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International Journal of Organ Transplantation Medicine، جلد ۸، شماره ۴، صفحات ۰-۰
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عنوان انگلیسی Increased c-myc and miR-33 Expression in Expanded Hematopoietic Stem Cells Cultured on Adipose Stem Cells Feeder Layer
چکیده انگلیسی مقاله Background: Umbilical cord blood has been used for transplantation in regenerative medicine of hematological disorders. MicroRNAs are important regulators of gene expression that control both physiological and pathological processes such as development and cancer. Some studies have shown that miR-33, p53 and c-myc have critical roles in control of self-renewal cells. Objective: To understand the effect of adipose-derived mesenchymal stem cells (ADSCs), as a feeder layer, on expansion of HSCs, the expression of p53 and miR-33a were evaluated. Methods: Isolated human ADSCs in passage 3 were cultured as a feeder layer. Ex vivo cultures of cord blood CD34+ cells were performed in three culture conditions for 7 days: cytokines with ADSCs feeder layer, cytokines without ADSCs feeder layer, and co-culture with ADSCs without cytokine. Expression of genes p53, c-myc and miR-33 were analyzed by real-time PCR. Results: The expression of p53 was significantly down-regulated in HSCs directly cultured on ADSCs feeder layer compared to that cultured without feeder layer. The expression of miR-33a was significantly upregulated in HSCs directly cultured on feeder layer compare to that cultured without feeder layer. Conclusion: Defining the role of ADSCs in controlling the HSC self-renewal through miR-33, p53 and c-myc may lead to the treatment and prevention of hematopoietic disorders.
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نویسندگان مقاله | T Foroutan
Department of Animal Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
نشانی اینترنتی http://www.ijotm.com/ojs/index.php/IJOTM/article/view/367
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/221/article-221-807864.pdf
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Articles
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