中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (16): 2347-2353.doi: 10.3969/j.issn.2095-4344.2016.16.009

• 组织工程口腔材料 tissue-engineered oral materials • 上一篇    下一篇

金属离子Cu2+、Fe3+对水凝胶RADA16-NBD培养条件下成骨细胞生长与分化的影响

石金明1,2,赵 刚2,阮 蔷2   

  1. 1佳木斯大学研究生学院,黑龙江省佳木斯市 154002;2佳木斯大学第二附属医院正畸科,黑龙江省佳木斯市 154002
  • 收稿日期:2016-02-14 出版日期:2016-04-15 发布日期:2016-04-15
  • 通讯作者: 赵刚,副教授,副主任医师,硕士生导师,佳木斯大学附属第二医院口腔医院正畸科,黑龙江省佳木斯市 154002
  • 作者简介:石金明,男,1987年生,黑龙江省佳木斯市人,汉族,在读硕士,主要从事临床口腔医学研究。
  • 基金资助:

    佳木斯大学研究生科技创新项目(LZZ2014_027);黑龙江省自然科学基金项目(H201487)

Effect of Cu2+ and Fe3+ on osteoblast growth and differentiation in hydrogel RADA16-NBD

Shi Jin-ming1, 2, Zhao Gang2, Ruan Qiang2   

  1. 1Graduate School of Jiamusi University, Jiamusi 154002, Heilongjiang Province, China; 2Department of Orthodontics, Second Affiliated Hospital of Jiamusi University, Jiamusi 154002, Heilongjiang Province, China
  • Received:2016-02-14 Online:2016-04-15 Published:2016-04-15
  • Contact: Zhao Gang, Associate professor, Associate chief physician, Master’s supervisor, Department of Orthodontics, Second Affiliated Hospital of Jiamusi University, Jiamusi 154002, Heilongjiang Province, China
  • About author:Shi Jin-ming, Studying for master’s degree, Graduate School of Jiamusi University, Jiamusi 154002, Heilongjiang Province, China
  • Supported by:

    the Technological Innovation Project for Graduate in Jiamusi University, No. LZZ2014_027; the Natural Science Foundation of Heilongjiang Province, No. H201487

摘要:

文章快速阅读:

 

文题释义:
水凝胶RADA16-NBD: RADA16-I是一种新型的自组装多肽纳米纤维水凝胶支架材料,分子水平组装成β折叠结构,在亲水面往复形成互补离子键,组装为纳米纤维,在其表面已有细胞及MC3T3-E1细胞附着生长的研究。这种纳米纤维支架结构与细胞外基质相近,能够为组织细胞提供良好的三维培养条件。此外,RADA16可在其C端末端复合上短的生物活性多肽片段(一般不超过15个氨基酸片段),构建新型功能化自组装多肽纳米纤维水凝胶支架材料。水凝胶RADA16-NBD,即为氨基酸构成的多肽生物支架,它将多肽短链NBD结合于单纯多肽RADA16,用α-MEM细胞培养基触发,可自组装形成利于细胞体外生长的水凝胶三维环境。
成骨细胞增殖:由多种生长因子调控,包括胰岛素样生长因子、表皮生长因子、转化生长因子β、Wnt、血小板源性生长因子及骨形态发生蛋白等。成熟的成骨细胞可以表达碱性磷酸酶、Osterix、Coll、骨粘连蛋白、骨钙蛋白和骨桥蛋白等,其中碱性磷酸酶是成骨细胞的早期成熟标志,晚期矿化标志是骨钙素与钙磷等结合形成的结晶。
 
背景:在自组装功能性RADA16-NBD水凝胶中进行成骨细胞MC3T3-E1体外培养已较成熟,且骨骼的正常代谢与多种金属离子(如铁、铜、锌、锰等)有关已被证实。
目的:观察Cu2+和Fe3+对自组装功能性RADA16-NBD水凝胶培养下成骨细胞MC3T3-E1增殖、分化等相关方面的影响。
方法:将成骨细胞与自组装功能性RADA16-NBD水凝胶进行三维培养,分3组干预,分别加入Cu2+、Fe3+、不含血清培养基(对照组),培养24,48,72 h,CCK-8法检测细胞增殖;培养1,3,5 d,检测细胞碱性磷酸酶活性;培养21 d时,观察细胞钙化结节情况;Transwill小室培养24 h,观察细胞迁移能力。
结果与结论:①细胞增殖:Cu2+组、Fe3+组培养24,48 h的细胞增殖高于对照组(P < 0.05,P < 0.01);培养72 h时,3组细胞增殖无差异;②细胞碱性磷酸酶活性:Cu2+组、Fe3+组培养1,3,5 d的细胞碱性磷酸酶活性高于对照组(P < 0.05),Cu2+组培养3,15 d的细胞碱性磷酸酶活性高于Fe3+组(P < 0.05);③细胞迁移:Cu2+组迁移细胞数量多于Fe3+组(P < 0.05);④结果表明:Cu2+和Fe3+均可促进MC3T3-E1成骨细胞的增殖、分化及迁移,但Cu2+对成骨细胞的影响要优于Fe3

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
ORCID: 0000-0002-3647-510X(赵刚)

关键词: 生物材料, 材料相容性, 自组装, RADA16-NBD水凝胶, 金属离子, 成骨细胞, 三维培养, Transwill小室, 黑龙江省自然科学基金

Abstract:

BACKGROUND: It is a mature technology to culture MC3T3-E1 cells in the self-assembling peptide hydrogel, RADA16-NBD. Moreover, it is confirmed that a variety of metal ions, such as Fe, Cu, Zn, Mn, are involved in normal bone metabolism.

OBJECTIVE: To observe the effect of Cu2+ and Fe3+ on the proliferation and differentiation of MC3T3-E1 cells cultured in the self-assembling peptide hydrogel, RADA16-NBD.
METHODS: Osteoblasts cultured with RADA16-NBD were divided into three groups and respectively cultured in culture medium containing Cu2+, Fe3+ or serum-free medium (control group), respectively. After 24, 48 and 72 hours, cell proliferation was detected by cell counting kit-8. After 1, 3, 5 days, alkaline phosphatase activity was detected. At 21 days, formation of calcified nodules was observed. Cell migration ability of cells was observed at 24 hours of Transwill chamber culture.
RESULTS AND CONCLUSION: Compared with the control group, the proliferative ability of cells cultured in the Cu2+, Fe3+ groups was significantly higher (P < 0.05, P < 0.01). At 72 hours of culture, there was no difference in the cell proliferation among the three groups. At 1, 3, 5 days of culture, the alkaline phosphatase activity in the Cu2+, Fe3+ groups was significantly higher than that in the control group (P < 0.05); while at 3 and 5 days of culture, the alkaline phosphatase activity in the Cu2+ group was significantly higher than that in the Fe3+ group (P < 0.05). In addition, the number of migrated cells was higher in the Cu2+ group than the Fe3+ group (P < 0.05). These findings indicate that both Cu2+ and Fe3+, especially the former one, can promote MC3T3-E1 cell proliferation, differentiation and migration.
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: Hydrogel, Osteoblasts, Cell Proliferation, Tissue Engineering