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Effects of the Diameter and Alignment of Electrospun tsf nanofibers on Neuronal Differentiation of Human Embryonic Stem Cells

Effects of the Diameter and Alignment of Electrospun TSF Nan...

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“细胞活动生命活力”——中国细胞生物学学会全体会员代...

作者： Rong Ye,Junxia Wang,Jing Qu,Huihui Wang,Xiaojing Xu,Huanxiang Zhang Medical College of Soochow University,Department of Cell Biology,Jiangsu Province Key Laboratory of Stem Cell Research,Ren Ai Road 199,Suzhou Industrial Park,Suzhou 215123,China

While much effort has been devoted to the delineation of materials that are suitable for neuronal differentiation of human embryonic stem cells(hESCs),how material topographical features,especially the nanofiber diameter and alignment, influence the growth and neuronal differentiation of hESCs,however,is still *** the present study,we seeded hESCs-derived neural precursors on random or aligned tussah silk fibroin(tsf) electrospun nanofibers with diameters of 400 nm and 800 nm and found that the diameter and alignment of tsf scaffolds significantly influence the growth and differentiation of hESCs-derived neural *** results show that hESCs-derived neurons display good compatibility with tsf scaffolds:tsf nanofibers not only support the growth the hESCs,but guide the growth and migration of these cells and the neurite outgrowth of hESCs-derived neurons as ***,compared with cells on 800 nm aligned tsf fibers, hESCs on 400 nm aligned tsf show greater neuronal differentiation efficiency and hESCs-derived neurons on these fibers possess longer neurite ***,the property of the electrospun tsf nanofibers that can guide and direct hESC migration and differentiation,with a diameter of 400 nm in particular,makes these materials the promising candidates in nerve tissue engineering for therapeutic approaches to promote the regeneration of CNS after injury.

关键词： Human embryonic stem cells tsf nanofibers Neuronal differentiation Neurite outgrowth Tissue engineering

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