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Gene expression profile of regenerated CD8αα T cells and CD8αβ T cells from LMP2 T-iPSCs

ABSTRACT: Whereas cytotoxic T lymphocytes (CTLs) represent the most promising therapeutic avenue in cancer immunotherapy, adaptive transfer of antigen-specific CTLs has faced difficulty in efficient expansion of CTLs from patients in ex vivo culture. To solve this issue, several groups have proposed that the induced pluripotent stem cell (iPSC) technology can be applied for the expansion of antigen-specific CTLs: when iPSCs are produced from antigen-specific CTLs and CTLs are induced from these iPSCs, all regenerated CTLs express the same TCR as original CTLs. However, in these previous studies, one critical issue remains to be solved. With current methods, the regenerated CTLs are mostly of the CD8αα+ innate type and have less antigen-specific cytotoxic activity than primary CTLs. Here we report that, by stimulating purified iPSC-derived CD4/CD8 double positive (DP) cells with anti-CD3 antibody, T cells expressing CD8αβ were generated and they had cytotoxic activity comparable to primary CTLs.

ORGANISM(S): Homo sapiens

PROVIDER: GSE81975 | GEO | 2016/11/15

SECONDARY ACCESSION(S): PRJNA323549

REPOSITORIES: GEO

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Gene expression data of gdT-derived iPSCs and validated iPS clone for pluritest

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2016-08-18 | E-MTAB-3859 | biostudies-arrayexpress

Genetic variability exceeds cell-type memory and determines iPSCs differentiation potential-implications for biobanking

Project description:Summary To address the issue of retention of somatic cell memory in iPSCs we compared gene expressions of genetically matched human iPSCs derived from fibroblasts and blood. We were using the all-in-one type footprint free SeVdp-iPS system, for generation of uniform iPSC lines Our results show that iPSC lines derived from the same donor are highly similar to each other. Overal design Total RNA was extracted from fibroblasts derived iPSC (N=8) and blood derived iPSC (N=10) as well as parental fibroblasts and peripheral blood mononuclear cells (N=4 different donors: T14; T42; T53; T55). Total RNA was also extracted from spontaneously differentiated Embryonic bodies derived from fibroblasts derived iPSC (N=4) and blood derived iPSC (N=4) from four donors. RNA from control human embryonic stem cell lines (H9, and FES22) was used as control. Samples were run in two different batches (1 and 2).

2016-01-07 | E-MTAB-3825 | biostudies-arrayexpress

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