Ros-mediated activation of NF-kappaB and Foxo during muscle disuse.

Ros-mediated activation of NF-kappaB and Foxo during muscle disuse.
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ROS介导的NF-kappab和Foxo在肌肉废除过程中的激活。

DOI:
10.1002/mus.21526
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发表时间:
2010-01
期刊:
影响因子:
3.4
通讯作者:
Judge, Andrew R.
Judge, Andrew R.
中科院分区:
医学3区
文献类型:
--
作者:
Dodd, Stephen L.;Gagnon, Brittany J.;Senf, Sarah M.;Hain, Brian A.;Judge, Andrew R.

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我们检测了废用性萎缩过程中骨骼肌中活性氧作为NF-κB和Foxo的上游激活剂。过氧化氢酶,一种酶,降解过氧化氢,过表达在比目鱼肌通过质粒注射前7天的后肢制动。增加的过氧化氢酶活性消除了固定诱导的NF-κB和Foxo的反式激活,并减轻了肌肉质量的损失。因此,H2 O2可能是导致肌肉萎缩的这些信号通路的重要引发剂。
We examined reactive oxygen species as upstream activators of NF-κB and Foxo in skeletal muscle during disuse atrophy. Catalase, an enzyme that degrades H2O2, was overexpressed in soleus muscles via plasmid injection prior to seven days of hind limb immobilization. The increased catalase activity abolished immobilization-induced transactivation of both NF-κB and Foxo, and it attenuated the loss of muscle mass. Thus, H2O2 may be an important initiator of these signaling pathways which lead to muscle atrophy.
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