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纸质出版日期:2018
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柴艺汇, 高洁, 田兴中, 等. 黄芪多糖对MC-3T3-E1成骨细胞CYP27B,CYP24A mRNA及蛋白表达的影响[J]. 中国实验方剂学杂志, 2018,24(13):147-151.
CHAI Yi-hui, GAO Jie, TIAN Xing-zhong, et al. Effect of Astragali Radix Polysaccharide on mRNA and Protein Expression of CYP27B, CYP24A in MC-3T3-E1 Osteoblasts[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(13): 147-151.
柴艺汇, 高洁, 田兴中, 等. 黄芪多糖对MC-3T3-E1成骨细胞CYP27B,CYP24A mRNA及蛋白表达的影响[J]. 中国实验方剂学杂志, 2018,24(13):147-151. DOI: 10.13422/j.cnki.syfjx.20181327.
CHAI Yi-hui, GAO Jie, TIAN Xing-zhong, et al. Effect of Astragali Radix Polysaccharide on mRNA and Protein Expression of CYP27B, CYP24A in MC-3T3-E1 Osteoblasts[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(13): 147-151. DOI: 10.13422/j.cnki.syfjx.20181327.
目的:通过研究黄芪多糖对成骨细胞增殖及1α羟化酶(CYP27B),24-羟基化酶(CYP24A)基因与蛋白表达情况的影响对其治疗骨质疏松症(OP)作用机制进行初步探讨。方法:以MC-3T3-E1成骨细胞为研究对象,实验分为5组,分别为正常组,维生素D组(1×10-5 mmol·L-1),黄芪多糖高、中、低剂量组(10,1,0.1 mg·L-1)。用噻唑蓝(MTT)比色法检测不同浓度的黄芪多糖在不同时间(24,36,48 h)对MC-3T3-E1成骨细胞增殖率的影响。实时荧光定量聚合酶链式反应法(Real-time PCR)检测黄芪多糖对MC-3T3-E1成骨细胞CYP24A,CYP27B mRNA的表达情况;蛋白免疫印迹法(Western blot)检测黄芪多糖对MC-3T3-E1成骨细胞CYP24A,CYP27B蛋白的表达情况。结果:MTT比色法显示黄芪多糖的质量浓度在0.1,1,10 mg·L-1时可以提高MC-3T3-E1成骨细胞的增殖率,且在48 h促增殖作用最佳。Real-time PCR,Western blot检测结果显示,与正常组比较,维生素D组MC-3T3-E1成骨细胞CYP27B mRNA表达量、蛋白表达量有显著促进作用(P<0.05);与维生素D组比较,黄芪多糖在质量浓度为10,1,0.1 mg·L-1时对MC-3T3-E1成骨细胞CYP24A mRNA表达量、蛋白表达量有显著抑制作用(P<0.05)。结论:黄芪多糖能够治疗骨质疏松症其机制与提高成骨细胞活性及调节MC-3T3-E1成骨细胞CYP24A,CYP27B mRNA及蛋白表达水平有关。
Objective: To investigate the effects of Astragali Radix polysaccharides on osteoblast proliferation
1α hydroxylase (CYP27B) and 24-hydroxylase (CYP24A) gene and protein expression and preliminarily explore its mechanism in the treatment of osteoporosis (OP). Method: The MC-3T3-E1 osteoblasts were divided into 5 groups:normal group
vitamin D group (1×10-5 mmol·L-1)
Astragali Radix polysaccharide high dose (10 mg·L-1) group
Astragali Radix polysaccharide middle dose (1 mg·L-1) group and Astragali Radix polysaccharide low dose (0.1 mg·L-1) group. The effect of different concentrations of Astragali Radix polysaccharides on the proliferation of MC-3T3-E1 osteoblasts at different time points (24
36
48 h) was detected by methylthiazoletetrazolium colorimetry method (MTT). The mRNA expression of CYP24A and CYP27B in MC-3T3-E1 osteoblasts was detected by real-time quantitative fluorescence polymerase chain reaction (Real-time PCR) and the protein expression of CYP24A and CYP27B in asthmatic rat MC-3T3-E1 osteoblasts was detected by Western blot. Result: MTT assay showed that the proliferation rate of MC-3T3-E1 osteoblasts could be enhanced by Astragali Radix polysaccharide at the concentrations of 0.1
1
10 mg·L-1
and the effect was best at 48 h. The results of Real-time PCR and Western blot showed that the mRNA and protein expression levels of CYP27B in MC-3T3-E1 osteoblasts were significantly promoted in vitamin D group as compared with the normal group (P <0.05). As compared with vitamin D group
the Astragali Radix polysaccharides (10
1
0.1 mg·L-1) significantly inhibited the mRNA and protein expression of CYP24A in MC-3T3-E1 osteoblast (P<0.05). Conclusion: The mechanism of Astragali Radix polysaccharide to treat osteoporosis is related to the improvement of osteoblast activity and the regulation of CYP24A
CYP27B mRNA and protein expression levels in MC-3T3-E1 osteoblast.
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