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Stem Cells Dev. 2008 Feb;17(1):199-206. doi: 10.1089/scd.2007.0175.

In vitro secreting profile of human mesenchymal stem cells.

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  • 1Universidad Nacional de Quilmes, Buenos Aires, Argentina.


In addition to their multilineage potential, mesenchymal stem cells (MSCs) also have a wide range of functionality. Not only can MSCs reconstruct a tissue, but they also have the ability to control or cure other cells and can reconstruct a coordinating function. The opportunity to control other cells depends on MSCs being able to secrete factors like cytokines and chemokines. Therefore, we focused on asking, Which factors can be secreted by human MSCs? To answer this question, we analyzed the secreting profile of in vitro-expanded MSCs by using cytokine arrays. The media concentrations of 44 of the 120 analyzed cytokines were significantly increased by MSCs. Conversely, concentrations of 40 cytokines given with the sera were significantly decreased. The data presented here provide an overview about a large range of factors that were secreted by MSCs under cell culture conditions. These data indicate that MSCs demonstrate all previously described functions in cellular interactions without an external stimulus. The MSCs secreted angiogenic, immunosuppressive, anti-apoptotic, and proliferation-stimulating factors.

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