机构地区:[1]南京中医药大学金陵临床医学院(东部战区总医院)耳鼻咽喉-头颈外科,南京210002 [2]南京医科大学附属江宁医院麻醉疼痛科,南京211100 [3]东南大学附属中大医院麻醉科,南京210009 [4]东部战区总医院耳鼻咽喉-头颈外科,南京210002
出 处:《医学研究与战创伤救治》2025年第3期238-244,共7页Journal of Medical Research & Combat Trauma Care
基 金:东部战区总医院院管课题(2023JCYJYB093,22LCZLXJS35)。
摘 要:目的探讨氢气(H_(2))对屋尘螨提取物(HDM)诱导的人鼻黏膜上皮细胞(HNEPC)氧化应激的保护作用并推测其可能的机制。方法体外培养HNEPC细胞随机分为4组:NC组(不做任何处理)、HDM组(10μg/m L HDM构建AR体外模型)、HDM+H_(2)组、H_(2)组。采用CCK8法检测细胞活力,Calcein/PI试剂盒法检测细胞活性与细胞毒性,ROS试剂盒法检测细胞氧化应激,RT-qPCR法检测细胞中TNF-α、IL-6、IL-1β的m RNA水平,免疫荧光法检测NLRP3在细胞中的表达水平。结果细胞活力检测结果显示,与NC组相比,HDM组的细胞活力显著降低(P<0.01),HDM+H_(2)组较HDM组细胞活力显著增加(P<0.01)。细胞活性与细胞毒性检测结果显示,与NC组相比,HDM组的红色荧光显著增加,标志细胞死亡率显著升高(P<0.05);HDM+H_(2)组与HDM组相比红色荧光显著减少,标志细胞死亡率显著降低(P<0.05)。ROS检测结果显示,与NC组相比,HDM组绿色荧光显著增加(P<0.01),HDM+H_(2)组与HDM组相比绿色荧光显著减弱(P<0.01)。RT-qPCR检测结果显示,与NC组相比,HDM组中IL-6、IL-1β以及TNF-α的m RNA含量显著增加(P<0.01),与HDM组相比,HDM+H_(2)组中IL-6、IL-1β以及TNF-α的m RNA含量显著降低(P<0.05)。免疫荧光检测结果显示,与NC组相比,HDM组NLRP3的表达明显增加(P<0.001);与HDM组相比,HDM+H_(2)组细胞中NLRP3的表达明显降低(P<0.01)。结论H_(2)可能通过抑制氧化应激,减少促炎因子释放来保护HDM诱导的HNEPC细胞损伤。Objective To investigate the protective effect of hydrogen(H_(2))on oxidative stress induced by house dust mite ex-tract(HDM)in human nasal mucosal epithelial cells(HNEPC)and to speculate on its possible mechanism.Methods HNEPC cells cultured in vitro were randomly divided into 4 groups:NC group(without any treatment),HDM group(10μg/mL HDM to construct AR model in vitro),HDM+H_(2)group,H_(2)group.CCK8 assay was used to detect cell viability,Calcein/PI assay was used to detect cell activity and cytotoxicity,ROS assay was used to detect cellular oxidative stress,RT-qPCR assay was used to detect mRNA levels of TNF-α,IL-6 and IL-1β,and immunofluorescence assay was used to detect the expression level of NLRP3 in cells.Results Compared with the NC group,the cell viability of HDM group was signifi-cantly decreased(P<0.01),and the cell viability of HDM+H_(2)group was significantly increased(P<0.01).The results of cell activi-ty and cytotoxicity detection showed that compared with NC group,the red fluorescence and mortality of marker cells in HDM group were significantly increased(P<0.05).The red fluorescence of HDM+H_(2)group and HDM group was significantly decreased,and the mortality of marker cells was significantly decreased(P<0.05).The ROS detection results showed that compared with the NC group,the green fluorescence of the HDM group was significantly increased(P<0.01),and the green fluorescence of the HDM+H_(2)group was significantly decreased compared with the HDM group(P<0.01).The results of RT-qPCR showed that compared with the NC group,the mRNA contents of IL-6,IL-1βand TNF-αin HDM group were significantly increased(P<0.01),and the mRNA contents of IL-6,IL-1βand TNF-αin HDM+H_(2)group were significantly decreased compared with the HDM group(P<0.05).The results of immu-nofluorescence detection showed that NLRP3 expression was significantly increased in HDM group compared with NC group(P<0.001).Compared with HDM group,the expression of NLRP3 in HDM+H_(2)group was significantly decreased(P<0.01).Conclusion
关 键 词:变应性鼻炎 人鼻黏膜上皮细胞 氢气 氧化应激 保护作用
分 类 号:R765.21[医药卫生—耳鼻咽喉科]
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