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Immune Netw. 2017 Apr;17(2):89-102. doi: 10.4110/in.2017.17.2.89. Epub 2017 Apr 20.

Mesenchymal Stromal Cells and Toll-Like Receptor Priming: A Critical Review.

Immune network

Mehdi Najar, Mohammad Krayem, Nathalie Meuleman, Dominique Bron, Laurence Lagneaux

Affiliations

  1. Laboratory of Clinical Cell Therapy, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Campus Erasme, Belgium.
  2. Laboratory of Oncology and Experimental Surgery, Institut Jules Bordet, Université Libre de Bruxelles, Brussels 1000, Belgium.

PMID: 28458620 PMCID: PMC5407987 DOI: 10.4110/in.2017.17.2.89

Abstract

Mesenchymal Stromal Cells (MSCs) are potential cellular candidates for several immunotherapy purposes. Their multilineage potential and immunomodulatory properties make them interesting tools for the treatment of various immunological diseases. However, depending on the local microenvironment, diverse biological functions of MSCs can be modulated. Indeed, during infections such as obtained following TLR-agonist engagement (called as TLR priming), the phenotype, multilineage potential, hematopoietic support and immunomodulatory capacity of MSCs can present critical changes, which could further affect their therapeutic potential. Thus, for appropriate clinical application of MSCs, it is important to well know and understand these effects in particular during infectious episodes and to find the suitable experimental settings to study that. Pre-stimulation of MSCs with a specific TLR ligand may serve as an effective priming step to modulate one of its function to achieve a desired therapeutic issue.

Keywords: Hematopoietic support; Immunomodulation; MSCs; Multilineage potential; Phenotype; Priming; TLR

Conflict of interest statement

CONFLICTS OF INTEREST: The authors declare no potential conflicts of interest.

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