Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/24880
Título: | Vascular endothelial growth factor and fibroblast growth Factor-2 incorporation in starch-based bone tissue-engineered constructs promote the In vivo expression of neovascularization mediators |
Autor(es): | Santos, T. C. Morton, Tatjana J. Moritz, Martina Pfeifer, Sabine Reise, Kathrin Marques, A. P. Castro, António G. Reis, R. L. Griensven, Martijn van |
Palavras-chave: | FGF-2 Tissue-engineered constructs Vascularization VEGF |
Data: | Abr-2013 |
Editora: | Mary Ann Liebert Inc. |
Revista: | Tissue Engineering, Part A |
Resumo(s): | The ideal bone tissue-engineered (TE) construct remains to be found, although daily discoveries significantly contribute to improvements in the field and certainly have valuable long-term outcomes. In this work, different TE elements, aiming at bone TE applications, were assembled and its effect on the expression of several vas- cularization/angiogenesis mediators analyzed. Starch/polycaprolactone (SPCL) scaffolds, obtained by two different methodologies, were combined with fibrin sealant (Baxter), human adipose-derived stem cells (hASCs), and growth factors (vascular endothelial growth factor [VEGF] or fibroblast growth factor-2 [FGF-2]), and implanted in vascular endothelial growth factor receptor-2 (VEGFR2)-luc transgenic mice. The expression of VEGFR2 along the implantation of the designed constructs was followed using a luminescence device (XenogenÒ) and after 2 weeks, the explants were retrieved to perform histological analysis and reverse transcriptase–polymerase chain reaction for vascularization (VEGF and VEGFR1) and inflammatory (tumor necrosis factor-alpha, interleukin-4, and interferon-gamma) markers. It was showed that SPCL scaffolds ob- tained by wet spinning and by fiber bonding constitute an adequate support for hASCs. The assembled TE constructs composed by fibrin sealant, hASCs, VEGF, and FGF-2 induce only a mild inflammatory reaction after 2 weeks of implantation. Additionally, the release of VEGF and FGF-2 from the constructs enhanced the ex- pression of VEGFR2 and other important mediators in neovascularization (VEGF and VEGFR1). These results indicate the potential of VEGF or FGF-2 within a bone TE construct composed by wet-spun SPCL, fibrin sealant, and hASCs in promoting the vascularization of newly formed tissue. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/24880 |
DOI: | 10.1089/ten.tea.2010.0741 |
ISSN: | 2152-4947 |
e-ISSN: | 2152-4955 |
Versão da editora: | http://online.liebertpub.com/doi/abs/10.1089/ten.tea.2010.0741 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | 3B’s - Artigos em revistas/Papers in scientific journals ICVS - Artigos em revistas internacionais / Papers in international journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
15905-VEGF and FGF-2 incorporation in starch-based bone TE constructs promote in vivo expression of neovascularization mediaotrs_TE_2013.pdf | 800,71 kB | Adobe PDF | Ver/Abrir |