中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (11): 1917-1924.doi: 10.3969/j.issn.2095-4344.2013.11.003

• 软骨组织构建 cartilage tissue construction • 上一篇    下一篇

人参皂苷Rg1对软骨细胞Ⅱ型胶原表达的影响

张业勇,程文丹,陈哲峰,范卫民,刘 锋   

  1. 南京医科大学第一附属医院骨科,江苏省南京市 210029
  • 收稿日期:2012-12-08 修回日期:2012-12-29 出版日期:2013-03-12 发布日期:2013-03-12
  • 通讯作者: 刘锋,博士,副教授,硕士生导师,南京医科大学第一附属医院骨科,江苏省南京市 210029 njliuf@hotmail.com
  • 作者简介:张业勇★,男,1987年生,山东省济南市人,汉族,2010年辽宁医学院毕业,硕士,主要从事骨关节炎的机制与预防方面的研究。 402321300@qq.com

Effect of ginsenoside Rg1 on type Ⅱ collagen expression in chondrocytes

Zhang Ye-yong, Cheng Wen-dan, Chen Zhe-feng, Fan Wei-min, Liu Feng   

  1. Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
  • Received:2012-12-08 Revised:2012-12-29 Online:2013-03-12 Published:2013-03-12
  • Contact: Liu Feng, Doctor, Associate professor, Master’s supervisor, Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China njliuf@hotmail.com
  • About author:Zhang Ye-yong★, Master, Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China 402321300@qq.com

摘要:

背景:人参是具有抗炎、抗应激、调节免疫等广泛药理学活性的中草药,其主要药理活性成分是人参皂苷,而Rg1是含量较多的活性成分。
目的:探讨人参皂苷Rg1对白细胞介素1β诱导的人骨关节炎模型中软骨细胞Ⅱ型胶原及环氧合酶2 mRNA表达的影响。
方法:取因骨关节炎接受全膝关节置换患者的膝关节软骨进行体外培养,取第2代体外培养的软骨细胞,CCK-8检测0.001,0.01,0.1,1,10,100 mg/L人参皂苷Rg1对软骨细胞增殖率的影响。再将第2代体外培养的关节软骨细胞,随机分为空白组、对照组和实验组,分别加入DMEM培养液、10 μg/L白细胞介素1β,10 μg/L白细胞介素1β+0.1,1,10,100 mg/L人参皂苷Rg1,培养24 h后反转录PCR检测各组细胞中Ⅱ型胶原和环氧合酶2 mRNA的表达。
结果与结论:与对照组相比,人参皂苷Rg1质量浓度为0.001,0.01,0.1,1 mg/L时促进软骨细胞的增殖作用不明显,差异无显著性意义(P > 0.05);当人参皂苷Rg1质量浓度为10,100 mg/L时,促进软骨细胞的增殖作用明显(P < 0.05)。与空白组相比,对照组的软骨细胞Ⅱ型胶原的mRNA表达明显下降,而环氧合酶2 mRNA表达明显升高(P < 0.05);与对照组相比,联合加入人参皂苷Rg1质量浓度为0.1和1 mg/L时,人软骨细胞中Ⅱ型胶原和环氧合酶2 mRNA表达没有明显变化(P > 0.05);而联合加入人参皂苷Rg1质量浓度为10和100 mg/L时,人软骨细胞中Ⅱ型胶原mRNA表达增加,而环氧合酶2 mRNA表达降低(P < 0.05)。说明一定浓度的人参皂苷Rg1可以拮抗白细胞介素1β引起的人软骨细胞中Ⅱ型胶原的mRNA表达的降低和环氧合酶2 mRNA表达的升高。

关键词: 组织构建, 软骨组织构建, 人参皂苷Rg1, Ⅱ型胶原, 环氧合酶2, 软骨细胞, 白细胞介素1β, 反转录聚合酶链反应, 骨关节炎, CCK-8, 组织构建图片文章

Abstract:

BACKGROUND: Ginseng has a wide range of pharmacological activities, such as anti-inflammatory, anti-stress, and immunomodulatory roles. Its major pharmacological active ingredient is the ginsenoside, and Rg1 is an active ingredient with a higher content.
OBJECTIVE: To investigate the effect of ginsenoside Rg1 on type Ⅱ collagen and cyclooxygenase-2 mRNA expression in chondrocytes of an interleukin-1β-induced osteoarthritis model.
METHODS: Undamaged cartilage from osteoarthritis patients undergoing total knee arthroplasty was harvested and cultured. The effect of ginsenoside Rg1 (0.001, 0.01, 0.1, 1, 10, 100 mg/L) on proliferation rate of passage 2 chondrocytes was analyzed by Cell Counting Kit-8. Then the passage 2 chondrocytes were divided into blank group, control group and experimental group randomly. Dulbecco’s modified Eagle’s medium was added into the blank group alone. Interleukin-1β at a dose of 10 μg/L was added into the control group to establish an osteoarthritis model. While 10 μg/L interleukin-1β and ginsenoside Rg1 with different concentrations (0.1, 1, 10, 100 mg/L) were added into the experimental group concomitantly. After 24-hour in vitro culture, the expressions of type Ⅱ collagen and cyclooxygenase-2 gene in human articular chondrocytes were analyzed by reverse transcription-PCR.
RESULTS AND CONCLUSION: Promotive effect of the certain concentration of ginsenoside Rg1 on chondrocyte proliferation was observed by the result of cell counting kit-8 analysis. However, compared with the blank control group, the lower concentration of ginsenoside Rg1 (0.001, 0.01, 0.1, 1 mg/L) could not stimulate the proliferation rate of chondrocytes significantly (P > 0.05); only the higher concentration of ginsenoside Rg1 (10 and 100 mg/L) could stimulate the proliferation rate of chondrocytes significantly (P < 0.05). From the results of cell counting kit-8 analysis, compared with the blank group, the type Ⅱ collagen mRNA expression significantly decreased and cyclooxygenase-2 mRNA expression significantly increased in chondrocytes of the control group (P < 0.05). When 10 μg/L interleukin-1β and ginsenoside Rg1 of different concentrations (0.1 and 1 mg/L) were added concomitantly in the experimental group, the type Ⅱ collagen and cyclooxygenase-2 mRNA expression had no obvious changes compared with the control group (P > 0.05). Meanwhile, when 10 μg/L interleukin-1β and ginsenoside Rg1 of different concentrations (10, 100 mg/L) were added concomitantly in the experimental group, the type Ⅱ collagen mRNA expression significantly increased and cyclooxygenase-2 mRNA expression significantly decreased compared with the control group (P < 0.05). These findings showed that interleukin-1β induced decreased mRNA expression of type Ⅱ collagen and increased mRNA expression of cyclooxygenase-2 could be antagonized by somewhat concentration of ginsenoside Rg1.

Key words: tissue construction, cartilage tissue construction, ginsenoside Rg1, type Ⅱ collagen, cyclooxygenase-2, chondrocytes, interleukin-1 beta, reverse transcription-PCR, osteoarthritis, Cell Counting Kit-8, tissue construction photographs-containing paper

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