Evidence map›Paper›PMID 21439091›Full record

ArticleMalaria journal2011

Plasmodium berghei ANKA infection increases Foxp3, IL-10 and IL-2 in CXCL-10 deficient C57BL/6 mice.

Bismark Y Sarfo, Nana O Wilson, Vincent C Bond, Jonathan K Stiles

Open access · goldAbstract read
In one paragraph

Article in Malaria journal, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

9 citing papers in PubMed, 19 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Bismark Y SarfoDepartment of Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, 720 Westview Drive, South West, Atlanta Georgia, GA 30310, USA.
Nana O Wilson
Vincent C Bond
Jonathan K Stiles
Morehouse School of Medicine · US

Funding

TRANSCRIPTION FACTORS AND PROSTATE CANCERG12RR003034 · NCRR · MOREHOUSE SCHOOL OF MEDICINE · PI ZHAO, XUEYING · 1986 to 2011
$32.4M
Research Desogn and Biostatistics CoreU54MD007588 · NIMHD · MOREHOUSE SCHOOL OF MEDICINE · PI JOHNSON, PRISCILLA SUE · 2012 to 2018
$24.8M
Vascular Cell Apoptosis: Mediator Role of Transforming Growth Factor-beta-1S06GM008248 · NIGMS · MOREHOUSE SCHOOL OF MEDICINE · PI YANG, QINGLIN · 1989 to 2009
$19.8M
TISSUE CULTURE MODEL FOR RETINITIS PIGMENTOSA--A MOLECULAR APPROACHR25GM058268 · NIGMS · MOREHOUSE SCHOOL OF MEDICINE · PI HARRIS-HOOKER, SANDRA, STILES, JONATHAN K. · 1998 to 2023
$16.5M
WARCEFU54RR026137 · NCRR · MOREHOUSE SCHOOL OF MEDICINE · PI FOREMAN, MARILYN G. · 2009 to 2011
$14.6M
Cerebral Malaria Neurological Disorders in IndiaR21TW006804 · FIC · MOREHOUSE SCHOOL OF MEDICINE · PI STILES, JONATHAN K. · 2003 to 2005
$355k
FIC NIH HHS R21 TW006804NCRR NIH HHS G12 RR003034NCRR NIH HHS RR03034NCRR NIH HHS U54 RR026137NIGMS NIH HHS R25 GM058268NIGMS NIH HHS SO6GM08248NIMHD NIH HHS U54 MD007588
6 · The paper itself

Abstract

backgroundCerebral malaria (CM) is a major cause of malaria mortality. Sequestration of infected red blood cells and leukocytes in brain vessels coupled with the production of pro-inflammatory factors contribute to CM. CXCL-10 a chemokine that is chemotactic to T cells has been linked to fatal CM. Mice deficient for CXCL-10 gene are resistant to murine CM, while antibody ablation of CXCL-10 enhanced the production of regulatory T cells (CD4+Cd25+Foxp3+) and IL-10 which regulate the immune system. Interleukin-2 (IL-2), a pro-inflammatory cytokine implicated in malaria pathogenesis has also been shown to be a key regulator of Foxp3. However the role of Foxp3 in resistant murine CM is not well understood.

methodsThe hypothesis that resistance of CXCL-10-/- mice to murine CM may be due to enhanced expression of Foxp3 in concert with IL-10 and IL-2 was tested. CXCL-10-/- and WT C57BL/6 mice were infected with Plasmodium berghei ANKA and evaluated for CM symptoms. Brain, peripheral blood mononuclear cells (PBMCs) and plasma were harvested from infected and uninfected mice at days 2, 4 and 8. Regulatory T cells (CD4+CD25+) and non-T regs (CD4+CD25-) were isolated from PBMCs and cultured with P. berghei antigens in vitro with dendritic cells as antigen presenting cells. Regulatory T cell transcription and specific factor Foxp3, was evaluated in mouse brain and PBMCs by realtime-PCR and Western blots while IL-10, and IL-2 were evaluated in plasma and cultured supernatants by ELISA.

resultsWild type mice exhibited severe murine CM symptoms compared with CXCL-10-/- mice. Foxp3 mRNA and protein in brain and PBMC's of CXCL-10-/- mice was significantly up-regulated (p < 0.05) by day 4 post-infection (p.i) compared with WT. Plasma levels of IL-10 and IL-2 in infected CXCL-10-/- were higher than in WT mice (p < 0.05) at days 2 and 4 p.i. Ex-vivo CD4+CD25+ T cells from CXCL-10-/- re-stimulated with P. berghei antigens produced more IL-10 than WT CD4+CD25+ T cells.

conclusionThe results indicate that in the absence of CXCL-10, the resulting up-regulation of Foxp3, IL-10 and IL-2 may be involved in attenuating fatal murine CM.

Indexed as

AnimalsBlotting, WesternBrainCD4 AntigensChemokine CXCL10Enzyme-Linked Immunosorbent AssayForkhead Transcription FactorsInterleukin-10Interleukin-2Malaria, CerebralMiceMice, Inbred C57BLPlasmodium bergheiPolymerase Chain ReactionUp-RegulationCD4 AntigensChemokine CXCL10Cxcl10 protein, mouseForkhead Transcription FactorsFoxp3 protein, mouseIL10 protein, mouseInterleukin-10Interleukin-2

Identifiers

PMID21439091
PMCPMC3078901
OpenAlexW2133058456

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.