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Antimacrophage chemokine treatment prevents neutrophil and macrophage influx in hyperoxia-exposed newborn rat lung

机译:抗巨噬细胞趋化因子治疗可防止高氧暴露新生大鼠肺中的中性粒细胞和巨噬细胞流入

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摘要

Macrophage-derived cytokines may provoke the inflammatory response in lung injury. Because macrophage influx is a prominent feature of the cellular inflammatory response accompanying the development of bronchopulmonary dysplasia, we hypothesized that blocking macrophage influx would reduce overall cellular influx and oxidative damage. Newborn rats were exposed at birth to 95% O_2 or air for 1 wk, and hyperoxia-exposed pups were injected with anti-monocyte chemoattractant protein-1 (MCP-1) or IgG control on days 3-5. MCP-1 was increased in bronchoalveolar lavage fluid and in histological sections from the 95% O_2-exposed, IgG-injected pups compared with air-exposed controls.
机译:巨噬细胞源性细胞因子可能在肺损伤中引起炎症反应。由于巨噬细胞流入是伴随支气管肺发育不良发展的细胞炎症反应的突出特征,因此我们假设阻断巨噬细胞流入将减少总体细胞流入和氧化损伤。新生大鼠在出生时暴露于95%O_2或空气中1周,并在3-5天向高氧暴露的幼崽注射抗单核细胞趋化蛋白1(MCP-1)或IgG对照。与暴露于空气的对照组相比,暴露于95%的O_2的,注射IgG的幼犬的支气管肺泡灌洗液和组织学切片中的MCP-1含量增加。

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