中国神经再生研究(英文版) ›› 2017, Vol. 12 ›› Issue (1): 84-89.doi: 10.4103/1673-5374.198989

• 原著:脑损伤修复保护与再生 • 上一篇    下一篇

脉络丛上皮细胞向神经元和胶质细胞样细胞分化:人创伤性脑脊液的作用

  

  • 收稿日期:2016-12-27 出版日期:2017-01-15 发布日期:2017-01-15

Neural differentiation of choroid plexus epithelial cells: role of human traumatic cerebrospinal fluid

Elham Hashemi1, Yousef Sadeghi1, Abbas Aliaghaei1, Afsoun Seddighi2, Abbas Piryaei1, Mehdi Eskandarian Broujeni3, Fatemeh Shaerzadeh4, Abdollah Amini1, Ramin Pouriran5   

  1. 1 Department of Anatomy and Cell Biology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; 
    2 Shohada Tajrish Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran; 
    3 Department of Stem Cells and Regenerative Medicine, Faculty of Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran; 
    4 Molecular Medicine Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran; 
    5 School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  • Received:2016-12-27 Online:2017-01-15 Published:2017-01-15
  • Contact: Yousef Sadeghi, M.D., Ph.D., dr.ysadeghi@yahoo.com.

摘要:

 

脉络丛产生脑脊液对中枢神经系统起到保护作用。为了评估非创伤性和创伤性脑脊液对多潜能干细胞样细胞脉络丛上皮细胞神经分化的影响,用来源于人体的非创伤性和创伤性脑脊液培养成年大鼠脉络丛上皮细胞。然后应用实时定量PCR检测培养3d后,脉络丛上皮细胞中神经发生特异性标志物巢蛋白和微管相关蛋白2和星形胶质细胞标志物胶质纤维酸性蛋白mRNA的表达。结果显示,相较于DMEM/F12培养的脉络丛上皮细胞,非创伤性和创伤性脑脊液干预使脉络丛上皮细胞中巢蛋白、微管相关蛋白2和胶质纤维酸性蛋白mRNA表达上升,且非创伤性脑脊液干预使脉络丛上皮细胞巢蛋白mRNA表达下降。说明病理条件下的创伤性脑脊液可以诱导脉络丛上皮细胞向神经元和胶质细胞样细胞方向分化。

 

ORCID:0000-0002-0889-2555(Yousef Sadeghi)

Abstract:

 

As the key producer of cerebrospinal fluid (CSF), the choroid plexus (CP) provides a unique protective system around the central nervous system. CSF components are not invariable and they can change based on the pathological conditions of the central nervous system. The purpose of the present study was to assess the effects of non-traumatic and traumatic CSF on the differentiation of multipotent stem-like cells of CP into the neural and/or glial cells. CP epithelial cells were isolated from adult male rats and treated with human non-traumatic and traumatic CSF. Alterations in mRNA expression of Nestin and microtubule-associated protein (MAP2), as the specific markers of neurogenesis, and astrocyte marker glial fibrillary acidic protein (GFAP) in cultured CP epithelial cells were evaluated using quantitative real-time PCR. The data revealed that treatment with CSF (non-traumatic and traumatic) led to increase in mRNA expression levels of MAP2 and GFAP. Moreover, expression of Nestin decreased in CP epithelial cells treated with non-traumatic CSF, while treatment with traumatic CSF significantly increased its mRNA level compared to the cells cultured only in DMEM/F12 as control group. In conclusion, CP epithelial cells contain multipotent stem-like cells which are inducible under pathological conditions including exposure to traumatic CSF because of its compositions.

Key words: nerve regeneration, choroid plexus, cerebrospinal fluid, stem cells, Nestin, microtubule-associated protein 2, glial fibrillary acidic protein, neurogenesis, central nervous system, neural regeneration