小鼠MyoD基因诱导绵羊脐带间充质干细胞为成肌细胞的研究

doi:10.16431/j.cnki.1671-7236.2016.12.022

Abstract

Abstract:

In order to investigate the differentiation of sheep umbilical cord mesenchymal stem cells (UCMSCs) into muscle cells induced by mouse MyoD gene. This study based on the previous work constructed the eukaryotic expression vector of MyoD-pcDNA3.1 in mice, and the vector was transfected into sheep UCMSCs. The morphological changes of cells were observed by fluorescent microsco, the expression of MyoD, Desmin and MyoG genes were detected by immunofluorescence, the percentage of cells expressing the cell specific factor (MyoD, Desmin and MyoG) was analyzed by flow cytometry and Real-time quantitative PCR to detect the relative expression of mRNA relative to muscle cell specific factor. Compared with the control group (no transfection), the vector was transfected into sheep UCMSCs, it was found that the cells were transformed into a long, slender, muscular cell state, and the cell spiral gradually disappeared at 21th day. It was found that MyoD and Desmin showed positive expression by immunofluorescence assay at 8th day, the expression of MyoG was also found after 16 d of induction, and the expression of MyoD decreased, the amount of Desmin expression was no change;By flow cytometry, the percentages of the expression of MyoD, MyoG and Desmin were 93.5%, 97.4% and 99.5%,respectively;Real-time quantitative PCR results showed that the relative expression of MyoD, MyoG and Desmin were increased and compared with the control group (non transfected cells), the cells were increased by 2.046, 2.389 and 5.489 times, respectively. The results showed that mouce MyoD gene could induce the differentiation of sheep UCMSCs into muscle cells.

Key words: mouse; MyoD gene; sheep umbilical cord mesenchymal stem cells; induction; myoblasts

CLC Number:

Q813

ZHANG Bao, MA Li-yuan, WANG Chun-sheng, DU Wen-jing, PIAO Shan-hua, AN Tie-zhu. Study on Differentiation of Sheep Umbilical Cord Mesenchymal Stem Cells into Muscle Cells Induced by Mouse MyoD Gene[J]. , 2016, 43(12): 3232-3238.

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Study on Differentiation of Sheep Umbilical Cord Mesenchymal Stem Cells into Muscle Cells Induced by Mouse MyoD Gene

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