中国组织工程研究 ›› 2024, Vol. 28 ›› Issue (25): 3942-3946.doi: 10.12307/2024.178

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

兔垂体干细胞的培养鉴定及分化

岳婷婷1,朱  婷2,毛剑男1,李  伟1,杭春华1,2   

  1. 1南京大学医学院附属鼓楼医院神经外科,江苏省南京市   210008;2南京中医药大学鼓楼临床医学院,江苏省南京市   210008
  • 收稿日期:2023-05-22 接受日期:2023-07-04 出版日期:2024-09-08 发布日期:2023-11-23
  • 通讯作者: 杭春华,博士,主任医师,教授,南京大学医学院附属鼓楼医院神经外科,江苏省南京市 210008;南京中医药大学鼓楼临床医学院,江苏省南京市 210008
  • 作者简介:岳婷婷,女,1992年生,江苏省南京市人,汉族,2019年中国医科大学毕业,博士,主要从事干细胞在神经系统疾病中的作用及机制研究。
  • 基金资助:
    国家自然科学基金面上项目(81971122),项目负责人:杭春华

Culture, identification, and differentiation of rabbit pituitary stem cells

Yue Tingting1, Zhu Ting2, Mao Jiannan1, Li Wei1, Hang Chunhua1, 2   

  1. 1Department of Neurosurgery, Nanjing Drum Tower Hospital Affiliated to Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China; 2Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing 210008, Jiangsu Province, China
  • Received:2023-05-22 Accepted:2023-07-04 Online:2024-09-08 Published:2023-11-23
  • Contact: Hang Chunhua, MD, Chief physician, Professor, Department of Neurosurgery, Nanjing Drum Tower Hospital Affiliated to Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China; Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing 210008, Jiangsu Province, China
  • About author:Yue Tingting, MD, Department of Neurosurgery, Nanjing Drum Tower Hospital Affiliated to Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China
  • Supported by:
    National Natural Science Foundation of China (General Program), No. 81971122 (to HCH)

摘要:


文题释义:

垂体干细胞:是具有自我更新和多向分化潜能的原始细胞,主要分布于垂体前叶,其在整个生命过程中保持多能能力,并可分化成多种分泌不同激素类型的垂体细胞,在垂体平衡中发挥重要作用。
细胞分化:指同一来源的细胞逐渐产生出形态结构、功能特征各不相同的细胞类群的过程,其结果是在时间和空间上同一细胞与其从前的状态有所不同。如垂体干细胞可分化为多种类型细胞:促肾上腺皮质激素细胞、促甲状腺激素细胞、促生长激素细胞、促黄体生成激素细胞、促卵泡素细胞、催乳素细胞。


背景:脑垂体是人体重要的内分泌器官。多种疾病可引起脑垂体损伤,如脑垂体瘤、垂体功能减退症等。垂体干细胞因具有自我更新和多向分化潜力的特性,有望成为一种新的治疗方式修复受损的垂体。

目的:采用悬浮细胞球培养法分离培养垂体干细胞,鉴定其增殖及分化能力。
方法:采用悬浮细胞球培养法从新生新西兰白兔垂体中分离培养垂体干细胞,观察其形态特征;免疫荧光细胞染色检测垂体干细胞标志蛋白SOX2及Nestin的表达;采用EdU标记法检测垂体干细胞增殖能力;经贴壁及诱导分化后,通过ELISA法检测培养基中的激素水平。

结果与结论:通过悬浮细胞球培养法可成功分离得到垂体干细胞球,且具有较强的增殖能力;干细胞特异性标记物SOX2和Nestin阳性表达;经诱导分化后培养基中促肾上腺皮质激素、促甲状腺激素、促生长激素、促黄体生成激素、促卵泡素、催乳素水平显著升高(P < 0.001),具有较强的分化能力。

https://orcid.org/0000-0001-9672-0798 (岳婷婷) 

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

关键词: 垂体干细胞, 垂体, 悬浮细胞球培养, 鉴定, 分化,

Abstract: BACKGROUND: The pituitary gland is an important endocrine organ in the body. Certain diseases can cause damage to the pituitary gland, such as pituitary adenoma and abnormal hormone secretion. Pituitary stem cells, due to their self-renewal and multi-directional differentiation potential, are expected to become a new therapeutic approach for repairing damaged pituitary glands.

OBJECTIVE: To isolate and culture pituitary stem cells using the suspension cell ball culture method and identify their proliferation and differentiation ability. 

METHODS: Pituitary stem cells were isolated and cultured from the pituitary gland of newborn New Zealand white rabbits using the suspension cell ball culture method, and their morphological characteristics were observed. Immunofluorescence cytochemistry was used to detect the expression of pituitary stem cell markers SOX2 and Nestin. EdU labeling method was utilized to detect the proliferative ability of pituitary stem cells. After adherent and induced differentiation, the hormone levels in the culture medium were detected by ELISA.

RESULTS AND CONCLUSION: Pituitary stem cell spheres could be successfully isolated by the suspension cell ball culture method, with strong proliferative ability. Positive expression of stem cell-specific markers SOX2 and Nestin was found in the cultured cells. After induction and differentiation, adrenocorticotropic hormone, thyroid hormone, growth hormone, luteinizing hormone, follicle-stimulating hormone, and prolactin levels significantly increased in the medium (P < 0.001), with strong differentiation ability.

Key words: pituitary stem cell, pituitary, suspension cell ball culture, appraisal, differentiation, rabbit

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