title: Biocompatibility and bioactivity of designer self-assembling nanofiber scaffold containing FGL motif for rat dorsal root ganglion neurons.
abstract: We report here a designer self-assembling peptide nanofiber scaffold developed specifically for nerve tissue engineering. We synthesized a peptide FGL-RADA containing FGL (EVYVVAENQQGKSKA), the motif of neural cell adhesion molecule (NCAM), and then attended to make a FGL nanofiber scaffold (FGL-NS) by assembling FGL-RADA with the peptide RADA-16 (AcN-RADARADARADARADA-CONH2). The microstructures of the scaffolds were tested using atomic force microscopy (AFM), and rheological properties of materials were accessed. Then we demonstrated the biocompatibility and bioactivity of FGL-NS for rat dorsal root ganglion neurons (DRGn). We found that the designer self-assembling peptide scaffold was noncytotoxic to neurons and able to promote adhesion and neurite sprouting of neurons. Our results indicate that the designer peptide scaffold containing FGL had excellent biocompatibility and bioactivity with adult sensory neurons and could be used for neuronal regeneration.
authors.affiliation: Department of Orthopaedics, Union Hospital, Tongji Medical College of Huazhong, University of Science and Technology, Wuhan, China.
authors.forename: Zhenwei
authors.initials: Z
authors.lastname: Zou
authors.forename: Qixin
authors.initials: Q
authors.lastname: Zheng
authors.forename: Yongchao
authors.initials: Y
authors.lastname: Wu
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Guo
authors.forename: Shuhua
authors.initials: S
authors.lastname: Yang
authors.forename: Jingfeng
authors.initials: J
authors.lastname: Li
authors.forename: Haitao
authors.initials: H
authors.lastname: Pan
mesh_terms: D020816:Amino Acid Motifs; D000818:Animals; D001672:Biocompatible Materials / Q000494:pharmacology*; D001681:Biological Assay; D002448:Cell Adhesion / Q000187:drug effects; D002452:Cell Count; D016923:Cell Death / Q000187:drug effects; D048430:Cell Shape / Q000187:drug effects; D002470:Cell Survival / Q000187:drug effects; D005727:Ganglia, Spinal / Q000166:cytology*; D020100:Hydrogels / Q000494:pharmacology; D008297:Male; D008422:Materials Testing; D018625:Microscopy, Atomic Force; D057139:Nanofibers / Q000737:chemistry* / Q000648:ultrastructure; D016501:Neurites / Q000187:drug effects / Q000378:metabolism; D009474:Neurons / Q000166:cytology / Q000187:drug effects* / Q000378:metabolism; D010455:Peptides / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D051381:Rats; D017207:Rats, Sprague-Dawley; D012212:Rheology / Q000187:drug effects; D054457:Tissue Scaffolds / Q000737:chemistry*
chemical_list: D001672:Biocompatible Materials; C520137:FGLL peptide; D020100:Hydrogels; D010455:Peptides