PMID- 22480947 OWN - NLM STAT- MEDLINE DCOM- 20121001 LR - 20220330 IS - 1878-7568 (Electronic) IS - 1742-7061 (Linking) VI - 8 IP - 7 DP - 2012 Jul TI - Enhancement of bone regeneration through facile surface functionalization of solid freeform fabrication-based three-dimensional scaffolds using mussel adhesive proteins. PG - 2578-86 LID - 10.1016/j.actbio.2012.03.041 [doi] AB - Solid freeform fabrication (SFF) is recognized as a promising tool for creating tissue engineering scaffolds due to advantages such as superior interconnectivity and highly porous structure. Despite structural support for SFF-based three-dimensional (3-D) scaffolds that can lead to tissue regeneration, lack of cell recognition motifs and/or biochemical factors has been considered a limitation. Previously, recombinant mussel adhesive proteins (MAPs) were successfully demonstrated to be functional cell adhesion materials on various surfaces due to their peculiar adhesive properties. Herein, MAPs were applied as surface functionalization materials to SFF-based 3-D polycaprolactone/poly(lactic-co-glycolic acid) scaffolds. We successfully coated MAPs onto scaffold surfaces by simply dipping the scaffolds into the MAP solution, which was confirmed through X-ray photoelectron spectroscopy and scanning electron microscopy analyses. Through in vitro study using human adipose tissue-derived stem cells (hADSCs), significant enhancement of cellular activities such as attachment, proliferation, and osteogenic differentiation was observed on MAP-coated 3-D scaffolds, especially on which fused arginine-glycine-aspartic acid peptides were efficiently exposed. In addition, we found that in vivo hADSC implantation with MAP-coated scaffolds enhanced bone regeneration in a rat calvarial defect model. These results collectively demonstrate that facile surface functionalization of 3-D scaffolds using MAP would be a promising strategy for successful tissue engineering applications. CI - Copyright (c) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. FAU - Hong, Jung Min AU - Hong JM AD - Department of Mechanical Engineering, Pohang University of Science and Technology, Republic of Korea. FAU - Kim, Bum Jin AU - Kim BJ FAU - Shim, Jin-Hyung AU - Shim JH FAU - Kang, Kyung Shin AU - Kang KS FAU - Kim, Ki-Joo AU - Kim KJ FAU - Rhie, Jong Won AU - Rhie JW FAU - Cha, Hyung Joon AU - Cha HJ FAU - Cho, Dong-Woo AU - Cho DW LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120402 PL - England TA - Acta Biomater JT - Acta biomaterialia JID - 101233144 RN - 0 (Coated Materials, Biocompatible) RN - 0 (Oligopeptides) RN - 0 (Polyesters) RN - 0 (Proteins) RN - 0 (adhesive protein, mussel) RN - 1SIA8062RS (Polylactic Acid-Polyglycolic Acid Copolymer) RN - 24980-41-4 (polycaprolactone) RN - 26009-03-0 (Polyglycolic Acid) RN - 33X04XA5AT (Lactic Acid) RN - 78VO7F77PN (arginyl-glycyl-aspartic acid) SB - IM MH - Adipose Tissue/cytology MH - Animals MH - Bone Regeneration/*drug effects MH - Cell Adhesion/drug effects MH - Cell Differentiation/drug effects MH - Cell Proliferation/drug effects MH - Coated Materials, Biocompatible/pharmacology MH - Humans MH - Lactic Acid/pharmacology MH - Male MH - Oligopeptides/pharmacology MH - Osteogenesis/drug effects MH - Photoelectron Spectroscopy MH - Polyesters/pharmacology MH - Polyglycolic Acid/pharmacology MH - Polylactic Acid-Polyglycolic Acid Copolymer MH - Proteins/*pharmacology MH - Rats MH - Rats, Wistar MH - Skull/diagnostic imaging/drug effects/pathology MH - Stem Cells/cytology/drug effects/metabolism MH - Surface Properties/drug effects MH - Tissue Engineering/*methods MH - Tissue Scaffolds/*chemistry MH - X-Ray Microtomography EDAT- 2012/04/07 06:00 MHDA- 2012/10/02 06:00 CRDT- 2012/04/07 06:00 PHST- 2011/12/22 00:00 [received] PHST- 2012/03/03 00:00 [revised] PHST- 2012/03/27 00:00 [accepted] PHST- 2012/04/07 06:00 [entrez] PHST- 2012/04/07 06:00 [pubmed] PHST- 2012/10/02 06:00 [medline] AID - S1742-7061(12)00136-5 [pii] AID - 10.1016/j.actbio.2012.03.041 [doi] PST - ppublish SO - Acta Biomater. 2012 Jul;8(7):2578-86. doi: 10.1016/j.actbio.2012.03.041. Epub 2012 Apr 2.