Evidence map›Paper›PMID 31827089›Full record

ArticleNature communications2019

Extracellular vesicles from symbiotic vaginal lactobacilli inhibit HIV-1 infection of human tissues.

Rogers A Ñahui Palomino, Christophe Vanpouille, Luca Laghi, Carola Parolin, Kamran Melikov, Peter Backlund, Beatrice Vitali, Leonid Margolis

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 91 papers.

0numbers the graph read from it
0cells of the map it votes in
91citing papers in PubMed
5.0field-weighted citation impact, top 4% 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

91 citing papers in PubMed, 130 citations in OpenAlex.

  1. Trial
  2. Virulence · 2026
    Article
  3. Article
  4. Extracellular Vesicles fromPathogens (Basel, Switzerland) · 2026
    Article
  5. Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Journal of inflammation research · 2026
    Article
  12. Article
  13. Article
  14. mSystems · 2025
    Article
  15. Article
  16. Review
  17. Extracellular vesicles of Gram-negative and Gram-positive probiotics.Journal of microbiology (Seoul, Korea) · 2025
    Review
  18. Article
  19. Review
  20. Review

31 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

8 authors at 2 institutions in 2 countries.

Rogers A Ñahui PalominoSection on Intercellular Interaction, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20814, USA.ORCID http://orcid.org/0000-0003-4923-2120
Christophe VanpouilleSection on Intercellular Interaction, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20814, USA.
Luca LaghiCenter of Foodomics, Department of Agro-Food Science and Technology, University of Bologna, Cesena, 47123, Italy.ORCID http://orcid.org/0000-0003-1593-7376
Carola ParolinDepartment of Pharmacy and Biotechnology, University of Bologna, Bologna, 40126, Italy.ORCID http://orcid.org/0000-0003-1536-9276
Kamran MelikovSection on Membrane Biology, Laboratory of Cellular and Molecular Biophysics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20814, USA.
Peter BacklundBiomedical Mass Spectrometry Core Facility, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20814, USA.
Beatrice VitaliDepartment of Pharmacy and Biotechnology, University of Bologna, Bologna, 40126, Italy.
Leonid MargolisSection on Intercellular Interaction, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20814, USA. margolis@helix.nih.gov.
National Institutes of Health · USUniversity of Bologna · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The vaginal microbiota, dominated by Lactobacillus spp., plays a key role in preventing HIV-1 transmission. Here, we investigate whether the anti-HIV effect of lactobacilli is mediated by extracellular vesicles (EVs) released by these bacteria. Human cervico-vaginal and tonsillar tissues ex vivo, and cell lines were infected with HIV-1 and treated with EVs released by lactobacilli isolated from vaginas of healthy women. EVs released by L. crispatus BC3 and L. gasseri BC12 protect tissues ex vivo and isolated cells from HIV-1 infection. This protection is associated with a decrease of viral attachment to target cells and viral entry due to diminished exposure of Env that mediates virus-cell interactions. Inhibition of HIV-1 infection is associated with the presence in EVs of several proteins and metabolites. Our findings demonstrate that the protective effect of Lactobacillus against HIV-1 is, in part, mediated by EVs released by these symbiotic bacteria. If confirmed in vivo, this finding may lead to new strategies to prevent male-to-female sexual HIV-1 transmission.

Indexed as

Anti-HIV AgentsBacterial ProteinsExtracellular VesiclesFemaleHIV-1HIV InfectionsHumansLactobacillusMicrobiotaVaginaVirus InternalizationAnti-HIV AgentsBacterial Proteins

Identifiers

PMID31827089
PMCPMC6906448
OpenAlexW2995130574

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.