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Middle East Journal of Cancer، جلد ۱۰، شماره ۴، صفحات ۲۹۲-۲۹۸
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عنوان انگلیسی Investigating the Effect of Ibuprofen on DLL1 and NOTCH1 Expression in Gastric Cancer Stem Cells Derived from MKN-45 Cell Line
چکیده انگلیسی مقاله Background: Cancer stem cells (CSCs) harbor the self-renewal properties of the embryonic stem cells in addition to differentiation. While maintaining the balance between self-renewal and differentiation is required for homeostasis, dysregulation in the stem cell signaling pathways such as Notch signaling increases the proliferation of these cells. As a result, tumorigenic properties are obtained. Therefore, it appears that by targeting the CSCs, the generation of new cells could be reduced and the tumor could be contained. Ibuprofen is one of the nonsteroidal anti-inflammatory drugs that are in use to control pain and inflammation. They inhibit cyclooxygenase 1, 2 (COX1,2) activity and synthesis of prostaglandins. Recent studies have provided some evidence for the anti-tumor activities of NSAIDs through inhibition of cell proliferation. Methods: In this study, we investigate the changes in the expression patterns of two key genes, i.e., DLL1 and NOTCH1, which are involved in the Notch signaling pathway in the MKN-45 derived gastric CSCs treated with ibuprofen. Results: Our results showed that ibuprofen up-regulates the expression of the DLL1 gene (4.1 fold) and reduces 68% the transcript level of the NOTCH1 gene (Pvalue < 0.05). These findings show that in gastric CSCs, NOTCH1 gene may act as an oncogene and, conversely, DLL1 gene may act as a tumor suppressor gene. Conclusion: Our findings suggest that ibuprofen, by targeting CSCs, may be used as an adjuvant chemotherapy drug to improve gastric cancer treatment outcomes.
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نویسندگان مقاله Mohsen Farhangian |
Department of Biology, Faculty of Sciences, Razi University, Kermanshah, Iran

Frouzan Azarafrouz |
Department of Biology, Faculty of Sciences, Razi University, Kermanshah, Iran

Hossein Fallahi |
Department of Biology, Faculty of Sciences, Razi University, Kermanshah, Iran

Hassan Akrami |
Department of Biology, Faculty of Sciences, Razi University, Kermanshah, Iran

نشانی اینترنتی http://mejc.sums.ac.ir/article_45542_91b01dde0c3db6840be07e8de4817854.pdf
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