中国组织工程研究

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持续被动运动条件下骨关节炎软骨细胞Erk活性及增殖

穆耶赛尔•麦麦提尼亚孜,胡  毅,任云萍,张  勇,熊道海   

  1. 新疆医科大学第五附属医院,新疆维吾尔自治区乌鲁木齐市   830011
  • 收稿日期:2016-07-24 出版日期:2016-10-14 发布日期:2016-10-14
  • 通讯作者: 熊道海,硕士,主任医师,新疆医科大学第五附属医院,新疆维吾尔自治区乌鲁木齐市 830011
  • 作者简介:穆耶赛尔?麦麦提尼亚孜,女,1989年生,新疆医科大学在读硕士,主要从事骨与关节康复、疼痛康复的研究。
  • 基金资助:

    新疆维吾尔自治区自然科学基金资助项目(2013211A060)

Erk activation and proliferation in osteoarthritc chondrocytes after continuous passive motion

Muyesaier•Maimaitiniyazi, Hu Yi, Ren Yun-ping, Zhang Yong, Xiong Dao-hai   

  1. the Affiliated Fifth Hospital of Xinjiang Medical University, Urumqi 830011, Xinjiang Uygur Autonomous Region, China
  • Received:2016-07-24 Online:2016-10-14 Published:2016-10-14
  • Contact: Xiong Dao-hai, Master, Chief physician, the Affiliated Fifth Hospital of Xinjiang Medical University, Urumqi 830011, Xinjiang Uygur Autonomous Region, China
  • About author:Muyesaier?Maimaitiniyazi, Studying for master’s degree, the Affiliated Fifth Hospital of Xinjiang Medical University, Urumqi 830011, Xinjiang Uygur Autonomous Region, China
  • Supported by:

    the Natural Science Foundation of Xinjiang Uygur Autonomous Region, No. 2013211A060

摘要:

文章快速阅读:

文题释义:
细胞外信号调节激酶1/2(extracellular-signal regulated kinase 1/2,Erkl/2):是MAPK家族成员之一。细胞在接受外源的神经递质和生长因子等信号刺激后,可激活细胞内的Erkl/2信号通路,活化的Erkl/2随即进入细胞核,激活转录因子的表达,参与细胞的增殖和分化。
连续被动运动仪(continuous passive motion,简称CPM):广泛应用于骨伤及骨关节术后的治疗和康复,是现代骨科和康复科的必备仪器;通过连续被动运动仪使关节按照预先设定好的角度和速度,进行持续的被动运动;主要用于防治制动引起的关节挛缩,促进关节软骨、韧带和肌腱的修复,改善局部血液淋巴循环,促进肿胀、疼痛等症状的消除,使关节活动角度尽可能恢复到或超过损伤前的程度,最终使肢体功能的恢复更早、更完善;由于连续被动运动仪的早期介入使用可以使术后康复起到事半功倍的效果。
摘要
背景:
目前临床上对持续被动运动是否可通过改善软骨细胞的增殖能力而改善骨关节炎病情研究报道较少。
目的:分析持续被动运动对兔骨关节炎的治疗作用及相关机制。
方法:36只新西兰大白兔随机分为3组,每组12只。对照组兔子仅手术切开关节囊而不损伤关节软骨;模型组和治疗组采用Hulth方法建立骨关节炎模型。治疗组兔子在后第1天即开始进行持续被动运动治疗,8 h/d,连续8周。ELISA方法检测关节液白细胞介素1和肿瘤坏死因子含量;RT-PCR方法检测软骨细胞Ⅱ型胶原表达情况;MTT方法检测软骨细胞增殖能力;Western blot方法检测软骨细胞Erk信号通路活化情况。
结果与结论:①模型组关节液中白细胞介素1和肿瘤坏死因子α含量显著升高,软骨细胞Ⅱ型胶原的mRNA表达水平出现显著下调,给予持续被动运动治疗后,关节液中白细胞介素1和肿瘤坏死因子α含量显著降低(P < 0.01),同时软骨细胞Ⅱ型胶原的mRNA表达水平出现显著上调(P < 0.01);②模型组软骨细胞增殖能力显著降低,而治疗组软骨细胞增殖能力显著升高(P < 0.01);③模型组软骨细胞Erk信号通路活化情况出现显著下调(P < 0.01),给予持续被动运动治疗后软骨细胞Erk信号通路活化情况水平出现显著上调(P < 0.01)。提示持续被动运动可通过影响关节液中白细胞介素1和肿瘤坏死因子α水平、软骨细胞Ⅱ型胶原表达情况及软骨细胞增殖能力而改善骨关节炎病情,其机制可能与调节Erk信号通路活化情况相关。

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: 0000-0001-8160-0603(穆耶赛尔•麦麦提尼亚孜)

关键词: 组织构建, 软骨细胞, 持续被动运动, 骨关节炎, 增殖, 信号通路, 新疆维吾尔自治区自然科学基金

Abstract:

BACKGROUND: Whether continuous passive motion improves osteoarthritis by enhancing the proliferation ability of chondrocytes is rarely reported.
OBJECTIVE: To analyze the therapeutic outcomes of continuous passive motion in rabbits with osteoarthritis and the underlying mechanism.
METHODS: Thirty-six New Zealand white rabbits were randomly allotted into three groups (n=12 per group). Rabbits in control group only underwent capsulotomy with no harm to the cartilage; osteoarthritis models were established in the rabbits of model and treatment groups using Hulth method. At 1 day after modeling, the treatment group rabbits were treated with continuous passive motion, 8 hours daily for consecutive 8 weeks. Interleukin-1 and tumor necrosis factor α levels in the synovial fluid were detected by ELISA; collagen type II expression and the proliferation ability of chondrocytes were detected by MTT assay; Erk signaling pathway activation was determined using western blot assay.
RESULTS AND CONCLUSION: In the model group, interleukin-1 and tumor necrosis factor α levels in the synovial fluid were significantly increased, and the expression level of collagen type II mRNA was remarkablely down-regulated. Continuous passive motion significantly downregulated interleukin-1 and tumor necrosis factor α levels and up-regulated the collagen type II mRNA level (P < 0.01). The model group showed significantly decreased proliferation ability of chondrocytes and down-regulated Erk signaling pathway activation, while after continuous passive motion, all above indicators were significantly improved (P < 0.01). These results indicate that the continuous passive motion can alleviate osteoarthritis probably by influencing interleukin-1 and tumor necrosis factor α levels, proliferation ability of chondrocytes, and collagen type II expression, as well as regulating Erk signaling pathway activation.

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: Motion Therapy, Continuous Passive, Osteoarthritis, Chondrocytes, Signal Tansduction, Tissue Engineering

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