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中华口腔医学研究杂志(电子版) ›› 2009, Vol. 3 ›› Issue (03) : 250 -254. doi: 10.3877 / cma.j.issn.1674-1366.2009-03-003

基础研究

糖基化终产物对人牙龈成纤维细胞增殖和基质金属蛋白酶-1 合成的影响
邓雨泉1, 付云1,(), 齐刘英1, 唐志英1   
  1. 1.510055 广州,中山大学光华口腔医学院·附属口腔医院·口腔医学研究所
  • 收稿日期:2008-03-12 出版日期:2009-06-01
  • 通信作者: 付云

Effects of advanced glycation end products on the proliferation and MMP-1 synthesis of human gingival fibroblast

Yu-quan DENG1, Yun FU1,(), Liu-ying QI1, Zhi-ying TANG1   

  1. 1.Guanghua School of Stomatology, Institute of Stomatological Research, Sun Yat-sen University, Guangzhou 510055, China
  • Received:2008-03-12 Published:2009-06-01
  • Corresponding author: Yun FU
引用本文:

邓雨泉, 付云, 齐刘英, 唐志英. 糖基化终产物对人牙龈成纤维细胞增殖和基质金属蛋白酶-1 合成的影响[J/OL]. 中华口腔医学研究杂志(电子版), 2009, 3(03): 250-254.

Yu-quan DENG, Yun FU, Liu-ying QI, Zhi-ying TANG. Effects of advanced glycation end products on the proliferation and MMP-1 synthesis of human gingival fibroblast[J/OL]. Chinese Journal of Stomatological Research(Electronic Edition), 2009, 3(03): 250-254.

目的

探讨糖基化终产物(AGEs)对人牙龈成纤维细胞(HGF)增殖和基质金属蛋白酶-1 (MMP-1)合成的影响,以及AGEs 加重糖尿病性牙周炎的作用机制。

方法

采用酶消化-组织块培养法获得HGF,在培养基中加入体外合成的不同浓度AGEs,噻唑蓝(MTT)比色法检测在不同时间段下HGF 增殖水平的变化;ELISA 法测定HGF 合成MMP-1 的水平。

结果

各浓度组AGEs 对HGF有抑制作用,呈浓度依赖关系(P<0.05);共培养72 h 后,HGF 合成MMP-1 量明显增加(P<0.05),并且随着浓度的增加而增加。

结论

AGEs 能够抑制HGF的增殖;AGEs 可以促进MMP-1 合成,导致胶原降解,加速了糖尿病时牙周病进程。

Objective

To investigate the effects of advanced glycation end products(AGEs)on the proliferation and matrix matelloproteinase-1 (MMP-1) synthesis of human gingival fibroblast (HGF).

Methods

AGEs were isolated in vitro by means of both tissue explant cultivation and enzyme digestion methods. Different concentrations of AGEs were added into the culture media. At different time points, MTT colorimetric assay and ELISA were used to measure the changes of the proliferation rate and MMP-1 levels of HGF, respectively.

Results

AGEs inhibited HGF proliferation in a dose-dependent manner (P<0.05). Compared to the control group, MMP-1 synthesis was increased significantly in a dose-dependent manner (P<0.05).

Conclusions

The AGEs may inhibit the proliferation of HGF while promote MMP-1 synthesis,and the latter may increase collagen degradation. Thereby, AGEs may accelerate periodontal destruction process in diabetes.

图1 HGF 抗波形丝蛋白阳性(倒置显微镜×200)
图2 HGF 抗角蛋白染色阴性(倒置显微镜×200)
表1 不同浓度AGE-HSA 对HGF 增殖的抑制作用(抑制率%)(n=5,±s)
图3 不同时间内AGE-HSA 对HGF 增殖的抑制作用
表2 AGE-HSA 对HGF 的MMP-1 合成的影响(ng/ml)(n=4,±s)
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