PMID- 23564567 OWN - NLM STAT- MEDLINE DCOM- 20140915 LR - 20181203 IS - 1552-4965 (Electronic) IS - 1549-3296 (Linking) VI - 102 IP - 3 DP - 2014 Mar TI - Evaluation of in vitro and in vivo osteogenic differentiation of nano-hydroxyapatite/chitosan/poly(lactide-co-glycolide) scaffolds with human umbilical cord mesenchymal stem cells. PG - 760-8 LID - 10.1002/jbm.a.34747 [doi] AB - We aimed to evaluate the feasibility of the application of the nano-hydroxyapatite/chitosan/poly(lactide-co-glycolide) (nHA/CS/PLGA) scaffold seeded with human umbilical cord mesenchymal stem cells (hUCMSCs) in bone tissue engineering. We prepared the nHA/CS/PLGA, nHA/PLGA, CS/PLGA, and PLGA scaffolds, and tested their mechanical strength. We analyzed the surface antigen markers of hUCMSCs to determine their capability to differentiate into osteoblasts, chondrocytes, and adipocytes. The growth of hUCMSCs on the four types of scaffold was assayed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay (MTT assay) and observed using scanning electron microscopy (SEM). Quantitative analysis of alkaline phosphatase (ALP) activity and osteocalcin (OCN) content, as well as the semi-quantitative reverse transcription-polymerase chain reaction (RT-PCR) was performed. After 21 days, the subcutaneous implantations of the scaffolds samples seeded with hUCMSCs into nude mice were analyzed using immunohistochemical staining. The results showed that the mechanical strength of the nHA/CS/PLGA scaffold was enhanced. Furthermore, the nHA/CS/PLGA scaffolds were the most suitable for the adhesion, proliferation, and osteogenic differentiation of hUCMSCs in vitro and nude mouse subcutaneous implantation. The enhanced osteogenic inductivity of the nHA/CS/PLGA scaffolds for hUCMSCs might result from the addition of nHA and CS. CI - Copyright (c) 2013 Society of Plastics Engineers. FAU - Wang, Fei AU - Wang F AD - The Department of Orthodontics, the Affiliated Stomatological Hospital of Xi'an Jiaotong University, Xian, 710004, China. FAU - Zhang, Yin-Cheng AU - Zhang YC FAU - Zhou, Hong AU - Zhou H FAU - Guo, Yu-Cheng AU - Guo YC FAU - Su, Xiao-Xia AU - Su XX LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130601 PL - United States TA - J Biomed Mater Res A JT - Journal of biomedical materials research. Part A JID - 101234237 RN - 34346-01-5 (Polyglactin 910) RN - 9012-76-4 (Chitosan) RN - 91D9GV0Z28 (Durapatite) SB - IM MH - Animals MH - Cell Differentiation MH - Cells, Cultured MH - Chitosan/*chemistry MH - Durapatite/*chemistry MH - Humans MH - Infant MH - Mesenchymal Stem Cells/*cytology MH - Mice MH - Mice, Nude MH - Nanostructures/*chemistry/ultrastructure MH - Osteogenesis MH - Polyglactin 910/*chemistry MH - Tissue Engineering MH - Tissue Scaffolds/*chemistry MH - Umbilical Cord/*cytology OTO - NOTNLM OT - bone marrow mesenchymal stem cells OT - bone tissue engineering OT - chitosan OT - nano-hydroxyapatite OT - poly(lactide-co-glycolide) OT - umbilical cord mesenchymal stem cells EDAT- 2013/04/09 06:00 MHDA- 2014/09/16 06:00 CRDT- 2013/04/09 06:00 PHST- 2013/01/05 00:00 [received] PHST- 2013/03/17 00:00 [revised] PHST- 2013/04/02 00:00 [accepted] PHST- 2013/04/09 06:00 [entrez] PHST- 2013/04/09 06:00 [pubmed] PHST- 2014/09/16 06:00 [medline] AID - 10.1002/jbm.a.34747 [doi] PST - ppublish SO - J Biomed Mater Res A. 2014 Mar;102(3):760-8. doi: 10.1002/jbm.a.34747. Epub 2013 Jun 1.