中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (35): 5633-5639.doi: 10.3969/j.issn.2095-4344.2014.35.011

• 人工假体 artificial prosthesis • 上一篇    下一篇

乌司他丁抑制破骨细胞活化及与基质金属蛋白酶2和9的关系:预防假体骨溶解的潜在价值

茹江英,赵建宁,郭  亭,俞  磊,丁  浩,江  辉   

  1. 解放军第二军医大学附属南京临床医学院(解放军南京军区南京总医院),江苏省南京市  210002
  • 修回日期:2014-07-29 出版日期:2014-08-27 发布日期:2014-08-27
  • 通讯作者: 赵建宁,教授,博士生导师,解放军第二军医大学附属南京临床医学院(解放军南京军区南京总医院),江苏省南京市 210002
  • 作者简介:茹江英,男,1976年生,山西省晋城市人,汉族,2006年南通大学毕业,硕士,现工作于武警江苏省总队医院骨科,副主任医师,主要从事关节外科、创伤骨科方面的研究。
  • 基金资助:

    江苏省基础研究计划(自然科学基金)-面上研究项目(BK2012776)

Inhibitory effect of ulinastatin on osteoclast activation and the relationship of ulinastatin to matrix metalloproteinase-2 and matrix metalloproteinase-9: potential of preventing prosthetic osteolysis

Ru Jiang-ying, Zhao Jian-ning, Guo Ting, Yu Lei, Ding Hao, Jiang Hui   

  1. Nanjing Clinical Medical School Affiliated to the Second Military Medical University of Chinese PLA (Nanjing General Hospital of Nanjing Military Area Command of Chinese PLA), Nanjing 210002, Jiangsu Province, China
  • Revised:2014-07-29 Online:2014-08-27 Published:2014-08-27
  • Contact: Zhao Jian-ning, Professor, Doctoral supervisor, Nanjing Clinical Medical School Affiliated to the Second Military Medical University of Chinese PLA (Nanjing General Hospital of Nanjing Military Area Command of Chinese PLA), Nanjing 210002, Jiangsu Province, China
  • About author:Ru Jiang-ying, Master, Associate chief physician, Nanjing Clinical Medical School Affiliated to the Second Military Medical University of Chinese PLA (Nanjing General Hospital of Nanjing Military Area Command of Chinese PLA), Nanjing 210002, Jiangsu Province, China
  • Supported by:

    the Jiangsu Province Basic Research Program (Natural Science Foundation)-General Project, No. BK2012776

摘要:

背景:推测尿胰蛋白酶抑制剂可能在假体磨屑诱发的机体炎症反应中,对局部组织在缺血缺氧、长期慢性炎症环境下起保护作用,并可抑制破骨细胞的增殖和活化。
目的:探讨尿胰蛋白酶抑制剂在核因子κB受体活化因子配体(receptor activator for nuclear factor-κB ligand,RANKL)诱导RAW264.7细胞分化、增殖及形成成熟破骨细胞中的作用及与基质金属蛋白酶2和9的关系。
方法:采用不同浓度尿胰蛋白酶抑制剂(0,500,5 000 U/mL乌司他丁)处理小鼠单核/巨噬细胞株RAW264.7后24,48,72 h。实验分为4组:空白组(RAW264.7细胞)、RANKL诱导组(0 U/mL乌司他丁)、500 U/mL乌司他丁组和5 000 U/mL乌司他丁组。
结果与结论:①MTT法检测结果表明,尿胰蛋白酶抑制剂乌司他丁浓度在0-5 000 U/mL对RAW264.7细胞增殖无明显影响(P > 0.05)。②抗酒石酸酸性磷酸酶染色法检测结果表明,与RANKL诱导组相比,乌司他丁组抗酒石酸酸性磷酸酶阳性细胞数量均显著减少(P < 0.05),呈时间剂量依赖关系。③免疫组织化学结果显示,与RANKL诱导组比较,乌司他丁组的基质金属蛋白酶9染色阳性细胞百分率均显著降低。④Western blot结果显示,单独RAW264.7细胞仅表达少量基质金属蛋白酶9,加入RANKL 48 h后基质金属蛋白酶9蛋白大量表达,5 000 U/mL乌司他丁组培养72 h后, 基质金属蛋白酶9蛋白表达显著减少。⑤明胶酶谱分析结果显示,与RANKL诱导组比较,5 000 U/mL乌司他丁组基质金属蛋白酶9活性水平均显著降低(P < 0.05)。结果表明,尿胰蛋白酶抑制剂对RANKL诱导破骨细胞活化具有一定的抑制作用,且可降低基质金属蛋白酶9的表达水平及活性。


中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程


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关键词: 植入物, 人工假体, 乌司他丁, 骨组织工程, 基质金属蛋白酶2, 基质金属蛋白酶9, 破骨细胞, 人工关节, 无菌性松动, 骨溶解, 江苏省自然科学基金

Abstract:

BACKGROUND: It is presumed that urinary trypsin inhibitor could have protective effects on local and systemic tissues and could inhibit osteoclast proliferation and activation under long-term chronic inflammation conditions  and in ischemic and anoxic environment which was induced by prosthetic wear.
OBJECTIVE: To investigate the inhibitory effect of ulinastatin on receptor activator for nuclear factor-κb ligand-induced differentiation, proliferation and osteoclastogenesis of RAW264.7 cells and its effects on matrix metalloproteinase-2, matrix metalloproteinase-9 expression level and activity.
METHODS: Mouse monocyte/macrophage cell line RAW264.7 was treated with different concentrations of urinary trypsin inhibitor (0, 500, 5 000 U/mL) for 24, 48 and 72 hours. Experiments were divided into four groups: the blank group (RAW264.7 cells), receptor activator for nuclear factor-κb ligand-induced group (0 U/mL ulinastatin), 500 U/mL ulinastatin group and 5 000 U/mL ulinastatin group.
RESULTS AND CONCLUSION: (1) MTT results indicated that there was no significant difference on the proliferation of RAW264.7 cells treated with urinary trypsin inhibitor at 0-5 000 U/mL (P > 0.05) (2) Tartrate-resistant acid phosphatase staining results revealed that compared with receptor activator for nuclear factor-κb ligand-induced group, the number of tartrate-resistant acid phosphatase-positive cells was significantly less in the ulinastatin group (P < 0.05), showing a time-dose dependent manner. (3) Immunohistochemisical results found that compared with receptor activator for nuclear factor-κb ligand-induced group, the percentage of matrix metalloproteinase-9-positive cells was apparently lower in the ulinastatin group. (4) Western blot assay results demonstrated that matrix metalloproteinase-9 expression was low in the RAW264.7 cells alone. At 48 hours after addition of receptor activator for nuclear factor-κb ligand, matrix metalloproteinase-9 protein expression was large. At 72 hours after culture in the 5 000 U/mL ulinastatin group, matrix metalloproteinase-9 protein expression was evidently reduced. (5) Gelatin zymography results showed that compared with the receptor activator for nuclear factor-κb ligand-induced group, matrix metalloproteinase-9 expression was significantly lower in the 5 000 U/mL ulinastatin group (P < 0.05). Results suggested that urinary trypsin inhibitor inhibited receptor activator for nuclear factor-κb ligand-induced osteoclastogenesis and diminished matrix metalloproteinase-9 expression and activity.


中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程


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Key words: trypsin inhibitors, RANK ligand, osteoclasts, matrix metalloproteinase 2, matrix metalloproteinase 9

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