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Mehrban N, Zhu B, Tamagnini F, Young FI, Wasmuth A, Hudson KL, Thomson AR, Birchall MA, Randall AD, Song B, Woolfson DN. Functionalized α-Helical Peptide Hydrogels for Neural Tissue Engineering. ACS Biomater Sci Eng 2015; 1:431-439. [PMID: 26240838 PMCID: PMC4517957 DOI: 10.1021/acsbiomaterials.5b00051] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Accepted: 04/28/2015] [Indexed: 12/31/2022]
Abstract
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Trauma to the central and peripheral
nervous systems often lead
to serious morbidity. Current surgical methods for repairing or replacing
such damage have limitations. Tissue engineering offers a potential
alternative. Here we show that functionalized α-helical-peptide
hydrogels can be used to induce attachment, migration, proliferation
and differentiation of murine embryonic neural stem cells (NSCs).
Specifically, compared with undecorated gels, those functionalized
with Arg-Gly-Asp-Ser (RGDS) peptides increase the proliferative activity
of NSCs; promote their directional migration; induce differentiation,
with increased expression of microtubule-associated protein-2, and
a low expression of glial fibrillary acidic protein; and lead to the
formation of larger neurospheres. Electrophysiological measurements
from NSCs grown in RGDS-decorated gels indicate developmental progress
toward mature neuron-like behavior. Our data indicate that these functional
peptide hydrogels may go some way toward overcoming the limitations
of current approaches to nerve-tissue repair.
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Affiliation(s)
- Nazia Mehrban
- School of Chemistry, University of Bristol , Bristol BS8 1TS, United Kingdom
| | - Bangfu Zhu
- School of Dentistry, Cardiff University , Cardiff CF10 3XQ, United Kingdom
| | | | - Fraser I Young
- School of Dentistry, Cardiff University , Cardiff CF10 3XQ, United Kingdom
| | - Alexandra Wasmuth
- School of Chemistry, University of Bristol , Bristol BS8 1TS, United Kingdom
| | - Kieran L Hudson
- School of Chemistry, University of Bristol , Bristol BS8 1TS, United Kingdom
| | - Andrew R Thomson
- School of Chemistry, University of Bristol , Bristol BS8 1TS, United Kingdom
| | - Martin A Birchall
- University College London Ear Institute , London WC1X 8DA, United Kingdom
| | - Andrew D Randall
- Medical School, University of Exeter , Exeter EX4 4PS, United Kingdom
| | - Bing Song
- School of Dentistry, Cardiff University , Cardiff CF10 3XQ, United Kingdom
| | - Derek N Woolfson
- School of Chemistry, University of Bristol , Bristol BS8 1TS, United Kingdom ; School of Biochemistry, University of Bristol , Bristol BS8 1TD, United Kingdom ; BrisSynBio, University of Bristol , Bristol BS8 1TQ, United Kingdom
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