中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (18): 2807-2813.doi: 10.3969/j.issn.2095-4344.2015.18.004

• 器官移植动物模型 organ transplantation and animal model • 上一篇    下一篇

类风湿关节炎模型大鼠滑膜组织中证实有髓样细胞诱发受体2的表达

叶  培1,李建华2,许锦煌3,黄生辉1,刘贵旺1,张玮琼3,郑沛中3,黄建荣1,3   

  1. 1中山大学孙逸仙纪念医院骨科,广东省广州市  510120;2广州医科大学生理学教研室,广东省广州市  510182;3增城市人民医院骨科,广东省广州市  511300
  • 收稿日期:2015-03-16 出版日期:2015-04-30 发布日期:2015-04-30
  • 通讯作者: 黄建荣,博士,副教授,硕士生导师,中山大学孙逸仙纪念医院骨科,广东省广州市 510120
  • 作者简介:叶培,男,1987年生,江西省赣州市人,汉族,中山大学孙逸仙纪念医院在读硕士,主要从事关节损伤修复与组织工程学研究。
  • 基金资助:

    广东省科技基金(2010B031600184);广州市科技和信息化局重点项目基金(11C31120789);广东省自然科学基金(S2012010010629,S2013010013768)

Triggering receptor expressed on myeloid cells 2 in synovial tissue of rheumatoid arthritis rats

Ye Pei1, Li Jian-hua2, Xu Jin-huang3, Huang Sheng-hui1, Liu Gui-wang1, Zhang Wei-qiong3, Zheng Pei-zhong3, Huang Jian-rong1, 3   

  1. 1Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, Guangdong Province, China; 2Department of Physiology, Gugangzhou Medical University, Guangzhou 510182, Guangdong Province, China; 3Department of Orthopedics, Zengcheng People’s Hospital, Guangzhou 511300, Guangdong Province, China
  • Received:2015-03-16 Online:2015-04-30 Published:2015-04-30
  • Contact: Huang Jian-rong, M.D., Associate professor, Master’s supervisor, Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, Guangdong Province, China; Department of Orthopedics, Zengcheng People’s Hospital, Guangzhou 511300, Guangdong Province, China
  • About author:Ye Pei, Studying for master’s degree, Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, Guangdong Province, China
  • Supported by:

    Science and Technology Foundation of Guangdong Province, No. 2010B031600184; Key Program of Science and Technology Bureau of Guangzhou, No. 11C31120789; the Natural Science Foundation of Guangdong Province, No. S2012010010629, S2013010013768

摘要:

背景:髓样细胞诱发受体2在类风湿关节炎活动期患者滑膜组织呈高表达,但其在类风湿关节炎发病机制中发挥的作用,目前并不清楚。
目的:观察髓样细胞诱发受体2在牛源性Ⅱ型胶原诱导的关节炎大鼠模型滑膜组织中的表达。
方法:制备胶原诱导关节炎模型大鼠,动态观察大鼠各项关节炎的活动指标和滑膜组织的病理学改变,RT-PCR法检测滑膜组织中髓样细胞诱发受体2、肿瘤坏死因子α、白细胞介素1β、白细胞介素10 mRNA的表达,Western blot及免疫组织化学法分别检测关节滑膜组织中髓样细胞诱发受体2的蛋白表达及定位。
结果与结论:模型组大鼠免疫13 d后出现足爪红肿,关节炎指数评分逐渐升高(P < 0.01),炎症高峰期在19-25 d,苏木精-伊红染色可见诱导性关节炎大鼠滑膜组织增生及炎性细胞浸润、软骨骨质破坏。与对照组相比,模型组大鼠关节滑膜髓样细胞诱发受体2的mRNA和蛋白的表达、肿瘤坏死因子α、白细胞介素1β mRNA表达均明显升高(P < 0.05或P < 0.01),白细胞介素10 mRNA表达显著降低(P < 0.05)。结果证实,髓样细胞诱发受体2可能是类风湿关节炎模型大鼠发病过程中一个重要的炎症调节递质,其反应性升高在类风湿关节炎模型大鼠发病中发挥着重要作用。



中国组织工程研究
杂志出版内容重点:肾移植肝移植移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植组织工程


全文链接:

关键词: 实验动物, 骨及关节损伤模型, 髓样细胞诱发受体2, 类风湿关节炎, 胶原性关节炎, 滑膜组织, 炎症, 肿瘤坏死因子α, 白细胞介素1β, 白细胞介素10, 大鼠, 广东省自然科学基金

Abstract:

BACKGROUND: Triggering receptor expressed on myeloid cells 2 (TREM-2) is highly expressed throughout the synovial tissue in active rheumatoid arthritis patients, but the role of TREM-2 in the pathogenesis of rheumatoid arthritis still remains unclear.
OBJECTIVE: To explore the TREM-2 expression in the synovial tissue of collagen type II-induced arthritis rats.
METHODS: The collagen-induced arthritis models were established in rats. The activity indicators and pathological changes of arthritis synovial were dynamically observed. The mRNA levels of TREM-2, tumor necrosis factor-α, interleukin-1β, and interleukin-10 were detected in synovial tissue of rats by RT-PCR. The protein expression and location of TREM-2 were measured with western blot assay and immunohistochemistry, respectively.
RESULTS AND CONCLUSION: At day 13 after immunization, the paws of model rats appeared red and swelling, the arthritis index scores were increased (P < 0.01). At day 19-25 after immunization, the inflammation reached the peak. Hematoxylin-eosin staining showed that, the synovium of collagen-induced arthritis rats were proliferated and were infiltrated by inflammatory cells, cartilage was destroyed. Compared with the control group, the expression of TREM-2 mRNA and protein, the mRNA levels of tumor necrosis factor-α and interleukin-1β in synovial tissue of the model rats were significantly increased (P < 0.05 or P < 0.01), while interleukin-10 mRNA expression was significantly decreased
(P < 0.05). Experimental findings indicate that, TREM-2 is a crucial inflammatory regulator and the increasing expression of TREM-2 plays an important role in the pathogenesis of collagen-induced arthritis.



中国组织工程研究
杂志出版内容重点:肾移植肝移植移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植组织工程


全文链接:

Key words: Tissue Engineering, Arthritis, Rheumatoid, Arthritis, Experimental, Synovial Membrane, Cytokines

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