Crohn's Disease Disturbs the Immune Properties of Human Adipose-Derived Stem Cells Related to Inflammasome Activation

Carolina Serena, Noelia Keiran, Ana Madeira, Elsa Maymó-Masip, Miriam Ejarque, Margarida Terrón-Puig, Eloy Espin, Marc Martí, Natalia Borruel, Francisco Guarner, Margarida Menacho, Antonio Zorzano (+3 others)
2017 Stem Cell Reports  
Crohn's disease (CD) is characterized by the expansion of mesenteric fat, also known as "creeping fat." We explored the plasticity and immune properties of adipose-derived stem cells (ASCs) in the context of CD as potential key players in the development of creeping fat. Mesenteric CD-derived ASCs presented a more proliferative, inflammatory, invasive, and phagocytic phenotype than equivalent cells from healthy donors, irrespective of the clinical stage. Remarkably, ASCs from the subcutaneous
more » ... pot of patients with CD also showed an activated immune response that was associated with a reduction in their immunosuppressive properties. The invasive phenotype of mesenteric CD ASCs was governed by an inflammasome-mediated inflammatory state since blocking inflammasome signaling, mainly the secretion of interleukin-1b, reversed this characteristic. Thus, CD alters the biological functions of ASCs as adipocyte precursors, but also their immune properties. Selection of ASCs with the best immunomodulatory properties is advocated for the success of cell-based therapies.
doi:10.1016/j.stemcr.2017.07.014 pmid:28966116 pmcid:PMC5639166 fatcat:x6m6whbqk5fwnlo2n3qiydden4