中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (9): 1359-1363.doi: 10.3969/j.issn.2095-4344.1643

• 干细胞培养与分化 stem cell culture and differentiation • 上一篇    下一篇

荷斯坦奶牛乳腺干细胞的成骨诱导及鉴定

陈钰萌1,2,韩哲先1,2,刘迎春1,2,高 峰3   

  1. 1内蒙古农业大学生命科学学院,内蒙古自治区呼和浩特市 010018;2内蒙古自治区生物制造重点实验室,内蒙古自治区呼和浩特市 010018;3内蒙古农业大学动物科学学院,内蒙古自治区呼和浩特市 010018
  • 修回日期:2018-12-16 出版日期:2019-03-28 发布日期:2019-03-28
  • 通讯作者: 高峰,博士,教授,内蒙古农业大学动物科学学院,内蒙古自治区呼和浩特市 010018
  • 作者简介:陈钰萌,女,1994年生,山东省济宁市人,在读硕士,主要从事干细胞信号通路方面的研究。
  • 基金资助:

    国家自然科学基金(31160445),项目负责人:刘迎春

Osteogenic induction and identification of mammary stem cells derived from a Holstein dairy cow

Chen Yumeng1, 2, Han Zhexian1, 2, Liu Yingchun1, 2, Gao Feng3   

  1. 1College of Life Sciences, 3College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, Inner Mongolia Autonomous Region, China; 2Key Laboratory of Biological Manufacturing of Inner Mongolia Autonomous Region, Hohhot 010018, Inner Mongolia Autonomous Region, China
  • Revised:2018-12-16 Online:2019-03-28 Published:2019-03-28
  • Contact: Gao Feng, MD, Professor, College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, Inner Mongolia Autonomous Region, China
  • About author:Chen Yumeng, Master candidate, College of Life Sciences, Inner Mongolia Agricultural University, Hohhot 010018, Inner Mongolia Autonomous Region, China; Key Laboratory of Biological Manufacturing of Inner Mongolia Autonomous Region, Hohhot 010018, Inner Mongolia Autonomous Region, China
  • Supported by:

    the National Natural Science Foundation of China, No. 31160445 (to LYC)

摘要:

文章快速阅读:

文题释义:
乳腺干细胞:
DeOme等在1959年的研究中发现,将乳腺上皮组织移植到乳腺中即可产生完整乳腺组织,即表明乳腺上皮组织中有干细胞存在;随后,Shackleton等报道了单个乳腺细胞能够发育成完整乳腺,印证了乳腺干细胞的存在。乳腺干细胞是一种成体干细胞,由多种类型上皮细胞组成,在乳腺组织发育中起到关键作用。在动物青春期和怀孕阶段,乳腺干细胞迅速得到活化,自主更新非常活跃,这对于不同时期的乳腺生长与重建具有重要意义。正常情况下乳腺干细胞处于不分裂的静息状态,但在体外环境中,根据诱导条件不同可分化为多种不同细胞,例如乳腺上皮细胞、神经细胞、脂肪细胞等。
奶牛乳腺的生长发育:动物的乳腺是一种能够反复经历发育、功能分化和退化的组织,早在胚胎期乳腺就己经开始发育。奶牛的乳腺发育经过胚胎期、青春期前、青春期后、妊娠期、泌乳期及干乳期6个时期,这一过程是奶牛泌乳性能发挥的决定性过程。然而在乳腺的生长发育过程中,乳腺干细胞对于青春期、妊娠期、泌乳期和泌乳衰退期的乳腺生长与重建具有重大意义。

 

摘要
背景:
课题组已经完成乳腺干细胞向神经细胞和脂肪细胞的诱导,该实验诱导乳腺干细胞分化为成骨细胞,进一步丰富其分化潜能多样性,对乳腺干细胞的研究具有重要意义。
目的:探讨荷斯坦奶牛乳腺干细胞定向诱导分化为成骨细胞的潜能。
方法:分离纯化的荷斯坦奶牛乳腺干细胞系,由内蒙古生物制造重点实验室提供。取第4代乳腺干细胞加入成骨诱导液培养21 d,采用茜素红染色法和RT-PCR技术进行鉴定。
结果与结论:荷斯坦奶牛乳腺干细胞经成骨诱导后,细胞边缘模糊,细胞中有颗粒状钙化结节出现,经茜素红染色呈阳性,诱导后成骨细胞标记性基因Alpl和Bglap呈阳性表达,表明了荷斯坦奶牛乳腺干细胞具有分化为成骨细胞的潜能。


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程
ORCID: 0000-0002-9891-2715(陈钰萌)

关键词: 荷斯坦奶牛, 乳腺干细胞, 成骨诱导分化, 成骨细胞, 成骨标记基因, 国家自然科学基金

Abstract:

BACKGROUND: The isolated and purified mammary stem cells from Holstein dairy cows have been induced to differentiate into nerve cells, adipocytes and osteoblasts, further enriching their multi-directional differentiation potential, which is of great significance for the study on mammary stem cells.
OBJECTIVE: To investigate the osteogenic potential of mammary stem cells from Holstein dairy cows.
METHODS: Mammary stem cells from Holstein dairy cows were isolated and purified, which were provided by the Key Laboratory of Biological Manufacturing of Inner Mongolia Autonomous Region. The fourth generation of mammary stem cells were cultured for 21 days in an osteogenic induction medium, and identified by alizarin red staining and RT-PCR.
RESULTS AND CONCLUSION: After osteogenic induction, the cell edge was indistinct, and there were some granular calcified nodules in the cells. The induced cells were positive for alizarin red staining. The positive expressions of Alpl and Bglap in the induced osteoblasts were detected, indicating that the mammary stem cells from Holstein dairy cows have the potential to differentiate into osteoblasts.


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

Key words: Cattle, Mammary Glands, Animal, Stem Cells, Cell Differentiation, Osteoblasts, Tissue Engineering

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