Evidence map›Paper›PMID 39423813›Full record

ArticleCell host & microbe2024

Vaginal lactobacilli produce anti-inflammatory β-carboline compounds.

Virginia J Glick, Cecilia A Webber, Lauren E Simmons, Morgan C Martin, Maryam Ahmad, Cecilia H Kim, Amanda N D Adams, Sunghee Bang, Michael C Chao, Nicole C Howard and 10 more

Abstract read
In one paragraph

Article in Cell host & microbe, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
–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

26 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
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  6. Article
  7. Article
  8. Tenofovir, Interferon Pathways, and Mucosal Immunity: Implications for People Living With HIV.American journal of reproductive immunology (New York, N.Y. : 1989) · 2026
    Review
  9. Article
  10. Article
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  12. Progress in interventions for vaginal microecology.Frontiers in cellular and infection microbiology · 2026
    Review
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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

20 authors.

Virginia J GlickDepartment of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA.
Cecilia A WebberDepartment of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA.
Lauren E SimmonsDepartment of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA.
Morgan C MartinDepartment of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA.
Maryam AhmadDepartment of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA.
Cecilia H KimDepartment of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA.
Amanda N D AdamsDepartment of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA.
Sunghee BangDepartment of Biological Chemistry and Molecular Pharmacology, Harvard Medical School and Blavatnik Institute, Boston, MA 02115, USA.
Michael C ChaoDepartment of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA.
Nicole C HowardDepartment of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA.
Sarah M FortuneDepartment of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA.
Manasvi VermaDepartment of Microbiology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA.
Marco JostDepartment of Microbiology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA.
Lalit K BeuraDepartment of Molecular Microbiology and Immunology, Brown University, Providence, RI 02912, USA.
Michael J JamesDepartment of Biological Chemistry and Molecular Pharmacology, Harvard Medical School and Blavatnik Institute, Boston, MA 02115, USA.
Seo Yoon LeeSchool of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea.
Caroline M MitchellVincent Center for Reproductive Biology, Massachusetts General Hospital, Boston, MA 02114, USA.
Jon ClardyDepartment of Biological Chemistry and Molecular Pharmacology, Harvard Medical School and Blavatnik Institute, Boston, MA 02115, USA.
Ki Hyun KimDepartment of Biological Chemistry and Molecular Pharmacology, Harvard Medical School and Blavatnik Institute, Boston, MA 02115, USA; School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea. Electronic address: khkim83@skku.edu.
Smita GopinathDepartment of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA. Electronic address: sgopinath@hsph.harvard.edu.

Funding

IMMUNE MECHANISMS OF PROTECTION AGAINST MYCOBACTERIUM TUBERCULOSIS CENTER (IMPAC-TB)75N93019C00071 · NIAID · HARVARD UNIVERSITY D/B/A HARVARD SCHOOL OF PUBLIC HEALTH · PI FORTUNE, SARAH · 2019 to 2025
$57.3M
Systems Genetics of TuberculosisP01AI132130 · NIAID · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI BEHAR, SAMUEL M · 2017 to 2021
$11.2M
The Graduate Program in Tropical Infectious Diseases (GPiTID)T32AI049928 · NIAID · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI Flaminia Catteruccia, Phyllis J. Kanki · 2001 to 2026
$5.0M
Epidemiology of Infectious Diseases and BiodefenseT32AI007535 · NIAID · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI GRAD, YONATAN H, MURRAY, MEGAN B · 1998 to 2025
$4.8M
Novel mechanisms of pathogenesis in idiopathic vaginitisR21AI113439 · NIAID · MASSACHUSETTS GENERAL HOSPITAL · PI MITCHELL, CAROLINE M · 2015 to 2016
$499k
Interrogating mucosal resident memory CD8 T cell biology with 3D organoidsR21AI183017 · NIAID · BROWN UNIVERSITY · PI BEURA, LALIT K · 2024 to 2025
$450k
NIAID NIH HHS 75N93019C00071NIAID NIH HHS P01 AI132130NIAID NIH HHS R21 AI113439NIAID NIH HHS R21 AI183017NIAID NIH HHS T32 AI007535NIAID NIH HHS T32 AI049928
6 · The paper itself

Abstract

The optimal vaginal microbiome is a Lactobacillus-dominant community. Apart from Lactobacillus iners, the presence of Lactobacillus species is associated with reduced vaginal inflammation and reduced levels of pro-inflammatory cytokines. Loss of Lactobacillus-dominance is associated with inflammatory conditions, such as bacterial vaginosis (BV). We have identified that Lactobacillus crispatus, a key vaginal bacterial species, produces a family of β-carboline compounds with anti-inflammatory activity. These compounds suppress nuclear factor κB (NF-κB) and interferon (IFN) signaling downstream of multiple pattern recognition receptors in primary human cells and significantly dampen type I IFN receptor (IFNAR) activation in monocytes. Topical application of an anti-inflammatory β-carboline compound, perlolyrine, was sufficient to significantly reduce vaginal inflammation in a mouse model of genital herpes infection. These compounds are enriched in cervicovaginal lavage (CVL) of healthy people compared with people with BV. This study identifies a family of compounds by which vaginal lactobacilli mediate host immune homeostasis and highlights a potential therapeutic avenue for vaginal inflammation.

Indexed as

Anti-Inflammatory AgentsCarbolinesVaginaVaginosis, BacterialAnimalsDisease Models, AnimalFemaleHerpes GenitalisHumansLactobacillusLactobacillus crispatusMiceMice, Inbred C57BLNF-kappa BSignal TransductionAnti-Inflammatory AgentsCarbolinesNF-kappa Bbacterial vaginosisbeta-carbolinesgenital herpesinflammationLactobacillusperlolyrinevaginal microbiomevaginal mucosa

Identifiers

PMID39423813
PMCPMC11694765

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Registered trials

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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.