中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (37): 5998-6002.doi: 10.3969/j.issn.2095-4344.2014.37.017

• 脂肪干细胞 adipose-derived stem cells • 上一篇    下一篇

分阶段添加细胞诱导因子诱导豚鼠脂肪间充质干细胞定向分化内耳毛细胞

王晓燕1,李兵兵2,张恩峰3,毕晓娟3,刘立中4   

  1. 新疆医科大学第一附属医院,1耳鼻咽喉科,3医学研究中心,4干部保健特诊科,新疆维吾尔自治区乌鲁木齐市  830054;2莆田市第一医院骨科,福建省莆田市  351100
  • 修回日期:2014-08-17 出版日期:2014-09-03 发布日期:2014-09-03
  • 通讯作者: 刘立中,博士,主任医师,新疆医科大学第一附属医院干部保健特诊科,新疆维吾尔自治区乌鲁木齐市 830054
  • 作者简介:王晓燕,女,1985年生,甘肃省张掖市人,汉族,新疆医科大学在读硕士,主要从事耳科组织工程与干细胞治疗方面的研究。
  • 基金资助:

    新疆维吾尔自治区自然科学基金(2011211A060)

Adipose-derived mesenchymal stem cells differentiate into inner ear hair cells in guinea pigs induced by progressive addition of cytokines

Wang Xiao-yan1, Li Bing-bing2, Zhang En-feng3, Bi Xiao-juan3, Liu Li-zhong4   

  1. 1Department of Otorhinolaryngology, 3Medical Research Center, 4Department of Cadre, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China; 2Department of Orthopedics, First Hospital of Putian, Putian 351100, Fujian Province, China
  • Revised:2014-08-17 Online:2014-09-03 Published:2014-09-03
  • Contact: Liu Li-zhong, M.D., Chief physician, Department of Cadre, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • About author:Wang Xiao-yan, Studying for master’s degree, Department of Otorhinolaryngology, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • Supported by:

    the Natural Science Foundation of Xinjiang Uygur Autonomous Region, No. 2011211A060

摘要:

背景:感音神经性耳聋主要是由内耳毛细胞的缺失或受损造成,用脂肪间充质干细胞来再生修复内耳毛细胞是治疗听力损失的有效方法。
目的:探讨体外定向诱导豚鼠脂肪间充质干细胞向内耳毛细胞样细胞分化的可行性。
方法:体外分离培养豚鼠脂肪间充质干细胞至第3代,流式细胞仪检测细胞免疫表型,分阶段加入表皮生长因子、碱性成纤维细胞生长因子、胰岛素样生长因子1、全反式维甲酸、脑源性神经营养因子、神经营养因子3,观察诱导分化的效果。
结果与结论:豚鼠脂肪间充质干细胞体外培养呈梭形,漩涡状贴壁生长,第3代细胞表面标记CD29与CD44表达呈现阳性,CD34与CD45表达呈现阴性。应用细胞因子诱导后细胞早期nestin和GFAP表达阳性,继续诱导10 d后表达毛细胞特异性标记物MyosinⅦa和Math1,说明细胞因子可定向诱导豚鼠脂肪间充质干细胞向内耳毛细胞分化。


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


全文链接:

关键词: 干细胞, 脂肪干细胞, 毛细胞, 脂肪间充质干细胞, 豚鼠, 细胞因子, 新疆维吾尔自治区自然科学基金

Abstract:

BACKGROUND: Sensorineural hearing loss is mainly caused by missing or damaged hair cells in the inner ear. Application of adipose-derived mesenchymal stem cells to regenerate inner ear hair cells is an effective treatment for hearing loss.
OBJECTIVE: To explore the feasibility of in vitro inducing adipose-derived mesenchymal stem cells to differentiate into inner ear hair cell-like cells in guinea pigs.
METHODS: Adipose-derived mesenchymal stem cells from guinea pigs were isolated and cultured to the 3rd generation. Cell phenotype was detected using flow cytometry. Cytokines were added for induction and differentiation by stages, including epidermal growth factor, basic fibroblast growth factor, insulin-like growth factor-1, all-trans retinoic acid, brain-derived neurotrophic factor, neurotrophin 3.
RESULTS AND CONCLUSION: Adipose-derived mesenchymal stem cells of guinea pigs cultured in vitro were fusiform and showed a swirled adherent growth. Passage 3 cells were positive for CDCD29 and CD44, but negative for CD34 and CD45. After induction, the cells were positive for nestin and GFAP positive at early stage;after 10-day continuous induction, the cells expressed Myosin VIIa and Math1, specific markers of hair cells, indicating that cytokines can directly induce adipose-derived mesenchymal stem cells to differentiating into inner ear hair cells in guinea pigs.


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


全文链接:

Key words: adipose tissue, mesenchymal stem cells, guinea pigs, hair cells, auditory, cytokines

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