TY - JOUR
T1 - Human mesenchymal stem cell behavior on segmented polyurethanes prepared with biologically active chain extenders
AU - Kavanaugh, Taylor E.
AU - Clark, Amy Y.
AU - Chan-Chan, Lerma H.
AU - Ramírez-Saldaña, Maricela
AU - Vargas-Coronado, Rossana F.
AU - Cervantes-Uc, José M.
AU - Hernández-Sánchez, Fernando
AU - García, Andrés J.
AU - Cauich-Rodríguez, Juan V.
PY - 2016/2/1
Y1 - 2016/2/1
N2 - © 2015, Springer Science+Business Media New York. The development of elastomeric, bioresorbable and biocompatible segmented polyurethanes (SPUs) for use in tissue-engineering applications has attracted considerable interest because of the existing need of mechanically tunable scaffolds for regeneration of different tissues, but the incorporation of osteoinductive molecules into SPUs has been limited. In this study, SPUs were synthesized from poly (ε-caprolactone)diol, 4,4′-methylene bis(cyclohexyl isocyanate) using biologically active compounds such as ascorbic acid, l-glutamine, β-glycerol phosphate, and dexamethasone as chain extenders. Fourier transform infrared spectroscopy (FTIR) revealed the formation of both urethanes and urea linkages while differential scanning calorimetry, dynamic mechanical analysis, X-ray diffraction and mechanical testing showed that these polyurethanes were semi-crystalline polymers exhibiting high deformations. Cytocompatibility studies showed that only SPUs containing β-glycerol phosphate supported human mesenchymal stem cell adhesion, growth, and osteogenic differentiation, rendering them potentially suitable for bone tissue regeneration, whereas other SPUs failed to support either cell growth or osteogenic differentiation, or both. This study demonstrates that modification of SPUs with osteogenic compounds can lead to new cytocompatible polymers for regenerative medicine applications.
AB - © 2015, Springer Science+Business Media New York. The development of elastomeric, bioresorbable and biocompatible segmented polyurethanes (SPUs) for use in tissue-engineering applications has attracted considerable interest because of the existing need of mechanically tunable scaffolds for regeneration of different tissues, but the incorporation of osteoinductive molecules into SPUs has been limited. In this study, SPUs were synthesized from poly (ε-caprolactone)diol, 4,4′-methylene bis(cyclohexyl isocyanate) using biologically active compounds such as ascorbic acid, l-glutamine, β-glycerol phosphate, and dexamethasone as chain extenders. Fourier transform infrared spectroscopy (FTIR) revealed the formation of both urethanes and urea linkages while differential scanning calorimetry, dynamic mechanical analysis, X-ray diffraction and mechanical testing showed that these polyurethanes were semi-crystalline polymers exhibiting high deformations. Cytocompatibility studies showed that only SPUs containing β-glycerol phosphate supported human mesenchymal stem cell adhesion, growth, and osteogenic differentiation, rendering them potentially suitable for bone tissue regeneration, whereas other SPUs failed to support either cell growth or osteogenic differentiation, or both. This study demonstrates that modification of SPUs with osteogenic compounds can lead to new cytocompatible polymers for regenerative medicine applications.
U2 - 10.1007/s10856-015-5654-5
DO - 10.1007/s10856-015-5654-5
M3 - Article
C2 - 26704555
SP - 1
EP - 11
JO - Journal of Materials Science: Materials in Medicine
JF - Journal of Materials Science: Materials in Medicine
SN - 0957-4530
ER -