دورية أكاديمية
Inducible and reversible inhibition of miRNA-mediated gene repression in vivo
| العنوان: | Inducible and reversible inhibition of miRNA-mediated gene repression in vivo |
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| المؤلفون: | Gaspare La Rocca, Bryan King, Bing Shui, Xiaoyi Li, Minsi Zhang, Kemal M Akat, Paul Ogrodowski, Chiara Mastroleo, Kevin Chen, Vincenzo Cavalieri, Yilun Ma, Viviana Anelli, Doron Betel, Joana Vidigal, Thomas Tuschl, Gunter Meister, Craig B Thompson, Tullia Lindsten, Kevin Haigis, Andrea Ventura |
| المصدر: | eLife, Vol 10 (2021) |
| بيانات النشر: | eLife Sciences Publications Ltd, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Medicine LCC:Science LCC:Biology (General) |
| مصطلحات موضوعية: | microRNA, RISC, argonaute, T6B, miRISC, TNRC6, Medicine, Science, Biology (General), QH301-705.5 |
| الوصف: | Although virtually all gene networks are predicted to be controlled by miRNAs, the contribution of this important layer of gene regulation to tissue homeostasis in adult animals remains unclear. Gain and loss-of-function experiments have provided key insights into the specific function of individual miRNAs, but effective genetic tools to study the functional consequences of global inhibition of miRNA activity in vivo are lacking. Here we report the generation and characterization of a genetically engineered mouse strain in which miRNA-mediated gene repression can be reversibly inhibited without affecting miRNA biogenesis or abundance. We demonstrate the usefulness of this strategy by investigating the consequences of acute inhibition of miRNA function in adult animals. We find that different tissues and organs respond differently to global loss of miRNA function. While miRNA-mediated gene repression is essential for the homeostasis of the heart and the skeletal muscle, it is largely dispensable in the majority of other organs. Even in tissues where it is not required for homeostasis, such as the intestine and hematopoietic system, miRNA activity can become essential during regeneration following acute injury. These data support a model where many metazoan tissues primarily rely on miRNA function to respond to potentially pathogenic events. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2050-084X |
| العلاقة: | https://elifesciences.org/articles/70948Test; https://doaj.org/toc/2050-084XTest |
| DOI: | 10.7554/eLife.70948 |
| الوصول الحر: | https://doaj.org/article/caa7c7e535be45199b348ce0b4f5658fTest |
| رقم الانضمام: | edsdoj.7c7e535be45199b348ce0b4f5658f |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 2050084X |
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| DOI: | 10.7554/eLife.70948 |