Human Wharton's jelly-derived mesenchymal stromal cells engineered to secrete Epstein-Barr virus interleukin-10 show enhanced immunosuppressive properties

Cytotherapy
Paola QuarantaMauro Pistello

Abstract

Mesenchymal stromal cells (MSCs) modulate the immune response and represent a potential treatment for inflammatory and autoimmune diseases. We hypothesized that this feature could be potentiated by co-administering anti-inflammatory cytokines. In this article, we asked whether engineering of Wharton Jelly-derived human MSCs (WJ-hMSCs) to express an anti-inflammatory cytokine increases cell immunomodulatory properties without altering their native features. We used Epstein-Barr virus-derived interleukin-10 (vIL-10), which shares some immunosuppressive properties with human IL-10 but lacks immunostimulatory activity. Engineering was accomplished by transducing WJ-hMSCs with a self-inactivating feline immunodeficiency virus-derived vector co-expressing vIL-10 and herpes simplex virus type-1 thymidine kinase (TK). TK was added to allow future tracking of WJ-hMSC in vivo by positron electron tomography (PET). The results show that (i) expression of TK and/or vIL-10 does not change WJ-hMSC phenotypic and functional properties; (ii) vIL-10 is secreted, biologically active and enhances the immunosuppressing functions of WJ-hMSCs; (iii) v-IL10 and TK can be produced simultaneously by the same cells and do not interfere with each other. ...Continue Reading

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Citations

Mar 18, 2017·Expert Opinion on Biological Therapy·Anna BadnerMichael G Fehlings

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