Short exposure to hyperoxia causes cultured lung epithelial cell mitochondrial dysregulation and alveolar simplification in mice.
Short exposure to hyperoxia causes cultured lung epithelial cell mitochondrial dysregulation and alveolar simplification in mice.
复制标题
短期暴露于高氧会导致培养的肺上皮细胞线粒体失调和小鼠肺泡简化。
DOI:
10.1038/s41390-020-01224-5
复制
发表时间:
2021-07
影响因子:
3.6
通讯作者:
Dennery PA
中科院分区:
文献类型:
--
作者:
Garcia D;Carr JF;Chan F;Peterson AL;Ellis KA;Scaffa A;Ghio AJ;Yao H;Dennery PA
Prolonged exposure to high oxygen concentrations in premature infants, although lifesaving, can induce lung oxidative stress and increase the risk of developing BPD, a form of chronic lung disease. The lung alveolar epithelium is damaged by sustained hyperoxia, causing oxidative stress and alveolar simplification, however, it is unclear what duration of exposure to hyperoxia negatively impacts cellular function. Here we investigated the role of a very short exposure to hyperoxia (95% O2, 5% CO2) on mitochondrial function in cultured mouse lung epithelial cells and neonatal mice. In epithelial cells, 4 hours of hyperoxia reduced oxidative phosphorylation, respiratory complex I and IV activity, utilization of mitochondrial metabolites, and caused mitochondria to form elongated tubular networks. Cells allowed to recover in air for 24 hours exhibited a persistent global reduction in fuel utilization. In addition, neonatal mice exposed to hyperoxia for only 12 hours demonstrated alveolar simplification at postnatal day 14. A short exposure to hyperoxia leads to changes in lung cell mitochondrial metabolism and dynamics, and has a long term impact on alveolarization. These findings may help inform our understanding and treatment of chronic lung disease.
登录
查看更多内容
影响因子:
21.3
作者:
通讯作者:
--
影响因子:
10
作者:
COONEY, TP;THURLBECK, WM
通讯作者:
THURLBECK, WM
DOI:
10.1152/ajplung.00298.2013
发表时间:
2014-05-01
影响因子:
4.9
作者:
Lottes, Robyn G.;Newton, Danforth A.;Baatz, John E.
通讯作者:
Baatz, John E.
影响因子:
15.9
作者:
Mizumura, Kenji;Cloonan, Suzanne M.;Choi, Augustine M. K.
通讯作者:
Choi, Augustine M. K.
影响因子:
2.3
作者:
Farrow KN;Wedgwood S;Lee KJ;Czech L;Gugino SF;Lakshminrusimha S;Schumacker PT;Steinhorn RH
通讯作者:
Steinhorn RH