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Dose and Timing of N-Cadherin Mimetic Peptides Regulate MSC Chondrogenesis within Hydrogels.

Adv Healthc Mater. 2018; 
KwonMi Y,VegaSebastián L,GramlichWilliam M,KimMinwook,MauckRobert L,BurdickJas
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Peptide Synthesis Peptide Design and Coupling to MeHA: Stable NCad mimetic HAV peptide (HAV, Ac-HAVDIGGGC), stable scramble (Scr, Ac-AGVGDHIGC), ADAM10-cleavable transient HAV (tHAV, Ac-HAVDIGGGPRAEA↓LKGGGC), transient scramble (tScr, Ac-AGVGDHIGPRAEA↓LKGGGC), and stable length-matched HAV (LHAV, Ac-HAVDIGGGAAKREPLGGGC) peptides (stable peptides827.9 g mol−1 , transient peptides 1765.0 g mol−1 ) with a cysteine residue at the C-terminal end were obtained from GenScript. Get A Quote

摘要

The transmembrane glycoprotein N-cadherin (NCad) mediates cell-cell interactions found during mesenchymal condensation and chondrogenesis. Here, NCad-derived peptides (i.e., HAV) are incorporated into hyaluronic acid (HA) hydrogels with encapsulated mesenchymal stem cells (MSCs). Since the dose and timing of NCad signaling are dynamic, HAV peptide presentation is tuned via alterations in peptide concentration and incorporation of an ADAM10-cleavable domain between the hydrogel and the HAV motif, respectively. HA hydrogels functionalized with HAV result in dose-dependent increases in early chondrogenesis of encapsulated MSCs and resultant cartilage matrix production. For example, type II collagen and g... More

关键词

N-cadherin,cartilage,chondrogenesis,hydrogels,tissue enginee
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