Abstract:
:Human pluripotent stem cells are a valuable resource for transplantation, yet our ability to profile xenografts is largely limited to low-throughput immunohistochemical analysis by difficulties in readily isolating grafts for transcriptomic and/or proteomic profiling. Here, we present a simple methodology utilizing differences in the RNA sequence between species to discriminate xenograft from host gene expression (using qPCR or RNA sequencing [RNA-seq]). To demonstrate the approach, we assessed grafts of undifferentiated human stem cells and neural progenitors in the rodent brain. Xenograft-specific qPCR provided sensitive detection of proliferative cells, and identified germ layer markers and appropriate neural maturation genes across the graft types. Xenograft-specific RNA-seq enabled profiling of the complete transcriptome and an unbiased characterization of graft composition. Such xenograft-specific profiling will be crucial for pre-clinical characterization of grafts and batch-testing of therapeutic cell preparations to ensure safety and functional predictability prior to translation.
journal_name
Stem Cell Reportsjournal_title
Stem cell reportsauthors
Bye CR,Penna V,de Luzy IR,Gantner CW,Hunt CPJ,Thompson LH,Parish CLdoi
10.1016/j.stemcr.2019.10.001subject
Has Abstractpub_date
2019-11-12 00:00:00pages
877-890issue
5issn
2213-6711pii
S2213-6711(19)30362-5journal_volume
13pub_type
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