Human Adipose Tissue‐Derived Mesenchymal Stem Cells Abrogate Plasmablast Formation and Induce Regulatory B Cells Independently of T Helper Cells. (March 2015)

• Record Type: Journal Article
• Authors: Franquesa, M.; Mensah, F. K.; Huizinga, R.; Strini, T.; Boon, L.; Lombardo, E.; DelaRosa, O.; Laman, J. D.; Grinyó, J. M.; Weimar, W.; Betjes, M. G. H.; Baan, C. C.; Hoogduijn, M. J.
• Is Part Of: Stem cells. Volume 33:Number 3(2015:Mar.)
• Page Start: 880
• Page End: 891
• Publication Date: 2015-03
• Subjects: Cloning -- Periodicals; Clone cells -- Periodicals; Stem cells -- Periodicals; Cell Differentiation -- Periodicals; Cell Division -- Periodicals; Clone Cells -- Periodicals; Hematopoietic Stem Cells -- Periodicals; Stem Cells -- Periodicals; 571.84
• DOI: 10.1002/stem.1881
• Languages: English
• ISSNs: 1066-5099

Abstract

<abstract abstract-type="main"> <title>Abstract</title> <p>Mesenchymal or stromal stem cells (MSC) interact with cells of the immune system in multiple ways. Modulation of the immune system by MSC is believed to be a therapeutic option for autoimmune disease and transplant rejection. In recent years, B cells have moved into the focus of the attention as targets for the treatment of immune disorders. Current B‐cell targeting treatment is based on the indiscriminate depletion of B cells. The aim of this study was to examine whether human adipose tissue‐derived MSC (ASC) interact with B cells to affect their proliferation, differentiation, and immune function. ASC supported the survival of quiescent B cells predominantly via contact‐dependent mechanisms. Coculture of B cells with activated T helper cells led to proliferation and differentiation of B cells into CD19<sup>+</sup>CD27<sup>high</sup>CD38<sup>high</sup> antibody‐producing plasmablasts. ASC inhibited the proliferation of B cells and this effect was dependent on the presence of T cells. In contrast, ASC directly targeted B‐cell differentiation, independently of T cells. In the presence of ASC, plasmablast formation was reduced and IL‐10‐producing CD19<sup>+</sup>CD24<sup>high</sup>CD38<sup>high</sup> B cells, known as regulatory B cells, were induced. These results demonstrate that ASC affect B cell biology in vitro, suggesting that they can be a tool for the modulation of the B‐cell response in immune disease. S<sc>tem</sc> C<sc>ells</sc><italic>2015;33:880–891</italic></p> </abstract>