Evidence map›Paper›PMID 18784371›Full record

ArticleBlood2008

CD4+ T lymphocytes mediate in vivo clearance of plasmid DNA vaccine antigen expression and potentiate CD8+ T-cell immune responses.

Ralf Geiben-Lynn, John R Greenland, Kwesi Frimpong-Boateng, Nico van Rooijen, Avi-Hai Hovav, Norman L Letvin

Open access · greenAbstract read
In one paragraph

Article in Blood, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
0.9field-weighted citation impact, top 27% 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

19 citing papers in PubMed, 30 citations in OpenAlex.

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  17. PiggyBac transposon-based inducible gene expression in vivo after somatic cell gene transfer.Molecular therapy : the journal of the American Society of Gene Therapy · 2009
    Article
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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

6 authors at 2 institutions in 2 countries.

Ralf Geiben-LynnDivision of Viral Pathogenesis, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA 02115, USA. rgeibenl@bidmc.harvard.edu
John R Greenland
Kwesi Frimpong-Boateng
Nico van Rooijen
Avi-Hai Hovav
Norman L Letvin
Beth Israel Deaconess Medical Center · USVrije Universiteit Amsterdam · NL

Funding

Viral Sequencing CoreU19AI067854 · NIAID · DUKE UNIVERSITY · PI LETVIN, NORMAN L · 2006 to 2011
$290.5M
Viral and Host Determinants of HIV-1 TransmissionU01AI067854 · NIAID · DUKE UNIVERSITY · PI HAYNES, BARTON F · 2005 to 2005
$14.9M
NIAID NIH HHS AI067854NIAID NIH HHS U01 AI067854NIAID NIH HHS U19 AI067854
6 · The paper itself

Abstract

There is evidence that the limited immunogenicity of plasmid DNA vaccines is the result, at least in part, of the rapid clearance of vaccine antigen expression by antigen-specific immune responses. However, the cell types responsible for the clearance of plasmid DNA vaccine antigens are not known. Here we demonstrate that macrophages, NK cells, and CD8(+) T cells did not significantly contribute to the DNA antigen clearance but CD4(+) T cells played the crucial role in attenuating plasmid DNA vaccine antigen expression. Adoptive transfer experiments demonstrate that CD4(+) T cells facilitated DNA vaccine antigen clearance in a Fas/FasL-dependent manner. Furthermore, we show that depletion of CD4(+) T cells prevented the clearance of vaccine antigen and the appearance of a CD8(+) T-cell immune response. Inoculation of major histocompatibility complex class II KO mice with the plasmid DNA led to persistent antigen expression and abolition of a CD8(+) T-cell immune response. Importantly, the prolongation of antigen expression by disrupting the CD4(+) T-cell Fas/FasL myocytes signaling led to a 3- to 5-fold increase of antigen-specific CD8(+) T-cell responses. These data demonstrate a dominant role of CD4(+) T cell-mediated cytotoxicity in plasmid DNA vaccine antigen clearance.

Indexed as

AnimalsAntigensbeta 2-MicroglobulinCD4-Positive T-LymphocytesCD8-Positive T-LymphocytesEpitopes, T-LymphocyteFas Ligand Proteinfas ReceptorImmunity, CellularLuciferasesMiceMice, Inbred C57BLMice, KnockoutPlasmidsVaccines, DNAAntigensbeta 2-MicroglobulinEpitopes, T-LymphocyteFas Ligand Proteinfas ReceptorLuciferasesVaccines, DNA

Identifiers

PMID18784371
PMCPMC2597129
OpenAlexW2004823434

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.