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Comparison of naive and central memory derived CD8+ effector cell engraftment fitness and function following adoptive transfer.


ABSTRACT: Human CD8+ effector T cells derived from CD45RO+CD62L+ precursors enriched for central memory (TCM) precursors retain the capacity to engraft and reconstitute functional memory upon adoptive transfer, whereas effectors derived from CD45RO+CD62L- precursors enriched for effector memory precursors do not. Here we sought to compare the engraftment fitness and function of CD8+ effector T cells derived from CD45RA+CD62L+ precursors enriched for naïve and stem cell memory precursors (TN/SCM) with that of TCM. We found that cytotoxic T cells (CTLs) derived from TCM transcribed higher levels of CD28, FOS, INF?, Eomesodermin (Eomes), and lower levels of BCL2L11, maintained higher levels of phosphorylated AKT, and displayed enhanced sensitivity to the proliferative and anti-apoptotic effects of ?-chain cytokines compared to CTLs derived from TN/SCM. Higher frequencies of CTLs derived from TCM retained CD28 expression and upon activation secreted higher levels of IL-2. In NOD/Scid IL-2R?Cnull mice, CD8+ TCM derived CTLs engrafted to higher frequencies in response to human IL-15 and mounted robust proliferative responses to an immunostimulatory vaccine. Similarly, CD8+ TCM derived CD19CAR+ CTLs exhibited superior antitumor potency following adoptive transfer compared to their CD8+ TN/SCM derived counterparts. These studies support the use of TCM enriched cell products for adoptive therapy of cancer.

SUBMITTER: Wang X 

PROVIDER: S-EPMC4760301 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

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Comparison of naïve and central memory derived CD8<sup>+</sup> effector cell engraftment fitness and function following adoptive transfer.

Wang Xiuli X   Wong ChingLam W CW   Urak Ryan R   Taus Ellie E   Aguilar Brenda B   Chang Wen-Chung WC   Mardiros Armen A   Budde Lihua E LE   Brown Christine E CE   Berger Carolina C   Forman Stephen J SJ   Jensen Michael C MC  

Oncoimmunology 20150820 1


Human CD8<sup>+</sup> effector T cells derived from CD45RO<sup>+</sup>CD62L<sup>+</sup> precursors enriched for central memory (T<sub>CM</sub>) precursors retain the capacity to engraft and reconstitute functional memory upon adoptive transfer, whereas effectors derived from CD45RO<sup>+</sup>CD62L<sup>-</sup> precursors enriched for effector memory precursors do not. Here we sought to compare the engraftment fitness and function of CD8<sup>+</sup> effector T cells derived from CD45RA<sup>+</sup  ...[more]

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