淫羊藿苷促进胶原水凝胶三维立体培养成骨细胞的成熟分化
目的:研究淫羊藿苷对胶原水凝胶三维立体培养的新生大鼠颅骨成骨细胞( ROB)分化和成熟的影响。方法:取新生SD 大鼠颅骨,酶消化法培养ROB,将传代1次的ROB包埋于2 mg/mL的Ⅰ型鼠尾胶原中进行三维立体培养,48 h后进行双乙酸荧光素/碘化丙啶( FDA/PI )细胞染色、苏木素-伊红( HE )染色,并用扫描电镜观察细胞生长状态。分别采用终浓度为1×10^-4、1×10^-5、1×10^-6和1×10^-7 mol/L的淫羊藿苷进行干预,培养3、6、9 d后分别检测细胞内碱性磷酸酶活性,筛选最佳药物浓度;以最佳浓度淫羊藿苷干预三维凝胶中的ROB 12、24、36、48 h后,用实时定量...
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| Published in | 浙江大学学报(医学版) no. 3; pp. 301 - 307 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
兰州理工大学生命科学与工程学院,甘肃兰州,730050%兰州军区兰州总医院骨科研究所,甘肃兰州,730050
2015
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1008-9292 |
| DOI | 10.3785/j.issn.1008-9292.2015.05.10 |
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| Summary: | 目的:研究淫羊藿苷对胶原水凝胶三维立体培养的新生大鼠颅骨成骨细胞( ROB)分化和成熟的影响。方法:取新生SD 大鼠颅骨,酶消化法培养ROB,将传代1次的ROB包埋于2 mg/mL的Ⅰ型鼠尾胶原中进行三维立体培养,48 h后进行双乙酸荧光素/碘化丙啶( FDA/PI )细胞染色、苏木素-伊红( HE )染色,并用扫描电镜观察细胞生长状态。分别采用终浓度为1×10^-4、1×10^-5、1×10^-6和1×10^-7 mol/L的淫羊藿苷进行干预,培养3、6、9 d后分别检测细胞内碱性磷酸酶活性,筛选最佳药物浓度;以最佳浓度淫羊藿苷干预三维凝胶中的ROB 12、24、36、48 h后,用实时定量PCR和蛋白质印迹法分别检测骨形态发生蛋白2( BMP-2)、Runt相关转录因子2(RUNX-2)、Osterix mRNA及其蛋白表达情况。结果:胶原水凝胶三维立体培养的ROB 采用FDA/PI染色、HE染色以及扫描电镜结构显示, ROB在胶原水凝胶中分布均匀,生长状态良好。终浓度为1×10^-5、1×10^-6、1×10^-7 mol/L的淫羊藿苷可显著提高三维凝胶中ROB的碱性磷酸酶活性,其中以1×10^-6 mol/L浓度淫羊藿苷干预后ROB 的碱性磷酸酶活性最高。 1×10^-6 mol/L 淫羊藿苷能显著提高BMP-2、RUNX-2、Osterix mRNA及其蛋白表达量。结论:淫羊藿苷可显著促进三维立体培养的ROB成骨性相关因子的表达,提示淫羊藿苷对胶原水凝胶三维立体培养的ROB具有较强的促骨形成活性。 |
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| Bibliography: | Objective:To investigate the effects of icariin on the differentiation and maturation of rat calvarial osteoblasts ( ROB ) in collagen hydrogel three-dimensional culture.Methods: ROB were obtained by enzyme digestion from the segregated neonatal SD rats skull and were embedded in 2 mg/mL rat tail collagen for three-dimensional culture.The growth state of ROB was observed by FDA/PI staining, HE staining and scanning electron microscopy .ROB were treated with icariin at the concentration of 1 ×10^-4 , 1 ×10^-5 , 1 ×10^-6 and 1 ×10^-7 mol/L respectively .The activity of alkaline phosphatase (ALP) was detected after 3, 6, 9 d of icariin treatment. Three-dimensional cultured ROB were treated with optimal concentration icariin for 12, 24 , 36 , 48 h and total RNA was extracted and the mRNA expressions of bone morphogenetic protein-2 ( BMP-2 ) , Runt-related transcription factor 2 ( RUNX-2 ) and Osterix were detected by real time RT-PCR.The protein expression of BMP-2, RUNX-2 and Osterix were examined by Western-blo |
| ISSN: | 1008-9292 |
| DOI: | 10.3785/j.issn.1008-9292.2015.05.10 |