Evidence map›Paper›PMID 30557873›Full record

ArticleJournal of innate immunity2019

Downregulation of Microparticle Release and Pro-Inflammatory Properties of Activated Human Polymorphonuclear Neutrophils by LMW Fucoidan.

João Alfredo Moraes, Ana Clara Frony, Pedro Barcellos-de-Souza, Marcel Menezes da Cunha, Thayanne Brasil Barbosa Calcia, Claudia Farias Benjamim, Catherine Boisson-Vidal, Christina Barja-Fidalgo

Open access · goldAbstract read
In one paragraph

Article in Journal of innate immunity, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

15 citing papers in PubMed, 19 citations in OpenAlex.

  1. Trial
  2. Article
  3. Multimodal Imaging Reveals Rapid Catecholamine Uptake and Release by Neutrophils.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  4. Review
  5. Article
  6. Effect ofToxins · 2021
    Article
  7. Antitumor effect and molecular mechanism of fucoidan in NSCLC.BMC complementary medicine and therapies · 2021
    Article
  8. Article
  9. Article
  10. Review
  11. Who is WHO?Journal of innate immunity · 2020
    Article
  12. Serious, Severe, Sepsis.Journal of innate immunity · 2020
    Article
  13. Article
  14. Review
  15. The Extracellular Matrix: Reloaded Revolutions.Journal of innate immunity · 2019
    Article
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

8 authors at 3 institutions in 2 countries.

João Alfredo MoraesLaboratório de Farmacologia Celular e Molecular, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil.
Ana Clara FronyLaboratório de Farmacologia Celular e Molecular, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil.
Pedro Barcellos-de-SouzaLaboratório de Farmacologia Celular e Molecular, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil.
Marcel Menezes da CunhaNúcleo Multidisciplinar de Pesquisa em Biologia-NUMPEX-BIO, Universidade Federal do Rio de Janeiro, Xerém, Brazil.
Thayanne Brasil Barbosa CalciaLaboratório de Imunologia Molecular, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
Claudia Farias BenjamimLaboratório de Imunologia Molecular, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
Catherine Boisson-VidalINSERM U1140, Université Paris Descartes, Sorbonne Paris Cité, Paris, France.
Christina Barja-FidalgoLaboratório de Farmacologia Celular e Molecular, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil, barja-fidalgo@uerj.br.
Universidade do Estado do Rio de Janeiro · BRUniversidade Federal do Rio de Janeiro · BRUniversité Paris Cité · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Exposition of neutrophils (polymorphonuclear neutrophils, PMNs) to bacterial products triggers exacerbated activation of these cells, increasing their harmful effects on host tissues. We evaluated the possibility of interfering with the classic immune innate responses of human PMNs exposed to bacterial endotoxin (lipopolysaccharide, LPS), and further stimulated with bacterial formyl peptide (N-formyl-methionine-leucine-phenylalanine, fMLP). We showed that the low- molecular-weight fucoidan (LMW-Fuc), a polysaccharide extracted from brown algae, attenuated the exacerbated activation induced by fMLP on LPS-primed PMNs, in vitro, impairing chemotaxis, NET formation, and the pro-survival and pro-oxidative effects. LMW-Fuc also inhibited the activation of canonical signaling pathways, AKT, bad, p47phox and MLC, activated by the exposition of PMN to bacterial products. The activation of PMN by sequential exposure to LPS and fMLP induced the release of L-selectin+ microparticles, which were able to trigger extracellular reactive oxygen species production by fresh PMNs and macrophages. Furthermore, we observed that LMW-Fuc inhibited microparticle release from activated PMN. In vivo experiments showed that circulating PMN-derived microparticles could be detected in mice exposed to bacterial products (LPS/fMLP), being downregulated in animals treated with LMW-Fuc. The data highlight the autocrine and paracrine role of pro-inflammatory microparticles derived from activated PMN and demonstrate the anti-inflammatory effects of LMW-Fuc on these cells.

Indexed as

AnimalsCell-Derived MicroparticlesCells, CulturedCell SurvivalChemotaxisExtracellular TrapsHumansImmunity, InnateLipopolysaccharidesL-SelectinMiceMice, Inbred BALB CNeutrophil ActivationNeutrophilsN-Formylmethionine Leucyl-PhenylalanineOxidative StressfucoidanLipopolysaccharidesL-SelectinN-Formylmethionine Leucyl-PhenylalaninePolysaccharidesReactive Oxygen SpeciesInflammationLMW fucoidanMicroparticlesPolymorphonuclear neutrophilsReactive oxygen species

Identifiers

PMID30557873
PMCPMC6738154
OpenAlexW2905614701

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.