梅花鹿Thymosin beta 10基因RNAi慢病毒载体的构建及其对鹿茸干细胞增殖的影响 |
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引用本文: | 张伟,褚文辉,路晓,董振,王权威,李春义.梅花鹿Thymosin beta 10基因RNAi慢病毒载体的构建及其对鹿茸干细胞增殖的影响[J].吉林农业大学学报,2016(1). |
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作者姓名: | 张伟 褚文辉 路晓 董振 王权威 李春义 |
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作者单位: | 中国农业科学院特产研究所,特种经济动物分子生物学省部共建国家重点实验室,长春130112 |
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基金项目: | "十二五"国家高技术研究发展计划(863)项目(2011AA100603),国家自然科学基金项目(31170950),中国农业科学院特产研究所创新工程专项经费 |
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摘 要: | 利用慢病毒干扰系统,对梅花鹿生茸区骨膜干细胞(Antlerogenic periosteum cells,AP细胞)Thymosin beta 10(Tβ10)基因进行RNA干扰(RNA Interference,RNAi),并初步研究该基因对细胞增殖的影响。结果表明:试验设计的3条针对梅花鹿Tβ10基因的shRNA序列与载体质粒p LVTHM连接成功,与p SPAX2、p MD2.G质粒共转染HEK 293T细胞,获得的重组慢病毒成功感染了AP细胞;荧光定量PCR检测结果表明,RNA干扰后Tβ10基因的mRNA水平下调,MTT试验结果显示Tβ10基因的下调可以抑制AP细胞增殖。试验成功构建了针对梅花鹿Tβ10基因RNAi载体,并成功干扰了Tβ10基因在AP细胞中的表达,基因下调最高可达35.6%,并初步确定Tβ10基因下调可抑制AP细胞的增殖。
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关 键 词: | 鹿茸 Thymosinbeta10(Tβ10) RNA干扰 增殖 |
Construction of RNAi Lentiviral Vector for Thymosin beta 10 and Effects of Its Introduction on Proliferation of Antler Stem Cells in Si-ka Deer |
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Abstract: | Thymosin beta 10 ( Tβ10) gene of antlerogenic periosteum cells of Chinese sika deer was interfered by using RNAi lentiviral vector system, and effects of the system introduction on prolifera-tion of antler stem cells were primarily studied. The results showed that: (1) Three sequences of small interfering RNAs, targeting Tβ10 gene of sika deer, were successfully ligated into the lentivi-ral plasmids (pLVTHM);(2) AP cells were successfully infected by recombinant lentivirus, which was obtained by each plasmid co-transfection into HEK 293t cells, together with the plasmids pS-PAX2 and pMD2. G;(3) The expression level of Tβ10 mRNA in the infected AP cells was signifi-cantly decreased through RT-PCR measurement, and the interference of Tβ10 played a role in the suppression of proliferation of AP cells through MTT assay. Therefore, in this study we successfully interfered Tβ10 gene in the AP cells with the efficiency of 35. 6% compared to the control, and ob-tained preliminary results for the role of Tβ10 in AP cells. |
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Keywords: | deer antler Thymosin beta 10( Tβ10) RNAi proliferation |
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