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首页> 外文期刊>International Journal Bioautomation >Change in Performance of BALB/c Mouse Pulmonary Macrophage Surface Receptor after Exercise and its Influence on Phagocytic Activity
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Change in Performance of BALB/c Mouse Pulmonary Macrophage Surface Receptor after Exercise and its Influence on Phagocytic Activity

机译:运动后BALB / c小鼠肺巨噬细胞表面受体性能的变化及其对吞噬活性的影响

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Objective: To study the effect of exercise on phagocytosis by pulmonary bronchoalveolar macrophages (BAMs). Methods: A total of 120 seven- to nine-week-old male BALB/c mice were randomly assigned into the following groups based on exercise intensity on a treadmill: control exercise (CE) group, acute moderate exercise (ME) group, and strenuous exercise group. Lung lavage was conducted to collect BAMs from the mice. Phagocytic behavior and surface receptor expression on BALB/c mouse BAMs were analyzed through fluorescence microscopy and flow cytometry. Results: In the SE group, expression levels of macrophage scavenger receptors (surface receptor [SR-A] type I/II and macrophage receptor [MARCO], complement receptor3 (CR3), and intercellular adhesion molecule 1 (ICAM-1) were upregulated; by contrast, expression level of extensive G-type immune globulin receptor (Fc Rs) was not upregulated. The promoting percentage of phagocytosis in the CE group was 100%; the highest promoting percentage of phagocytosis was 161% observed in MARCO, followed by 116% detected in CR3; the promoting percentage of phagocytosis found in SR-A type I/II and ICAM-1 increased by approximately 65%. Indeed, these scavenger receptors were involved in phagocytosis induced by macrophages. MARCO was also necessary to elicit a stimulatory effect on macrophage phagocytic activity. Conclusions: The phagocytosis of unopsonized particles was possibly mediated by MARCO expression.
机译:目的:研究运动对肺支气管肺泡巨噬细胞(BAM)吞噬作用的影响。方法:根据跑步机上的运动强度,将120只7至9周大的雄性BALB / c小鼠随机分为以下组:对照运动(CE)组,急性中度运动(ME)组和剧烈运动组。进行肺灌洗以从小鼠收集BAM。通过荧光显微镜和流式细胞仪分析了BALB / c小鼠BAM的吞噬行为和表面受体表达。结果:在SE组,巨噬细胞清除剂受体(I / II型表面受体[SR-A]和巨噬细胞受体[MARCO],补体受体3(CR3)和细胞间粘附分子1(ICAM-1)的表达水平上调。 ;相反,广泛的G型免疫球蛋白受体(Fc Rs)的表达水平没有上调; CE组吞噬作用的促进百分比为100%; MARCO中吞噬作用的最高促进百分比为161%,其次是在CR3中检测到116%;在SR-A I / II型和ICAM-1中发现的吞噬作用的促进百分比增加了约65%,实际上,这些清除剂受体参与了巨噬细胞诱导的吞噬作用。结论:未调理过的颗粒的吞噬作用可能是由MARCO的表达介导的。

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