中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (32): 5163-5168.doi: 10.3969/j.issn.2095-4344.0368

• 组织构建实验造模 experimental modeling in tissue construction • 上一篇    下一篇

甲氨蝶呤联合双氯芬酸钠治疗关节炎模型大鼠的微环境变化

牛梓晗1,冉新建2,麦伍拉尼•马木提1,潘传鹏1,何东航3,任聪改3,徐  琦4   

  1. 新疆医科大学,1临床医学院,2基础医学院机能中心,           3基础医学院,4基础医学院免疫学教研室,新疆维吾尔自治区乌鲁木齐市   830011
  • 收稿日期:2018-04-19 出版日期:2018-11-18 发布日期:2018-11-18
  • 通讯作者: 徐琦,博士,教授,研究生导师,新疆医科大学基础医学院免疫学教研室,新疆维吾尔自治区乌鲁木齐市 830011
  • 作者简介:牛梓晗,女,1996年生,新疆维吾尔自治区乌鲁木齐市人,汉族,新疆医科大学临床医学在读本科。
  • 基金资助:

    国家级大学生创新性实验计划重点项目(CX 201610760022)

Changes of microenvironment in a rat model of arthritis treated by the combination of methotrexate and diclofenac sodium

Niu Zi-han1, Ran Xin-jian2, Mawlan•Mamut1, Pan Chuan-peng1, He Dong-hang3, Ren Cong-gai3, Xu Qi4   

  1. 1School of Clinical Medicine, 2Laboratory Center of Mechanism, 3School of Basic Medicine, 4Department of Immunolgy, School of Basic Medicine, Xinjiang Medical University, Urumqi 830011, Xinjiang Uygur Autonomous Region, China
  • Received:2018-04-19 Online:2018-11-18 Published:2018-11-18
  • Contact: Xu Qi, MD, Professor, Master’s supervisor, Department of Immunolgy, School of Basic Medicine, Xinjiang Medical University, Urumqi 830011, Xinjiang Uygur Autonomous Region, China
  • About author:Niu Zi-han, School of Clinical Medicine, Xinjiang Medical University, Urumqi 830011, Xinjiang Uygur Autonomous Region, China
  • Supported by:

    the National Key Project of College Student Innovative Research Program, No. CX 201610760022

摘要:

文章快速阅读:

文题释义:
胶原诱导性关节炎:研究类风湿关节炎较为常用和理想的动物模型,通过皮内注射用佐剂乳化的Ⅱ型胶原诱导激发一种攻击自身关节的免疫炎症反应,其中T细胞激活、细胞因子的分泌和Ⅱ型胶原抗体等产生是胶原诱导性关节炎发病的重要环节,主要的临床表现为多发性的末端关节炎。
Th17/Treg细胞平衡:新近发现Th17/Treg细胞平衡对类风湿关节炎的发病机制起重要作用。以此建立胶原诱导性关节炎模型,从炎性细胞因子、T淋巴细胞亚群平衡与细胞特异性转录因子角度,认识甲氨蝶呤联合双氯芬酸钠治疗类风湿关节炎的作用机制。
摘要
背景
:类风湿关节炎是以小关节疼痛肿胀及晨僵为主要临床表现的自身免疫性疾病,目前药物治疗主要通过非类固醇抗炎药联合使用改善病情抗风湿药物,但其药物对T细胞亚群平衡的影响及其机制目前尚不清楚。
目的:探讨甲氨蝶呤联合双氯芬酸钠治疗胶原诱导性关节炎(CIA)大鼠对Th17/Treg细胞平衡的影响及其作用机制。
方法:建立雄性Wistar大鼠胶原诱导性关节炎模型,随机分为空白组、模型组、甲氨蝶呤组、双氯芬酸钠组、甲氨蝶呤联合双氯芬酸钠组(联合用药组)、阳性对照组。通过每周评定关节炎指数、测量足趾肿胀程度判断造模成功。药物治疗4周后取材,酶联免疫吸附实验检测外周血中白细胞介素10、转化生长因子β等细胞因子表达情况;流式细胞术检测脾脏Th17及Treg细胞的比例变化情况;RT-PCR法分别检测脾脏中Th17、Treg细胞的转录因子ROR-γt及Foxp3的mRNA表达。
结果与结论:①药物治疗后,甲氨蝶呤组、双氯芬酸钠组、联合用药组与模型组比较,各治疗组均可改善大鼠一般状况及足趾肿胀程度、降低关节炎指数评分、减少炎症细胞浸润、抑制转录因子ROR-γt调控Th17细胞分化、调控转录因子Foxp3诱导CD4+CD25+Foxp3+Treg高分化,从而恢复Treg/Th17比例平衡,改善胶原诱导性关节炎大鼠关节炎症状,各组间平均灰度值差异有显著性意义(P < 0.05);②联合组关节炎指数下降趋势更明显,且关节炎症状轻于其他造模组;双氯芬酸钠组能上调模型组大鼠外周血白细胞介素10、白细胞介素6表达,甲氨蝶呤组下调转化生长因子β水平占优势,联合用药组能显著上调模型组血清白细胞介素6、白细胞介素10水平,下调转化生长因子β表达;联合用药组能有效上调模型组Treg/Th17比例,显著抑制转录因子Foxp3及ROR-γt表达;③结果提示甲氨蝶呤联合双氯芬酸钠治疗具有协同效应,为治疗类风湿关节炎提供理论基础。

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: 0000-0003-2361-1421(牛梓晗)

关键词: 胶原诱导性关节炎, 甲氨蝶呤, 双氯芬酸钠, 调节性T细胞, Th17细胞, 组织构建

Abstract:

BACKGROUND: Rheumatoid arthritis is an autoimmune disorder that typically results in swollen and painful facet joints and morning stiffness. Its drug therapy is mainly the combination of non-steroidal anti-inflammatory drugs and anti-rheumatic drugs, however, the drug effects on the T-lymphocyte subset balance and the underlying mechanism remain unclear.
OBJECTIVE: To explore the effect of the combination of methotrexate and diclofenac sodium on the balance of Th17/Treg cells in a rat model of collagen-induced arthritis.
METHODS: After the male Wistar rat model of collagen-induced arthritis model was established, they were randomly divided into blank control, model, methotrexate, diclofenac sodium, methotrexate + diclofenac sodium, and positive control groups. They were assessed by measuring the arthritis index and toe swelling degree. After 4-week treatment, the expression levels of interleukin 10 and transforming growth factor β in the peripheral blood was detected by ELISA, and the change in Th17/Treg cells in the spleen was tested by flow cytometry; the mRNA expression levels of Foxp3 and ROR-γt in the spleen were examined by RT-PCR.
RESULTS AND CONCLUSION: Compared with the model group, methotrexate, diclofenac sodium, and their combination could improve the general condition, reduce toes swelling degree, lower arthritis index (especially the methotrexate + diclofenac sodium group), reduce inflammation cell infiltration, and inhibit ROR-γt regulating Th17 cell differentiation and regulating the Foxp3-induced high differentiation of CD4+CD25+Foxp3+Tre, thereby restoring Treg/Th17 cell balance and improving the arthritis symptoms. The average gray value was significantly different among groups (P < 0.05). Except the down-regulation of interleukin 10 and interleukin 6 levels like diclofenac sodium, the combined therapy could down-regulate the expression level of transforming growth factor β, increase the Treg/Th17 cell proportion, and inhibit the expression of Foxp3 and ROR-γt. Additionally, methotrexate significantly reduced the expression level of transforming growth factor β. In summary, the combination of methotrexate and diclofenac sodium possesses a synergistic effect, which provides the theoretical foundation for the treatment of rheumatoid arthritis.

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: Arthritis, Methotrexate, Th17 Cells, T-Lymphocytes, Cytokines, Tissue Engineering

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