中国组织工程研究 ›› 2024, Vol. 28 ›› Issue (4): 516-521.doi: 10.12307/2024.226

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

白细胞介素1β诱导大鼠骨性关节炎软骨细胞模型的效果评价

乔虎军1,2,王国祥1   

  1. 1苏州大学体育学院,江苏省苏州市  215021;2 长治学院,山西省长治市  046000
  • 收稿日期:2023-01-03 接受日期:2023-02-24 出版日期:2024-02-08 发布日期:2023-07-13
  • 通讯作者: 王国祥,教授,博士生导师,苏州大学体育学院,江苏省苏州市 215021
  • 作者简介:乔虎军,男,1986年生,山西省临汾市人,汉族,2021年苏州大学毕业,博士,讲师,主要从事运动对骨性关节炎影响的生物学机制研究。
  • 基金资助:
    江苏省研究生科研与实践创新计划项目(KYCX18-2485),项目负责人:乔虎军

Evaluation of rat osteoarthritis chondrocyte models induced by interleukin-1beta

Qiao Hujun1, 2, Wang Guoxiang1   

  1. 1School of Physical Education, Soochow University, Suzhou 215021, Jiangsu Province, China; 2Changzhi University, Changzhi 046000, Shanxi Province, China
  • Received:2023-01-03 Accepted:2023-02-24 Online:2024-02-08 Published:2023-07-13
  • Contact: Wang Guoxiang, Professor, Doctoral supervisor, School of Physical Education, Soochow University, Suzhou 215021, Jiangsu Province, China
  • About author:Qiao Hujun, MD, Lecturer, School of Physical Education, Soochow University, Suzhou 215021, Jiangsu Province, China; Changzhi University, Changzhi 046000, Shanxi Province, China
  • Supported by:
    Postgraduate Research & Practice Innovation Program of Jiangsu Province, No. KYCX18-2485 (to QHJ)

摘要:


文题释义:

骨性关节炎:是一种以关节组织成分、结构和功能退行性改变为特征的慢性关节疾病,主要累及滑膜、软骨和软骨下骨等组织。骨性关节炎的发生和发展是年龄、肥胖、遗传和创伤等多种因素相互作用的结果。
软骨细胞:作为软骨中唯一的细胞类型,软骨细胞位于软骨陷窝内,调节软骨基质的合成和降解,以应对关节内化学或机械环境的变化。软骨细胞数量减少或功能减弱都可能对关节软骨产生重大影响。体外研究中,常采用炎性因子诱导软骨细胞凋亡和炎症反应,模拟骨性关节炎软骨细胞环境。


背景:建立骨性关节炎软骨细胞模型,对进一步解释骨性关节炎的病理过程,评估和筛选骨性关节炎治疗药物具有重要意义。

目的:评价白细胞介素1β诱导大鼠骨性关节炎软骨细胞模型的效果,为进一步探索药物治疗骨性关节炎提供参考。
方法:取3周龄SD大鼠髋关节软骨,机械剪切和酶消化分离软骨细胞并进行鉴定。软骨细胞随机分为3组:对照组、5 ng/mL和10 ng/mL 白细胞介素1β组,分别诱导24 h和48 h。MTT法检测软骨细胞的增殖活力;Real-Time PCR检测Ⅱ型胶原蛋白、蛋白聚糖、性别决定区Y框蛋白9、基质金属蛋白酶13、解聚蛋白样金属蛋白酶5 mRNA表达;Western blot检测Ⅱ型胶原蛋白、性别决定区Y框蛋白9、基质金属蛋白酶13、解聚蛋白样金属蛋白酶5蛋白表达。
结果与结论:①成功分离并培养原代大鼠软骨细胞;②10 ng/mL白细胞介素1β诱导软骨细胞24 h可使细胞增殖活力显著下降(P < 0.05),

5 ng/mL 白细胞介素1β组则需诱导48 h;③Real-Time PCR结果显示,同对照组相比,5 ng/mL和10 ng/mL白细胞介素1β诱导软骨细胞24,48 h,Ⅱ型胶原蛋白、蛋白聚糖、性别决定区Y框蛋白9 mRNA表达水平均显著降低(P < 0.05),基质金属蛋白酶13、解聚蛋白样金属蛋白酶5 mRNA表达水平均显著增加(P < 0.05);相比10 ng/mL组,5 ng/mL白细胞介素1β诱导软骨细胞48 h可显著增加基质金属蛋白酶13、解聚蛋白样金属蛋白酶5 mRNA表达(P < 0.05);④Western blot 结果显示,相比对照组,10 ng/mL白细胞介素1β诱导软骨细胞24 h,Ⅱ型胶原蛋白、性别决定区Y框蛋白9蛋白水平显著下降(P < 0.05),基质金属蛋白酶13、解聚蛋白样金属蛋白酶5蛋白水平显著增加(P < 0.05);5 ng/mL白细胞介素1β诱导软骨细胞48 h,Ⅱ型胶原蛋白、性别决定区Y框蛋白9蛋白水平显著下降(P < 0.05),基质金属蛋白酶13、解聚蛋白样金属蛋白酶5蛋白水平显著增加(P < 0.05);⑤提示干预24 h后10 ng/mL 白细胞介素1β对软骨细胞的诱导效果可能更明显;干预48 h后5 ng/mL和10 ng/mL白细胞介素1β的诱导效果相似。

https://orcid.org/0000-0001-8508-7755(乔虎军) 

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

关键词: 骨性关节炎, 软骨细胞, 白细胞介素1β, 大鼠, 细胞活力

Abstract: BACKGROUND: Establishing a chondrocyte model of osteoarthritis is of great significance for further explaining the pathological process of osteoarthritis and evaluating and screening the therapeutic drugs of osteoarthritis.
OBJECTIVE: To evaluate the effect of interleukin-1β to induce osteoarthritis models in rat chondrocyte models, thereby providing a reference for further exploration of drug treatment of osteoarthritis.
METHODS: Chondrocytes were isolated from the hip cartilage of 3-week-old Sprague-Dawley rats by mechanical shearing and enzymatic digestion, and then identified. Chondrocytes were randomly divided into three groups: control group, 5 ng/mL interleukin-1β-induced group, 10 ng/mL interleukin-1β-induced group, with induction times of 24 and 48 hours. Chondrocyte proliferation activity was detected by MTT. Real-Time PCR was used to detect the expression of type II collagen, Aggrecan, sex-determining region Y-box protein 9 (Sox9), matrix metalloproteinase 13, and a disintegrin and metaloproteinase with thrombospondin-like motifs-5 (Adamts5) mRNA. Western blot was used to detect the expression of type II collagen, Sox9, matrix metalloproteinase 13 and Adamts5.
RESULTS AND CONCLUSION: Primary rat chondrocytes were successfully isolated and cultured. Induction of chondrocytes by interleukin-1β at 10 ng/mL for 24 hours could significantly reduce cell proliferation and viability (P < 0.05), while the 5 ng/mL interleukin-1β-induced group required 48 hours of induction to cause a significant decrease in cell proliferation and viability. Real-Time PCR results showed that compared with the control group, 5 or 10 ng/mL interleukin-1β induction for 24 and 48 hours significantly reduced the expression levels of type II collagen, Aggrecan, Sox9 mRNAs (P < 0.05) and increased the expression levels of matrix metalloproteinase 13 and Adamts5 mRNAs (P < 0.05). Compared with the 10 ng/mL interleukin-1β-induced group, 5 ng/mL interleukin-1β induction significantly increased the mRNA expression of matrix metalloproteinase 13 and Adamts5 in chondrocytes after 48 hours of induction (P < 0.05). Western blot results showed that compared with the control group, 10 ng/mL interleukin-1β induction for 24 hours and 5 ng/mL interleukin-1β induction for 48 hours significantly decreased the protein expression of type II collagen and Sox9 in chondrocytes (P < 0.05), and significantly increased the protein expression of matrix metalloproteinase 13 and Adamts5 (P < 0.05 ). To conclude, compared with 5 ng/mL interleukin-1β, 10 ng/mL interleukin-1β may have more obvious effects on chondrocytes for 24 hours, while 5 and 10 ng/mL interleukin-1β have similar effects after 48 hours of intervention.

Key words: osteoarthritis, chondrocyte, Interleukin-1β, rat, cell viability

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