中国神经再生研究(英文版) ›› 2012, Vol. 7 ›› Issue (36): 2907-2914.

• 原著:神经损伤修复保护与再生 • 上一篇    下一篇

四种细胞与脑脊液联合培养条件下培养液神经因子的表达

  

  • 收稿日期:2012-06-18 修回日期:2012-08-22 出版日期:2012-12-25 发布日期:2012-12-25

Secretion of nerve growth factor, brain-derived eurotrophic factor, and glial cell-line derived eurotrophic factor in co-culture of four cell types in erebrospinal fluid-containing medium

Sanjiang Feng1, Minghua Zhuang1, Rui Wu2   

  1. 1 Department of Neurosurgery, First Affiliated Hospital of Shantou University Medical College, Shantou 515041,Guangdong Province, China
    2 Department of Hematology, Second Affiliated Hospital of Shantou University Medical College, Shantou 515041,Guangdong Province,China
  • Received:2012-06-18 Revised:2012-08-22 Online:2012-12-25 Published:2012-12-25
  • Contact: Corresponding author:Minghua Zhuang, M.D.,Professor, Chief physician,Department of Neurosurgery,First Affiliated Hospital of Shantou University Medical College, Shantou 515041,Guangdong Province, China mhzhuang@stu.edu.cn
  • About author:Sanjiang Feng★, Master,Department of Neurosurgery,First Affiliated Hospital of Shantou University Medical College (Working in the First People’s Hospital of Nanyang City), Shantou 515041,Guangdong Province, China

关键词: olfactory ensheathing cells, Schwann cells, amniotic epithelial cells, vascular endothelial cells;nerve growth factor, brain-derived neurotrophic factor, glial cell line-derived neurotrophic factor;cerebrospinal fluid, regeneration, neural regeneration

Abstract:

The present study co-cultured human embryonic olfactory ensheathing cells, human Schwann cells, human amniotic epithelial cells and human vascular endothelial cells in complete culture mediumcontaining cerebrospinal fluid. Enzyme linked immunosorbent assay was used to detect nerve growth factor, brain-derived neurotrophic factor, and glial cell line-derived neurotrophic factor secretion in the supernatant of co-cultured cells. Results showed that the number of all cell types reached a peak at 7–10 days, and the expression of nerve growth factor, brain-derived neurotrophic factor, and glial cell line-derived neurotrophic factor peaked at 9 days. Levels of secreted nerve growth factor were four-fold higher than brain-derived neurotrophic factor, which was three-fold higher than glial cell line-derived neurotrophic factor. Increasing concentrations of cerebrospinal fluid (10%, 20% and 30%) in the growth medium caused a decrease of neurotrophic factor secretion.Results indicated co-culture of human embryonic olfactory ensheathing cells, human Schwann cells,human amniotic epithelial cells and human vascular endothelial cells improved the expression of nerve growth factor, brain-derived neurotrophic factor, and glial cell line-derived neurotrophic factor.The reduction of cerebrospinal fluid extravasation at the transplant site after spinal cord injury is beneficial for the survival and secretion of neurotrophic factors from transplanted cells.

Key words: olfactory ensheathing cells, Schwann cells, amniotic epithelial cells, vascular endothelial cells;nerve growth factor, brain-derived neurotrophic factor, glial cell line-derived neurotrophic factor;cerebrospinal fluid, regeneration, neural regeneration