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- W2067202327 abstract "A poly (lactide‐ co ‐glycolide) (PLGA) scaffold filled with fibrin gel, mesenchymal stem cells (MSCs) and poly(ethylene oxide)‐ b ‐poly ( L ‐lysine) (PEO‐ b ‐PLL)/pDNA‐TGF‐β1 complexes was fabricated and applied in vivo for synchronized regeneration of cartilage and subchondral bone. The PEO‐ b ‐PLL/pDNA‐TGF‐β1 complexes could transfect MSCs in vitro to produce TGF‐β1 in situ and up regulate the expression of chondrogenesis‐related genes in the construct. The expression of heterogeneous TGF‐β1 in vivo declined along with the prolongation of implantation time, and lasted for 3 and 6 weeks in the mRNA and protein levels, respectively. The constructs (Experimental group) of PLGA/fibrin gel/MSCs/(PEO‐ b ‐PLL/pDNA‐TGF‐β1 complexes) were implanted into the osteochondral defects of rabbits to restore the functional cartilages, with gene‐absent constructs as the Control. After 12 weeks, the Experimental group regenerated the neo‐cartilage and subchondral bone with abundant deposition of glycosaminoglycans (GAGs) and type II collagen. The regenerated tissues had good integration with the host tissues too. By contrast, the defects were only partially repaired by the Control constructs. qRT‐PCR results demonstrated that expression of the chondrogenesis‐marker genes in the Experimental group was significantly higher than that of the Control group, and was very close to that of the normal cartilage tissue. © 2013 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 101A: 3097–3108, 2013." @default.
- W2067202327 created "2016-06-24" @default.
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- W2067202327 date "2013-03-25" @default.
- W2067202327 modified "2023-10-16" @default.
- W2067202327 title "Fabrication of poly(lactide‐<i>co</i>‐glycolide) scaffold filled with fibrin gel, mesenchymal stem cells, and poly(ethylene oxide)‐<i>b</i>‐poly(<scp>L</scp>‐lysine)/TGF‐β1 plasmid DNA complexes for cartilage restoration <i>in vivo</i>" @default.
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- W2067202327 doi "https://doi.org/10.1002/jbm.a.34618" @default.
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