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) ›› 2011, Vol. 5 ›› Issue (03) : 252 -262. doi: 10.3877/cma.j.issn.1674-1366.2011.03.004

基础研究

成骨生长肽对体外人牙髓细胞增殖和矿化作用的影响
吕陶红1, 高燕1,(), 安少锋1, 庄沛林1, 叶国荣1   
  1. 1.510055 广州,中山大学光华口腔医学院·附属口腔医院·口腔医学研究所
  • 收稿日期:2010-12-31 出版日期:2011-06-01
  • 通信作者: 高燕

Effect of osteogenic growth peptide on proliferation and mineralization of human dental pulp cells in vitro

Tao-hong LV1, Yan GAO1,(), Shao-feng AN1, Pei-lin ZHUANG1, Guo-rong YE1   

  1. 1.Guanghua School of Stomatology, Institute of Stomatological Research, Sun Yat-sen University,Guangzhou 510055, China
  • Received:2010-12-31 Published:2011-06-01
  • Corresponding author: Yan GAO
引用本文:

吕陶红, 高燕, 安少锋, 庄沛林, 叶国荣. 成骨生长肽对体外人牙髓细胞增殖和矿化作用的影响[J/OL]. 中华口腔医学研究杂志(电子版), 2011, 5(03): 252-262.

Tao-hong LV, Yan GAO, Shao-feng AN, Pei-lin ZHUANG, Guo-rong YE. Effect of osteogenic growth peptide on proliferation and mineralization of human dental pulp cells in vitro[J/OL]. Chinese Journal of Stomatological Research(Electronic Edition), 2011, 5(03): 252-262.

目的

观察成骨生长肽(OGP)对体外人牙髓细胞增殖和矿化作用的影响。

方法

酶消化组织块法体外培养人牙髓细胞(hDPCs),倒置相差显微镜观察hDPCs 的形态。CCK-8、碱性磷酸酶(ALP)试剂盒检测筛选最佳浓度OGP;最佳浓度组、对照组、单纯矿化液组和含最佳浓度的矿化液组做茜素红、Von Kossa 染色和反转录聚合酶链反应(RT-PCR)检测。

结果

酶消化组织块法可以良好的体外培养hDPCs;OGP 浓度在10-7 ~10-11 mol/L 均能促进hDPCs 增殖和ALP 活性:促增殖最佳浓度为10-10 mol/L,随时间延长,与10-9 mol/L 浓度组间差异无统计学意义;OGP 浓度为10-9 mol/L 时能显著增强ALP 活性。 茜素红和Von Kossa染色观察第14、21 天,四组均有钙化结节形成,联合组结节最大,数量最多;RT-PCR 结果显示第7、14、21 天,联合组的Ⅰ型胶原、牙本质涎磷蛋白(DSPP)和骨钙素(OCN)的mRNA 表达量均高于其他各组(P <0.01)。

结论

OGP 能促进体外hDPCs 的增殖和分化,结合两者最优浓度为10-9 mol/L;茜素红和Von Kossa 染色可以观察钙化结节形成过程;OGP 联合矿化诱导液可以显著提高体外hDPCs 的矿化。

Objective

To investigate the effect of osteogenic growth peptide on proliferation and mineralization of human dental pulp cells (hDPCs) in vitro.

Methods

The hDPCs were cultured in vitro with tissue-explants enzymatic digestion method.The morphological characters of the cells were observed by inverted microscope.We selected the best concentration of OGP beneficial to the proliferation and ALP activity of cultured hDPCs by using CCK-8 method and alkaline phosphatase activity test; Alizarin bordeaux and Von Kossa staining methods were used to observe the minera-lization nodules.RT-PCR test was used to detect relative RNA level of CollagenⅠ, DSPP and OCN.

Results

Tissue-explants enzymatic digestion method could cultivate hDPCs well in vitro; the maximum response was obtained with 10 -10 mol/L and 10-9 mol/L by using CCK-8 method.However, the optimal concentration was 10 -9 mol/L by using alkaline phosphatase activity test.Alizarin bordeaux and Von Kossa staining cells cultured for 14 and 21 d,we discovered mineralization nodules in each group, but in the join group the nodules were more numerouse and larger.The results of RT-PCR test showed that mRNA level of CollagenⅠ, DSPP and OCN was higher in the join group.

Conclusions

OGP could promote the proliferation and mineralization of hDPCs in vitro, and the optimal concentration was 10-9 mol/L when considering the two aspects.Alizarin bordeaux and Von Kossa staining methods could observe the mineralization nodules dramaticlly.Mineralization induced liquid containing OGP group could markedly improve the mineralization of hDPCs in vitro.

表1 实时定量聚合酶链反应引物序列
图1 体外培养第3 天少量hDPCs 从组织块旁边爬出(倒置显微镜 × 100)
图2 体外培养第5 天大量hDPCs 向外生长聚集(倒置显微镜 × 100)
图3 第3 代细胞形态较均一,排列成典型的“旋涡状”或束状(倒置显微镜 × 50)
表2 不同浓度OGP 对体外hDPCs 增殖率的影响(n=6,±s)
表3 不同浓度OGP 对体外hDPCs 碱性磷酸酶活性的影响(n=5,±s)
图4 细胞培养后第7 天茜素红染色结果(倒置显微镜 × 100) A:对照组; B:因子组; C:单矿组; D 联合组
图5 细胞培养后第14 天茜素红染色结果(倒置显微镜 × 100) A:对照组; B:因子组; C:单矿组; D 联合组。 箭头所指为矿化结节
图6 细胞培养后第21 天茜素红染色结果(倒置显微镜 × 100) A:对照组; B:因子组; C:单矿组; D 联合组。 箭头所指为矿化结节
图7 细胞培养后第14 天Von Kossa 染色结果(倒置显微镜 × 200) A:对照组; B:因子组; C:单矿组; D 联合组。 箭头所指为矿化结节
图8 细胞培养后第21 天Von Kossa 染色结果(倒置显微镜 × 200) A:对照组; B:因子组; C:单矿组; D 联合组。 箭头所指为矿化结节
图9 第7 天各检测基因mRNA 相对表达量
图10 第14 天各检测基因mRNA 相对表达量
图11 第21 天各检测基因mRNA 相对表达量
1
Bab I, Gazit D, Chorev M, et al.Histone H4-related osteogenic growth peptide (OGP): a novel circulatingstimulator of osteoblastic activity.EMBO J, 1992,11(5):1867-1873.
2
Fazzi R, Galimberti S, Testi R, et al.Bone and bone marrow interactions: hematological activity of osteoblastic growth peptide (OGP)-derived carboxy-terminal pentapeptide.Ⅱ.Action on human hematopoietic stem cells.Leuk Res, 2002,26(9):839-848.
3
Fazzi R, Testi R, Trasciatti S, et al.Bone and bone-marrow interactions: haematological activity of osteoblastic growth peptide(OGP)-derived carboxy-terminal pentapeptide.Mobilizing properties on whi-te blood cells and peripheral blood stem cells in mice.Leuk Res,2002,26(1):19-27.
4
Nakao K, Itoh M, Tomita Y, et al.FGF-2 potently induces both proliferation and DSP expression in collagen type Ⅰgel cultures of adult incisor immature pulp cells.Biochem Biophys Res Commun, 2004,325(3):1052-1059.
5
Huojia M, Muraoka N, Yoshizaki K, et al.TGF-beta3 induces ectopic mineralization in fetal mouse dental pulp during tooth germ development.Dev Growth Differ, 2005,47(3):141-152.
6
Reichenmiller KM, Mattern C, Ranke MB, et al.IGFs, IGFBPs, IGF-binding sites and biochemical markers of bone metabolism during differentiation in human pulp fibroblasts.Horm Res, 2004,62(1):33-39.
7
Greenberg Z, Gavish H, Muhlrad A, et al.Isolation of osteogenic growth peptide from osteoblastic MC3T3 E1 cell cultures and demonstration of osteogenic growth peptide binding proteins.J Cell Biochem, 1997,65(3):359-367.
8
Gabarin N, Gavish H, Muhlrad A, et al.Mitogenic G (i) protein-MAP kinase signaling cascade in MC3T3-E1 osteogenic cells: activation by C-terminal pentapeptide of osteogenic growth peptide [OGP (10-14)] and attenuation of activation by cAMP.J Cell Biochem, 2001,81(4):594-603.
9
Robinson D, Bab I, Nevo Z.Osteogenic growth peptide regulates proliferation and osteogenic maturation of human and rabbit bone marrow st romal cells.J Bone Miner Res, 1995,10(5):690-696.
10
徐凌,黄姣,向学熔.成骨生长肽对人牙周膜细胞增殖和碱性磷酸酶活性的影响.中国组织工程研究与临床康复, 2009,13(14):4627-4631.
11
Fei Q, Guo C, Xu X, et al.Osteogenic growth peptide enhances the proliferation of bone marrow mesenchymal stem cells from osteoprotegerin-deficient mice by CDK2/cyclin A.Acta Biochim Biophys Sin (Shanghai), 2010,42(11):801-806.
12
肖毅,王建国,白增亮.成骨生长肽对大鼠骨髓基质细胞增殖和成骨分化的作用.中国骨伤, 2008,21(11):843-845.
13
徐杨,陈统一,林飞跃,等.合成成骨生长肽对人骨髓间充质干细胞成骨转化的促进.中国组织工程研究与临床康复, 2009,13(6):1053-1058.
14
周雯雯,王璐,徐凌.成骨生长肽对钛表面人牙周膜成纤维细胞增殖分化影响的研究.重庆医科大学学报, 2010,35(6):873-876.
15
Brager MA, Patterson MJ, Connolly JF, et al.Osteogenic growth peptide normally stimulated by blood loss and marrow ablation has local and systemic effects on fracture healing in rats.J Orthop Res, 2000,18(1):133-139.
16
Vanella L, Kim DH, Asprinio D, et al.HO-1 expression increases mesenchymal stem cell-derived osteoblasts but decreases adipocyte lineage.Bone, 2010,46(1):236-243.
17
Shuqiang M, Kunzheng W, Xiaoqiang D, et al.Osteogenic growth peptide incorporated into PLGA scaffolds accelerates healing of segmental long bone defects in rabbits.J Plast Reconstr Aesthet Surg, 2008,61(12):1558-1560.
18
Moore NM, Lin NJ, Gallant ND, et al.The use of immobilized osteogenic growth peptide on gradient substrates synthesized via click chemistry to enhance MC3T3-E1 osteoblast proliferation.Biomaterials, 2010,31(7):1604-1611.
19
Fazzi R, Galimberti S, Pacini S, et al.Bone and bone marrow interactions:hematological activity of osteo blastic growth peptide (OGP)-derived carboxy-terminal pentapeptide Ⅲ.Action on human megakaryocytopoiesis:focus on essential thrombocythemia.Leuk Res, 2004,28(10):1097-1105.
20
Liao H, Andersson AS, Sutherland D, et al.Response of rat osteoblast-like cells to microstructured model surfaces in vitro.Biomaterials,2003,24(4):649-654.
[1] 张敏华, 李许演, 蒋宏伟, 凌均棨. 凝溶胶蛋白gelsolin对人牙髓细胞增殖及迁移的影响[J/OL]. 中华口腔医学研究杂志(电子版), 2016, 10(02): 79-85.
[2] 关祥艳, 李启梦, 刘惠娟, 徐琼. PI3K/AKT 信号通路对体外人牙髓细胞增殖和成牙本质向分化能力的影响[J/OL]. 中华口腔医学研究杂志(电子版), 2014, 8(03): 191-196.
阅读次数
全文


摘要