Adipogenic differentiation of human adipose derived mesenchymal stem cells in 3D architectured gelatin based hydrogels (ArcGel)
Issue title: Selected papers of the 36th Conference of the German Society for Clinical Microcirculation and Hemorheology, 5–8. June, 2017, Greifswald, Germany
Guest editors: M. Jünger, A. Krüger-Genge and F. Jung
Affiliations: [a] Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| [b] Institute of Chemistry and Biochemistry, Freie Universität, Berlin, Germany
| [c]
Helmholtz Virtual Institute “Multifunctional Biomaterials in Medicine”, Teltow, Germany
| [d] Institute of Biochemistry and Biology, Universität Potsdam, Potsdam, Germany
Correspondence:
[*]
Corresponding authors: Prof. Dr. Nan Ma and Prof. Dr. Andreas Lendlein, Institute of Biomaterial Science, Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513 Teltow. Tel.: +49 0 3328 352 235; Fax: +49 0 3328 352 452. E-mail: nan.ma@hzg.de (N. Ma); andreas.lendlein@hzg.de (A. Lendlein).
Note: [1] These authors contributed equally to this work.
Abstract: Polymeric matrices mimicking multiple functions of the ECM are expected to enable a material induced regeneration of tissues. Here, we investigated the adipogenic differentiation of human adipose derived mesenchymal stem cells (hADSCs) in a 3D architectured gelatin based hydrogel (ArcGel) prepared from gelatin and L-lysine diisocyanate ethyl ester (LDI) in an one-step process, in which the formation of an open porous morphology and the chemical network formation were integrated. The ArcGel was designed to support adipose tissue regeneration with its 3D porous structure, high cell biocompatibility, and mechanical properties compatible with human subcutaneous adipose tissue. The ArcGel could support initial cell adhesion and survival of hADSCs. Under static culture condition, the cells could migrate into the inner part of the scaffold with a depth of 840±120 μm after 4 days, and distributed in the whole scaffold (2 mm in thickness) within 14 days. The cells proliferated in the scaffold and the fold increase of cell number after 7 days of culture was 2.55±0.08. The apoptotic rate of hADSCs in the scaffold was similar to that of cells maintained on tissue culture plates. When cultured in adipogenic induction medium, the hADSCs in the scaffold differentiated into adipocytes with a high efficiency (93±1%). Conclusively, this gelatin based 3D scaffold presented high cell compatibility for hADSC cultivation and differentiation, which could serve as a potential implant material in clinical applications for adipose tissue reparation and regeneration.
