Abstract:
:A series of novel quinazolines as tubulin inhibitors occupying three zones of colchicine domain have been designed and synthesized inspired by the recently disclosed crystal structure of verubulin analogue 6 with tubulin. Among the newly synthesized compounds, 19c showed noteworthy potency against K562, HepG2, KB, HCT-8 and MDB-MB-231 cancer cells. In vitro microtubule polymerization assays identified 19c as a potent tubulin assembly inhibitor, the binding mode of which with tubulin was confirmed by molecular modeling studies to occupy three zones of tubulin domain. Furthermore, 19c disrupted the intracellular microtubule network, caused G2/M phase arrest, induced cell apoptosis and depolarized mitochondria of K562 cells. 19c also reduced the cell migration and disrupted the capillary-like tube formation of human umbilical vein endothelial cells (HUVECs). Importantly, 19c significantly and dose dependently inhibited tumor growth in H22 liver cancer xenograft mouse model. All these results suggested that 19c deserves further research as a novel and potential anti-tubulin agent for the treatment of cancers.
journal_name
Bioorg Chemjournal_title
Bioorganic chemistryauthors
Li W,Yin Y,Shuai W,Xu F,Yao H,Liu J,Cheng K,Xu J,Zhu Z,Xu Sdoi
10.1016/j.bioorg.2018.10.027subject
Has Abstractpub_date
2019-03-01 00:00:00pages
380-390eissn
0045-2068issn
1090-2120pii
S0045-2068(18)30618-7journal_volume
83pub_type
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