Neural Regeneration Research ›› 2017, Vol. 12 ›› Issue (1): 84-89.doi: 10.4103/1673-5374.198989

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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.

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