中文摘要：

Objective: To detect the expressions of brain-derived neurotrophic factor(BDNF) and nerve growth factor(NGF) in purified rat choroid plexus epithelial cells in vitro. Methods: Primary and passage choroid plexus epithelial cells were obtained from newborn, one-day Sprague-Dawley rats. The expressions of BDNF and NGF were measured by qRT-PCR and Western blottingting. The secretions of BDNF and NGF were detected by ELISA. Cell supernatants of primary cells, purified cells and passage 1 cells were harvested. Results: The expression of BDNF in the purified cells was significantly lower than that in the primary cells(P<0.05), and it in the primary cells and the purified cells was significantly higher than that in the passage 1 cells(P<0.05). The expression of NGF was significantly higher in the purified cells than in the primary cells and the passage 1 cells(P<0.05). It in the passage 1 cells was significantly higher than that in the primary cells(P<0.05). Conclusion: The time of CPECs transplantation for central nervous system diseases should be selected based on their secretory function and features,which could lead to better and more effective treatment.

英文摘要：

Objective： To detect the expressions of brain-derived neurotrophic factor （BDNF） and nerve growth factor （NGF） in purified rat choroid plexus epithelial cells in vitro. Methods： Primary and passage choroid plexus epithelial cells were obtained from newborn, one-day Spragne-Dawley rats. The expressions of BDNF and NGF were measured by qRT-PCR and Western blottingting. The secretions of BDNF and NGF were detected by ELISA. Cell supematants of primary cells, purified cells and passage 1 cells were harvested. Results： The expression of BDNF in the purified cells was significantly lower than that in the primary cells （P〈0.05）, and it in the primary cells and the purified cells was significantly higher than that in the passage 1 cells （P〈0.05）. The expression of NGF was significantly higher in the purified cells than in the primary cells and the passage 1 cells （P〈0.05）. It in the passage 1 cells was significantly higher than that in the primary cells （P〈0.05）. Conclusion： The time of CPECs transplantation for central nervous system diseases should be selected based on their secretory function and features,which could lead to better and more effective treatment.