吉林大学学报(医学版) ›› 2019, Vol. 45 ›› Issue (04): 796-800.doi: 10.13481/j.1671-587x.20190409

• 基础研究 • 上一篇    

三七总皂苷通过上调VEGF表达对大鼠拔牙创愈合的促进作用

庞宇轩1, 杨柳2, 张志鹰3, 李江1   

  1. 1. 吉林大学口腔医院口腔修复科, 吉林 长春 130021;
    2. 吉林大学口腔医院(牙合)学与颞下颌关节病科, 吉林 长春 130021;
    3. 吉林大学口腔医院预防保健科, 吉林 长春 130021
  • 收稿日期:2018-09-12 发布日期:2019-08-02
  • 通讯作者: 李江,教授,主任医师,硕士研究生导师(Tel:0431-88796018,E-mail:ljiang@jlu.edu.cn) E-mail:ljiang@jlu.edu.cn
  • 作者简介:庞宇轩(1990-),男,吉林省长春市人,主治医师,医学硕士,主要从事口腔修复学方面的研究。
  • 基金资助:
    吉林省科技厅科技发展计划项目资助课题(20170204009YY);吉林省长春市科技局科技计划项目资助课题(17YJ001);吉林省发改委和财政厅省级产业创新专项资金项目资助课题(2016C048-3)

Promotion effect of panax notoginseng saponins on healing of rat tooth extraction wounds by up-regulation of VEGFexpression

PANG Yuxuan1, YANG Liu2, ZHANG Zhiying3, LI Jiang1   

  1. 1. Department of Prosthodontics, Stomatology Hospital, Jilin University, Changchun 130021, China;
    2. Department of Occlusion and Temporomandibular Arthrosis, Stomatology Hospital, Jilin University, Changchun 130021, China;
    3. Department of Prevention, Stomatology Hospital, Jilin University, Changchun 130021, China
  • Received:2018-09-12 Published:2019-08-02

摘要: 目的:探讨拔牙创愈合过程中血管内皮生长因子(VEGF)的表达,并阐明三七总皂苷(PNS)促进拔牙创愈合的作用及其机制。方法:45只SD雄性大鼠随机分为对照组(不给药)、壳聚糖凝胶组(给予壳聚糖凝胶)、0.5 g·L-1 PNS组(给予含0.5 g·L-1 PNS的壳聚糖凝胶)、1.0 g·L-1 PNS组(给予含1.0g·L-1PNS的壳聚糖凝胶)和1.5 g·L-1 PNS组(给予含1.5 g·L-1 PNS的壳聚糖凝胶),每组9只。拔除右下颌中切牙后,除对照组外各组大鼠每个拔牙创注入约20μL含有不同浓度PNS的壳聚糖凝胶,给药后1、2和4周,分别处死3只大鼠并制备术区标本。HE染色后显微镜下观察各组大鼠拔牙创给药后1、2和4周愈合情况。免疫组织化学染色检测各组大鼠给药后1、2和4周拔牙创组织中VEGF阳性细胞数和蛋白表达水平。结果:HE染色,给药后1、2和4周,壳聚糖凝胶组大鼠拔牙创愈合情况与对照组相似;与对照组比较,0.5、1.0和1.5 g·L-1 PNS组大鼠拔牙创组织中成骨细胞和血管内皮细胞大量分化迁移,骨小梁数目增多。给药后1、2和4周,与对照组比较,壳聚糖凝胶组大鼠拔牙创组织中VEGF阳性细胞数和蛋白表达水平差异无统计学意义(P>0.05),0.5、1.0和1.5 g·L-1 PNS组大鼠拔牙创组织中VEGF阳性细胞数和蛋白表达水平明显升高(P<0.05)。结论:PNS通过上调大鼠拔牙创血管内皮细胞和成骨细胞中VEGF表达,诱导血管内皮细胞和成骨细胞分化,使其迁移和聚集数量增多,达到促进大鼠拔牙创愈合的作用。

关键词: 三七总皂苷, 壳聚糖, 骨形成, 血管内皮生长因子

Abstract: Objective:To investigate the expression of vascular endothelial growth factor (VEGF) during the healing process of tooth extraction, and to clarify the effect of panax notoginseng saponins(PNS) in promoting the healing of extraction and its mechanism. Methods:Forty-five SD male rats were randomly divided into control group(not given any drugs),chitosan thermosensitive gels group(given chitosan thermosensitive gels without panax notoginseng saponins), 0.5 g·L-1 PNS group(given chitosan thermosensitive gels and 0.5 g·L-1 PNS),1.0 g·L-1 PNS group (given chitosan thermosensitive gels and 1.0 g·L-1 PNS),and 1.5 g·L-1 PNS group(given chitosan thermosensitive gels and 1.5 g·L-1 PNS), with 9 rats in each group.After the middle incisors of right lower jaw were removed, about 20 μL of chitosan thermosensitive gels containing different concentrations of PNS was injected into the each tooth extraction wound of the rats in other groups,except control group. The rats were sacrificed at 1, 2, and 4 weeks after administration, and the specimens were prepared.HE staining was used to observe the healing status of tooth extraction wounds at 1, 2, and 4 weeks after administration.Immunohistochemical staining was performed to detect the number of VEGF positive cells and the expression levels of VEGF protein at 1,2, and 4 weeks after administration. Results:The HE staining resuls showed that the healing status of tooth extraction wounds in chitosan thermosensitive gels group was similar to that in control group;compared with control group, the osteoblasts and vascular endothelial cells were highly differentiated and migrated and the number of bone trabecula was increased. Compared with control group, at 1,2, and 4 weeks after administration, there were no significant differences in the number of VEGF positive cells and the protein expression level of VEGF in the tooth extraction wound tissue of the rats in chitosan gel group (P>0.05); the number of VEGF positive cells and the protein expression level of VEGF of the rats in 0.5,1.0,and 1.5 g·L-1 PNS groups were significantly increased (P<0.05). Conclusion:PNS can up-regulate the expressions of VEGF in vascular endothelial cells and osteoblasts in tooth extraction wounds of the rats, induce the differentiation of vascular endothelial cells and osteoblasts, increase the number of migration and aggregation of cells, and achieve the effect of promoting the tooth extraction wound healing.

Key words: panax notoginseng saponins, chitosan, bone formation, vascular endothelial growth factor

中图分类号: 

  • R285.5