Linked Life Data

19201459

Source:http://linkedlifedata.com/resource/pubmed/id/19201459

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
13
pubmed:dateCreated
2009-3-3
pubmed:abstractText
We report here the design of a biomimetic nanofibrous hydrogel as a 3D-scaffold for anchorage-dependent cells. The peptide-based bioactive hydrogel is formed through molecular self-assembly and the building blocks are a mixture of two aromatic short peptide derivatives: Fmoc-FF (Fluorenylmethoxycarbonyl-diphenylalanine) and Fmoc-RGD (arginine-glycine-aspartate) as the simplest self-assembling moieties reported so far for the construction of small-molecule-based bioactive hydrogels. This hydrogel provides a highly hydrated, stiff and nanofibrous hydrogel network that uniquely presents bioactive ligands at the fibre surface; therefore it mimics certain essential features of the extracellular matrix. The RGD sequence as part of the Fmoc-RGD building block plays a dual role of a structural component and a biological ligand. Spectroscopic and imaging analysis using CD, FTIR, fluorescence, TEM and AFM confirmed that FF and RGD peptide sequences self-assemble into beta-sheets interlocked by pi-pi stacking of the Fmoc groups. This generates the cylindrical nanofibres interwoven within the hydrogel with the presence of RGDs in tunable densities on the fibre surfaces. This rapid gelling material was observed to promote adhesion of encapsulated dermal fibroblasts through specific RGD-integrin binding, with subsequent cell spreading and proliferation; therefore it may offer an economical model scaffold to 3D-culture other anchorage-dependent cells for in-vitro tissue regeneration.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1878-5905
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
30
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2523-30
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Self-assembled peptide-based hydrogels as scaffolds for anchorage-dependent cells.
pubmed:affiliation
Materials Science Centre, School of Materials, The University of Manchester, Grosvenor Street, Manchester M1 7HS, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't