中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (7): 996-1000.doi: 10.3969/j.issn.2095-4344.0576

• 骨组织构建 bone tissue construction • 上一篇    下一篇

幼兔颅盖骨成骨细胞的分离培养及鉴定

艾力麦尔旦•艾尼瓦尔1,李  鹏1,刁兆峰1,木合塔尔•霍加2   

  1.  (1新疆维吾尔自治区人民医院口腔科,新疆维吾尔自治区乌鲁木齐市   830001;2深圳市罗湖区人民医院,广东省深圳市   518001)
  • 收稿日期:2018-07-26 出版日期:2019-03-08 发布日期:2019-03-08
  • 通讯作者: 木合塔尔?霍加,主任医师,教授,博士生导师,深圳市罗湖区人民医院,广东省深圳市 518001
  • 作者简介:1992年生,男,维吾尔族,新疆医科大学口腔医学在读硕士,主要从事口腔颌面部肿瘤及口腔种植的研究。
  • 基金资助:

    国家自然科学基金资助项目(81560180)

Isolation, culture and identification of osteoblasts from neonatal rabbit calvarium

Ailimaierdan•Ainiwaer1, Li Peng1, Diao Zhaofeng1, Muhetaer•Huojia2   

  1. (1Department of Stomatology, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, Xinjiang Uygur Autonomous Region, China; 2Luohu District People’s Hospital of Shenzhen, Shenzhen 518001, Guangdong Province, China)
  • Received:2018-07-26 Online:2019-03-08 Published:2019-03-08
  • Contact: Muhetaer?Huojia, Chief physician, Professor, Doctoral supervisor, Luohu District People’s Hospital of Shenzhen, Shenzhen 518001, Guangdong Province, China
  • About author:Ailimaierdan?Ainiwaer, Master candidate, Department of Stomatology, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, Xinjiang Uygur Autonomous Region, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81560180

摘要:

文章快速阅读:


文题释义:
差速贴壁法:该方法主要是利用多聚赖氨酸,对成纤维细胞黏附力较强,对许旺细胞黏附力较弱原理,而将成纤维细胞黏附到玻片上,将含有非黏附许旺细胞的上清收集、离心、培养。优点:速度快;许旺细胞产量高;不用抗有丝分裂药物抗血清和补体。由于该方法是在分离获得细胞的同时,就去除了成纤维细胞,因此其速度明显快于其他方法,缺点是成纤维细胞含量较高于其他方法。
改良酶消化法:该实验对传统的成骨细胞培养法进行改良,首先分离骨组织时仔细分离表面纤维结缔及血管软组织,并将组织块儿剪成尽可能小的碎片,胰酶消化适当时间以清除对胰酶消化抵抗能力差的纤维结缔组织、松解成骨细胞,再用Ⅰ型胶原酶消化组织块,从而加快成骨细胞从骨碎片表面爬出的速度,提高得到的细胞数量,加上采用差速贴壁法纯化原代细胞从而消除成纤维细胞、破骨细胞、骨生成细胞等混杂细胞,可以有效提高成骨细胞的纯度。
摘要
背景
:成骨细胞的提取分离尚无公认的高效简便的实验方法。
目的:探讨用改良酶消化法体外分离、培养并鉴定新西兰幼兔颅盖骨成骨细胞的实验方法。
方法:实验利用成纤维细胞胰酶消化时脱壁早,终止消化后贴壁快的特点,采用改良酶消化法分离3 d龄新西兰幼兔颅盖骨成骨细胞并用差速贴壁法纯化培养。倒置显微镜每日观察细胞形态及其生长状况,采用MTT法检测细胞增殖情况并绘制细胞生长曲线,测定碱性磷酸酶含量,免疫组织化学染色法检测Ι型胶原、骨钙素,Runt相关转录因子2(Runt related transcription factor 2,RUNX2)表达,茜素红染色矿化结节等对成骨细胞及其生物化学特性进行鉴定。
结果与结论:①成功分离提取并差速贴壁法纯化培养成骨细胞;②分离培养的成骨细胞贴壁生长,显示正常的成骨细胞形态和生长特征;细胞增殖能力良好;③细胞碱性磷酸酶、Ⅰ型胶原、骨钙素、RUNX2染色均阳性,常规培养21 d茜素红染色形成矿化结节;④结果证实,改良酶消化法培养出的成骨细胞具有典型的成骨细胞特征,成分单一,存活率高。

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: 0000-0002-7564-2169(艾力麦尔旦•艾尼瓦尔)

关键词: 成骨细胞, 颅盖骨, 改良酶消化法, 差速贴壁法, 分离培养, 鉴定, 兔, 组织构建

Abstract:

BACKGROUND: A publicly accepted way to isolate osteoblasts with high purity and efficiency has not been found.
OBJECTIVE: To explore the efficacy of advanced enzymatic digestion method to isolate and culture osteoblasts from calvarial bone of neonatal New Zealand rabbit in vitro.
METHODS: Improved enzymatic digestion method was used to isolate osteoblasts from calvarium of 3-day-old New Zealand rabbits and cells were purified via differential attachment methods. The morphology and growth of osteoblasts were observed by inverted microscope daily.  Cell proliferation was detected by MTT assay and the growth curve was drawn. Alkaline phosphatase activity was measured. The expression levels of collagen type I, osteocalcin and Runt related transcription factor 2 were detected by immunohistochemical staining. Alizarin red staining was carried out to testify mineralized matrix productivity.
RESULTS AND CONCLUSION: Osteoblasts were successfully isolated, cultured and purified by enzyme digestion. The isolated osteoblasts adhered on the wall possessing typical characteristics of osteoblasts with good proliferation ability. Alkaline phosphatase staining and immunohistochemical staining on collagen type I, osteocalcin and Runt related transcription factor 2 presented positive results. Alizarin red staining showed mineralized nodules with different sizes after 21 days of culture. These findings suggest that the osteoblasts cultured by improved enzymatic digestion hold the typical characteristics of osteoblasts, with high purity and survival rate.

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: Skull, Osteoblasts, Cell Separation, Tissue Engineering

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