Evidence map›Paper›PMID 29540208›Full record

Observational studyCritical care (London, England)2018

Exosomes from patients with septic shock convey miRNAs related to inflammation and cell cycle regulation: new signaling pathways in sepsis?

Juliana Monte Real, Ludmila Rodrigues Pinto Ferreira, Gustavo Henrique Esteves, Fernanda Christtanini Koyama, Marcos Vinícius Salles Dias, João Evangelista Bezerra-Neto, Edécio Cunha-Neto, Flavia Ribeiro Machado, Reinaldo Salomão, Luciano Cesar Pontes Azevedo

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in Critical care (London, England), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed, 3 pooled it
6.2field-weighted citation impact, top 3% 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

81 citing papers in PubMed, 3 syntheses or guidelines pooled it, 119 citations in OpenAlex.

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  15. An approach to evaluate the effect of inflammatory microvesicles on CaExperimental biology and medicine (Maywood, N.J.) · 2025
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  19. MicroRNA as Sepsis Biomarkers: A Comprehensive Review.International journal of molecular sciences · 2024
    Review
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21 more citing papers are in PubMed but not listed here.

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

10 authors at 6 institutions in 1 country.

Juliana Monte RealResearch and Education Institute, Hospital Sirio-Libanes, Rua Professor Daher Cutait 69, São Paulo, SP, 01539-001, Brazil.
Ludmila Rodrigues Pinto FerreiraMorphology Department, Instituto de Ciencias Biologicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
Gustavo Henrique EstevesUniversidade Estadual da Paraíba, Centro de Ciências e Tecnologia, Campina Grande, Brazil.
Fernanda Christtanini KoyamaResearch and Education Institute, Hospital Sirio-Libanes, Rua Professor Daher Cutait 69, São Paulo, SP, 01539-001, Brazil.
Marcos Vinícius Salles DiasInternational Research Center, A.C.Camargo Cancer Center, São Paulo, Brazil.
João Evangelista Bezerra-NetoSao Paulo State Cancer Institute, University of São Paulo, São Paulo, Brazil.
Edécio Cunha-NetoLaboratory of Immunology, Heart Institute, University of São Paulo, School of Medicine, São Paulo, Brazil.
Flavia Ribeiro MachadoFederal University of São Paulo, São Paulo, Brazil.
Reinaldo SalomãoFederal University of São Paulo, São Paulo, Brazil.
Luciano Cesar Pontes AzevedoResearch and Education Institute, Hospital Sirio-Libanes, Rua Professor Daher Cutait 69, São Paulo, SP, 01539-001, Brazil. lucianoazevedo@uol.com.br.ORCID http://orcid.org/0000-0001-6759-3910
Universidade de São Paulo · BRUniversidade Federal de São Paulo · BRAC Camargo Hospital · BRInstituto Paulo Gontijo · BRUniversidade Estadual da Paraíba · BRUniversidade Federal de Minas Gerais · BR

Funding

Fundação de Amparo à Pesquisa do Estado de São Paulo 10/52554-1
6 · The paper itself

Abstract

backgroundExosomes isolated from plasma of patients with sepsis may induce vascular apoptosis and myocardial dysfunction by mechanisms related to inflammation and oxidative stress. Despite previous studies demonstrating that these vesicles contain genetic material related to cellular communication, their molecular cargo during sepsis is relatively unknown. In this study, we evaluated the presence of microRNAs (miRNAs) and messenger RNAs (mRNAs) related to inflammatory response and redox metabolism in exosomes of patients with septic shock.

methodsBlood samples were collected from 24 patients with septic shock at ICU admission and after 7 days of treatment. Twelve healthy volunteers were used as control subjects. Exosomes were isolated by ultracentrifugation, and their miRNA and mRNA content was evaluated by qRT-PCR array.

resultsAs compared with healthy volunteers, exosomes from patients with sepsis had significant changes in 65 exosomal miRNAs. Twenty-eight miRNAs were differentially expressed, both at enrollment and after 7 days, with similar kinetics (18 miRNAs upregulated and 10 downregulated). At enrollment, 35 differentially expressed miRNAs clustered patients with sepsis according to survival. The pathways enriched by the miRNAs of patients with sepsis compared with control subjects were related mostly to inflammatory response. The comparison of miRNAs from patients with sepsis according to hospital survival demonstrated pathways related mostly to cell cycle regulation. At enrollment, sepsis was associated with significant increases in the expression of mRNAs related to redox metabolism (myeloperoxidase, 64-fold; PRDX3, 2.6-fold; SOD2, 2.2-fold) and redox-responsive genes (FOXM1, 21-fold; SELS, 16-fold; GLRX2, 3.4-fold). The expression of myeloperoxidase mRNA remained elevated after 7 days (65-fold).

conclusionsExosomes from patients with septic shock convey miRNAs and mRNAs related to pathogenic pathways, including inflammatory response, oxidative stress, and cell cycle regulation. Exosomes may represent a novel mechanism for intercellular communication during sepsis.

Indexed as

AdultAgedBrazilExosomesFemaleForkhead Box Protein M1GlutaredoxinsHumansInflammationIntensive Care UnitsMaleMembrane ProteinsMicroRNAsMiddle AgedOxidative StressPatient Outcome AssessmentForkhead Box Protein M1GLRX2 protein, humanGlutaredoxinsMembrane ProteinsMicroRNAsPeroxidasePeroxiredoxin IIIPRDX3 protein, humanRNA, MessengerSelenoproteinsSELENOS protein, humanSuperoxide DismutaseSuperoxide Dismutase 2ExosomesExtracellular vesiclesInflammatory responseMessenger RNAMicroRNAsOxidative stressSepsis

Identifiers

PMID29540208
PMCPMC5852953
OpenAlexW2791787856

What OpenQuestion holds

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LicenceCC BY
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.