Abstract:
:Embryonic stem cells (ESCs) are an attractive source for tissue regeneration and repair therapies because they can be differentiated into virtually any cell type in the adult body. However, for this approach to succeed, the transplanted ESCs must survive long enough to generate a therapeutic benefit. A major obstacle facing the engraftment of ESCs is transplant rejection by the immune system. Here we show that blocking leukocyte costimulatory molecules permits ESC engraftment. We demonstrate the success of this immunosuppressive therapy for mouse ESCs, human ESCs, mouse induced pluripotent stem cells (iPSCs), human induced pluripotent stem cells, and more differentiated ESC/(iPSCs) derivatives. Additionally, we provide evidence describing the mechanism by which inhibition of costimulatory molecules suppresses T cell activation. This report describes a short-term immunosuppressive approach capable of inducing engraftment of transplanted ESCs and iPSCs, providing a significant improvement in our mechanistic understanding of the critical role costimulatory molecules play in leukocyte activation.
journal_name
Cell Stem Celljournal_title
Cell stem cellauthors
Pearl JI,Lee AS,Leveson-Gower DB,Sun N,Ghosh Z,Lan F,Ransohoff J,Negrin RS,Davis MM,Wu JCdoi
10.1016/j.stem.2011.01.012subject
Has Abstractpub_date
2011-03-04 00:00:00pages
309-17issue
3eissn
1934-5909issn
1875-9777pii
S1934-5909(11)00013-0journal_volume
8pub_type
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