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2017 ; 2017
(ä): 9634803
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Maresin 1 Ameliorates Lung Ischemia/Reperfusion Injury by Suppressing Oxidative
Stress via Activation of the Nrf-2-Mediated HO-1 Signaling Pathway
#MMPMID28751936
Sun Q
; Wu Y
; Zhao F
; Wang J
Oxid Med Cell Longev
2017[]; 2017
(ä): 9634803
PMID28751936
show ga
Lung ischemia/reperfusion (I/R) injury occurs in various clinical conditions and
heavily damaged lung function. Oxidative stress reaction and antioxidant enzymes
play a pivotal role in the etiopathogenesis of lung I/R injury. In the current
study, we investigated the impact of Maresin 1 on lung I/R injury and explored
the possible mechanism involved in this process. MaR 1 ameliorated I/R-induced
lung injury score, wet/dry weight ratio, myeloperoxidase, tumor necrosis factor,
bronchoalveolar lavage fluid (BALF) leukocyte count, BALF neutrophil ratio, and
pulmonary permeability index levels in lung tissue. MaR 1 significantly reduced
ROS, methane dicarboxylic aldehyde, and 15-F2t-isoprostane generation and
restored antioxidative enzyme (superoxide dismutase, glutathione peroxidase, and
catalase) activities. Administration of MaR 1 improved the expression of nuclear
Nrf-2 and cytosolic HO-1 in I/R-treated lung tissue. Furthermore, we also found
that the protective effects of MaR 1 on lung tissue injury and oxidative stress
were reversed by HO-1 activity inhibitor, Znpp-IX. Nrf-2 transcription factor
inhibitor, brusatol, significantly decreased MaR 1-induced nuclear Nrf-2 and
cytosolic HO-1 expression. In conclusion, these results indicate that MaR 1
protects against lung I/R injury through suppressing oxidative stress. The
mechanism is partially explained by activation of the Nrf-2-mediated HO-1
signaling pathway.
|Animals
[MESH]
|Docosahexaenoic Acids/*pharmacology
[MESH]
|Heme Oxygenase-1/*metabolism
[MESH]
|Lung Diseases/metabolism/pathology/*prevention & control
[MESH]
|Lung/*metabolism/pathology
[MESH]
|Male
[MESH]
|Membrane Proteins/*metabolism
[MESH]
|Mice
[MESH]
|Mice, Inbred BALB C
[MESH]
|NF-E2-Related Factor 2/*metabolism
[MESH]
|Oxidative Stress/*drug effects
[MESH]
|Reperfusion Injury/metabolism/pathology/*prevention & control
[MESH]