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浙江大学学报(医学版)  2014, Vol. 43 Issue (3): 287-292    DOI: 10.3785/j.issn.10089292.2014.05.004
专题报道     
白三烯D4在体外对A549肺泡上皮细胞增殖及迁移的影响
韩晓瑜1,2,章璐1,刘志娴1, 黄静1,张猛1,方三华1,张纬萍1,魏尔清1,卢韵碧1
1. 浙江大学医学院药理学系,杭州 310058
2. 浙江大学医学院附属儿童医院药剂科,杭州 310003
Effects of leukotriene D4 on proliferation and migration of lung epithelial A549 cells in vitro
HAN Xiao-yu 1,2, ZHANG Lu1, LIU Zhi-xian1, HUANG Jing1, ZHANG Meng1, FANG San-hua1, ZHANG Wei-ping1, WEI Er-qing1, LU Yun-bi1
1. Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou 310058, China; 2. Department of Pharmacy, the Childrens Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
全文: PDF(747 KB)  
摘要: 

目的:观察炎症介质白三烯D4(LTD4)对人肺泡上皮细胞株A549细胞增殖及迁移的影响。方法:以免疫荧光染色鉴定A549细胞上半胱氨酰白三烯(CysLT)受体的表达;以不同浓度(001~100 nmol/L)的CysLT受体激动剂LTD4处理A549细胞不同时间后,以MTT还原法检测细胞活性反映细胞增殖,以改良的划痕法观察细胞迁移的变化。结果:A549细胞表达CysLT1受体及CysLT2受体。001~100 nmol/L LTD4处理A549细胞24~72 h,细胞增殖无明显变化(均P>005);100 nmol/L LTD4处理A549细胞24、48、72 h后,细胞活性分别为不加LTD4处理的A549细胞的(103.00±446)%、(107.00±945)%、(105.00±902)%,差异均无统计学意义(均P>005)。虽然001~100 nmol/L LTD4处理的第1个24 h内A549细胞的修复速率远高于第2个及第3个24 h内的细胞修复速率,但同一时间段组间差异无统计学意义(均P>005)。100 nmol/L 的LTD4处理A549细胞24、48、72 h后,细胞迁移率分别为不加LTD4处理的A549细胞的115、121、106倍(均P>005),说明LTD4处理后细胞迁移亦无明显变化。结论:在体外给予001~100 nmol/L LTD4处理72 h,不影响A549细胞的增殖及迁移。

关键词 白三烯D4/药理学;受体白三烯;半胱氨酸;上皮细胞/药物作用;细胞增殖;细胞运动;细胞培养的/药物作用    
Abstract

Objective: To investigate the effects of cysteinyl leukotriene (CysLT) receptor agonist leukotriene D4 (LTD4) on proliferation and migration in lung epithelial A549 cells. Methods: The expression of CysLT1 receptor and CysLT2 receptor was determined by immunofluoresence staining in A549 cells. A549 cells were treated with LTD4 (001100 nmol/L) for 2472 h. Cell viability was detected by MTT reduction assay. Cell migration was determined by modified scratch and healing model. Results: In A549 cells, CysLT1 receptor and CysLT2 receptor were mainly expressed in the cytoplasm, membrane and few in the nuclei. The treatment of LTD4 (001100 nmol/L) for 2472 h caused no effect on cell viability (Ps>005); when A549 cells were treated with 100 nmol/L LTD4 for 24, 48 and 72 h the cell viability was (103.00±446)%,(107.00±945)% and (105.00±902)% of control, respectively (Ps>005). The migration rate of A549 cells after scratching during the first 24 h was markedly greater than that during the second and third 24 h in the same concentration groups; however, no significant difference in migration rate was noticed when the cells were treated with different concentrations of LTD4 (001100 nmol/L)(Ps>005). The migration of A549 cells was 115fold, 121fold and 106fold of that of control when the cells were treated with 100 nmol/L LTD4 for 24, 48 and 72 h, respectively (Ps>005). Conclusion: The proliferation and migration of A549 cells are not changed when treated with 001100 nmol LTD4 for up to 72h.

Key wordsLeukotriene D4/pharmacology    Receptors, leukotriene    Cysteine    Epithelial cells/drug effects    Cell proliferation    Cell movement    Cells, cultured/drug effects
收稿日期: 2014-01-12     
基金资助:

卫生部科学研究基金(wkj20092026)

通讯作者: 卢韵碧(1972-),女,博士,副教授,硕士生导师,从事神经药理及抗炎免疫药理研究;Email: yunbi@zju.edu    
Corresponding author: LU Yunbi, Email: yunbi@zju.edu.cn   
作者简介: 韩晓瑜 (1985-),女,硕士研究生,药师,从事药理学研究;Email: hanxiaoyu56@163.com
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引用本文:

韩晓瑜,章璐,刘志娴,等. 白三烯D4在体外对A549肺泡上皮细胞增殖及迁移的影响[J]. 浙江大学学报(医学版), 2014, 43(3): 287-292.
HAN Xiao-yu,ZHANG Lu,LIU Zhi-xian,HUANG Jing,ZHANG Meng,FANG San-hua,ZHANG Wei-ping,WEI Er-qing,LU Yun-bi . Effects of leukotriene D4 on proliferation and migration of lung epithelial A549 cells in vitro. Journal of ZheJiang University(Medical Science), 2014, 43(3): 287-292.

链接本文:

http://www.zjujournals.com/xueshu/med/CN/10.3785/j.issn.10089292.2014.05.004      或      http://www.zjujournals.com/xueshu/med/CN/Y2014/V43/I3/287

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