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Series GSE66385 Query DataSets for GSE66385
Status Public on Apr 20, 2015
Title Allogeneic mature human dendritic cells generate superior alloreactive regulatory T cells in the presence of IL-15
Organism Homo sapiens
Experiment type Expression profiling by high throughput sequencing
Summary Introduction: Expansion of antigen (Ag)-specific natural occurring regulatory T cells (nTregs) is required to obtain sufficient numbers of cells for cellular immunotherapy. In this study, different allogeneic stimuli were studied for their capacity to generate functional alloAg-specific nTregs.
Methods: A highly enriched nTreg-fraction (CD4+CD25brightCD127- T cells) was alloAg-specific expanded using HLA-mismatched immature, mature monocyte-derived dendritic cells (moDC) or peripheral blood mononuclear cells (PBMC). The allogeneic mature moDC-expanded nTregs were fully characterized by analysis of the demethylation status within the TSDR of the FOXP3 gene and the expression of both protein and mRNA of FOXP3, HELIOS, CTLA4 and cytokines. In addition, the antigen-specific suppressive capacity of these expanded nTregs was tested.
Results: Allogeneic mature moDC and skin-derived DC were superior in inducing nTreg-expansion compared to immature moDC or PBMC in an HLA-DR and CD80/CD86-dependent way. Remarkably, the presence of exogenous IL-15 without IL-2, could facilitate optimal mature moDC-induced nTreg-expansion. Allogeneic mature moDC-expanded nTregs were at low ratios (<1:320), potent suppressors of alloAg-induced proliferation without significant suppression of completely HLA-mismatched-Ag-induced proliferation. Mature moDC-expanded nTregs were highly demethylated at the TSDR within the FOXP3 gene and highly expressed of FOXP3, HELIOS and CTLA4. A minority of the expanded nTregs produced IL-10, IL-2, IFN-g and TNF-a but very few IL-17 producing nTregs were found. Next generation sequencing of mRNA of moDC-expanded nTregs revealed a strong induction of Treg-associated mRNAs.
Conclusions: Human allogeneic mature moDC are highly efficient stimulator cells, in presence of exogenous IL-15, for expansion of stable alloAg-specific nTregs with superior suppressive function.
Overall design Four different batches of highly pure regulatory T cells (all from the same donor) were expanded in two different ways, and compared to non-expanded samples.
Contributor(s) Litjens NH, Boer K, Zuijderwijk JM, Klepper M, Peeters AM, Prens EP, Verschoor W, Kraaijeveld R, Ozgur Z, van den Hout-van Vroonhoven MC, van IJcken WF, Baan CC, Betjes MG
Citation(s) 25917092
Submission date Feb 27, 2015
Last update date May 15, 2019
Contact name Nicolle Litjens
Organization name Erasmus MC
Department Internal Medicine
Lab Division of Nephrology and Transplantation
Street address Wytemaweg 80
City Rotterdam
ZIP/Postal code 3015 CN
Country Netherlands
Platforms (1)
GPL16791 Illumina HiSeq 2500 (Homo sapiens)
Samples (11)
GSM1621312 beads_01
GSM1621313 DC_01
GSM1621314 DC_02
BioProject PRJNA276698
SRA SRP055675

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Supplementary file Size Download File type/resource
GSE66385_toptags_BA_edgeRwithBatchEffect.txt.gz 546.9 Kb (ftp)(http) TXT
GSE66385_toptags_CA_edgeRwithBatchEffect.txt.gz 552.6 Kb (ftp)(http) TXT
GSE66385_toptags_CB_edgeRwithBatchEffect.txt.gz 533.1 Kb (ftp)(http) TXT
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