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Emodin inhibits the proliferation and invasion of bladder cancer cells via down-regulating Notch1.

ABSTRACT: Emodin exhibits anti-proliferative effects in numerous cancer cell lines via different mechanisms. The present study aimed to study the effects and underlying molecular mechanisms of emodin on bladder cancer cells. We treated two bladder cancer cell lines, T24 and 5637, with different concentrations of emodin (20, 40 and 80 µmol/L) or DMSO (Control). We analyzed the biological effects of emodin on cell growth, invasion, as well as the mRNA and protein expression of Notch1, Jagged1, VEGF, VEGFR2 and MMP2 using Cell Counting Kit-8, transwell, reverse transcription-quantitative PCR and western blot assays. Emodin repressed cell growth, invasion and Notch1 expression in a concentration-dependent fashion. And Notch1 over-expression assay showed that the anti-proliferative and anti-invasive roles of emodin, along with the down-regulated effects on the expression of Notch1, Jagged1, VEGF, VEGFR2 and MMP2 were partially rescued by Notch1 over-expression. In conclusion, Emodin might suppress the progression of bladder cancer via inhibiting the expression of Notch1.

SUBMITTER: Ma L

PROVIDER: S-EPMC6965949 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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Emodin inhibits the proliferation and invasion of bladder cancer cells via down-regulating Notch1.

Ma Libin L Chen Kean K Jiang Kang K Deng Gang G Jiang Peiwu P Shao Jia J Yu Zhijian Z

International journal of clinical and experimental pathology 20170901 9

Emodin exhibits anti-proliferative effects in numerous cancer cell lines via different mechanisms. The present study aimed to study the effects and underlying molecular mechanisms of emodin on bladder cancer cells. We treated two bladder cancer cell lines, T24 and 5637, with different concentrations of emodin (20, 40 and 80 µmol/L) or DMSO (Control). We analyzed the biological effects of emodin on cell growth, invasion, as well as the mRNA and protein expression of Notch1, Jagged1, VEGF, VEGFR2 ...[more]

PMID: 31966818

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Project description:Although our previous studies have confirmed that 1, 3, 8-trihydroxy-6-methylant hraquinone (emodin) inhibits migration and invasion in epithelial ovarian cancer (EOC) cells, the underlying molecular mechanism remains unknown. Here, the aim was to investigate the effects of emodin on EOC cells and to study further the mechanism underlying this process, both in vitro and in vivo.Cell proliferation was evaluated by the methylthiazolyl tetrazolium assay. Cell migration and invasion abilities were tested using the transwell assay. The expression of integrin-linked kinase (ILK) and epithelial-mesenchymal transition (EMT)-associated factors were measured with western blotting.Exogenous ILK enhanced the proliferation, migration and invasion properties of A2780 and SK-OV-3 cells. After treatment with emodin, the survival rate of cells was gradually reduced, including those of SK-OV-3/pLVX-ILK and A2780/pLVX-ILK cells, with increasing emodin concentrations. The migration and invasion abilities of A2780 and SK-OV-3 cells were effectively increased by the transfection of pLVX-ILK, which could be abrogated by following this with 48 hours of emodin treatment. Treatment with emodin significantly downregulated the expression of ILK and EMT-related proteins. So, emodin suppressed proliferation, migration and invasion in ovarian cancer cells by downregulating ILK in vitro. SK-OV-3/pLVX-Con and SK-OV-3/pLVX-ILK cells were used to generate xenografts in nude mice. Tumors grew more rapidly in the SK-OV-3/pLVX-ILK group compared with the control group, and this could be significantly inhibited by emodin. Also, the expression of E-cadherin was downregulated, while the expression of Slug, MMP-9 and Vimentin were upregulated in the SK-OV-3/pLVX-ILK group, and this could be reversed by following treatment with emodin. Emodin did not demonstrate target toxicity on hepatocytes, nephrocytes and cardiomyocytes.Emodin suppresses proliferation, migration and invasion in ovarian cancer by targeting ILK.

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Emodin inhibits the proliferation and invasion of bladder cancer cells via down-regulating Notch1.

Publications

Emodin inhibits the proliferation and invasion of bladder cancer cells via down-regulating Notch1.

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