中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (32): 5133-5138.doi: 10.3969/j.issn.2095-4344.0366

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

单味药鹿茸调节骨关节炎模型兔软骨细胞外基质主要成分ADAMTS-4/TIMP-3基因的表达

孙志涛1,冯华龙2,何升华1,赖居易1,黄飞强2,王业广1   

  1. 1深圳市中医院,广东省深圳市  518033;2广州中医药大学第四临床医学院,广东省深圳市  518033
  • 收稿日期:2018-05-20 出版日期:2018-11-18 发布日期:2018-11-18
  • 通讯作者: 何升华,硕士,主任医师,深圳市中医院,广东省深圳市 518033
  • 作者简介:孙志涛,男,1978年生,安徽省淮南市人,汉族,2013年广州中医药大学毕业,博士,主治医师,主要从事脊柱、髋膝关节退行性变研究。
  • 基金资助:

    深圳市卫生计生系统科研项目(201505016)

Pilose antler regulates the expression of ADAMTS-4/TIMP-3 gene in the extracellular matrix in a rabbit model of osteoarthritis

Sun Zhi-tao1, Feng Hua-long2, He Sheng-hua1, Lai Ju-yi1, Huang Fei-qiang2, Wang Ye-guang1   

  1. 1Shenzhen Traditional Chinese Medicine Hospital, Shenzhen 518033, Guangdong Province, China; 2Fourth Clinical Medical College, Guangzhou University of Chinese Medicine, Shenzhen 518033, Guangdong Province, China
  • Received:2018-05-20 Online:2018-11-18 Published:2018-11-18
  • Contact: He Sheng-hua, Master, Chief physician, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen 518033, Guangdong Province, China
  • About author:Sun Zhi-tao, MD, Attending physician, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen 518033, Guangdong Province, China
  • Supported by:

    the Shenzhen Health and Family Planning System Research Project, No. 201505016

摘要:

文章快速阅读:

文题释义:
羟脯氨酸:是亚氨基酸之一,人体胶原蛋白中含量最高,关节软骨主要由细胞外基质组成, 细胞外基质中Ⅱ型胶原是含量最高的有机成分,为特征性蛋白,其主要成分为羟脯氨酸,是软骨中特征性氨基酸,细胞外基质中Ⅱ型胶原的降解促进羟脯氨酸释放,故膝关节软骨中羟脯氨酸的含量反映了膝关节退变程度。
蛋白聚糖:是细胞外基质的重要成分之一。可与细胞外基质中的胶原、 纤粘连蛋白、层粘连及弹性蛋白结合,构成具有组织特性的细胞外基质。不同组织的细胞外基质中含有不同类型、不同含量蛋白聚糖,并与其功能相适应。
摘要
背景:
大量研究证实鹿茸对于治疗骨关节炎有效,但是其与软骨细胞外基质主要成分ADAMTS-4/TIMP-3基因的相关性却报道较少。
目的:探讨鹿茸对兔骨关节炎模型ADAMTS-4/TIMP-3基因表达的影响,进一步阐明鹿茸防治骨关节炎的作用机制。
方法:选择健康雌性新西兰大白兔42只,采用前交叉韧带离断法建立兔骨关节炎模型,随机分为3组:对照组(生理盐水)、低剂量鹿茸组(0.21 g/kg)和高剂量鹿茸组(0.84 g/kg)。干预9周后,检测双膝关节中的羟脯氨酸含量,采用RT-PCR检测各组软骨靶基因mRNA的表达,采用Western blot测量蛋白聚糖和Ⅱ型胶原蛋白的表达。
结果与结论:①低剂量鹿茸组和高剂量鹿茸组软骨羟脯氨酸含量显著高于对照组,且高剂量鹿茸组显著高于低剂量鹿茸组(P < 0.05);②高剂量鹿茸组和低剂量鹿茸组ADAMTS-4 mRNA表达较对照组明显降低,且高剂量显著组低于低剂量鹿茸组(P < 0.05),而TIMP-3、蛋白聚糖、Ⅱ型胶原蛋白mRNA表达较对照组明显增加,且高剂量鹿茸组显著高于低剂量鹿茸组(P < 0.05);③高剂量鹿茸组和低剂量鹿茸组蛋白聚糖、Ⅱ型胶原蛋白表达较对照组明显增高,且高剂量鹿茸组显著高于低剂量鹿茸组(P < 0.05);④结果提示,鹿茸通过抑制ADAMTS-4的分泌,促进保护因子TIMP-3的分泌,阻止蛋白聚糖、Ⅱ型胶原蛋白蛋白的降解,起到修复软骨的作用。

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程
ORCID: 0000-0003-2435-0227(何升华)

关键词: 鹿茸, 兔模型, 骨关节炎, ADAMTS-4, TIMP-3, 羟脯胺酸, 蛋白聚糖, Ⅱ型胶原蛋白, 软骨修复

Abstract:

BACKGROUND: Pilose antler has been shown to be effective for osteoarthritis, but its association with ADAMTS-4/TIMP-3 gene (main composition of extracellular matrix) is rarely reported.
OBJECTIVE: To investigate the effect of pilose antler on the expression of ADAMTS-4/TIMP-3 gene in rabbit models of osteoarthritis, and to further elucidate the mechanism of pilose antler in the prevention and treatment of osteoarthritis.
METHODS: Forty-two healthy female New Zealand white rabbits were selected and used for establishing the models of osteoarthritis by anterior cruciate ligament rupture. The rabbit models were then randomized into three groups: control group (normal saline), low-dose    (0.21 g/kg) and high-dose (0.84 g/kg) pilose antler groups. After intervention for 9 weeks, the content of hydroxyproline in both knees was detected. The expression levels of mRNA of cartilage target genes in each group were detected by RT-PCR. Protein expression levels of aggrecan and collagen type II were determined by western blot assay. 
RESULTS AND CONCLUSION: Compared with the control group, the content of hydroxyproline in cartilage in the low-dose and high-dose pilose antler groups was significantly increased, and the content in the high-dose pilose antler group was significantly higher than that in the low-dose pilose antler group (P < 0.05). The order of mRNA expression level of ADAMTS-4 was as follows: high-dose pilose antler group < low-dose pilose antler group < control group (P < 0.05). The order of mRNA expression levels of metallopeptidase inhibitor 3, aggrecan and collagen type II was as follows: high-dose pilose antler group > low-dose pilose antler group > control group (P < 0.05). The expression levels of aggrecan and collagen type II were the highest in the high-dose pilose antler group, followed by the low-dose pilose antler group, and the lowest in the control group (P < 0.05). Our findings indicate that pilose antler can repair the injured cartilage by inhibiting the secretion of ADAMTS-4, increasing the secretion of metallopeptidase inhibitor 3 and preventing the degradation of aggrecan and collagen type II.

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程

Key words: Drugs, Chinese Herbal, Osteoarthritis, Extracellular Matrix, Cartilage, Tissue Engineering

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