Immunogenicity and Tumorigenicity of Pluripotent Stem Cells and their Derivatives: Genetic and Epigenetic Perspectives
Yuan Tan, Sarah Ooi and Lisheng Wang
Pages 63-72 (10)
One aim of stem cell-based therapy is to utilize pluripotent stem cells (PSCs) as a supplementary source of cells
to repair or replace tissues or organs that have ceased to function due to severe tissue damage. However, PSC-based therapy
requires extensive research to ascertain if PSC derivatives are functional without the risk of tumorigenicity, and also
do not engender severe immune rejection that threatens graft survival and function. Recently, the suitability of induced
pluripotent stem cells applied for patient-tailored cell therapy has been questioned since the discovery of several genetic
and epigenetic aberrations during the reprogramming process. Hence, it is crucial to understand the effect of these abnormalities
on the immunogenicity and survival of PSC grafts. As induced PSC-based therapy represents a hallmark for the
potential solution to prevent and arrest immune rejection, this review also summarizes several up-to-date key findings in
Differentiation, epigenetic, genetic, immunogenicity, pluripotent stem cell, MHC I, MHC II, NK cell, T cell.
Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, 451 Smyth Road, Ottawa K1H8M5, Canada.