Abstract
Additive manufacturing enables the fabrication of scaffolds with defined architecture. Versatile printing technologies such as extrusion-based 3D plotting allow in addition the incorporation of biological components increasing the capability to restore functional tissues. We have recently described the fabrication of calcium phosphate cement (CPC) scaffolds by 3D plotting of an oil-based CPC paste under mild conditions. In the present study, we have developed a strategy for growth factor loading based on multichannel plotting: a biphasic scaffold design was realised combining CPC with VEGF-laden, highly concentrated hydrogel strands. As hydrogel component, alginate and an alginate–gellan gum blend were evaluated; the blend exhibited a more favourable VEGF release profile and was chosen for biphasic scaffold fabrication. After plotting, two-step post-processing was performed for both, hydrogel crosslinking and CPC setting, which was shown to be compatible with both materials. Finally, a scaffold was designed and fabricated which can be applied for testing in a rat critical size femur defect. Optimization of CPC plotting enabled the fabrication of highly resolved structures with strand diameters of only 200 µm. Micro-computed tomography revealed a precise strand arrangement and an interconnected pore space within the biphasic scaffold even in swollen state of the hydrogel strands.
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Akkineni, A. R., T. Ahlfeld, A. Lode, and M. Gelinsky. Highly concentrated alginate/gellan gum composites for 3d plotting of complex tissue engineering scaffolds. Polymers 8:170, 2016.
Akkineni, A. R., Y. Luo, M. Schumacher, B. Nies, A. Lode, and M. Gelinsky. 3D plotting of growth factor loaded calcium phosphate cement scaffolds. Acta Biomater. 27:264–274, 2015.
Almeida, C. R., T. Serra, M. I. Oliveira, J. A. Planell, M. A. Barbosa, and M. Navarro. Impact of 3-d printed pla-and chitosan-based scaffolds on human monocyte/macrophage responses: unraveling the effect of 3-d structures on inflammation. Acta Biomater. 10:613–622, 2014.
Bergmann, C. J., J. C. Odekerken, T. J. Welting, F. Jungwirth, D. Devine, L. Bouré, S. Zeiter, L. W. van Rhijn, R. Telle, and H. Fischer. Calcium phosphate based three-dimensional cold plotted bone scaffolds for critical size bone defects. Biomed. Res. Int. 2014. doi:10.1155/2014/852610.
Butscher, A., M. Bohner, N. Doebelin, L. Galea, O. Loeffel, and R. Müller. Moisture based three-dimensional printing of calcium phosphate structures for scaffold engineering. Acta Biomater. 9:5369–5378, 2013.
Castilho, M., C. Moseke, A. Ewald, U. Gbureck, J. Groll, I. Pires, J. Teßmar, and E. Vorndran. Direct 3d powder printing of biphasic calcium phosphate scaffolds for substitution of complex bone defects. Biofabrication 6:015006, 2014.
Detsch, R., I. Dieser, U. Deisinger, F. Uhl, S. Hamisch, G. Ziegler, and G. Lipps. Biofunctionalization of dispense-plotted hydroxyapatite scaffolds with peptides: quantification and cellular response. J. Biomed. Mater. Res. A 92:493–503, 2010.
Fedorovich, N. E., J. R. De Wijn, A. J. Verbout, J. Alblas, and W. J. Dhert. Threedimensional fiber deposition of cell-laden, viable, patterned constructs for bone tissue printing. Tissue Eng. Part A 14:127–133, 2008.
Franco, J., P. Hunger, M. E. Launey, A. P. Tomsia, and E. Saiz. Direct write assembly of calcium phosphate scaffolds using a water-based hydrogel. Acta Biomater. 6:218–228, 2010.
Ginebra, M.-P., C. Canal, M. Espanol, D. Pastorino, and E. B. Montufar. Calcium phosphate cements as drug delivery materials. Adv. Drug. Deliv. Rev. 64:1090–1110, 2012.
Ginebra, M.-P., M. Espanol, E. B. Montufar, R. A. Perez, and G. Mestres. New processing approaches in calcium phosphate cements and their applications in regenerative medicine. Acta Biomater. 6:2863–2873, 2010.
Ginebra, M.-P., T. Traykova, and J. Planell. Calcium phosphate cements as bone drug delivery systems: a review. J. Control. Release 113:102–110, 2006.
Habibovic, P., U. Gbureck, C. J. Doillon, D. C. Bassett, C. A. van Blitterswijk, and J. E. Barralet. Osteoconduction and osteoinduction of low-temperature 3d printed bioceramic implants. Biomaterials 29:944–953, 2008.
Habraken, W., J. Wolke, A. Mikos, and J. Jansen. Plga microsphere/calcium phosphate cement composites for tissue engineering: in vitro release and degradation characteristics. J. Biomater. Sci. Polym. Ed. 19(9):1171–1188, 2008.
Heinemann, S., S. Rössler, M. Lemm, M. Ruhnow, and B. Nies. Properties of injectable ready-to-use calcium phosphate cement based on water-immiscible liquid. Acta Biomater. 9:6199–6207, 2013.
Hutmacher, D. W., J. T. Schantz, C. X. F. Lam, K. C. Tan, and T. C. Lim. State of the art and future directions of scaffold-based bone engineering from a biomaterials perspective. J. Tissue Eng. Regen Med. 1:245–260, 2007.
Khairoun, I., M. Boltong, F. Driessens, and J. Planell. Effect of calcium carbonate on clinical compliance of apatitic calcium phosphate bone cement. J. Biomed. Mater. Res. 38:356–360, 1997.
Knaack, S., A. Lode, B. Hoyer, A. Rösen-Wolff, A. Gabrielyan, I. Roeder, and M. Gelinsky. Heparin modification of a biomimetic bone matrix for controlled release of VEGF. J Biomed Mater Res A 102:3500–3511, 2014.
Kundu, J., J.-H. Shim, J. Jang, S.-W. Kim, and D.-W. Cho. An additive manufacturing based PCL–alginate–chondrocyte bioprinted scaffold for cartilage tissue engineering. J. Tissue Eng. Regen. Med. 9:1286–1297, 2015.
Li, C., L. Gao, F. Chen, and C. Liu. Fabrication of mesoporous calcium silicate/calcium phosphate cement scaffolds with high mechanical strength by freeform fabrication system with micro-droplet jetting. J. Mater. Sci. 50:7182–7191, 2015.
Lode, A., K. Meissner, Y. Luo, F. Sonntag, S. Glorius, B. Nies, C. Vater, F. Despang, T. Hanke, and M. Gelinsky. Fabrication of porous scaffolds by three-dimensional plotting of a pasty calcium phosphate bone cement under mild conditions. J. Tissue Eng. Regen. Med. 8:682–693, 2014.
Luo, Y., A. Lode, A. R. Akkineni, and M. Gelinsky. Concentrated gelatin/alginate composites for fabrication of predesigned scaffolds with a favorable cell response by 3d plotting. RSC Adv. 5:43480–43488, 2015.
Luo, Y., A. Lode, F. Sonntag, B. Nies, and M. Gelinsky. Well-ordered biphasic calcium phosphate–alginate scaffolds fabricated by multi-channel 3d plotting under mild conditions. J. Mater. Chem. B 1:4088–4098, 2013.
Maazouz, Y., E. Montufar, J. Guillem-Marti, I. Fleps, C. Öhman, C. Persson, and M. Ginebra. Robocasting of biomimetic hydroxyapatite scaffolds using self-setting inks. J. Mater. Chem. B 2:5378–5386, 2014.
Malda, J., J. Visser, F. P. Melchels, T. Jüngst, W. E. Hennink, W. J. Dhert, J. Groll, and D. W. Hutmacher. 25th anniversary article: engineering hydrogels for biofabrication. Adv. Mater. 25:5011–5028, 2013.
Miranda, P., E. Saiz, K. Gryn, and A. P. Tomsia. Sintering and robocasting of tricalcium phosphate scaffolds for orthopaedic applications. Acta Biomater. 2:457–466, 2006.
Odedra, D., L. L. Y. Chiu, M. Shoichet, and M. Radisic. Endothelial cells guided by immobilized gradients of vascular endothelial growth factor on porous collagen scaffolds. Acta Biomater. 7:3027–3035, 2011.
Park, S., G. Kim, Y. C. Jeon, Y. Koh, and W. Kim. 3d polycaprolactone scaffolds with controlled pore structure using a rapid prototyping system. J. Mater. Sci. Mater. Med. 20:229–234, 2009.
Poldervaart, M. T., H. Wang, J. van der Stok, H. Weinans, S. C. Leeuwenburgh, F. C. Öner, W. J. Dhert, and J. Alblas. Sustained release of bmp-2 in bioprinted alginate for osteogenicity in mice and rats. PLoS One 8:e72610, 2013.
Schütz, K., A.-M. Placht, B. Paul, S. Brüggemeier, M. Gelinsky, and A. Lode. Threedimensional plotting of a cell-laden alginate/methylcellulose blend: towards biofabrication of tissue engineering constructs with clinically relevant dimensions. J. Tissue Eng. Regen. Med. 2015. doi:10.1002/term.2058.
Schuurman, W., P. A. Levett, M. W. Pot, P. R. van Weeren, W. J. Dhert, D. W. Hutmacher, F. P. Melchels, T. J. Klein, and J. Malda. Gelatin-methacrylamide hydrogels as potential biomaterials for fabrication of tissue-engineered cartilage constructs. Macromol. Biosci. 13:551–561, 2013.
Seitz, H., U. Deisinger, B. Leukers, R. Detsch, and G. Ziegler. Different calcium phosphate granules for 3-d printing of bone tissue engineering scaffolds. Adv. Eng. Mater. 11:B41–B46, 2009.
Smith, A. M., R. Shelton, Y. Perrie, and J. J. Harris. An initial evaluation of gellan gum as a material for tissue engineering applications. J. Biomater. Appl. 22:241–254, 2007.
Visser, J., B. Peters, T. J. Burger, J. Boomstra, W. J. Dhert, F. P. Melchels, and J. Malda. Biofabrication of multi-material anatomically shaped tissue constructs. Biofabrication 5:035007, 2013.
Wu, C., Y. Luo, G. Cuniberti, Y. Xiao, and M. Gelinsky. Three-dimensional printing of hierarchical and tough mesoporous bioactive glass scaffolds with a controllable pore architecture, excellent mechanical strength and mineralization ability. Acta Biomater. 7:2644–2650, 2011.
Acknowledgments
The project was supported by funding of the Saxon Ministry for Higher Education and Arts (SMWK; Contract No. 4-7531.60/29/24) and the Excellence Initiative by the German Federal and State Governments (Institutional Strategy, measure “support the best”). We thank Sophie Brüggemeier for excellent technical assistance, Matthias Schumacher for fruitful discussions and Stefan Odenbach and co-workers (Technische Universität Dresden) for support with µ-CT measurements.
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Associate Editor Jos Malda oversaw the review of this article.
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Ahlfeld, T., Akkineni, A.R., Förster, Y. et al. Design and Fabrication of Complex Scaffolds for Bone Defect Healing: Combined 3D Plotting of a Calcium Phosphate Cement and a Growth Factor-Loaded Hydrogel. Ann Biomed Eng 45, 224–236 (2017). https://doi.org/10.1007/s10439-016-1685-4
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DOI: https://doi.org/10.1007/s10439-016-1685-4