Mechanistic studies on the anticancer activity of 2,4-disubstituted quinazoline derivative.
Mechanistic studies on the anticancer activity of 2,4-disubstituted quinazoline derivative.
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2,4-二取代喹唑啉衍生物抗癌活性的机理研究。
DOI:
10.1016/j.bbagen.2014.07.004
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Ding Li
中科院分区:
文献类型:
--
作者:
L. Su;Huaqin Zheng;Zeng Li;J. Qiu;Siqi Chen;Jinggong Liu;Tian;Jia;L. Gu;Zhishu Huang;Ding Li
BackgroundAccelerated proliferation of solid tumor and hematologic cancer cells is related to accelerated transcription of ribosomal DNA by the RNA polymerase I to produce elevated level of ribosomal RNA. Therefore, down-regulation of RNA polymerase I transcription in cancer cells is an important anticancer therapeutic strategy.MethodsA variety of methods were used, including cloning, expression and purification of protein, electrophoretic mobility shift assay (EMSA), circular dichroic (CD) spectroscopy, CD-melting, isothermal titration calorimetry (ITC), chromatin immunoprecipitation (Ch-IP), RNA interference, RT-PCR, Western blot, and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) cell assay.ResultsOur results showed that 2,4-disubstituted quinazoline derivativeSysu12dcould down-regulatec-mycthrough stabilization ofc-mycpromoter G-quadruplex, resulting in down-regulation of nucleolin expression.Sysu12dcould also disrupt nucleolin/G-quadruplex complex. Both of the above contributed to the down-regulation of ribosomal RNA synthesis, followed by activation of p53 and then cancer cell apoptosis.ConclusionsThese mechanistic studies set up the basis for further development ofSysu12das a new type of lead compound for cancer treatment.General significance2,4-Disubstituted quinazoline derivatives may have multi-functional effect for cancer treatment.
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影响因子:
50.3
作者:
Bywater MJ;Poortinga G;Sanij E;Hein N;Peck A;Cullinane C;Wall M;Cluse L;Drygin D;Anderes K;Huser N;Proffitt C;Bliesath J;Haddach M;Schwaebe MK;Ryckman DM;Rice WG;Schmitt C;Lowe SW;Johnstone RW;Pearson RB;McArthur GA;Hannan RD
通讯作者:
Hannan RD
影响因子:
120.1
作者:
Balasubramanian, Shankar;Hurley, Laurence H.;Neidle, Stephen
通讯作者:
Neidle, Stephen
DOI:
10.1016/0192-0561(94)90091-4
发表时间:
1994
期刊:
International journal of immunopharmacology
影响因子:
--
作者:
Mahajan,PB
通讯作者:
Mahajan,PB
DOI:
10.1016/0005-2787(81)90145-3
发表时间:
1981-01-01
期刊:
BIOCHIMICA ET BIOPHYSICA ACTA
影响因子:
--
作者:
ROSS, WE;BRADLEY, MO
通讯作者:
BRADLEY, MO
DOI:
10.1073/pnas.86.24.9682
发表时间:
1989-12-01
影响因子:
11.1
作者:
DAVIS, TL;FIRULLI, AB;KINNIBURGH, AJ
通讯作者:
KINNIBURGH, AJ