Evidence map›Paper›PMID 27829421›Full record

ArticleBMC veterinary research2016

Bovine lactoferrin free of lipopolysaccharide can induce a proinflammatory response of macrophages.

Nada Zemankova, Katarina Chlebova, Jan Matiasovic, Jana Prodelalova, Jan Gebauer, Martin Faldyna

Open access · goldAbstract read
In one paragraph

Article in BMC veterinary research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

  1. Pooled it
  2. Uptake and nuclear translocation of lactoferrin by porcine monocytes: impact of iron binding, protease activity, and monocyte activation.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2025
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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 1 country.

Nada ZemankovaVeterinary Research Institute, Hudcova 296/70, Brno, 621 00, Czech Republic.
Katarina ChlebovaVeterinary Research Institute, Hudcova 296/70, Brno, 621 00, Czech Republic.
Jan MatiasovicVeterinary Research Institute, Hudcova 296/70, Brno, 621 00, Czech Republic.
Jana ProdelalovaVeterinary Research Institute, Hudcova 296/70, Brno, 621 00, Czech Republic.
Jan GebauerVeterinary Research Institute, Hudcova 296/70, Brno, 621 00, Czech Republic.
Martin FaldynaVeterinary Research Institute, Hudcova 296/70, Brno, 621 00, Czech Republic. faldyna@vri.cz.
Veterinary Research Institute · CZMasaryk University · CZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLactoferrin (LF) is an 80 kDa glycoprotein which is known for its effects against bacteria, viruses and other pathogens. It also has a high potential in nutrition therapy and welfare of people and a variety of animals, including piglets. The ability to bind lipopolysaccharide (LPS) is one of the described anti-inflammatory mechanisms of LF. Previous studies suggested that cells can be stimulated even by LPS-free LF. Therefore, the aim of our study was to bring additional information about this possibility. Porcine monocyte derived macrophages (MDMF) and human embryonic kidney (HEK) cells were stimulated with unpurified LF in complex with LPS and with purified LF without bound LPS.

resultsBoth cell types were stimulated with unpurified as well as purified LF. On the other hand, neither HEK0 cells not expressing any TLR nor HEK4a cells transfected with TLR4 produced any pro-inflammatory cytokine transcripts after stimulation with purified LF. This suggests that purified LF without LPS stimulates cells via another receptor than TLR4. An alternative, TLR4-independent, pathway was further confirmed by analyses of the NF-kappa-B-inducing kinase (NIK) activation. Western blot analyses showed NIK which activates different NFκB subunits compared to LF-LPS signaling via TLR4. Though, this confirmed an alternative pathway which is used by the purified LF free of LPS. This stimulation of MDMF led to low, but significant amounts of pro-inflammatory cytokines, which can be considered as a positive stimulation of the immune system.

conclusionOur results suggest that LF's ability is not only to bind LPS, but LF itself may be a stimulant of pro-inflammatory pathways.

Indexed as

AnimalsCytokinesGene Expression RegulationHEK293 CellsHumansInflammationIntracellular Signaling Peptides and ProteinsLactoferrinLipopolysaccharidesMacrophagesProtein BindingProtein Serine-Threonine KinasesSignal TransductionSwineToll-Like Receptor 4CytokinesIntracellular Signaling Peptides and ProteinsLactoferrinLipopolysaccharidesNik related kinaseProtein Serine-Threonine KinasesToll-Like Receptor 4Inflammatory cytokinesLPSNFκBNIKTLR4

Identifiers

PMID27829421
PMCPMC5103330
OpenAlexW2556656885

What OpenQuestion holds

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LicenceCC BY
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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.