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) ›› 2014, Vol. 8 ›› Issue (06) : 441 -446. doi: 10.3877/cma.j.issn.1674-1366.2014.06.001

基础研究

碱性成纤维细胞因子在人牙髓损伤修复过程中的表达
陈丽红1, 陈丽虹1, 蔡艳玲1, 舒珊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:2014-08-06 出版日期:2014-12-01
  • 通信作者: 韦曦
  • 基金资助:
    国家自然科学基金(81371133)广东省自然科学基金(S2012010008476)广东省科技计划(2011B050300007)

Expression of basic fibroblast growth factor in the progress of repairing pulp injury

Lihong Chen1, Lihong Chen1, Yanling Cai1, Shan Shu1, 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:2014-08-06 Published:2014-12-01
  • Corresponding author: Xi Wei
引用本文:

陈丽红, 陈丽虹, 蔡艳玲, 舒珊, 韦曦. 碱性成纤维细胞因子在人牙髓损伤修复过程中的表达[J/OL]. 中华口腔医学研究杂志(电子版), 2014, 8(06): 441-446.

Lihong Chen, Lihong Chen, Yanling Cai, Shan Shu, Xi Wei. Expression of basic fibroblast growth factor in the progress of repairing pulp injury[J/OL]. Chinese Journal of Stomatological Research(Electronic Edition), 2014, 8(06): 441-446.

目的

研究不同状态人牙髓组织中碱性成纤维细胞因子(bFGF)的表达特点,以及大肠杆菌脂多糖(LPS)刺激后人牙髓细胞(hDPC)中bFGF 的表达水平,探讨bFGF 在牙髓损伤修复过程中的可能作用。

方法

采用实时荧光定量聚合酶链反应(PCR)和免疫蛋白印迹方法(Western blot)分别检测正常、深龋及牙髓炎牙髓组织中bFGF mRNA 和蛋白表达情况。 实时荧光定量PCR 测定1 mg/L LPS 刺激hDPC 6、12、24、48 h 后bFGF 和热休克蛋白70(HSP70)表达水平的变化;Western blot 和细胞免疫荧光染色检测LPS 刺激hDPC 后bFGF 蛋白表达变化。

结果

实时荧光定量PCR 和Western blot 结果表明,深龋牙髓组织中bFGF 水平显著上调,而正常和牙髓炎牙髓组织中bFGF 表达无差异。 实时荧光定量PCR 检测到LPS 刺激hDPC 后,bFGF 和HSP70 mRNA 水平同步上调,在12 h 达峰值;Western blot 显示,LPS 刺激hDPCs 12、24、48 h 后bFGF 蛋白表达水平均高于正常hDPC;细胞免疫荧光染色证实,LPS 刺激12 h 后hDPC 中bFGF 呈强阳性表达,而正常hDPC中bFGF呈弱阳性表达。

结论

bFGF 在深龋牙髓组织中高表达,且LPS 刺激早期可上调hDPC 内bFGF 表达,推测bFGF 可能参与牙髓组织防御修复反应,可能是细胞抗损伤的重要调节机制之一。

Objective

To investigate the expression of basic fibroblast growth factor (bFGF) in human dental pulp tissues of different state and the bFGF level in human dental pulp cells (hDPCs)stimulated by lipopolysaccharide (LPS), and explore the potential role of bFGF in the progress of repairing pulp injury.

Methods

The messenger RNA and protein level of bFGF in normal and inflammatory pulp were detected by fluorescence quantitative-polymerase chain reaction (qPCR) and western blot. HDPCs were collected after stimulated by 1 mg/L LPS for 6, 12, 24 and 48 h. The expression of bFGF and HSP70 in hDPCs was evaluated by qPCR. In addition, the protein level of bFGF in in normal and LPS treated hDPCs were detected by western blot and immunofluorescence staining.

Results

The mRNA and protein level of bFGF was significantly up-regulated in the pulp with deep caries compared with healthy pulps, while inflamed dental pulp did not show significant difference.QPCR showed that bFGF and HSP70 mRNA were concomitantly increased from 0 h to 12 h after stimulated by LPS. Similarly, it was shown that bFGF was increased in LPS treated hDPCs compared with normal hDPCs by western blot. Moreover, immunofluorescence staining results demonstrated that bFGF was strongly positive stained in LPS treated hDPCs, while it was weakly expressed in normal hDPCs.

Conclusion

BFGF is up-regulated in pulp with deep caries and hDPCs induced by LPS,indicating that bFGF may participates in the progress of repairing pulp injury.

表1 RT-PCR 引物序列
图1 不同牙髓组织bFGF mRNA 的表达差异 注:与正常牙髓组织比较,aP <0.05
图2 不同牙髓组织bFGF 蛋白的表达差异 注:与正常牙髓组织比较,aP <0.05
图3 1 mg/L LPS 刺激hDPC 后bFGF 表达变化 注:与0 h 对照组比较,aP <0.05
图4 1 mg/L LPS 刺激hDPC 后HSP70 表达变化 注:与0 h 对照组比较,aP <0.05
图5 1 mg/L LPS 刺激hDPC 后bFGF 蛋白的表达变化 注:与0 h 对照组比较,aP <0.05
图6 正常及LPS 刺激hDPC 中bFGF 免疫荧光表达(× 400) 注:细胞免疫荧光染色示正常hDPC 中bFGF 在胞浆呈弱阳性表达(图6A 为DAPI 染核;图6C 为免疫荧光染色;图6E 为图6A和图6C 融合的图片);而经1 mg/L LPS 刺激12 h 后hDPC 中bFGF 呈强阳性表达(图6B 为DAPI 染核;图6D 为免疫荧光染色;图6F 为图6B 和图6D 融合的图片)
[1]
Teti G,Salvatore V,Ruggeri A, et al. In vitro reparative dentin:a biochemical and morphological study [J]. Eur J Histochem,2013,57(3):e23.
[2]
Staquet MJ, Durand SH, Colomb E, et al. Different roles of odontoblasts and fibroblasts in immunity[J]. J Dent Res, 2008,87(3):256-261.
[3]
Mizia-Malarz A,Sobol G,Wo H. Proangiogenic factors:vascularendothelial growth factor (VEGF) and basic fibroblast growth factor-the characteristics and function [J]. Przegl Lek, 2008,65(7-8):353-357.
[4]
Haley EM, Kim Y. The role of basic fibroblast growth factor in glioblastoma multiforme and glioblastoma stem cells and in their in vitro culture [J]. Cancer Lett, 2014,346(1):1-5.
[5]
Sonmez AB, Castelnuovo J. Applications of basic fibroblastic growth factor (FGF-2, bFGF) in dentistry[J]. Dent Traumatol,2014,30(2):107-111.
[6]
Gronthos S, Brahim J, Li W, et al. Stem cell properties of human dental pulp stem cells [J]. J Dent Res, 2002,81(8):531-535.
[7]
Ricucci D, Loghin S, Lin LM, et al. Is hard tissue formation in the dental pulp after the death of the primary odontoblasts a regenerative or a reparative process?[J]. J Dent, 2014,42(9):1156-1170.
[8]
陈旭,刘淑杰,王兆元. 恒牙牙根发育过程中牙髓中碱性成纤维细胞生长因子的表达 [J]. 华西口腔医学杂志, 2004,22(4):271-274.
[9]
陈旭,王兆元,刘淑杰. 碱性成纤维细胞生长因子在年轻恒牙牙髓中的表达[J]. 上海口腔医学, 2003,12(1):41-43.
[10]
Akita S, Akino K, Hirano A. Basic fibroblast growth factor in scarless wound healing [J]. Adv Wound Care (New Rochelle),2013,2(2):44-49.
[11]
Tran-Hung L, Laurent P, Camps J, et al. Quantification of angiogenic growth factors released by human dental cells after injury[J]. Arch Oral Biol, 2008,53(1):9-13.
[12]
Qian J, Jiayuan W, Wenkai J, et al. Basic fibroblastic growth factor affects the osteogenic differentiation of dental pulp stem cells in a treatment-dependent manner [J]. Int Endod J, 2014 Aug 12.
[13]
Chen H, Wu Y, Zhang Y, et al. Hsp70 inhibits lipopolysaccharide-induced NF-kappaB activation by interacting with TRAF6 and inhibiting its ubiquitination[J]. FEBS Lett, 2006,580(13):3145-3152.
[14]
Liu Y, Gao Y, Zhan X, et al. TLR4 activation by lipopolysaccharide and streptococcus mutans induces differential regulation of proliferation and migration in human dental pulp stem cells[J]. J Endod, 2014,40(9):1375-1381.
[15]
Teplyuk NM, Haupt LM, Ling L, et al. The osteogenic transcription factor Runx2 regulates components of the fibroblast growth factor/proteoglycan signaling axis in osteoblasts [J]. J Cell Biochem, 2009,107(1):144-154.
[16]
Aranha AM, Zhang Z, Neiva KG, et al. Hypoxia enhances the angiogenic potential of human dental pulp cells [J]. J Endod,2010,36(10):1633-1637.
[1] 邓健, 王少华, 陈尊, 邹振庄. Keap1/Nrf2信号通路在脂多糖诱导宫内感染致新生鼠支气管肺发育不良的作用机制[J/OL]. 中华妇幼临床医学杂志(电子版), 2023, 19(06): 665-674.
[2] 贺林凤, 曹雨, 张宁, 冉新泽, 王锋超. 肠干细胞调控与肠道放射损伤修复的研究进展[J/OL]. 中华损伤与修复杂志(电子版), 2023, 18(04): 358-363.
[3] 徐燕群, 李平, 杨兴, 薛慧. 脂多糖通过促进透明质酸受体CD44向核转移介导牙周膜细胞白细胞介素6释放[J/OL]. 中华口腔医学研究杂志(电子版), 2023, 17(05): 335-344.
[4] 李玉娟, 艾芳, 熊欢庆, 陈键, 刘刚, 李志超, 金发光. "丹蛇"组方对小鼠急性肺损伤的治疗作用[J/OL]. 中华肺部疾病杂志(电子版), 2024, 17(02): 171-177.
[5] 吴天秀, 徐瑜, 廖秀清, 姚伟, 王关嵩, 杨昱, 王斌, 郭亮, 张明周, 吴国明, 罗莉, 白莉, 王彦, 胡明冬, 徐智. 驱动基因阴性Ⅲ/Ⅳ期非小细胞肺癌BRCA1/2基因突变与含铂化疗疗效的关系[J/OL]. 中华肺部疾病杂志(电子版), 2023, 16(05): 615-623.
[6] 李埝, 赵建军, 张建勇, 赵睿桢. hAMSCs调控MAPK信号通路对急性肺损伤AQP1的影响[J/OL]. 中华肺部疾病杂志(电子版), 2023, 16(02): 156-163.
[7] 曹守青, 来东, 焦启龙, 安哲昆, 李修彬. 免疫细胞在肾脏缺血再灌注损伤修复中的作用研究进展[J/OL]. 中华细胞与干细胞杂志(电子版), 2024, 14(01): 45-50.
[8] 乔梁, 杨向群. 脂肪干细胞在心肌损伤修复中的研究进展[J/OL]. 中华细胞与干细胞杂志(电子版), 2022, 12(04): 230-236.
[9] 李婧娴, 韩兴龙, 涂元媛, 胡士军, 于淼, 雷伟. 内皮祖细胞在血管损伤修复中的研究进展[J/OL]. 中华细胞与干细胞杂志(电子版), 2022, 12(03): 176-180.
[10] 张紫薇, 卢弘. 脂多糖受体复合体在急性前葡萄膜炎虹膜色素上皮细胞中作用的研究进展[J/OL]. 中华眼科医学杂志(电子版), 2023, 13(03): 167-171.
[11] 刘卓, 段虎斌. 生物电相关疗法在神经损伤修复中的应用进展[J/OL]. 中华神经创伤外科电子杂志, 2023, 09(05): 257-260.
[12] 程俊凯, 罗耀文, 李娟, 张磊, 杨淑涵, 王彦刚. 重复经颅磁刺激上调DJ-1表达改善小鼠创伤性脑损伤后功能障碍的研究[J/OL]. 中华神经创伤外科电子杂志, 2022, 08(05): 261-268.
[13] 张大涯, 陈世锔, 陈润祥, 张晓冬, 李达, 白飞虎. 肠道微生物群对代谢相关脂肪性肝病发展的影响[J/OL]. 中华临床医师杂志(电子版), 2023, 17(07): 828-833.
[14] 苏程程, 马永强, 郎胜坤, 刘斌, 魏路清, 姬文婕. 盐皮质受体对脂多糖诱导的巨噬细胞NOD样受体热蛋白结构域相关蛋白3炎症复合体激活的作用及其机制[J/OL]. 中华临床医师杂志(电子版), 2022, 16(05): 447-451.
[15] 李正达, 张艳兵, 刘茂霞, 李玉芳, 杨新静. 艾司洛尔对脓毒症肠损伤的保护作用及对自噬蛋白AMPK表达水平的影响[J/OL]. 中华卫生应急电子杂志, 2023, 09(02): 90-95.
阅读次数
全文


摘要