Cited by 140Reproductive tract infections researchProbiotics and Fermented FoodsGut microbiota and health

Lactobacillus crispatus inhibits growth of Gardnerella vaginalis and Neisseria gonorrhoeae on a porcine vaginal mucosa model

Open access
Breshears, Laura M., Edwards, Vonetta L., Ravel, Jacques, Peterson, Marnie L.·2015·BMC Microbiology

Abstract

BACKGROUND: The vaginal microbiota can impact the susceptibility of women to bacterial vaginosis (BV) and sexually transmitted infections (STIs). BV is characterized by depletion of Lactobacillus spp., an overgrowth of anaerobes (often dominated by Gardnerella vaginalis) and a pH > 4.5. BV is associated with an increased risk of acquiring STIs such as chlamydia and gonorrhea. While these associations have been identified, the molecular mechanism(s) driving the risk of infections are unknown. An ex vivo porcine vaginal mucosal model (PVM) was developed to explore the mechanistic role of Lactobacillus spp. in affecting colonization by G. vaginalis and Neisseria gonorrhoeae. RESULTS: The data presented here demonstrate that all organisms tested can colonize and grow on PVM to clinically relevant densities. Additionally, G. vaginalis and N. gonorrhoeae form biofilms on PVM. It was observed that lactic acid, acetic acid, and hydrochloric acid inhibit the growth of G. vaginalis on PVM in a pH-dependent manner. N. gonorrhoeae grows best in the presence of lactic acid at pH 5.5, but did not grow well at this pH in the presence of acetic acid. Finally, a clinical Lactobacillus crispatus isolate (24-9-7) produces lactic acid and inhibits growth of both G. vaginalis and N. gonorrhoeae on PVM. CONCLUSIONS: These data reveal differences in the effects of pH, various acids and L. crispatus on the growth of G. vaginalis and N. gonorrhoeae on a live vaginal mucosal surface. The PVM is a useful model for studying the interactions of commensal vaginal microbes with pathogens and the mechanisms of biofilm formation on the vaginal mucosa.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1186/s12866-015-0608-0

Cites

82 of 82 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Vaginal Lactobacillus spp. limit colonization of BV-associated microbes and are protective against deleterious viral effects through maintenance of low pH and bacteriocin production.

    “This is significant because it then follows that vaginal Lactobacillus spp. (sensu lato) limit colonization of BV-associated microbes and thus by extension are protective against the aforementioned deleterious viral effects through maintenance of a low pH (Breshears et al., 2015), and bacteriocin production (Stoyancheva et al., 2014).”

    From Viral Infections, the Microbiome, and Probiotics (2021) · cites this paper as Breshears et al., 2015

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Breshears, L. M., Edwards, V. L., Ravel, J., & Peterson, M. L.
Affiliations
  • University of Minnesota (US)
  • University of Maryland, Baltimore (US)
Corresponding author
Peterson, Marnie L.
Venue
BMC Microbiology
Published
2015-12
Volume
15
Issue
1
Pages
276-276
ISSN
1471-2180 (ISSN-L)
OpenAlex
W2192796897
Cited by
140
References
82
Citations by year
2026: 10 · 2025: 12 · 2024: 22 · 2023: 12 · 2022: 13 · 2021: 17 · 2020: 15 · 2019: 11 · 2018: 13 · 2017: 12 · 2016: 3
FWCI
7.86
Type
journal article
Language
en
Open access
Locations
  • BMC Microbiology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • University of Minnesota (22928)
  • National Institute of Allergy and Infectious Diseases (U19AI084044)
Topics
  • Life Sciences › Immunology and Microbiology › Microbiology › Reproductive tract infections research
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
Keywords
Lactobacillus crispatus, Gardnerella vaginalis, Neisseria gonorrhoeae, bacterial vaginosis, vaginal microbiota, biofilm formation, lactic acid, vaginal pH, sexually transmitted infections, vaginal colonization
MeSH terms
Animals, Antibiosis, Carboxylic Acids, Female, Gardnerella vaginalis, Humans, Hydrogen-Ion Concentration, Lactobacillus, Male, Mucous Membrane, Neisseria gonorrhoeae, Organ Culture Techniques, Swine, Vagina, Models, Animal

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review