›› 2009, Vol. 36 ›› Issue (8): 38-41.

• 生物技术 • 上一篇    下一篇

microRNA-1,-133,-206在鼠肌肉中的表达谱

田明1,2,费菁2,胡晓湘2,李宁2,刘娣1,孟庆勇2   

  1. (1.东北农业大学动物科学技术学院, 哈尔滨 150030; 2.中国农业大学生物学院农业生物技术国家重点实验室, 北京 100193)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-08-20 发布日期:2009-08-20
  • 通讯作者: 孟庆勇

The Expression of microRNA-1,-133,-206 in the Muscle of Adult Mouse

TIAN Ming1,2, FEI Jing2, HU Xiao-xiang2, LI Ning2, LIU Di1, MENG Qing-yong2   

  1. (1.College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China; 2.State Key Laboratories for AgroBiotechnology, College of Biological Sciences,China Agricultural University, Beijing 100193, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-08-20 Published:2009-08-20
  • Contact: MENG Qing-yong

摘要: MicroRNAs(miRNAs)是一类重要的调节基因转录的非编码小RNA。其中miR-1、miR-133、miR-206是肌肉特异表达的microRNA,同属miR-1家族。它们在胚胎发育时期的表达及作用已有很多文章阐述,但很少有文章详细分析它们在成体中的表达。为检测这3类microRNA的表达差异,选择BALB/c品系小鼠的股二头肌,提取RNA。设计microRNA专用的茎环状引物,通过实时定量PCR,检验miR-1、miR-133、miR-206和miR-181a在骨骼肌组织中的表达情况。结果发现,miR-133的表达量要明显高于miR-1和miR-206,miR-1略高于miR-206的表达量,作为对照,miR-181a的表达量非常微小。分析该现象,根据资料和网络软件预测,绘制这3类microRNA对肌肉生长发育作用的关系图,初步解释各种microRNA之间呈现表达差异的原因。为下一步研究成体中microRNA及其靶位点提供依据和方向。

关键词: miRNA; Real-time PCR; 表达谱

Abstract: MicroRNAs (miRNAs) are small non-coding RNAs emerging as important post-transcriptional gene regulators. miR-1, miR-133, miR-206 are the miRNAs specifically expressed in skeletal muscle tissue, they all belong to miR-1 family, but divide into miR-1/miR-206 and miR-133a/b. The expression and the roles of them in embryogenesis have been expounded by many literatures, but few article refers to the expression of them in adult. In this study, examined the expression of miR-1, miR-133 and miR-206, the miRNAs specifically expressed in skeletal muscle tissue, on the biceps flexor cruris of BALB/c mouse by Real-time PCR, and miR-181a is as the control. The expression of miR-133 is much more than that of the miR-1 and miR-206; the expression of miR-1 is a little more than miR-206’s when the miR-181a is little expression. To find the reason of this phenomenon, the map of the relation between the microRNA and the growing of muscle was pr〖JP〗otract by literature and network forecast. This result provides the evidence and the direction for the following research of microRNA and target gene in adult.

Key words: miRNA; Real-time PCR; expression

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