中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (14): 2150-2154.doi: 10.12307/2022.475

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

C-X-C趋化因子受体4拮抗剂延缓豚鼠关节软骨的退变

何  璐,李彦林,蒙旭晗,王国梁,杨腾云,廖欣宇,周晓翔,杨  光   

  1. 昆明医科大学第一附属医院运动医学科,云南省昆明市   650032
  • 收稿日期:2021-03-02 修回日期:2021-03-10 接受日期:2021-04-15 出版日期:2022-05-18 发布日期:2021-12-21
  • 通讯作者: 李彦林,博士,教授,博士生导师,昆明医科大学第一附属医院,云南省昆明市 650032
  • 作者简介:何璐,男,1993年生,河南省周口市人,汉族,昆明医科大学在读硕士,主要从事骨与骨关节损伤的修复与重建研究。
  • 基金资助:
    国家自然科学基金资助项目(81760403,81960409),项目负责人:李彦林;云南省医学领军人才项目(L-201601),项目负责人:李彦林;云南省陈世益专家工作站项目(2018IC102),项目负责人:李彦林;云南省骨关节疾病临床医学中心项目(ZX2019-03-04),项目负责人:李彦林

C-X-C chemokine receptor type 4 antagonist delays the degeneration of articular cartilage in guinea pigs

He Lu, Li Yanlin, Meng Xuhan, Wang Guoliang, Yang Tengyun, Liao Xinyu, Zhou Xiaoxiang, Yang Guang   

  1. Department of Sports Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan Province, China
  • Received:2021-03-02 Revised:2021-03-10 Accepted:2021-04-15 Online:2022-05-18 Published:2021-12-21
  • Contact: Li Yanlin, MD, Professor, Doctoral supervisor, Department of Sports Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan Province, China
  • About author:He Lu, Master candidate, Department of Sports Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan Province, China
  • Supported by:
    the National Natural Science Foundation of China, No. 81760403 and 81960409 (to LYL); Yunnan Provincial Medical Leading Talents Project, No. L-201601 (to LYL); Chen Shiyi Expert Workstation Project in Yunnan Province, No. 2018IC102 (to LYL); Yunnan Provincial Bone and Joint Disease Clinical Medicine Center Project, No. ZX2019-03-04 (to LYL) 

摘要:

文题释义:
基质细胞衍生因子1/C-X-C趋化因子受体4:C-X-C趋化因子受体4是基质细胞衍生因子1的特异性受体。在骨关节炎的发生发展中,滑膜产生基质细胞衍生因子1,其C-X-C趋化因子受体4优先在关节软骨细胞中表达,基质细胞衍生因子1和C-X-C趋化因子受体4之间存在互补的表达模式,二者结合后可以激活细胞外信号调节酶(Erk)和相关激酶(p38 MAP激酶)信号通路,并诱导软骨细胞释放炎症因子和基质金属蛋白酶,调节骨性关节炎软骨细胞的分解代谢,导致细胞外基质降解。
C-X-C趋化因子受体4拮抗剂:C-X-C趋化因子受体4是一种位于软骨细胞表面的G蛋白偶联受体,其通过与基质细胞衍生因子1结合诱导基质金属蛋白酶从细胞外基质释放,从而加剧骨关节炎。C-X-C趋化因子受体4拮抗剂可以增强免疫细胞的细胞毒活性,具有高水平的抗人类免疫缺陷病毒(HIV)活性作用,常见的有TN14003、T140、AMD3100等,其可以通过抑制骨关节炎滑膜细胞和滑液中基质细胞衍生因子水平,阻断基质细胞衍生因子1/C-X-C趋化因子受体4信号通路,减少关节软骨细胞中基质金属蛋白酶9和基质金属蛋白酶13的释放,从而减轻软骨退变。

背景:近年来研究表明基质细胞衍生因子1/C-X-C趋化因子受体4信号通路在骨关节炎的发生发展中起重要作用。
目的:探讨不同C-X-C趋化因子受体4拮抗剂在体内对关节软骨退变的作用。
方法:选取96只6月龄雄性Hartley豚鼠随机分成4组,TN14003治疗组、T140治疗组、AMD3100治疗组、空白对照组,每组24只。除空白对照组不做任何处理外,其余治疗组均使用Alzet微量泵直接植入并固定于豚鼠背部皮下,每天以180 mg/L的质量浓度泵入TN14003、T140、AMD3100药物,干预12周后,取膝关节软骨行苏木精-伊红染色、番红-固绿染色、改良Mankin组织学评分;免疫组织化学检测白细胞介素1和肿瘤坏死因子α的表达水平。
结果与结论:①苏木精-伊红染色、番红-固绿染色显示:TN14003治疗组显著延缓了软骨退变程度,Mankin评分最高;T140治疗组次之,AMD3100治疗组较差,空白对照组最差;各组Mankin评分差异有显著性意义(P < 0.05);②免疫组织化学染色分析显示:各治疗组关节软骨组织中白细胞介素1和肿瘤坏死因子α阳性表达均低于空白对照组,其中以TN14003治疗组最少(P < 0.05);③结果表明,3种C-X-C趋化因子受体4拮抗剂均可通过阻断基质细胞衍生因子1/C-X-C趋化因子受体4信号通路,降低白细胞介素1和肿瘤坏死因子α的表达水平,延缓软骨退变,其中TN14003治疗组效果最优。
缩略语:基质细胞衍生因子1:stromal cell-derived factor-1,SDF-1;C-X-C趋化因子受体4:C-X-C chemokine receptor type 4,CXCR4

https://orcid.org/0000-0001-6207-1996 (何璐) 

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: 骨关节炎, SDF-1, CXCR4, 信号通路, CXCR4受体拮抗剂, 软骨退变, 豚鼠

Abstract: BACKGROUND: Studies have shown that the stromal cell-derived factor 1/C-X-C chemokine receptor type 4 signaling pathway plays an important role in the occurrence and development of osteoarthritis.
OBJECTIVE: To explore the effect of C-X-C chemokine receptor type 4 antagonist on the degeneration of articular cartilage in vivo.
METHODS: Ninety-six 6-month-old male Hartley guinea pigs were randomly divided into four groups, namely, TN14003 treatment, T140 treatment, AMD3100 treatment group, and blank control group (n=24 per group). Except for the blank control group without any treatment, in the rest three groups, Alzet micro-pumps were directly implanted and fixed under the skin of the back of the guinea pigs, followed by daily injection of TN14003, T140, and AMD3100 drugs at a concentration of 180 mg/L, respectively. After 12 weeks of interventions, the articular cartilage of the knee joint was taken out from guinea pigs for hematoxylin-eosin staining, Safranin-fast green staining, and modified Mankin histological scoring. Immunohistochemical staining was used to detect the expression levels of interleukin-1 and tumor necrosis factor-α.
RESULTS AND CONCLUSION: Hematoxylin-eosin staining and Safranin-fast green staining showed that the degree of cartilage degeneration in the TN14003 treatment group was significantly delayed, with the highest Mankin score, followed by T140 treatment group, AMD3100 group and blank control group in turn. There were significant differences in the Mankin scores between the experimental groups (P < 0.05). The results of immunohistochemical staining analysis showed that the positive expression of interleukin-1 and tumor necrosis factor-α in each experimental group was lower than that of the blank control group, among which the expression was lowest in the TN14003 treatment group (P < 0.05). To conclude, these three kinds of C-X-C chemokine receptor type 4 antagonists can all block the stromal cell-derived factor 1/C-X-C chemokine receptor type 4 signaling pathway in vivo, reduce the expression levels of interleukin-1 and tumor necrosis factor-α, and delay cartilage degeneration, among which TN14003 has the best effects.

Key words: osteoarthritis, stromal cell-derived factor 1, C-X-C chemokine receptor type 4, signaling pathway, C-X-C chemokine receptor 4 antagonist, cartilage degeneration, guinea pig

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