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Comparison of the immunomodulatory effect of single MSC batches versus pooled MSC products

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Abstract

Severe corticosteroid-refractory graft-versus-host-disease (GVHD) is a major non-relapse cause of mortality and morbidity after an allogeneic hematopoietic stem cell transplantation (allo-HSCT). One of the most promising treatment options is using advanced therapy medicinal products based on mesenchymal stem cells (MSCs) immunomodulation ability. The protocols of MSC application differ in many parameters including a source of MSC, a dose, a number of doses or way of preparation of the medicinal product. The process is limited by the need for laborious and expensive manufacturing processes fraught with batch-to-batch variability. In our study, we compared the immunomodulatory effects of different MSC batches versus pooled MSC, specifically the influence on lymphocyte proliferation, the metabolic activity, and the expression of activation markers on T cells. Our goal was to determine whether the effect depends on donor-to-donor heterogeneity and if pooling of MSCs could increase their immunomodulatory ability. All tested batches showed an immunomodulatory effect, with no significant differences between the groups. Our study suggests that immunosuppressive potential is comparable in single batches and pooled products, and the use of products got from individual donors is suitable to treat corticosteroid-refractory GVHD.

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Acknowledgments

This work was supported by the grant of the Ministry of Health of the Czech Republic – Conceptual Development of Research Organization (Faculty Hospital in Pilsen – FNPl, 00669806).

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Correspondence to M. Holubová.

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Hejretová, L., Čedíková, M., Dolejšová, M. et al. Comparison of the immunomodulatory effect of single MSC batches versus pooled MSC products. Cell Tissue Bank 21, 119–129 (2020). https://doi.org/10.1007/s10561-019-09805-3

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  • DOI: https://doi.org/10.1007/s10561-019-09805-3

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