PMID- 25044338 OWN - NLM STAT- MEDLINE DCOM- 20151026 LR - 20181202 IS - 1552-4965 (Electronic) IS - 1549-3296 (Linking) VI - 103 IP - 3 DP - 2015 Mar TI - Poly (3-hydroxybutyrate-co-3-hydroxyhexanoate) scaffolds coated with PhaP-RGD fusion protein promotes the proliferation and chondrogenic differentiation of human umbilical cord mesenchymal stem cells in vitro. PG - 1169-75 LID - 10.1002/jbm.a.35265 [doi] AB - Human umbilical cord blood-derived mesenchymal stem cells (hUC-MSCs) have been widely used in tissue engineering. The aim of this study is to evaluate the ability of poly (3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx) scaffolds coated with polyhydroxyalkanoate binding protein fused with arginyl-glycyl-aspartic acid (PhaP-RGD) to promote the proliferation and chondrogenic differentiation of hUC-MSCs seeded on them. The PhaP-RGD fusion protein was expressed by Escherichia coli. PHBHHx films were coated with PhaP-RGD fusion protein and the physiochemical properties were examined. hUC-MSCs were seeded on PHBHHx films with or without PhaP-RGD precoating and tested for changes in morphology, viability, and chondrogenic differentiation. We found that PhaP-RGD-coated PHBHHx films had similar surface morphology to uncoated PHBHHx. The water contact angle of the coated PHBHHx surface was lower than that of the uncoated surface (10.63 degrees vs. 98.69 degrees ). At 7 and 14 days after seeding, the PhaP-RGD-coated PHBHHx group showed greater numbers of viable cells compared to the uncoated PHBHHx group. The expression levels of aggrecan and collagen II were enhanced in the PhaP-RGD-coated PHBHHx group relative to the uncoated PHBHHx group. Histological analysis using toluidine blue staining showed elevated formation of proteoglycan producing chondrocytes in the PhaP-RGD-coated PHBHHx group. Additionally, the synthesis of proteoglycan and collagen was significantly enhanced within the PhaP-RGD constructs. Taken together, PhaP-RGD coating promotes the proliferation and chondrogenic differentiation of hUC-MSCs seeded on PHBHHx films. PhaP-RGD-coated PHBHHx may be a useful scaffold for cartilage tissue engineering. CI - (c) 2014 Wiley Periodicals, Inc. FAU - Li, Xiaoli AU - Li X AD - Department of Dermatology, The Second Hospital, Xi'an Jiaotong University, Xi'an, China. FAU - Chang, Huimin AU - Chang H FAU - Luo, Huanan AU - Luo H FAU - Wang, Zhenghui AU - Wang Z FAU - Zheng, Guoxi AU - Zheng G FAU - Lu, Xiaoyun AU - Lu X FAU - He, Xijing AU - He X FAU - Chen, Fang AU - Chen F FAU - Wang, Ting AU - Wang T FAU - Liang, Jianmin AU - Liang J FAU - Xu, Min AU - Xu M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140718 PL - United States TA - J Biomed Mater Res A JT - Journal of biomedical materials research. Part A JID - 101234237 RN - 0 (Bacterial Proteins) RN - 0 (Caproates) RN - 0 (Coated Materials, Biocompatible) RN - 0 (DNA-Binding Proteins) RN - 0 (Oligopeptides) RN - 0 (PHAP protein, Bacteria) RN - 0 (Recombinant Fusion Proteins) RN - 0 (poly(3-hydroxybutyrate-co-3-hydroxyhexanoate)) RN - 78VO7F77PN (arginyl-glycyl-aspartic acid) RN - TZP1275679 (3-Hydroxybutyric Acid) SB - IM MH - 3-Hydroxybutyric Acid/*chemistry MH - Bacterial Proteins/*chemistry MH - Caproates/*chemistry MH - *Cell Differentiation MH - *Cell Proliferation MH - Cells, Cultured MH - *Chondrogenesis MH - Coated Materials, Biocompatible/chemistry MH - DNA-Binding Proteins/*chemistry MH - Humans MH - Mesenchymal Stem Cells/cytology/*metabolism MH - Oligopeptides/*chemistry MH - Recombinant Fusion Proteins MH - Tissue Scaffolds/*chemistry MH - Umbilical Cord/cytology/*metabolism OTO - NOTNLM OT - cartilage OT - polyhydroxyalkanoate OT - scaffold OT - surface modification OT - tissue engineering EDAT- 2014/07/22 06:00 MHDA- 2015/10/27 06:00 CRDT- 2014/07/22 06:00 PHST- 2014/05/01 00:00 [received] PHST- 2014/06/09 00:00 [revised] PHST- 2014/06/13 00:00 [accepted] PHST- 2014/07/22 06:00 [entrez] PHST- 2014/07/22 06:00 [pubmed] PHST- 2015/10/27 06:00 [medline] AID - 10.1002/jbm.a.35265 [doi] PST - ppublish SO - J Biomed Mater Res A. 2015 Mar;103(3):1169-75. doi: 10.1002/jbm.a.35265. Epub 2014 Jul 18.