›› 2016, Vol. 36 ›› Issue (2): 120-123.

• 基础研究 • 上一篇    下一篇

细菌脂多糖诱导人牙龈上皮细胞β防御素-4表达的实验研究

高杰   

  1. 天津市口腔医院
  • 收稿日期:2014-10-20 修回日期:2015-02-03 出版日期:2016-02-28 发布日期:2016-02-29
  • 通讯作者: 高杰 E-mail:gaojietianjin@126.com

The research on the expression of β-defensin 4 in primary human gingival epithelial cells after BLPS inducement

  • Received:2014-10-20 Revised:2015-02-03 Online:2016-02-28 Published:2016-02-29

摘要: [摘要] 目的 观察不同浓度细菌脂多糖(BLPS)作用下原代培养的人牙龈上皮细胞(HGECs) β防御素-4(BD-4)的表达。方法 体外原代培养HGECs,经免疫细胞化学鉴定,加入10、20、40、80、160 μg/mL的BLPS,采用免疫组织化学和Western blotting检测BD-4蛋白在HGECs中的定位和表达变化。结果 HGECs组织块法原代细胞生长状态好,第3代细胞进行鉴定,Ck(AE1/AE3)(+)/Vimentin(-)。HGECs免疫细胞化学染色结果显示,HGECs胞浆可见棕黄色颗粒状着色,阳性染色弥漫分布于胞浆,随着BLPS浓度的增加表达更为强烈。Western Blotting结果显示,BD-4表达水平随BLPS浓度增加而增高。BD-4蛋白在BLPS浓度为160 μg/mL表达的值最高,组间比较差异有统计学意义(P<0.01)。结论 随着BLPS对牙龈上皮炎症刺激加重,BD-4表达增强,提示了BD-4在牙周炎症进程中的作用。

关键词: 吲哚美辛, 细菌脂多糖, 人牙周膜细胞

Abstract: Objective Study the expression of β-defensin 4 in original human gingival epithelial cells after BLPS stimulating. Methods In vitro original culture human gingival epithelial cells, HGECs were identified by immunocytochemistry. Subjected to the concentration of BLPS are 10、20、40、80、160ug/ml in HGECs. Test the expression of BD-4 in HGECs by immunocytochemistry and western blotting. Results HGECs grew well. The third generation cells were identified Ck (AE1/AE3) (+)/Vimentin (-). The positive staining granular brown was distributed in cytoplasm, increasing of BLPS concentration expression is more intense by immunocytochemistry. The expression of BD-4 increased with the higher concentration of BLPS by western blotting. The top value of BD-4 protein present in the concentration of BLPS 160ug/ml. There are significant different among the HGECs groups of BLPS stimulated (p< 0.01). Conclusion With the inflammation stimulated increase in human gingival epithelial cells, the expression of BD-4 increased. Prompt the function of BD-4 progress in periodontal disease.

Key words: Indomethacin, BLPS, PDLCs

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