A local application of mesenchymal stem cells and cyclosporine A attenuates immune response by a switch in macrophage phenotype

0454064 - ÚEM 2018 RIV GB eng J - Journal Article
Hájková, M. - Javorková, Eliška - Zajícová, Alena - Trošan, Peter - Holáň, Vladimír - Krulová, Magdaléna
A local application of mesenchymal stem cells and cyclosporine A attenuates immune response by a switch in macrophage phenotype.
Journal of Tissue Engineering and Regenerative Medicine. Roč. 11, č. 5 (2017), s. 1456-1465. ISSN 1932-6254. E-ISSN 1932-7005
R&D Projects: GA ČR(CZ) GAP304/11/0653; GA ČR(CZ) GAP301/11/1568; GA ČR(CZ) GA14-12580S; GA MZd(CZ) NT14102
Institutional support: RVO:68378041
Keywords : mesenchymal stem cells * cyclosporine A * macrophages
OECD category: Cell biology
Impact factor: 4.089, year: 2017

The immunosuppressive effects of systemically administered mesenchymal stem cells (MSCs) and immunosuppressive drugs have been well documented. We analysed the mechanisms underlying the therapeutic effect of MSCs applied locally in combination with non-specific immunosuppression in a mouse model of allogeneic skin transplantation. The MSC-seeded and cyclosporine A (CsA)-loaded nanofibre scaffolds were applied topically to skin allografts in a mouse model and the local immune response was assessed and characterized. MSCs migrated from the scaffold into the side of injury and were detected in the graft region and draining lymph nodes (DLNs). The numbers of graft-infiltrating macrophages and the production of nitric oxide (NO) were significantly decreased in recipients treated with MSCs and CsA, and this reduction correlated with impaired production of IFN. in the graft and DLNs. In contrast, the proportion of alternatively activated macrophages (F4/80(+)CD206(+) cells) and the production of IL-10 by intragraft macrophages were significantly upregulated. The ability of MSCs to alter the phenotype of macrophages from the M1 type into an M2 population was confirmed in a co-culture system in vitro. We suggest that the topical application of MSCs in combination with CsA induces a switch in macrophages to a population with an alternatively activated 'healing' phenotype and producing elevated levels of IL-10. These alterations in macrophage phenotype and function could represent one of the mechanisms of immunosuppressive action of MSCs applied in combination with CsA.
Permanent Link: http://hdl.handle.net/11104/0254815