Loibl, Markus and Binder, Andreas and Herrmann, Marietta and Duttenhoefer, Fabian and Richards, R. Geoff and Nerlich, Michael and Alini, Mauro and Verrier, Sophie (2014) Direct Cell-Cell Contact between Mesenchymal Stem Cells and Endothelial Progenitor Cells Induces a Pericyte-Like Phenotype In Vitro. BIOMED RESEARCH INTERNATIONAL: 395781. ISSN 2314-6133, 2314-6141
Full text not available from this repository. (Request a copy)Abstract
Tissue engineering techniques for the regeneration of large bone defects require sufficient vascularisation of the applied constructs to ensure a sufficient supply of oxygen and nutrients. In our previous work, prevascularised 3D scaffolds have been successfully established by coculture of bone marrow derived stem cells (MSCs) and endothelial progenitor cells (EPCs). We identified stabilising pericytes (PCs) as part of newly formed capillary-like structures. In the present study, we report preliminary data on the interactions between MSCs and EPCs, leading to the differentiation of pericyte-like cells. MSCs and EPCs were seeded in transwell cultures, direct cocultures, and single cultures. Cells were cultured for 10 days in IMDM 10% FCS or IMDM 5% FCS 5% platelet lysate medium. Gene expression of PC markers, CD146, NG2, alpha SMA, and PDGFR-beta, was analysed using RT-PCR at days 0, 3, 7, and 10. The upregulation of CD146, NG2, and alpha SMA in MSCs in direct coculture with EPCs advocates the MSCs' differentiation towards a pericyte-like phenotype in vitro. These results suggest that pericyte-like cells derive from MSCs and that cell-cell contact with EPCs is an important factor for this differentiation process. These findings emphasise the concept of coculture strategies to promote angiogenesis for cell-based tissue engineered bone grafts.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | HUMAN BONE-MARROW; HUMAN-TISSUES; ANGIOGENESIS; DIFFERENTIATION; EXPRESSION; EXPANSION; CD34(+); BRAIN; |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Unfallchirurgie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 02 Dec 2019 10:12 |
| Last Modified: | 02 Dec 2019 10:12 |
| URI: | https://pred.uni-regensburg.de/id/eprint/11065 |
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