NADPH oxidase mediates microtubule alterations and diaphragm dysfunction in dystrophic mice

Skeletal muscle from mdx mice is characterized by increased Nox2 ROS, altered microtubule network, increased muscle stiffness, and decreased muscle/respiratory function. While microtubule de-tyrosination has been suggested to increase stiffness and Nox2 ROS production in isolated single myofibers, i...

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Published in:eLife Vol. 7. P. e31732 (1-19)
Other Authors: Loehr, James Anthony, Cully, Tanya R., Pal, Rituraj, Larina, Irina V., Larin, Kirill V., Rodney, George G., Wang, Shang
Format: Article
Language:English
Subjects:
Online Access:http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000628506
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039 9 |a 201806070916  |c 201806061628  |d VLOAD  |y 201806061610  |z Александр Эльверович Гилязов 
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245 1 0 |a NADPH oxidase mediates microtubule alterations and diaphragm dysfunction in dystrophic mice  |c J. A. Loehr, S. Wang, T. R. Cully [et.al.] 
504 |a Библиогр.: с. e31732 (15-19) 
520 3 |a Skeletal muscle from mdx mice is characterized by increased Nox2 ROS, altered microtubule network, increased muscle stiffness, and decreased muscle/respiratory function. While microtubule de-tyrosination has been suggested to increase stiffness and Nox2 ROS production in isolated single myofibers, its role in altering tissue stiffness and muscle function has not been established. Because Nox2 ROS production is upregulated prior to microtubule network alterations and ROS affect microtubule formation, we investigated the role of Nox2 ROS in diaphragm tissue microtubule organization, stiffness and muscle/respiratory function. Eliminating Nox2 ROS prevents microtubule disorganization and reduces fibrosis and muscle stiffness in mdx diaphragm. Fibrosis accounts for the majority of variance in diaphragm stiffness and decreased function, implicating altered extracellular matrix and not microtubule de-tyrosination as a modulator of diaphragm tissue function. Ultimately, inhibiting Nox2 ROS production increased force and respiratory function in dystrophic diaphragm, establishing Nox2 as a potential therapeutic target in Duchenne muscular dystrophy. 
653 |a микротрубочки 
653 |a диафрагма 
653 |a Дюшенна мышечная дистрофия 
653 |a скелетные мышцы 
653 |a НАДФH-оксидаза 
655 4 |a статьи в журналах  |9 879358 
700 1 |a Loehr, James Anthony  |9 173515 
700 1 |a Cully, Tanya R.  |9 173516 
700 1 |a Pal, Rituraj  |9 173517 
700 1 |a Larina, Irina V.  |9 173518 
700 1 |a Larin, Kirill V.  |9 153792 
700 1 |a Rodney, George G.  |9 173519 
700 1 |a Wang, Shang  |9 173520 
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