Emulating human microcapillaries in a multi-organ-chip platform

Autor: Roland Lauster, Tobias Hasenberg, Severin Mühleder, Wolfgang Holnthoner, Krystyna Labuda, Andrea Dotzler, Uwe Marx, Heinz Redl, Sophie Bauer
Rok vydání: 2015
Předmět:
Zdroj: Journal of biotechnology. 216
ISSN: 1873-4863
Popis: Current microfluidic chip-based tissue culture systems lack a capillary endothelial vessel system, which would enable perfusion with blood. We utilise spatial cell cultures to populate a perfused multi-organ-chip platform-a microfluidic device recently introduced for substance testing. Complete biological vascularization of such culture systems is vital to properly emulate physiological tissue behaviour. In this study, we incorporated a fibrin scaffold into the two-organ-chip design. Herein, adipose-derived stromal cells (ASCs) directed human umbilical vein endothelial cells (HUVECs) to organise into tube-like structures. The ASCs induced tube formation of HUVECs in static and dynamic conditions. The replacement of full medium enriched with growth factors and foetal calf serum with basal medium resulted in viable cells with similar gene expression profiles. We regard this as a prerequisite for studies with organ constructs that have a need for a different medium formulation. Furthermore, we here address stability issues of the fibrin gel and fibrin composition for optimal microvessel formation.
Databáze: OpenAIRE