title: [Biocompatibility of surface modified PHBHHx with rat embryonic neural stem cells].
abstract: To study the attachment, proliferation and differentiation of neural stem cells (NSCs) on surface modified PHBHHx films and to establish the theory of PHBHHx application in NSCs-based brain tissue engineering. PHBHHx film was fabricated by a solution-casting method, and the morphology of the film was observed under scanning electron microscopy(SEM). The films were treated by NaOH or lipase, then the surface hydrophilic property was characterized using water contact angle measurement. NSCs were isolated from the cerebral cortex of rat embryos on embryonic day 14.5, and cultured on surface treated PHBHHx films. The morphology of NSCs attached on the film was visualized under SEM, and the survival and differentiation of NSCs were observed through immunocytochemical staining. Compared with the untreated PHBHHx films, the water contact angle of NaOH or lipase treated PHBHHx films decreased dramatically, and the number of NSCs attached significantly increased. NSCs survived well on treated PHBHHx films and differentiated into neurons and glial cells. The amelioration of hydrophilic property of PHBHHx film improved its biocompatibility with NSCs. PHBHHx can serve as a novel CNS tissue engineering biomaterial applied for NSCs transplantation, brain repairing and regeneration.
authors: Institute of Neurobiology, Xi 'an Jiaotong University College of Medicine, Xi'an 710061, Shaanxi, China.
authors: Haixia
authors: H
authors: Lü
authors: Zhiqian
authors: Z
authors: Yang
authors: Xiaoyun
authors: X
authors: Lu
authors: Mingchuan
authors: M
authors: Li
authors: Qian
authors: Q
authors: Jiao
authors: Xinlin
authors: X
authors: Chen
authors: Yuanyuan
authors: Y
authors: Wang
authors: Yali
authors: Y
authors: Zhang
mesh_terms: D020155:3-Hydroxybutyric Acid / Q000737:chemistry*; D000818:Animals; D002208:Caproates / Q000737:chemistry*; D002448:Cell Adhesion / Q000502:physiology; D002454:Cell Differentiation / Q000187:drug effects*; D049109:Cell Proliferation; D002478:Cells, Cultured; D002540:Cerebral Cortex / Q000166:cytology; D020099:Coated Materials, Biocompatible / Q000737:chemistry*; D053595:Embryonic Stem Cells / Q000166:cytology*; D005260:Female; D058953:Neural Stem Cells / Q000166:cytology*; D051381:Rats; D013499:Surface Properties; D023822:Tissue Engineering; D000094122:Polyhydroxybutyrates
chemical_list: D020155:3-Hydroxybutyric Acid; D002208:Caproates; D020099:Coated Materials, Biocompatible; C115940:poly(3-hydroxybutyrate-co-3-hydroxyhexanoate); D000094122:Polyhydroxybutyrates