Tissue-Specific GHR Knockout Mice: An Updated Review.

Tissue-Specific GHR Knockout Mice: An Updated Review.
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DOI:
10.3389/fendo.2020.579909
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发表时间:
2020
影响因子:
5.2
通讯作者:
Sun LY
Sun LY
中科院分区:
医学2区
文献类型:
--
作者:
Nagarajan A;Srivastava H;Jablonsky J;Sun LY

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生长激素 (GH) 信号在介导生长、发育、新陈代谢和寿命调节中发挥着关键作用。然而,细胞和分子水平上的长寿调控机制仍不清楚。 GH 研究领域的一个重要领域是开发先进的转基因系统,以细胞类型或组织特异性的方式条件表达 GH 信号传导。最近进行了许多研究来检验组织特异性 GHR 破坏的影响。这篇综述更新了我们之前关于该主题的讨论,并总结了有关新制作的组织特异性 GHR-KO 小鼠的最新数据,包括肠上皮细胞、骨骼、造血干细胞、心肌细胞和特定脑区域。这些新基因工程小鼠的数据对我们了解局部 GH 信号传导功能具有重大影响。
Growth hormone (GH) signaling plays a key role in mediating growth, development, metabolism, and lifespan regulation. However, the mechanisms of longevity regulation at the cellular and molecular level are still not well-understood. An important area in the field of GH research is in the development of advanced transgenic systems for conditional expression of GH signaling in a cell type- or tissue-specific manner. There have been many recent studies conducted to examine the effects of tissue-specific GHR disruption. This review updates our previous discussions on this topic and summarizes recent data on the newly-made tissue-specific GHR-KO mice including intestinal epithelial cells, bone, hematopoietic stem cells, cardiac myocytes, and specific brain regions. The data from these new genetically-engineered mice have a significant impact on our understanding of the local GH signaling function.
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