中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (10): 1546-1551.doi: 10.3969/j.issn.2095-4344.1626

• 细胞外基质材料 extracellular matrix materials • 上一篇    下一篇

国产多孔钽对MG63细胞中Ⅰ型胶原、谷氨酰转氨酶2和钙结合蛋白A4表达的影响

陈婧婧1,王 茜1,崔逸爽1,滕雪峰1,张 辉2,李琪佳1,3   

  1. 华北理工大学,1医学实验研究中心,3基础医学院,河北省唐山市 063210;2唐山市第二医院关节一科,河北省唐山市 063000
  • 收稿日期:2018-11-12 出版日期:2019-04-08 发布日期:2019-04-08
  • 通讯作者: 李琪佳,教授,主任医师,硕士生导师,华北理工大学医学实验研究中心,河北省唐山市 063210
  • 作者简介:陈婧婧,女,1990年生,山东省潍坊市人,汉族,华北理工大学在读硕士,主要从事骨组织工程研究。
  • 基金资助:

    国家科技部科技支撑课题资助项目(2012BAE06B03);河北省科技支撑资助项目(16277776D),项目负责人:李琪佳;河北省医学科学研究重点课题计划资助项目(20160225);华北理工大学博士科研启动基金资助项目(28606299),项目负责人:王茜;河北省卫计委资助课题(20180733),项目负责人:王茜

Effects of domestic porous tantalum on expression of collagen type I, tissue transglutaminase 2 and calcium-binding protein A4 in MG63 cells

Chen Jingjing1, Wang Qian1, Cui Yishuang1, Teng Xuefeng1, Zhang Hui2, Li Qijia1, 3   

  1. 1Medical Research Center, 3School of Basic Medical Sciences, North China University of Science and Technology, Tangshan 063210, Hebei Province, China; 2First Department of Joint, Second Hospital of Tangshan, Tangshan 063000, Hebei Province, China
  • Received:2018-11-12 Online:2019-04-08 Published:2019-04-08
  • Contact: Li Qijia, Professor, Chief physician, Master supervisor, Medical Research Center, North China University of Science and Technology, Tangshan 063210, Hebei Province, China; First Department of Joint, Second Hospital of Tangshan, Tangshan 063000, Hebei Province, China
  • About author:Chen Jingjing, Master candidate, Medical Research Center, North China University of Science and Technology, Tangshan 063210, Hebei Province, China
  • Supported by:

    the Project supported by the Ministry of Science and Technology of China, No. 2012BAE06B03; Hebei Province Science and Technology Support Project, No. 16277776D (to LQJ); Hebei Provincial Medical Research Project, No. 20160225; the Project Supported by the Foundation of Doctoral Research of North China University of Science and Technology, No. 28606299 (to WQ); the Project Supported by Hebei Provincial Health and Family Planning Commission, No. 20180733 (to WQ)

摘要:

文章快速阅读:

 

 文题释义:
国产多孔钽
:具有自主知识产权,具有立体三维空间构型,具有与人体骨组织相近的力学强度、弹性模量,具有良好的生物相容性及骨传导能力。在植入时可使其周围骨组织黏附并向孔隙内生长,正逐渐替代自体骨、同种异体骨、金属钛和不锈钢等传统医用生物材料,成为骨缺损修复的新型修复材料。
多孔钽成骨机制:国产多孔钽与MG63细胞体外复合培养后,细胞与多孔钽接触并在其表面及孔隙中黏附生长,与周围相邻细胞连接、融合,细胞增殖及分化,同时Ⅰ型胶原、谷氨酰转氨酶2呈高表达。证实国产多孔钽可增强成骨细胞黏附性,进一步促进细胞的增殖和矿化;而钙结合蛋白A4呈低表达,提示此时细胞分化作用加强,利于新骨成熟。
MG63细胞:为人成骨肉瘤细胞,细胞形态呈成纤维细胞样,贴壁生长,该细胞源自14岁患有骨肉瘤的白人男性,该细胞表达转化生长因子β受体Ⅰ和Ⅱ。


背景:目前有证据已证实国产多孔钽具有良好的生物相容性及促成骨性能,但具体的成骨机制及对成骨因子的影响尚不明确。
目的:观察国产多孔钽材料对MG63细胞Ⅰ型胶原、谷氨酰转氨酶2及钙结合蛋白A4表达的影响。
方法:将对数生长期的MG63细胞接种于24孔板,分3组培养:空白组加入常规培养基,钽浸提液组加入多孔钽材料浸提液,钽支架组加入多孔钽材料与常规培养基。培养第1,3,5,7,9天,CCK-8法检测各组细胞增殖;培养第5天,采用ELISA酶联免疫吸附法检测各组细胞分泌Ⅰ型胶原、谷氨酰转氨酶2和钙结合蛋白A4的水平,Western-blot法检测各组细胞中钙结合蛋白A4、Ⅰ型胶原、谷氨酰转氨酶2蛋白的表达。
结果与结论:①随着培养时间的延长,各组细胞数量呈逐渐增加趋势,3组不同时间点的细胞增殖比较无差异(P > 0.05);②钽支架组Ⅰ型胶原、谷氨酰转氨酶2分泌高于空白组、钽浸提液组(P < 0.05),钽浸提液组Ⅰ型胶原、谷氨酰转氨酶2分泌高于空白组(P < 0.05);钽支架组钙结合蛋白A4分泌低于其他两组(P < 0.05);③钽支架组中Ⅰ型胶原、谷氨酰转氨酶2蛋白表达均高于空白组、钽浸提液组(P < 0.05),钽浸提液组中Ⅰ型胶原、谷氨酰转氨酶2蛋白表达高于空白组(P < 0.05);钽支架组钙结合蛋白A4蛋白表达均低于空白组、钽浸提液组(P < 0.05);④结果表明,国产多孔钽材料可促进MG63细胞分泌Ⅰ型胶原、谷氨酰转氨酶2,抑制其分泌钙结合蛋白A4。

ORCID: 0000-0001-9890-7177(陈婧婧)

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程

关键词: 国产多孔钽, MG63细胞, Ⅰ型胶原, 谷氨酰转氨酶2, 钙结合蛋白A4, 钽浸提液

Abstract:

BACKGROUND: At present, there is evidence that domestic porous tantalum has good biocompatibility and osteogenic properties, but the specific osteogenic mechanism and its effect on osteogenic factors are still unclear.

OBJECTIVE: To observe the effects of domestic porous tantalum materials on the expression of collagen type I, tissue transglutaminase-2 and calcium-binding protein A4 in MG63 cells.
METHODS: MG63 cells in logarithmic growth phase were inoculated onto 24-well plates and cultured in three groups: in blank group, conventional medium was added; in tantalum extract group, porous tantalum material extract was added; and in tantalum scaffold group, porous tantalum material and conventional medium were added. On 1, 3, 5, 7 and 9 days of culture, the cell proliferation of each group was detected by cell counting kit-8 method. On 5 days of culture, the levels of collagen type I, tissue transglutaminase-2 and calcium-binding protein A4 secreted by MG63 cells in each group were detected by ELISA. Western blot assay was used to detect the expression of three proteins in each group.

RESULTS AND CONCLUSION: (1) With the prolongation of culture time, the number of cells in each group increased gradually. There was no difference in cell proliferation among the three groups at different time points (P > 0.05). (2) The secretory levels of collagen type I and tissue transglutaminase-2 in the tantalum scaffold group were significantly higher than those in the blank group and tantalum extract group  (P < 0.05), while the secretion of collagen type I and tissue transglutaminase-2 in the tantalum extract group was significantly higher than that in the blank group (P < 0.05). The secretion of calcium-binding protein A4 in the tantalum scaffold group was significantly lower than that in the other two groups (P < 0.05). (3) The expression of collagen type I and tissue transglutaminase-2 protein in the tantalum scaffold group was significantly higher than that in the blank group and tantalum extract group (P < 0.05), while the expression of collagen type I and tissue transglutaminase-2 protein in the tantalum extract group was significantly higher than that in the blank group (P < 0.05). The expression of calcium-binding protein A4 in the tantalum scaffold group was significantly lower than that in the blank group and tantalum extract group (P < 0.05). To conclude, domestic porous tantalum materials could promote the secretion of collagen type I and tissue transglutaminase-2 by MG63 cells, and inhibit the secretion of calcium-binding protein A4.

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程

Key words: Tantalum;, Collagen Type I, Calcium-Binding Proteins;, Osteoblasts, Tissue Engineering

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