Involvement of Akt and endothelial nitric oxide synthase in ventilation-induced neutrophil infiltration: a prospective, controlled animal experiment.
Involvement of Akt and endothelial nitric oxide synthase in ventilation-induced neutrophil infiltration: a prospective, controlled animal experiment.
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DOI:
10.1186/cc6101
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发表时间:
2007
期刊:
影响因子:
--
通讯作者:
Quinn DA
中科院分区:
文献类型:
--
作者:
Li LF;Liao SK;Lee CH;Huang CC;Quinn DA
Positive pressure ventilation with large tidal volumes has been shown to cause release of cytokines, including macrophage inflammatory protein-2 (MIP-2), a functional equivalent of human IL-8, and neutrophil infiltration. Hyperoxia has been shown to increase ventilator-induced lung injury, but the mechanisms regulating interaction between a large tidal volume and hyperoxia are unclear. We hypothesized that large tidal volume ventilation using hyperoxia would increase MIP-2 production and neutrophil infiltration via the serine/threonine kinase/protein kinase B (Akt) pathway and the endothelial nitric oxide synthase (eNOS) pathway. C57BL/6 mice were exposed to large tidal volume (30 ml/kg) mechanical ventilation with room air or hyperoxia for 1–5 hours. Large tidal volume ventilation using hyperoxia induced neutrophil migration into the lung, MIP-2 production, and Akt and eNOS activation in a time-dependent manner. Both the large tidal volume ventilation of Akt mutant mice and the pharmacological inhibition of Akt with LY294002 attenuated neutrophil sequestration, MIP-2 protein production, and Akt and eNOS activation. We conclude that hyperoxia increased large tidal volume-induced MIP-2 production and neutrophil influx through activation of the Akt and eNOS pathways.
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DOI:
10.1152/ajplung.00031.2003
发表时间:
2003-08-01
影响因子:
4.9
作者:
Li, LF;Ouyang, B;Quinn, DA
通讯作者:
Quinn, DA
影响因子:
64.8
作者:
Dimmeler, S;Fleming, I;Zeiher, AM
通讯作者:
Zeiher, AM
DOI:
10.1164/ajrccm.163.3.2003001
发表时间:
2001-03-01
影响因子:
24.7
作者:
Held, HD;Boettcher, S;Uhlig, S
通讯作者:
Uhlig, S
DOI:
10.1152/ajplung.00124.2001
发表时间:
2002-05-01
影响因子:
4.9
作者:
Uhlig, S
通讯作者:
Uhlig, S
DOI:
10.1186/cc5704
发表时间:
2007
期刊:
Critical care (London, England)
影响因子:
--
作者:
Li LF;Liao SK;Ko YS;Lee CH;Quinn DA
通讯作者:
Quinn DA