首都医科大学学报 ›› 2021, Vol. 42 ›› Issue (1): 37-42.doi: 10.3969/j.issn.1006-7795.2021.01.007

• 基础研究 • 上一篇    下一篇

钛颗粒诱导骨溶解的不同动物模型形态学研究

张晨1, 刘子歌1, 宋国瑞1, 李燕2, 陈德胜3*, 程萌旗4   

  1. 1.宁夏医科大学临床医学院,银川 750004;
    2.宁夏医科大学基础医学院,银川 750004;
    3.宁夏医科大学总医院骨科,银川 750004;
    4.上海交通大学附属第六人民医院关节外科,上海 200011
  • 收稿日期:2020-04-21 出版日期:2021-02-21 发布日期:2021-02-02
  • 基金资助:
    国家自然科学基金项目(81760405,81760395),宁夏回族自治区自然科学基金项目(2018AAC02013),宁夏医科大学校级课题(XZ2018014)。

Morphological study on different animal models of titanium particles inducing osteolysis

Zhang Chen1, Liu Zige1, Song Guorui1, Li Yan2, Chen Desheng3*, Cheng Mengqi4   

  1. 1. Ningxia Medical University Clinical Medical College,Yinchuan 750004,China;
    2. Ningxia Medical University Basic Medical College,Yinchuan 750004,China;
    3. Department of Orthopaedics, General Hospital of Ningxia Medical University,Yinchuan 750004,China;
    4. Joint Surgery, The Sixth People's Hospital of Shanghai Jiao Tong University,Shanghai 200011,China
  • Received:2020-04-21 Online:2021-02-21 Published:2021-02-02
  • Contact: *E-mail:shuangshuangmama@163.com
  • Supported by:
    National Natural Science Foundation of China(81760405,81760395),Natural Science Foundation of Ningxia Autonomous Region(2018AAC02013),School-level Project of Ningxia Medical University(XZ2018014).

摘要: 目的 通过钛颗粒诱导建立3种不同的骨溶解模型,比较其形态学差异、炎性反应水平、骨溶解情况以及破骨细胞计数等指标,为建立骨溶解动物模型的选择提供更好的依据。方法 45只雌性BALB/c小鼠采用数字表法随机分为钛颗粒刺激颅骨骨溶解模型(A组)、钛颗粒刺激气囊模型组(B组)及钛颗粒刺激气囊植骨模型组(C组)。通过大体观察和组织病理学对3组模型进行形态学观察;采用透射电子显微镜观察对比A、B两组骨溶解面积及C组软组织变化的超微结构,讨论其与人体标本病理生理变化的相似性。结果 大体观察:A组可见颅骨表面有钛颗粒浸润,骨面不光整;B组气囊组织中有钛颗粒浸润,气囊囊壁增厚,有炎性水肿;C组可见颅骨块与周围的气囊组织之间有炎性细胞浸润,有钛颗粒包裹,且炎性反应明显。HE染色结果:A组颅骨表面钛颗粒周围有部分炎性反应,骨面欠平整;B组可见气囊囊壁厚,囊壁内有多种炎性细胞浸润,可有钛颗粒聚集;C组可见钛颗粒周围有炎性细胞浸润,骨片表面骨溶解表现。透射电子显微镜结果:A组破骨细胞胞质内见到钛颗粒,钛颗粒下有部分片状骨溶解;B组细胞胞质内有钛颗粒浸润,周围的细胞外散在有基质组织,基质组织中含水量减少;C组颅骨骨片骨面缺失,周围及与界膜之间有增生活跃的破骨细胞。结论 3种不同钛颗粒刺激下骨溶解动物模型的构建,形态学表现各有不同,可为假体周围骨溶解的基础研究提供有效的实验平台。

关键词: 动物模型, 骨溶解, 钛颗粒, 气囊

Abstract: Objective To establish three different osteolysis models induced by titanium particles, and to compare their morphological differences, inflammatory level, osteolysis and osteoclast count, so as to provide a better basis for the selection of osteolysis animal models. Methods Forty five female BALB/c mice were divided into three groups randomly: Titanium particles stimulate the skull osteolysis model (group A), titanium particles stimulate the balloon model group (group B) and titanium particles stimulate the balloon bone graft model group (group C).Morphologically observe three groups of models by gross observation and histopathology. The transmission electron microscope was used to observe and compare the osteolytic area of the group A and group B, and the ultrastructure of soft tissue changes in the group C. The similarities between them and the pathophysiological changes of human specimens were discussed. Results In general, there was infiltration of titanium particles on the surface of skull in group A, and the surface of bone was not smooth; there was infiltration of titanium particles, thickening of the wall of airbag, and inflammatory edema in the group B; there were infiltration of inflammatory cells between the skull block and the surrounding airbag tissue, wrapped by titanium particles, and the inflammatory reaction was obvious in group C. HE staining results: there were some inflammatory reactions around the titanium particles on the skull surface, and the bone surface was not smooth in group A; there were many kinds of inflammatory cells infiltrated in the cyst wall, and titanium particles could gather in group B; there were inflammatory cells infiltrated around the titanium particles, and osteolysis on the bone surface was seen in group C. By transmission electron microscope: titanium particles were found in the cytoplasm of osteoclasts in group A, and some lamellar osteolysis was found under the titanium particles; titanium particles were infiltrated in the cytoplasm of cells in group B, matrix tissue was scattered around the cells, and the water content in the matrix tissue was reduced; osteoclast precursor cells were proliferative and active around the bone tissue in group C, loss of bone surface. Conclusion Three kinds of animal models of osteolysis stimulated by titanium particles have different morphological manifestations, which can provide an effective experimental platform for the basic research of osteolysis around prosthesis.

Key words: animal model, osteolysis, titanium particles, air pouch

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