切换至 "中华医学电子期刊资源库"

中华口腔医学研究杂志(电子版) ›› 2013, Vol. 07 ›› Issue (05) : 347 -351. doi: 10.3877/cma.j.issn.1674-1366.2013.05.001

基础研究

Toll 样受体2 激动剂Pam3CSK4对人牙髓细胞表达细胞因子的影响
洪丽莉1, 杜宇1, 孔倩颖1, 韦曦1,()   
  1. 1. 510055 广州,中山大学光华口腔医学院·附属口腔医院,广东省口腔医学重点实验室
  • 收稿日期:2013-03-12 出版日期:2013-10-01
  • 通信作者: 韦曦
  • 基金资助:
    广东省科技计划国际合作项目(2011B050300007)广东省自然科学基金(S2012010008476)

Effect of Toll-like receptor 2 agonist Pam3CSK4 on the expression of several cytokines in human dental pulp cells

Li-li HONG1, Yu DU1, Qian-ying KONG1, Xi WEI1,()   

  1. 1. Guanghua School of Stomatology,Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology,Guangzhou 510055, China
  • Received:2013-03-12 Published:2013-10-01
  • Corresponding author: Xi WEI
引用本文:

洪丽莉, 杜宇, 孔倩颖, 韦曦. Toll 样受体2 激动剂Pam3CSK4对人牙髓细胞表达细胞因子的影响[J/OL]. 中华口腔医学研究杂志(电子版), 2013, 07(05): 347-351.

Li-li HONG, Yu DU, Qian-ying KONG, Xi WEI. Effect of Toll-like receptor 2 agonist Pam3CSK4 on the expression of several cytokines in human dental pulp cells[J/OL]. Chinese Journal of Stomatological Research(Electronic Edition), 2013, 07(05): 347-351.

目的

研究Toll 样受体2(TLR2)激动剂Pam3CSK4 对体外培养人牙髓细胞(hDPC)表达细胞因子的影响。

方法

特异性配体Pam3CSK4 体外活化hDPC 表面TLR2,实时荧光定量聚合酶链反应(PCR)检测不同时间处理后hDPC 内白细胞介素6(IL-6)、IL-8、IL-1β 及半胱氨酸-X-半胱氨酸趋化因子配体10(CXCL10) mRNA 的表达水平;双抗体夹心ELISA 法检测上述细胞上清液中IL-6、IL-8 蛋白的表达水平;激光共聚焦观察TLR2-核因子κB(NF-κB)信号通路关键蛋白p65 的胞内分布情况。

结果

1 μg/ml Pam3CSK4 处理hDPC 0、4、8、12 h,荧光定量PCR 结果显示,除IL-6 mRNA 表达水平最先于4 h 达峰值外(P=0.006),IL-8、IL-1β 及CXCL10 mRNA 表达水平均于4 h开始升高,8 h 达峰值(P<0.001);双抗体夹心ELISA 法显示,hDPC 上清液中IL-6 及IL-8 的蛋白表达于4 h 开始升高,8 ~12 h 趋于平稳。 激光共聚焦显微镜发现,表达绿色荧光的NF-κB p65 蛋白主要位于对照组细胞质,经1 μg/ml Pam3CSK4 刺激75 min 后转移至胞核。

结论

特异性配体Pam3CSK4 通过结合hDPC 表面TLR2 启动细胞内NF-κB 信号通路进而激活其转录作用,诱导hDPC表达多种细胞因子,从而参与牙髓炎的早期免疫调控。

Objective

This study was to investigate the effect of Toll-like receptor 2 agonist Pam3CSK4 on the expression of several cytokines in human dental pulp cells (hDPCs).

Methods

The mRNA expression of IL-6, IL-8, IL-1β and CXCL10, and the protein expression of IL-6, IL-8 in hDPCs with 1 μg/ml Pam3CSK4 at different time points were examined by real-time quantitative PCR and ELISA, respectively. Nuclear location of p65 was investigated by immunofluorescent staining in hDPCs.

Results

The mRNA expression of IL-6 firstly elevated at 4 h, whereas the expression of IL-8,IL-1β and CXCL10 peaked at 8 hours by the incubation with 1 μg/ml Pam3CSK4. IL-6 and IL-8 proteins were clearly expressed in hDPCs culture supernatant, which increased at 4 h and maintained stable at 8 h. Confocal laser scanning microscope showed the positive expression of p65 in nuclear with 1 μg/ml Pam3CSK4 for 75 min, whereas p65 was only observed in cytoplasm in untreated control group.

Conclusions

Activation of TLR2 by Pam3CSK4 induced the expression of several cytokines both at mRNA and protein levels at 4 ~8 h through promoting NF-κB activation in hDPCs, indicating they may be involved in immune regulation of early pulpitis.

表1 实时定量PCR 引物序列
图1 Pam3CSK4 作用不同时间对hDPC 中细胞因子表达水平的影响 注:与0 h 对照组比较差异有统计学意义(aP<0.05)
图2 Pam3CSK4 作用hDPC 不同时间上清液中IL-6 及IL-8的检测 注:与0 h 对照组比较,IL-6、IL-8 表达差异均有统计学意义(aP<0.05)
图3 Pam3CSK4 作用hDPC 不同时间p65 蛋白核转位情况(DAPI × 400) 注:白色箭头示细胞胞核内绿色荧光呈强阳性
1
Yamagishi VT,Torneck CD,Friedman S,et al. Blockade of TLR2 inhibits Porphyromonas gingivalis suppression of mineralized matrix formation by human dental pulp stem cells. J Endod,2011,37(6):812-818.
2
Farges JC, Carrouel F, Keller JF, et al. Cytokine production by human odontoblast-like cells upon Toll-like receptor-2 engagement. Immunobiology, 2011,216(4):513-517.
3
Staquet MJ, Durand SH, Colomb E, et al. Different roles of odontoblasts and fibroblasts in immunity. J Dent Res, 2008,87(3):256-261.
4
Keller JF, Carrouel F, Staquet MJ, et al. Expression of NOD2 is increased in inflamed human dental pulps and lipoteichoic acid-stimulated odontoblast-like cells. Innate Immun, 2011,17(1):29-34.
5
Mutoh N, Tani-Ishii N, Tsukinoki K, et al. Expression of tolllike receptor 2 and 4 in dental pulp. J Endod, 2007,33(10):1183-1186.
6
Farges JC, Keller JF, Carrouel F, et al. Odontoblasts in the dental pulp immune response. J Exp Zool B Mol Dev Evol,2009,312B(5):425-436.
7
Park C, Lee SY, Kim HJ, et al. Synergy of TLR2 and H1R on Cox-2 Activation in Pulpal Cells. J Dent Res, 2010,89(2):180-185.
8
Horst OV, Tompkins KA, Coats SR, et al. TGF-beta1 Inhibits TLR-mediated odontoblast responses to oral bacteria. J Dent Res, 2009,88(4):333-338.
9
Keller JF, Carrouel F, Colomb E, et al. Toll-like receptor 2 activation by lipoteichoic acid induces differential production of pro-inflammatory cytokines in human odontoblasts, dental pulp fibroblasts and immature dendritic cells. Immunobiology,2010,215(1):53-59.
10
Da SR, Ferreira PD, De Rossi A, et al. Toll-like receptor 2 knockout mice showed increased periapical lesion size and osteoclast number. J Endod, 2012,38(6):803-813.
11
Uehara A, Takada H. Functional TLRs and NODs in human gingival fibroblasts. J Dent Res, 2007,86(3):249-254.
12
Mutoh N, Watabe H, Chieda K, et al. Expression of Toll-like receptor 2 and 4 in inflamed pulp in severe combined immunodeficiency mice. J Endod, 2009,35(7):975-980.
13
Batista EJ Jr. Expression of Toll-like receptor 2 and 4 in inflamed pulp in severe combined immunodeficiency (SCID)mice. J Endod, 2010,36(4):595.
14
Echchannaoui H, Frei K, Schnell C, et al. Toll-like receptor 2-deficient mice are highly susceptible to Streptococcus pneumoniae meningitis because of reduced bacterial clearing and enhanced inflammation. J Infect Dis, 2002,186(6):798-806.
15
Hou L, Sasaki H, Stashenko P. Toll-like receptor 4-deficient mice have reduced bone destruction following mixed anaerobic infection. Infect Immun, 2000,68(8):4681-4687.
16
Akira S, Uematsu S, Takeuchi O. Pathogen recognition and innate immunity. Cell, 2006,124(4):783-801.
17
Henkel T, Machleidt T, Alkalay I, et al. Rapid proteolysis of I kappa B-alpha is necessary for activation of transcription factor NF-kappa B. Nature, 1993,365(6442):182-185.
18
Blackwell TS, Christman JW. The role of nuclear factor-kappa B in cytokine gene regulation. Am J Respir Cell Mol Biol,1997,17(1):3-9.
19
Davanian H, Bage T, Lindberg J, et al. Signaling pathways involved in the regulation of TNFα-induced toll-like receptor 2 expression in human gingival fibroblasts. Cytokine, 2012,57(3):406-416.
20
Kim JS, Kim KD, Na HS, et al. Tumor necrosis factor-α and interleukin-1β expression pathway induced by Streptococcus mutans in macrophage cell line RAW 264.7. Mol Oral Microbiol,2012,27(3):149-159.
21
陈铁楼,许兵,苏丹,等. 脂多糖对核转录因子κB 在人牙龈成纤维细胞中的激活作用及意义. 临床口腔医学杂志, 2010,26(4):217-219.
[1] 钱雅君, 虞竹溪, 徐颖, 董丹江, 顾勤. 危重型新型冠状病毒感染合并侵袭性肺曲霉病的临床特征和高危因素分析[J/OL]. 中华危重症医学杂志(电子版), 2024, 17(01): 3-9.
[2] 陈腊青, 林佳佳, 毛洪刚, 童冠海, 汪梦娜, 夏红波, 刘卓, 徐海霞, 赵玉华, 张传领. 血清细胞因子及呼出气一氧化氮在哮喘-慢性阻塞性肺疾病重叠综合征中的临床意义[J/OL]. 中华危重症医学杂志(电子版), 2023, 16(04): 316-320.
[3] 李永浩, 高雪菲, 郭田田, 张进, 张彩针, 刘静. 肥胖合并甲状腺癌相关机制的研究进展[J/OL]. 中华普通外科学文献(电子版), 2023, 17(04): 311-315.
[4] 张燕, 杨跃青, 邱峥. IgG 联合血清细胞因子对肺结核并发慢性肺曲霉菌病的诊断意义[J/OL]. 中华肺部疾病杂志(电子版), 2024, 17(05): 809-812.
[5] 蒋丽芳, 林冰. 桑菊清解汤联合左氧氟沙星治疗社区获得性肺炎的临床分析[J/OL]. 中华肺部疾病杂志(电子版), 2024, 17(03): 458-461.
[6] 傅红兴, 王植楷, 谢贵林, 蔡娟娟, 杨威, 严盛. 间充质干细胞促进胰岛移植效果的研究进展[J/OL]. 中华细胞与干细胞杂志(电子版), 2024, 14(06): 351-360.
[7] 徐嘉愉, 张复华, 牛国敏, 梁家宝, 潘焕玉, 麦秀蕖, 杨国雷, 徐嘉良, 黄佑勇. Th1/Th2细胞因子谱在恶性血液肿瘤患者化疗后中性粒细胞缺乏伴感染的应用价值[J/OL]. 中华细胞与干细胞杂志(电子版), 2024, 14(03): 143-150.
[8] 阿卜杜萨拉木·图尔荪麦麦提, 吐尔洪江·吐逊, 温浩. 肝脏缺血-再灌注损伤与cGAS-STING信号通路[J/OL]. 中华肝脏外科手术学电子杂志, 2024, 13(03): 394-397.
[9] 杨金涓, 夏建平. 糖尿病性黄斑水肿患者基线房水细胞因子水平评估血管内皮生长因子疗效的临床研究[J/OL]. 中华眼科医学杂志(电子版), 2023, 13(06): 350-355.
[10] 杨智钧, 谷佳, 丁聿贤, 张正奎, 于如同. 脑胶质瘤患者血清炎性因子水平与病理分级及预后的相关性[J/OL]. 中华神经创伤外科电子杂志, 2024, 10(04): 238-242.
[11] 丛黎, 马林, 陈旭, 李文文, 张亮亮, 周华亭. 改良CT严重指数联合炎症指标在重症急性胰腺炎患者胰腺感染预测及预后评估中的研究[J/OL]. 中华消化病与影像杂志(电子版), 2024, 14(05): 432-436.
[12] 王小红, 钱晶, 翁文俊, 周国雄, 朱顺星, 祁小鸣, 刘春, 王萍, 沈伟, 程睿智, 秦璟灏. 巯基丙酮酸硫基转移酶调控核因子κB信号介导自噬对重症急性胰腺炎大鼠的影响及机制[J/OL]. 中华消化病与影像杂志(电子版), 2023, 13(06): 422-426.
[13] 刘立业, 赵德芳. 非酒精性脂肪肝患者血清细胞因子信号转导抑制因子3、肝X受体α水平与CT影像学特征的相关性[J/OL]. 中华消化病与影像杂志(电子版), 2023, 13(04): 211-215.
[14] 李益军, 梁兴森, 方细霞, 肖文良, 李湘, 高彦平, 李嘉, 李玲. 温针灸治疗早中期寒湿痹阻型膝骨关节炎的疗效观察[J/OL]. 中华针灸电子杂志, 2024, 13(01): 7-12.
[15] 南朝涛, 陈建, 王书鸿, 李刚, 郝俊杰. 血清细胞因子预测急性脑梗死后肺炎的价值[J/OL]. 中华卫生应急电子杂志, 2024, 10(01): 16-20.
阅读次数
全文


摘要


AI


AI小编
你好!我是《中华医学电子期刊资源库》AI小编,有什么可以帮您的吗?