A resource for the conditional ablation of microRNAs in the mouse.

A resource for the conditional ablation of microRNAs in the mouse.
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DOI:
10.1016/j.celrep.2012.02.008
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发表时间:
2012-04-19
期刊:
影响因子:
8.8
通讯作者:
McManus MT
McManus MT
中科院分区:
生物学1区
文献类型:
--
作者:
Park CY;Jeker LT;Carver-Moore K;Oh A;Liu HJ;Cameron R;Richards H;Li Z;Adler D;Yoshinaga Y;Martinez M;Nefadov M;Abbas AK;Weiss A;Lanier LL;de Jong PJ;Bluestone JA;Srivastava D;McManus MT

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miRNA 在发育和疾病过程中的重要性是众所周知的。然而,大多数研究都是在细胞或患者组织中进行的,因此 miRNA 的生理作用尚不清楚。为了揭示 miRNA 的体内功能,我们针对许多进化上保守的 miRNA 生成了有条件的、带报告标记的敲除小鼠。在这里,我们报告了 162 个 miRNA 靶向载体、64 个靶向 ES 细胞系和 46 个种系传播的 miRNA 敲除小鼠的产生。 18 个品系的体内 lacZ 报告基因分析揭示了高度组织特异性的表达模式,并且它们的 miRNA 表达谱与已发表的表达数据密切匹配。大多数测试的 miRNA 敲除小鼠都是可行的,这支持了 miRNA 与其他 miRNA 或其他通路冗余作用的机制。这些数据和资源收集对于小鼠模型中 miRNA 功能的体内解析具有价值。
The importance of miRNAs during development and disease processes is well established. However, most studies have been done in cells or with patient tissues, and therefore the physiological roles of miRNAs are not well understood. To unravel in vivo functions of miRNAs, we have generated conditional, reporter-tagged knockout-first mice for numerous evolutionarily conserved miRNAs. Here we report the generation of 162 miRNA targeting vectors, 64 targeted ES cell lines, and 46 germline-transmitted miRNA knockout mice. In vivo lacZ reporter analysis in 18 lines revealed highly tissue-specific expression patterns and their miRNA expression profiling matched closely with published expression data. Most miRNA knockout mice tested were viable, supporting a mechanism by which miRNAs act redundantly with other miRNAs or other pathways. These data and collection of resources will be of value for the in vivo dissection of miRNA functions in mouse models.
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