Evidence map›Paper›PMID 24053720›Full record

ArticleBMC immunology2013

Prothymosin α and a prothymosin α-derived peptide enhance T(H)1-type immune responses against defined HER-2/neu epitopes.

Kyriaki Ioannou, Evelyna Derhovanessian, Eleni Tsakiri, Pinelopi Samara, Hubert Kalbacher, Wolfgang Voelter, Ioannis P Trougakos, Graham Pawelec, Ourania E Tsitsilonis

Open access · goldAbstract read
In one paragraph

Article in BMC immunology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

12 citing papers in PubMed, 23 citations in OpenAlex.

  1. Review
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  8. Antiproliferative Activity of (-)-Rabdosiin Isolated fromMedicines (Basel, Switzerland) · 2019
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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

9 authors at 2 institutions in 2 countries.

Kyriaki IoannouDepartment of Animal and Human Physiology, Faculty of Biology, University of Athens, Athens 15784, Greece. rtsitsil@biol.uoa.gr.
Evelyna Derhovanessian
Eleni Tsakiri
Pinelopi Samara
Hubert Kalbacher
Wolfgang Voelter
Ioannis P Trougakos
Graham Pawelec
Ourania E Tsitsilonis
National and Kapodistrian University of Athens · GRUniversity of Tübingen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundActive cancer immunotherapies are beginning to yield clinical benefit, especially those using peptide-pulsed dendritic cells (DCs). Different adjuvants, including Toll-like receptor (TLR) agonists, commonly co-administered to cancer patients as part of a DC-based vaccine, are being widely tested in the clinical setting. However, endogenous DCs in tumor-bearing individuals are often dysfunctional, suggesting that ex vivo educated DCs might be superior inducers of anti-tumor immune responses. We have previously shown that prothymosin alpha (proTα) and its immunoreactive decapeptide proTα(100-109) induce the maturation of human DCs in vitro. The aim of this study was to investigate whether proTα- or proTα(100-109)-matured DCs are functionally competent and to provide preliminary evidence for the mode of action of these agents.

resultsMonocyte-derived DCs matured in vitro with proTα or proTα(100-109) express co-stimulatory molecules and secrete pro-inflammatory cytokines. ProTα- and proTα(100-109)-matured DCs pulsed with HER-2/neu peptides induce TH1-type immune responses, prime autologous naïve CD8-positive (+) T cells to lyse targets expressing the HER-2/neu epitopes and to express a polyfunctional profile, and stimulate CD4+ T cell proliferation in an HER-2/neu peptide-dependent manner. DC maturation induced by proTα and proTα(100-109) is likely mediated via TLR-4, as shown by assessing TLR-4 surface expression and the levels of the intracellular adaptor molecules TIRAP, MyD88 and TRIF.

conclusionsOur results suggest that proTα and proTα(100-109) induce both the maturation and the T cell stimulatory capacity of DCs. Although further studies are needed, evidence for a possible proTα and proTα(100-109) interaction with TLR-4 is provided. The initial hypothesis that proTα and the proTα-derived immunoactive decapeptide act as "alarmins", provides a rationale for their eventual use as adjuvants in DC-based anti-cancer immunotherapy.

Indexed as

Adaptor Proteins, Vesicular TransportCD4-Positive T-LymphocytesCD8-Positive T-LymphocytesCell DifferentiationCell ProliferationCells, CulturedCytokinesDendritic CellsEpitopesErb-b2 Receptor Tyrosine KinasesFlow CytometryHumansImmunoblottingImmunotherapy, AdoptiveLymphocyte ActivationMembrane GlycoproteinsAdaptor Proteins, Vesicular TransportCytokinesEpitopesErb-b2 Receptor Tyrosine KinasesMembrane GlycoproteinsMyeloid Differentiation Factor 88PeptidesProtein Precursorsprothymosin alphaReceptors, Interleukin-1ThymosinTICAM1 protein, humanTIRAP protein, humanToll-Like Receptor 4

Identifiers

PMID24053720
PMCPMC3852324
OpenAlexW2048662266

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.