Differences of Clonogenic Mesenchymal Stem Cells on Immunomodulation of Lymphocyte Subsets.

Authors: Martínez-Peinado P, Pascual-García S, Roche E, Sempere-Ortells JM Abstract Mesenchymal stem cells (MSC) are a widely used population in cell therapy for their ability to differentiate into distinct tissues and more lately, for their immunomodulatory properties. However, the use of heterogeneous populations could be responsible for the nondesired outcomes reflected in the literature. Here, we analyse the different capacities of five one-cell-derived MSC clones to exert their immunomodulation ex vivo. We assessed proliferation assays in cocultures of MSC clones and purified cluster of differentiation (CD)3+, CD4+, or CD8+ lymphocytes; analysed the regulatory T (Treg) cells fold change rate; determined the effects on viability of peripheral blood mononuclear cells (PBMC); a...

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