DMH1 (4-[6-(4-isopropoxyphenyl)pyrazolo[1,5-a]pyrimidin-3-yl]quinoline) inhibits chemotherapeutic drug-induced autophagy

Our previous work found that DMH1 (4-[6-(4-isopropoxyphenyl)pyrazolo [1,5-a]pyrimidin-3-yl]quinoline) was a novel autophagy inhibitor. Here, we aimed to investigate the effects of DMH1 on chemotherapeutic drug-induced autophagy as well as the efficacy of chemotherapeutic drugs in different cancer ce...

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Main Authors: Yue Sheng, Bo Sun, Xin Xie, Na Li, Deli Dong
Format: Article
Language:English
Published: Elsevier 2015-07-01
Series:Acta Pharmaceutica Sinica B
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2211383515000027
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author Yue Sheng
Bo Sun
Xin Xie
Na Li
Deli Dong
author_facet Yue Sheng
Bo Sun
Xin Xie
Na Li
Deli Dong
author_sort Yue Sheng
collection DOAJ
description Our previous work found that DMH1 (4-[6-(4-isopropoxyphenyl)pyrazolo [1,5-a]pyrimidin-3-yl]quinoline) was a novel autophagy inhibitor. Here, we aimed to investigate the effects of DMH1 on chemotherapeutic drug-induced autophagy as well as the efficacy of chemotherapeutic drugs in different cancer cells. We found that DMH1 inhibited tamoxifen- and cispcis-diaminedichloroplatinum (II) (CDDP)-induced autophagy responses in MCF-7 and HeLa cells, and potentiated the anti-tumor activity of tamoxifen and CDDP for both cells. DMH1 inhibited 5-fluorouracil (5-FU)-induced autophagy responses in MCF-7 and HeLa cells, but did not affect the anti-tumor activity of 5-FU for these two cell lines. DMH1 itself did not induce cell death in MCF-7 and HeLa cells, but inhibited the proliferation of these cells. In conclusion, DMH1 inhibits chemotherapeutic drug-induced autophagy response and the enhancement of efficacy of chemotherapeutic drugs by DMH1 is dependent on the cell sensitivity to drugs.
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spelling doaj.art-3082f0954a73445e9795432fef652b872022-12-22T01:02:25ZengElsevierActa Pharmaceutica Sinica B2211-38352211-38432015-07-015433033610.1016/j.apsb.2014.12.010DMH1 (4-[6-(4-isopropoxyphenyl)pyrazolo[1,5-a]pyrimidin-3-yl]quinoline) inhibits chemotherapeutic drug-induced autophagyYue ShengBo SunXin XieNa LiDeli DongOur previous work found that DMH1 (4-[6-(4-isopropoxyphenyl)pyrazolo [1,5-a]pyrimidin-3-yl]quinoline) was a novel autophagy inhibitor. Here, we aimed to investigate the effects of DMH1 on chemotherapeutic drug-induced autophagy as well as the efficacy of chemotherapeutic drugs in different cancer cells. We found that DMH1 inhibited tamoxifen- and cispcis-diaminedichloroplatinum (II) (CDDP)-induced autophagy responses in MCF-7 and HeLa cells, and potentiated the anti-tumor activity of tamoxifen and CDDP for both cells. DMH1 inhibited 5-fluorouracil (5-FU)-induced autophagy responses in MCF-7 and HeLa cells, but did not affect the anti-tumor activity of 5-FU for these two cell lines. DMH1 itself did not induce cell death in MCF-7 and HeLa cells, but inhibited the proliferation of these cells. In conclusion, DMH1 inhibits chemotherapeutic drug-induced autophagy response and the enhancement of efficacy of chemotherapeutic drugs by DMH1 is dependent on the cell sensitivity to drugs.http://www.sciencedirect.com/science/article/pii/S2211383515000027AutophagyTamoxifen5-FluorouracilCancer cells
spellingShingle Yue Sheng
Bo Sun
Xin Xie
Na Li
Deli Dong
DMH1 (4-[6-(4-isopropoxyphenyl)pyrazolo[1,5-a]pyrimidin-3-yl]quinoline) inhibits chemotherapeutic drug-induced autophagy
Acta Pharmaceutica Sinica B
Autophagy
Tamoxifen
5-Fluorouracil
Cancer cells
title DMH1 (4-[6-(4-isopropoxyphenyl)pyrazolo[1,5-a]pyrimidin-3-yl]quinoline) inhibits chemotherapeutic drug-induced autophagy
title_full DMH1 (4-[6-(4-isopropoxyphenyl)pyrazolo[1,5-a]pyrimidin-3-yl]quinoline) inhibits chemotherapeutic drug-induced autophagy
title_fullStr DMH1 (4-[6-(4-isopropoxyphenyl)pyrazolo[1,5-a]pyrimidin-3-yl]quinoline) inhibits chemotherapeutic drug-induced autophagy
title_full_unstemmed DMH1 (4-[6-(4-isopropoxyphenyl)pyrazolo[1,5-a]pyrimidin-3-yl]quinoline) inhibits chemotherapeutic drug-induced autophagy
title_short DMH1 (4-[6-(4-isopropoxyphenyl)pyrazolo[1,5-a]pyrimidin-3-yl]quinoline) inhibits chemotherapeutic drug-induced autophagy
title_sort dmh1 4 6 4 isopropoxyphenyl pyrazolo 1 5 a pyrimidin 3 yl quinoline inhibits chemotherapeutic drug induced autophagy
topic Autophagy
Tamoxifen
5-Fluorouracil
Cancer cells
url http://www.sciencedirect.com/science/article/pii/S2211383515000027
work_keys_str_mv AT yuesheng dmh1464isopropoxyphenylpyrazolo15apyrimidin3ylquinolineinhibitschemotherapeuticdruginducedautophagy
AT bosun dmh1464isopropoxyphenylpyrazolo15apyrimidin3ylquinolineinhibitschemotherapeuticdruginducedautophagy
AT xinxie dmh1464isopropoxyphenylpyrazolo15apyrimidin3ylquinolineinhibitschemotherapeuticdruginducedautophagy
AT nali dmh1464isopropoxyphenylpyrazolo15apyrimidin3ylquinolineinhibitschemotherapeuticdruginducedautophagy
AT delidong dmh1464isopropoxyphenylpyrazolo15apyrimidin3ylquinolineinhibitschemotherapeuticdruginducedautophagy