[1]刘影影,高 霞,李海斌,等.新乡市冬季PM2.5组分分析及其对人 Ⅱ 型肺泡上皮细胞的炎性作用[J].新乡医学院学报,2018,35(2):101-105.[doi:10.7683/xxyxyxb.2018.02.005]
 LIU Ying-ying,GAO Xia,LI Hai-bin,et al.Analysis of PM2.5 components during winter in Xinxiang city and their inflammatory effects on human type Ⅱ alveolar epithelial cells[J].Journal of Xinxiang Medical University,2018,35(2):101-105.[doi:10.7683/xxyxyxb.2018.02.005]
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新乡市冬季PM2.5组分分析及其对人 Ⅱ 型肺泡上皮细胞的炎性作用
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《新乡医学院学报》[ISSN:1004-7239/CN:41-1186/R]

卷:
35
期数:
2018年2
页码:
101-105
栏目:
基础研究
出版日期:
2018-02-05

文章信息/Info

Title:
Analysis of PM2.5 components during winter in Xinxiang city and their inflammatory effects on human type Ⅱ alveolar epithelial cells
作者:
刘影影高 霞李海斌张光辉吴 辉张瑞芳吴卫东
(新乡医学院公共卫生学院 河南省空气污染健康效应与干预国际联合实验室,河南 新乡 453003)
Author(s):
LIU Ying-yingGAO XiaLI Hai-binZHANG Guang-huiWU HuiZHANG Rui-fangWU Wei-dong
(College of Public Health,Xinxiang Medical University,International Joint Laboratory on Health Effects and Intervention of Air Pollution,Xinxiang 453003,Henan Province,China)
关键词:
细颗粒物PM2.5人Ⅱ型肺泡上皮细胞细胞毒性白细胞介素-8白细胞介素-1β
Keywords:
fine particulate matterhuman type Ⅱ alveolar epithelial cellscytotoxicityinterleukin-8interleukin-1β
分类号:
R114
DOI:
10.7683/xxyxyxb.2018.02.005
文献标志码:
A
摘要:
目的 检测新乡市冬季PM2.5组分及其对人Ⅱ型肺泡上皮细胞的炎性作用。方法 用大流量空气采样器收集新乡市冬季大气中细颗粒物PM2.5。使用离子色谱仪和电感耦合等离子体质谱仪分别检测PM2.5中可溶性阴离子和金属元素的成分及质量浓度;用3-(4,5-二甲基噻唑-2)-2,5二苯基四氮唑溴盐法检测不同质量浓度PM2.5对人Ⅱ型肺泡上皮细胞株A549活性的影响;酶联免疫吸附试验法检测人Ⅱ型肺泡上皮细胞株A549中白细胞介素-1β(IL-1β)和白细胞介素-8(IL-8)蛋白水平。结果 新乡市冬季PM2.5中含有较多的NOx和SO42-;不同金属元素含量差别明显,其中Ca、Mg、Zn、Al含量较高。12.5、 25.0、50.0、100.0、200.0、400.0 mg·L-1 PM2.5组人Ⅱ型肺泡上皮细胞株A549生长抑制率均高于0.0 mg·L-1 PM2.5组(P<0.05);200.0、400.0 mg·L-1 PM2.5组人Ⅱ型肺泡上皮细胞株A549生长抑制率均显著高于12.5、 25.0、50.0、100.0 mg·L-1 PM2.5组(P<0.05);12.5、 25.0、50.0、100.0 mg·L-1 PM2.5组人Ⅱ型肺泡上皮细胞株A549生长抑制率两两比较差异均无统计学意义(P>0.05);200.0 mg·L-1 PM2.5组人Ⅱ型肺泡上皮细胞株A549生长抑制率与400.0 mg·L-1 PM2.5组比较差异无统计学意义(P>0.05)。与0.0 mg·L-1 PM2.5组比较,25.0、 50.0、100.0 mg·L-1 PM2.5组人Ⅱ型肺泡上皮细胞培养液上清液中IL-1β和IL-8蛋白表达均显著升高(P<0.05)。25.0、50.0、100.0 mg·L-1 PM2.5组人Ⅱ型肺泡上皮细胞培养液上清液中IL-1β和 IL-8 蛋白表达两两比较差异均无统计学意义(P>0.05)。结论 新乡市冬季大气中PM2.5组分可能主要来源于建筑降尘及移动污染源,且PM2.5暴露可引起人Ⅱ型肺泡上皮细胞损伤和细胞炎性反应。
Abstract:
Objective To analyze the PM2.5 components collected during winter in Xinxiang city and their inflammatory effects on human type Ⅱ alveolar epithelial cells.Methods Fine particulate matter (PM2.5) was collected during winter in Xinxiang using a high-volume air sampler.The composition and mass concentration of soluble anions and metal elements in PM2.5 were determined with ion chromatography and inductive coupled plasma emission spectrometer,respectively.3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide assay was used to examine the effect of PM2.5 on viability of human type Ⅱ alveolar epithelial cell line A549;enzyme-linked immunosorbent assay was used to examine the expression of interleukin-1β(IL-1β) and interleukin-8(IL-8) in A549 cells.Results Airborne PM2.5 contained higher levels of NOx and SO42- during winter in Xinxiang city.The amount of PM2.5-derived metal elements in PM2.5 varied significantly,with higher levels of Ca,Mg,Zn and Al.The inhibition ratio of 12.5,25.0,50.0,100.0,200.0,400.0 mg·L-1 PM2.5 group on A549 of human type Ⅱ alveolar epithelial cell was higher than that of 0.0 mg·L-1 PM2.5 group(P<0.05). The inhibition ratio of 200.0,400.0 mg·L-1 PM2.5 group on A549 of human type Ⅱ alveolar epithelial cell was higher than that of 12.5,25.0,50.0,100.0 mg·L-1 PM2.5 group(P<0.05).There was no significant difference in the inhibition ratio in the 12.5,25.0,50.0,100.0 mg·L-1 PM2.5 group(P>0.05),and there was no significant difference in the inhibition ratio between 200.0 mg·L-1 PM2.5 group and 400.0 mg·L-1 PM2.5 group(P>0.05).Compared with 0.0 mg·L-1 PM2.5 group,the IL-1β and IL-8 protein expression of the human type Ⅱ alveolar epithelial cells culture supernatants in the 25.0,50.0,100.0 mg·L-1 PM2.5 group was higher(P<0.05).But there was no significant difference in the IL-1β and IL-8 protein expression of human type Ⅱ alveolar epithelial cell culture supernatants among 25.0,50.0,100.0 mg·L-1 PM2.5 group (P>0.05).Conclusion Analysis of source apportionment suggests that construction and automobiles are main sources of ambient PM2.5 air pollution.Moreover,exposure to PM2.5 can cause damage and pro-inflammatory response of human type Ⅱ alveolar epithelial cells.

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更新日期/Last Update: 2018-02-05