inhibitors. Among them, compound 5e displayed low nanomolar antiproliferative efficacy on HeLa cells which was 166-fold higher than the lead analogue 3. Interestingly, 5e displayed significant selectivity in inhibiting cancer cells over HEK-293 (normal human embryonic kidney cells). In addition, 5e dose-dependently arrested HeLa in G2/M phase through the alterations of the expression levels of p-cdc2 and cyclin B1, and caused HeLa cells apoptosis by regulation of expressions of cleaved PARP. Further evidence demonstrated that 5e effectively inhibited tubulin polymerization and was 3-fold more powerful than positive control CA-4. Moreover, molecular docking analysis indicated that 5e overlapped well with CA-4 in the colchicine-binding site. These studies demonstrated that 2,7-diaryl-[1,2,4]triazolo[1,5-a]pyrimidine skeleton might be used as the leading unit to develop novel tubulin polymerization inhibitors as potential anticancer agents.
Development of triazolothiadiazine derivatives as highly potent tubulin polymerization inhibitors: Structure-activity relationship, in vitro and in vivo study
Ma, Weifeng,Chen, Peng,Huo, Xiansen,Ma, Yufeng,Li, Yanhong,Diao, Pengcheng,Yang, Fang,Zheng, Shengquan,Hu, Mengjin,You, Wenwei,Zhao, Peiliang
, (2020/10/08)
Based on our prior work, we reported the design, synthesis, and biological evaluation of fifty-two new triazolothiadiazine-based analogues of CA-4 and their preliminary structure-activity relationship. Among synthesized compounds, Iab was found to be the most potent derivative possessing IC50 values ranging from single-to double-digit nanomolar in vitro, and also exhibited excellent selectivity over the normal human embryonic kidney HEK-293 cells (IC50 > 100 μM). Further mechanistic studies revealed that Iab significantly blocked tubulin polymerization and disrupted the intracellular microtubule network of A549 cells. Moreover, Iab induced G2/M cell cycle arrest by regulation of p-cdc2 and cyclin B1 expressions, and caused cell apoptosis through up-regulating cleaved PARP and cleaved caspase-3 expressions, and down-regulating of Bcl-2. Importantly, in vivo, Iab effectively suppressed tumor growth of A549 lung cancers in a xenograft mouse model without obvious signs of toxicity, confirming its potential as a promising candidate for cancer treatment.
Identification of novel urease inhibitors by high-throughput virtual and in vitro screening
Abid, Obaid-Ur-Rahman,Babar, Tariq Mahmood,Ali, Farukh Iftakhar,Ahmed, Shahzad,Wadood, Abdul,Rama, Nasim Hasan,Uddin, Reaz,Zaheer-Ul-Haq,Khan, Ajmal,Choudhary, M. Iqbal
scheme or table, p. 145 - 149 (2010/10/19)
Ureases are important in both agriculture and human health. Bacterial ureases are directly involved in many farm-field problems and pathological conditions. Here, we report a structure-based virtual screening of an in-house compound bank of about 6000 molecular entities by computational docking and binding free energy calculations followed by in vitro screening. Applied protocol leads to the identification of novel urease inhibitors, which can serve as starting points for structural optimization.
