中国组织工程研究 ›› 2020, Vol. 24 ›› Issue (17): 2636-2641.doi: 10.3969/j.issn.2095-4344.2672

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

青蒿琥酯改善软骨下骨破骨细胞介导的骨关节炎疼痛

沙力塔娜提·乌尔曼别克1,李亦丞1,任姜栋1,马海蓉2,穆文博1,曹  力3   

  1. 新疆医科大学第一附属医院,1关节外科,2临床研究院,3骨科中心,新疆维吾尔自治区乌鲁木齐市  830054

  • 收稿日期:2019-10-08 修回日期:2019-10-10 接受日期:2019-11-25 出版日期:2020-06-18 发布日期:2020-03-28
  • 通讯作者: 曹力,主任医师,教授,新疆医科大学第一附属医院骨科中心,新疆维吾尔自治区乌鲁木齐市 830054
  • 作者简介:沙力塔娜提•乌尔曼别克,女,1985年生,新疆维吾尔自治区阿勒泰地区吉木乃县人,哈萨克族,新疆医科大学在读硕士,主要从事骨与关节疾病研究。
  • 基金资助:
    国家自然科学基金联合基金重大专项(U1503221);国家自然科学基金地区基金项目(81860746)

Artesunate relieves subchondral bone osteoclast-mediated osteoarthritis pain

Shalitanati·Wuermanbieke1, Li Yicheng1, Ren Jiangdong1, Ma Hairong2, Mu Wenbo1, Cao Li3   

  1. 1Department of Joint Surgery, 2Clinical Medical School, 3Department of Orthopedics, First Affiliated Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • Received:2019-10-08 Revised:2019-10-10 Accepted:2019-11-25 Online:2020-06-18 Published:2020-03-28
  • Contact: Cao Li, Chief physician, Professor, Department of Joint Surgery, First Affiliated Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • About author:Shalitanati•Wuermanbieke, Master candidate, Department of Joint Surgery, First Affiliated Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • Supported by:
    the Joint Fund of the National Natural Science Foundation of China (Major Program), No. U1503221; the Regional Fund of the National Natural Science Foundation of China, No. 81860746

摘要:

文题释义:

Netrin-1:发育中的轴突表现出朝向或远离外部引导线索的方向性偏向生长,Netrin-1是在脊椎动物中发现的第一个轴突导向分子,在4种经典的轴突导向家族蛋白(Netrins、Slits、Ephrins和Semaphorins)中,Netrin-1具有最强的化学引诱能力来促进轴突延伸,其对轴突导向、细胞迁移、形态发生和血管生成具有很强的趋化功能。

降钙素基因相关肽:是37个氨基酸神经肽,在外周和中枢神经系统中具有多种生物学功能,降钙素基因相关肽广泛分布于周围和中枢神经系统的伤害性途径中,其受体也在疼痛途径中表达,在40%-50%的背根神经节神经元中发现了降钙素基因相关肽样免疫反应(CGRP-LI)。

背景:研究表明,破骨细胞通过分泌netrin-1诱导软骨下骨的感觉神经异常长入,导致骨关节炎动物模型痛阈减低,由此推测抑制破骨细胞的骨吸收作用可缓解感觉神经介导的疼痛症状。

目的:探讨青蒿琥酯能否通过抑制软骨下骨破骨细胞活性进而减少感觉神经支配,为研究青蒿琥酯对骨关节炎镇痛提供实验依据。

方法:将C57BL/6J雄性小鼠随机分为假手术组、安慰剂组和青蒿琥酯组,每组10只;假手术组仅切开小鼠右膝关节囊不损伤其他结构,术后无其他干预;其他2组通过右膝前十字韧带横断术构建骨关节炎模型,青蒿琥酯组术后给予腹腔内注射青蒿琥酯(每日100 mg/kg),安慰剂组术后给予腹腔内注射相等体积的5%NaHCO3。术后14 d进行足印迹分析,ELISA检测各组小鼠外周血血清TRAcP5b、cathepsin K和CTX-Ⅰ水平,取各组小鼠膝关节标本进行番红固绿染色及组织学评分、抗酒石酸酸性磷酸酶染色、netrin-1及CGRP免疫组化染色。

结果与结论:①右后爪同侧接触面积百分比:假手术组和青蒿琥酯组高于安慰剂组(P < 0.05);假手术组与青蒿琥酯组之间差异无显著性意义(P > 0.05);②小鼠血清TRAcP5b、cathepsin K和CTX-Ⅰ水平组间差异均无显著性意义(P > 0.05);③基于番红固绿染色的软骨组织学评分:假手术组和青蒿琥酯组低于安慰剂组(P < 0.05),假手术组与青蒿琥酯组之间差异无显著性意义(P > 0.05);④抗酒石酸酸性磷酸酶染色:假手术组、青蒿琥酯组抗酒石酸酸性磷酸酶染色阳性破骨细胞量低于安慰剂组(P < 0.05),假手术组与青蒿琥酯组之间差异无显著性意义(P > 0.05);⑤与安慰剂组相比,假手术组、青蒿琥酯组软骨下骨中netrin-1及CGRP阳性感觉神经减少(P < 0.05),而这2项指标在青蒿琥酯组与假手术组之间差异无显著性意义(P > 0.05);⑥结果表明,青蒿琥酯通过抑制软骨下骨破骨细胞分泌netrin-1改善了感觉神经介导的疼痛,具有可缓解骨关节炎疼痛的治疗潜力。

ORCID: 0000-0002-1569-7037(沙力塔娜提·乌尔曼别克)

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, 青蒿琥酯, 破骨细胞, netrin-1, 软骨下骨, 疼痛, 降钙素基因相关肽

Abstract:

BACKGROUND: Studies have shown that osteoclasts induce aberrant in growth of sensory nerves into the subchondral bone by secreting netrin-1, resulting in a reduced pain threshold in an osteoarthritis animal model. Therefore, we assume that inhibition of osteoclasts can alleviate sensory nerve-mediated pain symptoms.

OBJECTIVE: To investigate whether artesunate inhibits subchondral bone osteoclasts and reduces sensory nerve-mediated pain, providing experimental data for the treatment of osteoarthritis pain using artesunate.

METHODS: C57BL/6J male mice were randomly assigned to a sham operation group, a placebo group and an artesunate group, with 10 mice per group. The mice in the sham operation group were only subjected to right knee capsulotomy with no damage to the other structures. Moreover, there was no intervention after operation. In the other two groups, the mice received an anterior cruciate ligament transection of the right knee to establish the osteoarthritis model, followed by treatment with artesunate (artesunate group, 100 mg/kg per day) or equivalent volume of 5% NaHCO3 (placebo group) via intraperitoneal injection. Fourteen days after surgery, the footprint trial was performed, and the levels of tartrate-resistant acid phosphatase 5b (TRAcP5b), cathepsin K and carboxy-terminal telopeptide of type I collagen (CTX-I) in the peripheral blood were detected using ELISA. The knee joint specimens of each group were subjected to Safranin O-Fast Green staining, histological scoring, tartrate-resistant acid phosphatase (TRAP) staining and immunohistochemical staining with netrin-1 and calcitonin gene-related peptide (CGRP).

RESULTS AND CONCLUSION: The percentage of ipsilateral contact area of the right hindpaw in the footprint trial was significantly higher in the sham operation group and artesunate group than the placebo group (P < 0.05), but there was no significant difference between artesunate group and sham operation group (P > 0.05). No significant differences were observed in the serum levels of TRAcP5b, cathepsin K and CTX-I between the groups (P > 0.05). Based on the Safranin O-Fast Green staining, the cartilage histology score was significantly lower in the sham operation group and the artesunate group than the placebo group (P < 0.05), but there was no significant difference between artesunate group and sham operation group (P > 0.05). TRAP staining indicated that compared with the placebo group, the Trap+ osteoclasts were significantly lower in the sham operation group and the artesunate group (P < 0.05), but no significant difference was found between artesunate group and sham operation group (P > 0.05). Compared with the placebo group, the netrin-1+ and CGRP+ sensory nerves in the subchondral bone were significantly decreased in the sham operation group and the artesunate group (P < 0.05), but the two indices had no significant differences between artesunate group and sham operation group (P > 0.05). Our findings from this study indicate that artesunate improves sensory nerve-mediated pain by inhibiting netrin-1 secreted by subchondral bone osteoclasts, and has therapeutic potential to alleviate osteoarthritis pain.

Key words:

osteoarthritis, artesunate, osteoclast, netrin-1, subchondral bone, pain, calcitonin gene-related peptide

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