Growth pattern of rat dorsal root ganglion neurons cultured on random or aligned electrospun polymethylmethacrylate nanofibers plus its microstructure research
重庆医科大学学报2016年41卷第5期 页码:438-442
作者机构:
1. 重庆医科大学附属第一医院神经外科
2. 重庆大学生物工程学院生物流变科学与技术教育部重点实验室
3. 重庆市中山医院药剂科
作者简介:
基金信息:
国家自然科学基金青年基金资助项目(编号:81100906);重庆市科委前沿与应用基础研究计划资助项目(编号:cstc2014jcyj A 10061);国家临床重点专科建设经费资助项目(编号:财社【2011】170);重庆大学“生物流变科学与技术”教育部重点实验室访问学者基金资助项目(编号:CQKLBST-2014-004)
Xia Haijian, Sun Xiaochuan, Wang Bochu, et al. Growth pattern of rat dorsal root ganglion neurons cultured on random or aligned electrospun polymethylmethacrylate nanofibers plus its microstructure research[J]. Journal of Chongqing Medical University, 2016,41(5):438-442.
Xia Haijian, Sun Xiaochuan, Wang Bochu, et al. Growth pattern of rat dorsal root ganglion neurons cultured on random or aligned electrospun polymethylmethacrylate nanofibers plus its microstructure research[J]. Journal of Chongqing Medical University, 2016,41(5):438-442. DOI: 10.13406/j.cnki.cyxb.000738.
Objective:To evaluate the growth pattern of rat dorsal root ganglion neurons(DRGn)cultured on random or aligned polymethylmethacrylate(PMMA)electrospun nanofibers and to exhibit the microstructure between neurites and fibers. Methods:Random and aligned electrospun nanofibers were fabricated to culture DRGn on them. The growth manner of DRGn on different substrates were showed
with transfected GFP as the reporting gene and PMMA film as the control. The microstructure between neurites and fibers were analyzed by scanning electron microscope(SEM). Results:The diameters of the random and aligned PMMA electrospun nanofibers were(0.49±0.04)μm and(0.47±0.03)μm
without statistical differences(t=1.079
P=0.474). DRGn could adhere to and grow on the nanofibers;on 2nd day of culture
no difference in average neurite number(F=8.23
P=0.138)and neurite length(F=5.47
P =0.195)was found. On aligned nanofibers DRGn could form aligned neurites along the orientation of substrate nanofi-bers. Through analysis of SEM
it was revealed that PMMA electrospun nanofibers had strong contact guidance on the neurite growth of DRGn
and DRGn could also perceive and response to local topographic surrounding sensitively. Conclusion:PMMA electrospun nanofibers is potential scaffold after neural injury.