Summary
Vascularization is one of the most central processes enabling multicellular life. Owing to the complexity of vascularization regulatory networks, minor control imbalances often have severe pathologic consequences ranging from ischemic diseases to cancer. Tissue engineers are immediately confronted with vascularization as artificial tissues of a clinically relevant size require a vascular system to ensure vital physiologic logistics throughout the entire tissue and to enable rapid connection to the host vasculature following implantation. Using human umbilical vein endothelial cells (HUVECs) coated onto a human aortic fibroblast (HAF) core microtissue generated by gravity-enforced self-assembly in hanging drops, we created a tissue-culture system for studying capillary network formation. We provide comprehensive technical insight into the design and analysis of prototype vascularization in multicell-type-based microtissues. Detailed understanding of generic processes managing capillary formation in human tissue culture may foster advances in the development of clinical tissue implants.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsReferences
Griffith, L. G. and Naughton, G. (2002) Tissue engineering – current challenges and expanding opportunities. Science 295, 1009–1014.
Hollister, S. J. (2005) Porous scaffold design for tissue engineering. Nat. Mater. 4, 518–524.
Lutolf, M. P. and Hubbell, J. A. (2005) Synthetic biomaterials as instructive extracellular microenvironments for morphogenesis in tissue engineering. Nat. Biotechnol. 23, 47–55.
Neuenschwander, S. and Hoerstrup, S. P. (2004) Heart valve tissue engineering. Transpl. Immunol. 12, 359–365.
O’Reilly, M. S., Boehm, T., Shing, Y., Fukai, N., Vasios, G., Lane, W. S., Flynn, E., Birkhead, J. R., Olsen, B. R., and Folkman, J. (1997) Endostatin: an endogenous inhibitor of angiogenesis and tumor growth. Cell 88, 277–285.
Vogel, V. and Baneyx, G. (2003) The tissue engineering puzzle: a molecular perspective. Annu. Rev. Biomed. Eng. 5, 441–463.
Jakab, K., Neagu, A., Mironov, V., Markwald, R. R., and Forgacs, G. (2004) Engineering biological structures of prescribed shape using self-assembling multicellular systems. Proc. Natl. Acad. Sci. U. S. A. 101, 2864–2869.
Wang, F., Dumstrei, K., Haag, T., and Hartenstein, V. (2004) The role of DE-cadherin during cellularization, germ layer formation and early neurogenesis in the Drosophila embryo. Dev. Biol. 270, 350–363.
Duguay, D., Foty, R. A., and Steinberg, M. S. (2003) Cadherin-mediated cell adhesion and tissue segregation: qualitative and quantitative determinants. Dev. Biol. 253, 309–323.
Foty, R. A. and Steinberg, M. S. (2005) The differential adhesion hypothesis: a direct evaluation. Dev. Biol. 278, 255–263.
Steinberg, M. S. (1963) Reconstruction of tissues by dissociated cells. Some morphogenetic tissue movements and the sorting out of embryonic cells may have a common explanation. Science 141, 401–408.
Kelm, J. M., Diaz Sanchez-Bustamante, C., Ehler, E., Hoerstrup, S. P., Djonov, V., Ittner, L., and Fussenegger, M. (2005) VEGF profiling and angiogenesis in human microtissues. J. Biotechnol. 118, 213–229.
Messerli, J. M., van der Voort, H. T., Rungger-Brandle, E., and Perriard, J. C. (1993) Three-dimensional visualization of multi-channel volume data: the amSFP algorithm. Cytometry 14, 725–735.
Keller, G. M. (1995) In vitro differentiation of embryonic stem cells. Curr. Opin. Cell Biol. 7, 862–869.
Kelm, J. M., Ehler, E., Nielsen, L. K., Schlatter, S., Perriard, J. C., and Fussenegger, M. (2004) Design of artificial myocardial microtissues. Tissue Eng. 10, 201–214.
Kelm, J. M., and Fussenegger, M. (2004) Microscale tissue engineering using gravity-enforced cell assembly. Trends Biotechnol. 22, 195–202.
Kelm, J. M., Ittner, L. M., Born, W., Djonov, V., and Fussenegger, M. (2006) Self-assembly of sensory neurons into ganglia-like microtissues. J. Biotechnol. 121, 86–101.
Layer, P. G., Robitzki, A., Rothermel, A., and Willbold, E. (2002) Of layers and spheres: the reaggregate approach in tissue engineering. Trends Neurosci. 25, 131–134.
Timmins, N. E., Dietmair, S., and Nielsen, L. K. (2004) Hanging-drop multicellular spheroids as a model of tumour angiogenesis. Angiogenesis 7, 97–103.
Gerber, H. P., Hillan, K. J., Ryan, A. M., Kowalski, J., Keller, G. A., Rangell, L., Wright, B. D., Radtke, F., Aguet, M., and Ferrara, N. (1999) VEGF is required for growth and survival in neonatal mice. Development 126, 1149–1159.
Ferrara, N. and Alitalo, K. (1999) Clinical applications of angiogenic growth factors and their inhibitors. Nat. Med. 5, 1359–1364.
Carmeliet, P., Ng, Y. S., Nuyens, D., Theilmeier, G., Brusselmans, K., Cornelissen, I., Ehler, E., Kakkar, V. V., Stalmans, I., Mattot, V., Perriard, J. C., Dewerchin, M., Flameng, W., Nagy, A., Lupu, F., Moons, L., Collen, D., D’Amore, P. A., and Shima, D. T. (1999) Impaired myocardial angiogenesis and ischemic cardiomyopathy in mice lacking the vascular endothelial growth factor isoforms VEGF164 and VEGF188. Nat. Med. 5, 495–502.
Wong, A. K., Alfert, M., Castrillon, D. H., Shen, Q., Holash, J., Yancopoulos, G. D., and Chin, L. (2001) Excessive tumor-elaborated VEGF and its neutralization define a lethal paraneoplastic syndrome. Proc. Natl. Acad. Sci. U. S. A. 98, 7481–7486.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2007 Humana Press Inc.
About this protocol
Cite this protocol
Kelm, J.M., Moritz, W., Schmidt, D., Hoerstrup, S.P., Fussenegger, M. (2007). In Vitro Vascularization of Human Connective Microtissues. In: Hauser, H., Fussenegger, M. (eds) Tissue Engineering. Methods in Molecular Medicine™, vol 140. Humana Press. https://doi.org/10.1007/978-1-59745-443-8_9
Download citation
DOI: https://doi.org/10.1007/978-1-59745-443-8_9
Publisher Name: Humana Press
Print ISBN: 978-1-58829-756-3
Online ISBN: 978-1-59745-443-8
eBook Packages: Springer Protocols