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内毒素对气管上皮细胞损伤的实验研究 被引量:2

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摘要 目的观察不同浓度内毒素(LPS)作用不同时程对气管上皮细胞(HBE)的损伤作用。方法取处于对数生长期的HBE,加入LPS的终浓度分别为0.02μg/ml、0.04μg/ml、0.06μg/ml、0.08μg/ml、0.1μg/ml、0.2μg/ml、0.4μg/ml、0.6μg/ml、0.8μg/ml、1.0μg/ml,在培养箱内分别孵育24h、48h后,采用MTT比色法于酶联免疫测定仪490nm波长处测定OD值。结果作用24h后,各浓度LPS对HBE具有不同程度的损伤作用,其中以0.1μg/ml作用最为明显(0.4080±0.0217vs0.3800±0.0100,P<0.01);作用48h后,各浓度LPS对HBE具有不同程度的损伤作用,其中以0.1μg/ml作用最为明显(0.3900±0.0122vs0.3060±0.0230,P<0.01)。结论根据LPS致气管上皮细胞损伤的量效及时效关系,选择0.1μg/ml作用24h作为细胞刺激条件较为适宜。
出处 《临床肺科杂志》 2009年第2期226-226,228,共2页 Journal of Clinical Pulmonary Medicine
基金 "十一五"国家科技支撑计划项目(2006BAI06A02-01)
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