中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (21): 3342-3348.doi: 10.3969/j.issn.2095-4344.1768

• 干细胞培养与分化 stem cell culture and differentiation • 上一篇    下一篇

浓缩生长因子对人牙龈成纤维细胞增殖与分化的作用

李小菊1,宋光保2,杨剑珍3,魏 波1,武 斌1   

  1. 1深圳市龙华区人民医院口腔科,广东省深圳市 518109;2广东省口腔医院特诊中心,广东省广州市 510280;3广东省口腔医院番禺分院牙体牙髓科,广东省广州市 510280
  • 修回日期:2019-04-05 出版日期:2019-07-28 发布日期:2019-07-28
  • 通讯作者: 宋光保,博士,主任医师,教授,广东省口腔医院特诊中心,广东省广州市 510280
  • 作者简介:李小菊,硕士,主治医师。
  • 基金资助:

    广东省医学科研基金(A2017540),项目负责人:杨剑珍;深圳市卫生计生系统科研项目(SZFZ2018035):项目负责人:李小菊

Effect of concentrated growth factors on proliferation and differentiation of human gingival fibroblasts

Li Xiaoju1, Song Guangbao2, Yang Jianzhen3, Wei Bo1, Wu Bin1   

  1. 1Department of Stomatology, the People’s Hospital of Longhua, Shenzhen 518109, Guangdong Province, China; 2Center of Special Clinic, Guangdong Provincial Stomatological Hospital, Guangzhou 510280, Guangdong Province, China; 3Department of Endodontics, Panyu Branch of Guangdong Provincial Stomatological Hospital, Guangzhou 510280, Guangdong Province, China
  • Revised:2019-04-05 Online:2019-07-28 Published:2019-07-28
  • Contact: Song Guangbao, MD, Chief physician, Professor, Center of Special Clinic, Guangdong Provincial Stomatological Hospital, Guangzhou 510280, Guangdong Province, China
  • About author:Li Xiaoju, Master, Attending physician, Department of Stomatology, the People’s Hospital of Longhua, Shenzhen 518109, Guangdong Province, China
  • Supported by:

    the Medical Science Research Foundation of Guangdong Province, No. A2017540 (to YJZ); the Shenzhen Municipal Health and Family Planning System Research Project, No. SZFZ2018035 (to LXJ)

摘要:

文章快速阅读:

文题释义:
浓缩生长因子:
是第3代血小板浓缩萃取物质即浓缩生长因子,由于制备方法简单不添加任何物质,自体获取,不存在免疫排斥反应,其中含有高浓度生长因子,是一种理想的生物材料。
人牙龈成纤维细胞:是牙龈结缔组织中主体细胞,不仅具有活跃的自身更新能力和可以合成胶原纤维能力,而且具有一定的潜在成骨能力,在牙周组织的修复再生中起重要作用。

 

摘要
背景:
血液中含有大量具有再生和修复功能的生长因子及血小板成分,对软硬组织再生具有促进作用。
目的:通过体外实验研究浓缩生长因子萃取液对人牙龈成纤维细胞增殖和成骨分化的影响。通过临床体内试验研究浓缩生长因子在口腔种植中促进软硬组织再生的作用。
方法:选择深圳市龙华区人民医院口腔科就诊患者。①体外实验:用离心法制取患者静脉血浓缩生长因子,分离培养人牙龈成纤维细胞;实验分4组:对照组采用完全培养基培养,其他3组于完全培养基中添加体积分数25%,50%,100%的浓缩生长因子萃取液培养;②体内试验:对患者患牙进行微创拔牙同时植入种植体,并放置浓缩生长因子用于诱导软硬组织的快速愈合,6个月后分别进行二期种植手术,采用改良信封瓣增加唇侧牙龈厚度及增加近远中软组织的量进行牙龈塑形3个月,获得与邻牙相协调的软组织轮廓。
结果与结论:①体外实验结果:CCK-8检测,半定量碱性磷酸酶活性测定,矿化颗粒量和成骨相关基因RT-PCR检测显示,与对照组相比,培养3 d,50%和100%浓缩生长因子萃取液组人牙龈成纤维细胞增殖能力显著增强,培养第14天体积分数100%浓缩生长因子萃取液组的碱性磷酸酶活性升高,矿化分子量明显增多,成骨基因RUNX2和骨钙素mRNA的表达量升高;②体内试验结果:浓缩生长因子可以促进患者口腔种植体周围骨组织再生,与术后3个月对比,术后14个月种植体周围骨量显著增加,龈缘位置无明显退缩,龈乳头充盈牙间隙;③结果证实:浓缩生长因子萃取液可促进人牙龈成纤维细胞增殖与分化,可促进口腔种植体周围软硬组织再生。


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程
ORCID:
0000-0001-9438-2959(李小菊)

关键词: 浓缩生长因子, 浓缩生长因子萃取液, 血小板, 人牙龈成纤维细胞, 增殖, 分化, 口腔种植, 组织构建, 软组织再生, 骨组织再生

Abstract:

BACKGROUND: In the blood, there are a large number of growth factors and platelet components with regeneration and repair functions, which can promote the regeneration of soft and hard tissues.
OBJECTIVE: To study the effect of concentrated growth factor extract on the proliferation and osteogenic differentiation of human gingival fibroblasts and to explore the clinical application of concentrated growth factors in oral implantology.
METHODS: Patients admitted at the Department of Stomatology, People’s Hospital of Longhua, Shenzhen were selected. (1) In vitro experiment: Concentrated growth factors were extracted by centrifugation, and human gingival fibroblasts were isolated and cultured. The cells were divided into four groups and cultured in complete culture media containing 0 (control), 25%, 50% and 100% concentrated growth factor extract). (2) In vivo experiment: The affected teeth were extracted followed by dental implantation. Concentrated growth factor was placed to induce the rapid healing of soft and hard tissues. Six months later, two-stage implantation was performed. The modified envelope flap was used to increase the thickness of the labial gingiva and the amount of soft tissue in the proximal and distal areas for 3 months to obtain soft tissue contours in coordination with the adjacent teeth.
RESULTS AND CONCLUSION: (1) In vitro experiment results: Compared with the control group, the proliferation of human gingival fibroblasts was significantly increased by 50% and 100% concentrated growth factor extract on the 3rd day of culture. On the 14th day of culture, compared with the control group, the activity of alkaline phosphatase, the molecular weight of mineralization and the expression of osteoblast-associated genes RUNX2 and osteocalcin were significantly increased in the 100% concentrated growth factor extract group. (2) In vivo experiment results: Concentrated growth factor extract could promote bone regeneration around oral implants. There was no obvious retraction at the gingival margin, and the gingival papilla filled the space of the teeth. The bone mass around the implant increased significantly at 14 months in relative to 3 months after implantation. To conclude, concentrated growth factor extract can promote the proliferation and osteogenic differentiation of human gingival fibroblasts and the peri-implant regeneration of soft and hard tissue.

Key words: concentrated growth factor, concentrated growth factor extract, platelets, human gingival fibroblasts, proliferation, differentiation, oral implantation, tissue construction, soft tissue regeneration, bone tissue regeneration

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