Technical Advance: Ascorbic acid induces development of double-positive T cells from human hematopoietic stem cells in the absence of stromal cells (original) (raw)

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Department of Internal Medicine, Division of Hematology, Maastricht University Medical Center, Maastricht University

, Maastricht,

the Netherlands

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Department of Internal Medicine, Division of Hematology, Maastricht University Medical Center, Maastricht University

, Maastricht,

the Netherlands

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Department of Internal Medicine, Division of Hematology, Maastricht University Medical Center, Maastricht University

, Maastricht,

the Netherlands

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Department of Toxicogenomics, School for Oncology and Developmental Biology, Maastricht University

, Maastricht,

the Netherlands

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Birgit L M G Senden-Gijsbers

Department of Internal Medicine, Division of Hematology, Maastricht University Medical Center, Maastricht University

, Maastricht,

the Netherlands

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,

Department of Internal Medicine, Division of Hematology, Maastricht University Medical Center, Maastricht University

, Maastricht,

the Netherlands

Search for other works by this author on:

,

Department of Internal Medicine, Division of Hematology, Maastricht University Medical Center, Maastricht University

, Maastricht,

the Netherlands

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Department of Internal Medicine, Division of Hematology, Maastricht University Medical Center, Maastricht University

, Maastricht,

the Netherlands

Search for other works by this author on:

Received:

27 February 2014

Revision received:

06 August 2014

Published:

25 August 2014

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Mirelle J A J Huijskens, Mateusz Walczak, Nicole Koller, Jacob J Briedé, Birgit L M G Senden-Gijsbers, Melanie C Schnijderberg, Gerard M J Bos, Wilfred T V Germeraad, Technical Advance: Ascorbic acid induces development of double-positive T cells from human hematopoietic stem cells in the absence of stromal cells, Journal of Leukocyte Biology, Volume 96, Issue 6, Dec 2014, Pages 1165–1175, https://doi.org/10.1189/jlb.1TA0214-121RR
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Abstract

The efficacy of donor HSCT is partly reduced as a result of slow post-transplantation immune recovery. In particular, T cell regeneration is generally delayed, resulting in high infection-related mortality in the first years post-transplantation. Adoptive transfer of in vitro-generated human T cell progenitors seems a promising approach to accelerate T cell recovery in immunocompromised patients. AA may enhance T cell proliferation and differentiation in a controlled, feeder-free environment containing Notch ligands and defined growth factors. Our experiments show a pivotal role for AA during human in vitro T cell development. The blocking of NOS diminished this effect, indicating a role for the citrulline/NO cycle. AA promotes the transition of proT1 to proT2 cells and of preT to DP T cells. Furthermore, the addition of AA to feeder cocultures resulted in development of DP and SP T cells, whereas without AA, a preT cell-stage arrest occurred. We conclude that neither DLL4-expressing feeder cells nor feeder cell conditioned media are required for generating DP T cells from CB and G-CSF-mobilized HSCs and that generation and proliferation of proT and DP T cells are greatly improved by AA. This technology could potentially be used to generate T cell progenitors for adoptive therapy.

© 2014 Society for Leukocyte Biology

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