Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

Transcription profiling of human naive T cells isolated from peripheral blood treated with 1,25 (OH)2 vitamin D3 induces expression of CCR10 and other genes

ABSTRACT: Human naive T cells from peripheral blood were cultured in 24 wells coated with anti-CD3 and anti-CD28 antibodies in the presence or absence of retinoid acid, IL-12, and 1,25 (OH)2 vitamin D3. The T cells were FACS-sorted based on expression of CD3, integrin alpha4beta7, cutaneous lymphocyte antigen (CLA) and chemokine receptor 10. This serie includes microarray data from stimulated T cells under indicated conditions. Experiment Overall Design: Total RNA was isolated from these sorted T cells using Invitrogen RNeasy mini-kit. The quality of RNA was prechecked by Agilent BioAnalyzer. Double-stranded cDNA was synthesized, and transcribed into Biotin-labeled cRNA, which was fragmented before hybridization. All the procedure was performed in the Stanford University PAN facility.

ORGANISM(S): Homo sapiens

SUBMITTER: Junliang Pan

PROVIDER: E-GEOD-6743 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

DCs metabolize sunlight-induced vitamin D3 to 'program' T cell attraction to the epidermal chemokine CCL27.

Sigmundsdottir Hekla H Pan Junliang J Debes Gudrun F GF Alt Carsten C Habtezion Aida A Soler Dulce D Butcher Eugene C EC

Nature immunology 20070128 3

During adaptive immune responses, dendritic cells activate T cells and endow them with specific homing properties. Mechanisms that 'imprint' specific tropisms, however, are not well defined. We show here that 1,25(OH)(2)D(3), the active form of vitamin D3, signaled T cells to express CC chemokine receptor 10, which enabled them to migrate to the skin-specific chemokine CCL27 secreted by keratinocytes of the epidermis. In contrast, 1,25(OH)(2)D(3) suppressed the gut-homing receptors alpha4beta7 a ...[more]

PMID: 17259988

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Project description:In the context of most induced pluripotent stem (iPS) cell reprogramming methods, heterogeneous populations of nonproductive and staggered productive intermediates arise at different reprogramming time points1-11. Despite recent reports claiming substantially increased reprogramming efficiencies using genetically modified donor cells12,13 prospectively isolating distinct reprogramming intermediates remains an important goal to decipher reprogramming mechanisms. Previous attempts to identify surface markers of intermediate cell populations were based on the assumption that during reprogramming the cells progressively lose donor cell identity and gradually acquire iPS cell properties1,2,7,8,10. Here, we report that iPS cell and epithelial markers, such as SSEA1 and EpCAM, respectively, are not predictive of reprogramming during early phases. Instead, in a systematic functional surface marker screen we find that early reprogramming-prone cells express a unique set of surface markers, including CD73, CD49d and CD200 that are absent in fibroblasts and iPS cells. Single cell mass cytometry and prospective isolation show that these distinct intermediates are transient and bridge the gap between donor cell silencing and pluripotency marker acquisition during the early, presumably stochastic reprogramming phase2. Expression profiling revealed that the transcriptional regulators Nr0b1 and Etv5 are specifically expressed in this early reprogramming state, preceding activation of key pluripotency regulators such as Rex1, Dppa2, Nanog and Sox2. Both factors are required for the generation of the early intermediate state and fully reprogrammed iPS cells, and thus mark some of the earliest known regulators of iPS cell induction. Our study shows an ordered sequence of transitions during the earliest steps of iPS cell reprogramming that deconvolutes the first steps in a hierarchical series of events that lead to pluripotency acquisition. Samples for poised (CD73+ or CD49d+) and non-poised (CD73-) reprogramming samples were FACS sorted 6 and 9 days after induction of Klf4, Oct4, Sox2 and cMyc in Rosa-rtTA +/- mouse embryonic fibroblasts (MEFs). 'Total' populations are expression analyses for unsorted populations analyzed at the same time points. Control populations were also sampled: mouse embryonic fibroblasts (MEFs), partially reprogrammed cells (SC4) and mouse embryonic stem cell (ESC).

Dataset Information

Transcription profiling of human naive T cells isolated from peripheral blood treated with 1,25 (OH)2 vitamin D3 induces expression of CCR10 and other genes

Publications

DCs metabolize sunlight-induced vitamin D3 to 'program' T cell attraction to the epidermal chemokine CCL27.

Similar Datasets

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