Evidence map›Paper›PMID 23249337›Full record

ArticleAntioxidants & redox signaling2013

Vitamin C promotes maturation of T-cells.

Jared Manning, Birgitta Mitchell, Daniel A Appadurai, Arvind Shakya, Laura Jean Pierce, Hongfang Wang, Vincent Nganga, Patrick C Swanson, James M May, Dean Tantin and 1 more

Abstract read
In one paragraph

Article in Antioxidants & redox signaling, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 83 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
83citing papers in PubMed, 4 pooled it
1.6field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

83 citing papers in PubMed, 4 syntheses or guidelines pooled it, 162 citations in OpenAlex.

  1. Pooled it
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  12. Vγ9Vδ2 T cells expanded with vitamin C combined with HMBPPFrontiers in cellular and infection microbiology · 2025
    Article
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23 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 2 countries.

Jared Manning1 Division of Hematology, Department of Medicine, University of Utah , Salt Lake City, Utah.
Birgitta Mitchell
Daniel A Appadurai
Arvind Shakya
Laura Jean Pierce
Hongfang Wang
Vincent Nganga
Patrick C Swanson
James M May
Dean Tantin
Gerald J Spangrude
University of Utah · USCHI Health Creighton University Medical Center - Bergan Mercy · USVanderbilt University · US

Funding

UTAH REGIONAL CANCER CENTERP30CA042014 · NCI · UTAH STATE HIGHER EDUCATION SYSTEM--UNIVERSITY OF UTAH · PI Jared P Rutter · 1986 to 2026
$72.6M
RESEARCH TRAINING IN HEMATOLOGYT32DK007115 · NIDDK · UNIVERSITY OF UTAH · PI LEIBOLD, ELIZABETH ANN, PRCHAL, JOSEF T · 1986 to 2020
$8.4M
DEFINING HEMATOPOIETIC PROGENITORS IN MOUSE BONE MARROWR01DK057899 · NIDDK · UNIVERSITY OF UTAH · PI SPANGRUDE, GERALD J · 2001 to 2010
$2.8M
Characterization of V(D)J cleavage and repair complexesR01AI055599 · NIAID · CREIGHTON UNIVERSITY · PI SWANSON, PATRICK C. · 2003 to 2007
$1.1M
Maturation of Human Lymphocytes for TransplantationRC1AI086238 · NIAID · UNIVERSITY OF UTAH · PI SPANGRUDE, GERALD J · 2010 to 2010
$979k
NCI NIH HHS P30CA042014NIAID NIH HHS R01AI055599NIAID NIH HHS RC1 AI086238NIAID NIH HHS RC1AI086238NIDDK NIH HHS R01DK057899NIDDK NIH HHS T32 DK007115NIDDK NIH HHS T32DK007115
6 · The paper itself

Abstract

aimsVitamin C (ascorbic acid) is thought to enhance immune function, but the mechanisms involved are obscure. We utilized an in vitro model of T-cell maturation to evaluate the role of ascorbic acid in lymphocyte development.

resultsAscorbic acid was essential for the developmental progression of mouse bone marrow-derived progenitor cells to functional T-lymphocytes in vitro and also played a role in vivo. Ascorbate-mediated enhancement of T-cell development was lymphoid cell-intrinsic and independent of T-cell receptor (TCR) rearrangement. Analysis of TCR rearrangements demonstrated that ascorbic acid enhanced the selection of functional TCRαβ after the stage of β-selection. Genes encoding the coreceptor CD8 as well as the kinase ZAP70 were upregulated by ascorbic acid. Pharmacologic inhibition of methylation marks on DNA and histones enhanced ascorbate-mediated differentiation, suggesting an epigenetic mechanism of Cd8 gene regulation via active demethylation by ascorbate-dependent Fe(2+) and 2-oxoglutarate-dependent dioxygenases. INNOVATION: We speculate that one aspect of gene regulation mediated by ascorbate occurs at the level of chromatin demethylation, mediated by Jumonji C (JmjC) domain enzymes that are known to be reliant upon ascorbate as a cofactor. JmjC domain enzymes are also known to regulate transcription factor activity. These two mechanisms are likely to play key roles in the modulation of immune development and function by ascorbic acid.

conclusionOur results provide strong experimental evidence supporting a role for ascorbic acid in T-cell maturation as well as insight into the mechanism of ascorbate-mediated enhancement of immune function.

Indexed as

AnimalsAscorbic AcidAzepinesCells, CulturedCulture MediaEpigenesis, GeneticGene ExpressionGene Rearrangement, T-LymphocyteHistone-Lysine N-MethyltransferaseHistone MethyltransferasesHistonesImmunologic FactorsMethylationMiceMice, Inbred C57BLPhthalimidesAscorbic AcidAzepinesBIX 01294Culture MediaHistone-Lysine N-MethyltransferaseHistone MethyltransferasesHistonesImmunologic FactorsPhthalimidesQuinazolinesReceptors, Antigen, T-CellRG108Tryptophan

Identifiers

PMID23249337
PMCPMC3869442
OpenAlexW123698486

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.