Differential expression of microRNAs at the last stage of hepatic differentiation of mesenchymal stem cells
سال انتشار: 1399
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 196
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شناسه ملی سند علمی:
CIGS16_078
تاریخ نمایه سازی: 14 اردیبهشت 1400
چکیده مقاله:
Background and Aim: MicroRNAs (miRNAs) are small noncoding RNAs that can play essential roles in a wide variety of biological processes from proliferation and differentiation to metabolism and apoptosis. Hepatic differentiation of Mesenchymal Stem Cells (MSCs) is a highly regulated multistep process involving posttranscriptional regulation by microRNAs. In the present study, miRNA expression profiles were determined during hepatocyte-specific differentiation of Adipose Derived Mesenchymal Stem Cells (ADSCs).Methods: In this study, hADSCs were differentiated to hepatocytes by a two-step protocol for ۲۱ days and after characterization of hepatic differentiation of hADSCs by biochemical, morphological and molecular methods, a high throughput array platform (Affymetrix) was used for miRNA profiling at two time points (days ۱۴ and ۲۱).Results: By performing genome-wide miRNA profiling assay, we have identified a signature of ۳۵۴ differentially expressed canonical miRNAs (۱۶۶ upregulated; ۱۸۸ downregulated) during the last stage of hepatic differentiation of ADSCs. Top ۵ ranking miRNAs in volume with significant cut-off, ǀFCǀ≥۲ or ǀFCǀ≤۲, were hsa-miR-۴۴۹۷, hsa-miR-۴۴۵۴, hsa-miR-۲۶a-۵p, hsa-miR-۳۱۷۸, hsa-miR-۲۲۲-۳p.Conclusion: Our findings provide novel molecular insights into the identification of miRNAs regulating hepatic differentiation of ADSCs during the late stages and a roadmap for further understanding MSC biology.
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نویسندگان
Maryam GhaderiGandomani
Department of Biology, Faculty of Sciences, University of Sistan and Baluchestan, Zahedan, Iran
Abbas Sahebghadam Lotfi
Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
Dormohammad Kordi Tamandani
Department of Biology, Faculty of Sciences, University of Sistan and Baluchestan, Zahedan, Iran