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Title

Human Bone Marrow Stromal Cells Lose Immunosuppressive and Anti-inflammatory Properties upon Oncogenic Transformation

AuthorsRodriguez, Rene; Rosu-Myles, Michael; Aráuzo-Bravo, Marcos; Horrillo, Angélica ; Pan, Qiuwei; González-Rey, Elena; Delgado, M.; Menéndez, Pablo
Issue DateOct-2014
PublisherCell Press
CitationStem Cell Reports
AbstractBecause of their immunomodulatory properties, human bone marrow stromal cells (hBMSCs) represent promising stem cells for treatment of immune disorders. hBMSCs expansion precedes their clinical use, so the possibility that hBMSCs undergo spontaneous transformation upon long-term culture should be addressed. Whether hBMSCs retain immunosuppressive and anti-inflammatory properties upon oncogenic transformation remains unknown. Using sequentially mutated hBMSCs and spontaneously transformed hBMSCs, we report that, upon oncogenic transformation, hBMSCs lose immunosuppressive and anti-inflammatory properties in vitro and in vivo. Transcriptome profiling and functional assays reveal immune effectors underlying the loss of immunomodulation in transformed hBMSCs. They display a proinflammatory transcriptomic signature, with deregulation of immune and inflammatory modulators and regulators of the prostaglandin synthesis. Transformed hBMSCs lose their capacity to secrete the immunosuppressive prostacyclins prostaglandin E2 (PGE2) and PGI2 but produce proinflammatory thromboxanes. Together, the immunoregulatory profile adopted by hBMSCs largely depends on intrinsic genetic-molecular determinants triggered by genomic instability/oncogenic transformation.
Publisher version (URL)http://www.sciencedirect.com/science/article/pii/S2213671114002598
URIhttp://hdl.handle.net/10261/133842
E-ISSN2213-6711
Appears in Collections:(IPBLN) Artículos
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