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Iranian Journal of Basic Medical Sciences، جلد ۲۲، شماره ۸، صفحات ۸۷۸-۸۸۳
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عنوان انگلیسی Effect of let-7a overexpression on the differentiation of conjunctiva mesenchymal stem cells into photoreceptor-like cells
چکیده انگلیسی مقاله Objective(s): MicroRNAs (miRNAs) could regulate many cellular processes such as proliferation and differentiation. let-7a miRNA is one of the key regulators in the developmental transition of retinal progenitor cells into differentiated cells. Current evidence suggests that mesenchymal stem cells (MSCs) can isolate from various tissues such as bone marrow and conjunctiva. In this study, we investigated the effect of let-7a overexpression on induced differentiation of conjunctiva mesenchymal stem cells (CJMSCs) into photoreceptor-like cells.Materials and Methods: After isolation and characterization, CJMSCs were transduced with lentiviruses containing let-7a or empty vector. The effect of let-7a overexpression on expression of photoreceptor-specific markers was evaluated by quantitative real-time PCR (RT-qPCR) after 28 and 42 days of transduction.Results: The relative expression of rhodopsin and recoverin genes was evaluated by RT-qPCR in let-7a overexpressing cells, control vector transduced cells and untransduced CJMSCs (control cells). Our results indicated that following overexpression of let-7a, after 28 and 42 days of transduction, significant up-regulation in the expression of recoverin (574.7 and 43.9 folds) and rhodopsin (3334.7 and 53.1 folds) were observed, respectively.Conclusion: Our findings indicate that overexpression of let-7a microRNA can increase the expression of photoreceptor-specific genes in CJMSCs. Moreover, it is prospective that let-7a overexpression can use as an alternative protocol for the differentiation of mesenchymal stem cells into photoreceptors. It seems that the effect of let-7a on the differentiation of CJMSCs into photoreceptors is also time-dependent.
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نویسندگان مقاله | Fatemeh Ranjbarnejad
Department of Genetics and Molecular Medicine, Zanjan University of Medical Sciences, End of Mahdavi Blvd, Shahrak-e Karmandan, 4513956111, Zanjan, Iran


| Samad Nadri
Department of Medical Nanotechnology, Zanjan University of Medical Sciences, End of Mahdavi Blvd, Shahrak-e Karmandan, 4513956111, Zanjan, Iran|Cancer Gene Therapy Research Center, Zanjan University of Medical Sciences, End of Mahdavi Blvd, Shahrak-e Karmandan, 4513956111, Zanjan, Iran


| Alireza Biglari
Department of Genetics and Molecular Medicine, Zanjan University of Medical Sciences, End of Mahdavi Blvd, Shahrak-e Karmandan, 4513956111, Zanjan, Iran|Cancer Gene Therapy Research Center, Zanjan University of Medical Sciences, End of Mahdavi Blvd, Shahrak-e Karmandan, 4513956111, Zanjan, Iran


| Samira Mohammadi Yeganeh
Department of Biotechnology, Shahid Beheshti University of Medical Sciences, Velenjak, 7th Floor, Bldg No 2 SBUMS, Arabi Ave, 19839-63113, Tehran, Iran


| Mahdi Paryan
Department of Research and Development, Production and Research Complex, Pasteur Institute, No 69, Pasteur Ave, 1316943551, Tehran, Iran
نشانی اینترنتی http://ijbms.mums.ac.ir/article_13237.html
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Article
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