Linked Life Data

21192640

Source:http://linkedlifedata.com/resource/pubmed/id/21192640

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2011-2-15
pubmed:abstractText
The formation of a suitable extracellular matrix (ECM) that promotes cell adhesion, organization, and proliferation is essential within biomaterial scaffolds for tissue engineering applications. In this work, short elastin mimetic peptide sequences, EM-19 and EM-23, were engineered to mimic the active motifs of human elastin in hopes that they can stimulate ECM development in synthetic polymer scaffolds. Each peptide was incubated with human aortic smooth muscle cells (SMCs) and elastin and desmosine production were quantified after 48 h. EM-19 inhibited elastin production through competitive binding phenomena with the elastin binding protein (EBP), whereas EM-23, which contains an RGDS domain, induces recovery of elastin production at higher concentrations, alluding to a higher binding affinity for the integrins than for the EBP and the involvement of integrins in elastin production. Colocalization of each peptide with the elastin matrix was confirmed using immunofluorescent techniques. Our data suggest that with appropriate cell-binding motifs, we can simulate the cross-linking of tropoelastin into the developing elastin matrix using short peptide sequences. The potential for increased cell adhesion and the incorporation of elastin chains into tissue engineering scaffolds make these peptides attractive bioactive moieties that can easily be incorporated into synthetic biomaterials to induce ECM formation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1526-4602
pubmed:author
pubmed:issnType
Electronic
pubmed:day
14
pubmed:volume
12
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
432-40
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Self-assembly of elastin-based peptides into the ECM: the importance of integrins and the elastin binding protein in elastic fiber assembly.
pubmed:affiliation
School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0100, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't