INTERLEUKIN-8 AND MONOCYTE CHEMOATTRACTANT PROTEIN-1 MESSENGER-RNAS IN OXYGEN-INJURED RABBIT LUNG

被引：23
|
作者：
DANGIO, CT
SINKIN, RA
LOMONACO, MB
FINKELSTEIN, JN
机构：
来源：
AMERICAN JOURNAL OF PHYSIOLOGY-LUNG CELLULAR AND MOLECULAR PHYSIOLOGY | 1995年 / 268卷 / 05期
关键词：
ALVEOLAR MACROPHAGE; NEUTROPHIL; CHEMOKINE; INTERCRINE; NEUTROPHIL ATTRACTANT ACTIVATION PROTEIN-1; OXYGEN TOXICITY;
D O I：
10.1152/ajplung.1995.268.5.L826
中图分类号：
Q4 [生理学];
学科分类号：
071003 ;
摘要：
The chemokines interleukin-8 (IL-8) and monocyte chemoattractant protein-1 (MCP-1) are neutrophil and monocyte attractants, respectively. We hypothesized that IL-8 and MCP-1 mRNA expression in alveolar macrophages (AM) lavaged from rabbit lung would be increased by oxygen exposure, which is known to induce inflammation. Adult rabbits were exposed to >95% oxygen for up to 64 h and allowed to recover in room air for up to 72 h before killing and pulmonary lavage. Numbers of lavageable polymorphonuclear cells (PMN) and AM rose during the exposure protocol. Quantitative in situ hybridization with H-3-labeled cRNA probes showed both IL-8 and MCP-1 mRNA expression in AM during oxygen exposure, with peak levels of IL-8 mRNA at 56-h oxygen exposure and of MCP-1 mRNA at 64-h oxygen exposure with 24-h room air recovery. IL-8 mRNA was present in PMN between 48-h oxygen exposure and 64-h oxygen exposure with 24-h room air recovery. MCP-1 mRNA was not expressed in PMN. This pattern of chemokine mRNA expression emphasizes the importance of inflammatory cells as effecters in the pulmonary response to oxygen exposure.
引用
收藏
页码：L826 / L831
页数：6
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