中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (8): 1192-1196.doi: 10.3969/j.issn.2095-4344.2017.08.008

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

亲骨荧光素间接标记软骨内成骨的早期血管新生

吴  涛,刘英超,郭志旺,吕  军,邢建洲,侯  兵   

  1. 广州医科大学附属武警广东省总队医院,广东省广州市   510507
  • 收稿日期:2017-02-16 出版日期:2017-03-18 发布日期:2017-04-14
  • 通讯作者: 侯兵,硕士,医师,广州医科大学附属武警广东省总队医院,广东省广州市 510507
  • 作者简介:吴涛,男,1979年生,湖南省岳阳市人,汉族,2009年南方医科大学毕业,博士,主治医师,主要从事骨组织工程方面的研究。
  • 基金资助:

    国家自然科学基金(81303107);广东省自然科学基金(S2012040006295);广东省医学科研基金(A2012499;A2014499)

Bone affinity fluorescein indirectly marks early angiogenesis during endochondral ossification

Wu Tao, Liu Ying-chao, Guo Zhi-wang, Lv Jun, Xing Jian-zhou, Hou Bing   

  1. Guangdong General Hospital of Chinese People’s Armed Police Force, Guangzhou Medical University, Guangzhou 510507, Guangdong Province, China
  • Received:2017-02-16 Online:2017-03-18 Published:2017-04-14
  • Contact: Hou Bing, Master, Physician, Guangdong General Hospital of Chinese People’s Armed Police Force, Guangzhou Medical University, Guangzhou 510507, Guangdong Province, China
  • About author:Wu Tao, M.D., Attending physician, Guangdong General Hospital of Chinese People’s Armed Police Force, Guangzhou Medical University, Guangzhou 510507, Guangdong Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81303107; the Natural Science Foundation of Guangdong Province, No. S2012040006295; the Medical Science Research Foundation of Guangdong Province, No. A2012499 and A2014499

摘要:

文章快速阅读:

文题释义:
亲骨荧光素:指能够与骨组织中钙离子特异性结合的荧光染料,比较常用的有四环素、茜素络合酮、钙黄绿素等,注入体内后,可以与骨组织尤其是新生的骨组织相结合。经硬组织切片后,由特定波长激发,可在荧光显微镜下将示踪的骨组织呈现出来。
间接标记新生血管:在软骨内成骨过程中,新骨往往优先沉积于血供和氧供丰富的血管周围,利用这一特性,采用亲骨荧光素标记新生骨组织,可达到间接标记新生血管的目的。
摘要
背景
:虽然当前有多种方法可以观察和检测软骨内成骨早期血管新生,但是均存在一定的不足。
目的:探讨四环素和茜素络合酮间接标记软骨内成骨过程中新生血管的可能性。
方法:制备新西兰兔双侧桡骨骨缺损模型并植入β-磷酸三钙材料,分别于术后第1天和第15天注射四环素和茜素络合酮,第28天取材。部分标本在墨汁灌注后行硬组织切片荧光/光学显微镜观察,部分标本经脱钙后行免疫组化染色观察,比较软骨内成骨过程中亲骨荧光素标记管腔结构与免疫组化、墨汁灌注标记血管结构的一致性。
结果与结论:①亲骨荧光素标记的管腔结构经免疫组化染色证实为CD34阳性的血管结构;②在荧光显微镜下,亲骨荧光素标记的血管形态与墨汁灌注的血管形态一致;荧光素标记后经墨汁灌注的血管在荧光显微镜下可见荧光管腔中有黑色墨汁走行;③此外,亲骨荧光素标记的管腔结构颜色绚丽、三维结构更加生动,可通过不同颜色的荧光显示不同时期的血管新生和演变过程,具有独特的优势,可用于软骨内成骨早期血管发生的形态学检测。

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: 0000-0003-4970-8686(侯兵)

关键词: 组织构建, 骨组织工程, 四环素, 茜素络合酮, 荧光, 软骨内成骨, 血管, 组织切片, 国家自然科学基金

Abstract:

BACKGROUND: There are various methods to observe and detect early angiogenesis in the process of entochondrostosis, but each holds certain deficiencies.
OBJECTIVE: To explore the possibility of tetracycline and alizarin complexone as an indirect marker of angiogenesis in the process of entochondrostosis.
METHODS: New Zealand white rabbit models of bilateral radial bone defects were prepared, followed by β-tricalcium phosphate implantation, and then given the injection of tetracycline and alizarin complexone at 1 and 15 days, respectively. Samples were collected at 28 days, some of which were observed using fluorescence/light microscope after ink perfusion and hard tissue slicing, and the others were decalcified and observed using immunohistochemistry. The uniformity between lumen structures labeled with bone affinity fluorescein and vascular structures marked by immunohistochemistry and ink perfusion was compared.
RESULTS AND CONCLUSION: The lumen structure labeled with bone affinity fluorescein was confirmed to be a CD34 positive vascular structure. Under the fluorescence microscope, the bone affinity fluorescein labeled vascular morphology was consistent with ink perfusion-labeled, and black ink lines could be observed in the lumen structures labeled with bone affinity fluorescein after ink perfusion. In addition, the color of the lumen labeled with fluorescein was more gorgeous, three-dimensional structure more vivid, and the vascular evolution process distinguished more easily by different fluorescein colors, exhibiting unique advantages. Therefore, it is available to detect the early angiogenesis in the process of entochondrostosis

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: Tetracycline, Fluorescence, Cartilage, Blood Vessels, Tissue Engineering

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