2019
DOI: 10.1038/s41374-019-0193-1
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Anti-cancer effect of doxorubicin is mediated by downregulation of HMG-Co A reductase via inhibition of EGFR/Src pathway

Abstract: Doxorubicin is a widely used DNA damage-inducing anti-cancer drug. However, its use is limited by its dose-dependent side effects, such as cardiac toxicity. Cholesterol-lowering statin drugs increase the efficacy of some anti-cancer drugs. Cholesterol is important for cell growth and a critical component of lipid rafts, which are plasma membrane microdomains important for cell signaling. 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase (HMG-CR) is a critical enzyme in cholesterol synthesis. Here, we s… Show more

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Cited by 36 publications
(31 citation statements)
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“…As shown in Figure 14, all of the examined breast cancer cell lines exhibited an increase in the resistance to the 4-OH-tamoxifen or doxorubicin, confirming that cholesterol and mevalonate induce chemotherapy resistance in breast cancer cells. The observed doxorubicin resistance finds validation in a previous report, which linked the antitumor effect of doxorubicin to its inhibitory effect on the HMGCR function [52]. Moreover, to confirm the close correlation between drug resistance induced by cholesterol and mevalonate through both ERRα and related pathway activation, we performed the same experiment in the presence of XCT790.…”
Section: Mevalonate and Cholesterol Induce Chemotherapy Drug Resistancesupporting
confidence: 74%
“…As shown in Figure 14, all of the examined breast cancer cell lines exhibited an increase in the resistance to the 4-OH-tamoxifen or doxorubicin, confirming that cholesterol and mevalonate induce chemotherapy resistance in breast cancer cells. The observed doxorubicin resistance finds validation in a previous report, which linked the antitumor effect of doxorubicin to its inhibitory effect on the HMGCR function [52]. Moreover, to confirm the close correlation between drug resistance induced by cholesterol and mevalonate through both ERRα and related pathway activation, we performed the same experiment in the presence of XCT790.…”
Section: Mevalonate and Cholesterol Induce Chemotherapy Drug Resistancesupporting
confidence: 74%
“…According with this, it has been suggested that several anticancer drugs may have anti-proliferative function, limiting the content or production of cholesterol. For instance, it has been shown that doxorubicin caused the death of cancer cells by promoting a reduction in HMGCR levels and causing a decrease in cholesterol content (Yun et al, 2019). Other data displayed that tamoxifen modulated cholesterol metabolism in breast cancer cells (Segala et al, 2013).…”
Section: Targeting Cholesterol Pathways As Cancer Therapymentioning
confidence: 99%
“…In cardiomyocytes, DOX also upregulates oxysterols and hence elicits LXR activation 34 . On the other hand, other studies report downregulation of 3-hydroxy-3-methyl-glutaryl-coenzyme A reductase (HMGCR) in epidermal and prostate cancer cell lines 35 . Furthermore, chemotherapy may modify the cholesterol efflux from the environment of the cell, which could affect the cholesterol content in many cellular compartments 36 .…”
Section: Regulation Of the De Novo Lipogenesis Of Fatty Acids Glycermentioning
confidence: 99%