Evidence map›Paper›PMID 28288575›Full record

ArticleBMC microbiology2017

Lactobacillus-derived extracellular vesicles enhance host immune responses against vancomycin-resistant enterococci.

Ming Li, Kiho Lee, Min Hsu, Gerard Nau, Eleftherios Mylonakis, Bharat Ramratnam

Open access · goldAbstract read
In one paragraph

Article in BMC microbiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 97 papers.

0numbers the graph read from it
0cells of the map it votes in
97citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

97 citing papers in PubMed, 169 citations in OpenAlex.

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  12. Enhanced Longevity and Immunity inFood science of animal resources · 2025
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37 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

6 authors at 2 institutions in 1 country.

Ming LiDivision of Infectious Diseases, The Warren Alpert Medical School of Brown University, Providence, RI, 02903, USA. ming.li@brown.edu.
Kiho LeeDivision of Infectious Diseases, The Warren Alpert Medical School of Brown University, Providence, RI, 02903, USA.
Min HsuDivision of Infectious Diseases, The Warren Alpert Medical School of Brown University, Providence, RI, 02903, USA.
Gerard NauDivision of Infectious Diseases, The Warren Alpert Medical School of Brown University, Providence, RI, 02903, USA.
Eleftherios MylonakisDivision of Infectious Diseases, The Warren Alpert Medical School of Brown University, Providence, RI, 02903, USA.
Bharat RamratnamDivision of Infectious Diseases, The Warren Alpert Medical School of Brown University, Providence, RI, 02903, USA.
Brown University · USCenter for Cancer Research · US

Funding

Tracking and Evaluation CoreU54GM115677 · NIGMS · BROWN UNIVERSITY · PI ROUNDS, SHARON IRENE SMITH · 2016 to 2025
$45.0M
COBRE Center for Cancer Research DevelopmentP30GM110759 · NIGMS · RHODE ISLAND HOSPITAL · PI GRUPPUSO, PHILIP A. · 2015 to 2019
$6.3M
Reproductive Hormones and their impact on HIV-1 acquisitionR01HD072693 · NICHD · RHODE ISLAND HOSPITAL · PI CU-UVIN, SUSAN, GUPTA, PHALGUNI · 2012 to 2016
$2.3M
Studies in HIV-1 Pathogenesis and TransmissionK24HD080539 · NICHD · RHODE ISLAND HOSPITAL · PI RAMRATNAM, BHARAT · 2014 to 2018
$807k
NICHD NIH HHS K24 HD080539NICHD NIH HHS R01 HD072693NIGMS NIH HHS P30 GM110759NIGMS NIH HHS U54 GM115677
6 · The paper itself

Abstract

backgroundProbiotic bacteria are known to modulate host immune responses against various pathogens. Recently, extracellular vesicles (EVs) have emerged as potentially important mediators of host-pathogen interactions. In this study, we explored the role of L. plantarum derived EVs in modulating host responses to vancomycin-resistant Enterococcus faecium (VRE) using both Caenorhabditis elegans and human cells.

resultsOur previous work has shown that probiotic conditioning C. elegans with L. acidophilus NCFM prolongs the survival of nematodes exposed to VRE. Similarly, L. plantarum WCFS1 derived extracellular vesicles (LDEVs) also significantly protected the worms against VRE infection. To dissect the molecular mechanisms of this EV-induced protection, we found that treatment of C. elegans with LDEVs significantly increased the transcription of host defense genes, cpr-1 and clec-60. Both cpr-1 and clec-60 have been previously reported to have protective roles against bacterial infections. Incubating human colon-derived Caco-2 cells with fluorescent dye-labeled LDEVs confirmed that LDEVs could be transported into the mammalian cells. Furthermore, LDEV uptake was associated with significant upregulation of CTSB, a human homologous gene of cpr-1, and REG3G, a human gene that has similar functions to clec-60.

conclusionsWe have found that EVs produced from L. plantarum WCFS1 up-regulate the expression of host defense genes and provide protective effects on hosts. Using probiotic-derived EVs instead of probiotic bacteria themselves, this study provides a new direction to treat antimicrobial resistant pathogens, such as VRE.

Indexed as

AnimalsCaco-2 CellsCaenorhabditis elegansCell SurvivalExtracellular VesiclesGene Expression RegulationGram-Positive Bacterial InfectionsHost-Pathogen InteractionsHumansLactiplantibacillus plantarumLactobacillusMicroscopy, ElectronProbioticsVancomycin-Resistant EnterococciCTSBExtracellular vesiclesLactobacillusLDEVsREG3GVancomycin-resistant enterococciVRE

Identifiers

PMID28288575
PMCPMC5348868
OpenAlexW2596602467

What OpenQuestion holds

Textmetadata
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.