Evidence map›Paper›PMID 42192310›Full record

ArticleBMC microbiology2026

Comparative genomics of Sneathia species: insights into pathogenicity and adaptation to the human niche.

Paweł Łaniewski, Nicole R Jimenez, Bonnie L Hurwitz, Melissa M Herbst-Kralovetz

Abstract readComparative Study
In one paragraph

Article in BMC microbiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

4 authors.

Paweł ŁaniewskiDepartment of Basic Medical Sciences, College of Medicine-Phoenix, University of Arizona, 425 N 5th Street, Phoenix, AZ, 85004, USA. laniewski@arizona.edu.
Nicole R JimenezDepartment of Obstetrics and Gynecology, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ, USA.
Bonnie L HurwitzBioinformatics Research Center and Department of Biological Sciences, College of Sciences, North Carolina State University, Raleigh, NC, USA.
Melissa M Herbst-KralovetzDepartment of Basic Medical Sciences, College of Medicine-Phoenix, University of Arizona, 425 N 5th Street, Phoenix, AZ, 85004, USA. mherbst1@arizona.edu.

Funding

Uranium as an Environmental Risk Factor for Cancer Among the NavajoU54CA143924 · NCI · UNIVERSITY OF ARIZONA · PI Melissa Marie Herbst-Kralovetz, JUANITA L. MERCHANT · 2009 to 2026
$26.7M
The Bacterial and Viral Bioinformatics Resource Center (BV-BRC)U24AI183849 · NIAID · UNIVERSITY OF CHICAGO · PI RICK L. STEVENS · 2024 to 2026
$11.3M
American Cancer Society PF-24-1316926-01-MMArizona Biomedical Research Commission RFGA2022-010-05NCI NIH HHS U54 CA143924NCI NIH HHS U54CA143924NIAID NIH HHS U24 AI183849
6 · The paper itself

Abstract

backgroundSneathia are urogenital anaerobes linked to bacterial vaginosis, preterm birth, chorioamnionitis, urethritis, and HPV-mediated cervical carcinogenesis. Two species have been identified: Sneathia vaginalis and Sneathia sanguinegens. Yet, due to their fastidious nature, our knowledge of their pathogenicity is limited.

methodsComparative genomic analysis of 12 Sneathia genomes, including two newly sequenced via whole-genome sequencing, was used to evaluate the pathogenic potential of S. vaginalis and S. sanguinegens.

resultsSneathia species have small genomes (1.25-1.35 Mbp) with low (26.7-29.0%) GC content. The genomes of both species harbor a similar number of subsystems, mostly related to protein processing, metabolism, and energy. Both species encode subsystems for glycogen utilization and lactic and mixed acid fermentation. The genomes of S. vaginalis exhibit a higher potential for carbohydrate and carbohydrate derivative metabolism (gluconate and ascorbic acid catabolism, the Entner-Doudoroff pathway) providing a competitive advantage in nutrient-limited environments. S. sanguinegens genomes show a higher potential for amino sugar (hyaluronic acid and N-acetylneuraminic acid catabolism) and sulfur-containing amino acid metabolism. Sneathia species also encode unique subsystems related to stress response, including oxidative stress, heat shock, and antibiotic resistance. Finally, Sneathia genomes encode both core (shared by all strains) and accessory (specific for species or strains) virulence factors, including exotoxin, additional hemolysins, O-sialoglycoprotein endopeptidase, and adhesins.

conclusionsBoth S. vaginalis and S. sanguinegens are highly adapted to the urogenital niche and exhibit high pathogenic capacities. Genomic information revealed potential mechanisms by which these pathogens enhance their competitiveness within the urogenital tract and likely facilitate microbe-microbe cooperation in polymicrobial communities.

Indexed as

Genome, BacterialAdaptation, PhysiologicalBase CompositionFemaleGenomicsHumansPhylogenyVirulenceVirulence FactorsWhole Genome SequencingVirulence FactorsAnaerobeBacterial vaginosisCervical cancerCervical dysplasiaChorioamnionitisDysbiosisHPVPreterm birthUrethritisVaginal microbiome

Identifiers

PMID42192310
PMCPMC13393775

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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.