Evidence map›Paper›PMID 39536454›Full record

ArticleVaccine2025

Intranasal immunization with CPAF combined with ADU-S100 induces an effector CD4 T cell response and reduces bacterial burden following intravaginal infection with Chlamydia muridarum.

Taylor B Poston, Jenna Girardi, Marie Kim, Peter Zwarycz, A Grace Polson, Kacy S Yount, Courtne Hanlan, Ian Jaras Salas, Sarah Mae Lammert, Daisy Arroyo and 6 more

Abstract read
In one paragraph

Article in Vaccine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. AFrontiers in immunology · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Frontiers in cellular and infection microbiology · 2025
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

16 authors.

Taylor B PostonDepartment of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States. Electronic address: taylor_poston@med.unc.edu.
Jenna GirardiDepartment of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.
Marie KimPritzker School of Molecular Engineering, University of Chicago, Chicago, IL, United States.
Peter ZwaryczPritzker School of Molecular Engineering, University of Chicago, Chicago, IL, United States.
A Grace PolsonDepartment of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.
Kacy S YountDepartment of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.
Courtne HanlanDepartment of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.
Ian Jaras SalasDepartment of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.
Sarah Mae LammertDepartment of Pathology, University of Chicago, Chicago, IL, United States.
Daisy ArroyoVaxcyte, Inc., San Carlos, CA, United States.
Tony BrunoVaxcyte, Inc., San Carlos, CA, United States.
Manhong WuVaxcyte, Inc., San Carlos, CA, United States.
James RozzelleVaxcyte, Inc., San Carlos, CA, United States.
Jeff FairmanVaxcyte, Inc., San Carlos, CA, United States.
Aaron P Esser-KahnPritzker School of Molecular Engineering, University of Chicago, Chicago, IL, United States.
Toni DarvilleDepartment of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.

Funding

Virology Research Program (Program 4)P30CA016086 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Deborah F. Tate · 1985 to 2026
$201.5M
University of North Carolina - Chlamydia Vaccine Initiative (UNC-CVI)U19AI144181 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI DARVILLE, TONI · 2019 to 2023
$10.7M
Development of a recombinant protein vaccine for Chlamydia trachomatisU01AI182180 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Toni Darville, Aaron P Esser-Kahn · 2024 to 2026
$5.8M
NCI NIH HHS P30 CA016086NIAID NIH HHS U01 AI182180NIAID NIH HHS U19 AI144181
6 · The paper itself

Abstract

Chlamydia trachomatis (Ct) is the most common bacterial sexually transmitted infection globally, and a vaccine is urgently needed to stop transmission and disease. Chlamydial Protease Activity Factor (CPAF) is an immunoprevalent and immunodominant antigen for CD4 T cells and B cells, which makes it a strong vaccine candidate. Due to the tolerogenic nature of the female genital tract (FGT) and its lack of secondary lymphoid tissue, effective induction of protective cell-mediated immunity will likely require potent and safe mucosal adjuvants. To address this need, we produced CPAF in a cell-free protein synthesis platform and adjuvanted it with the TLR9-agonist CpG1826, a synthetic cyclic-di-AMP (CDA) STING (stimulator of interferon genes) agonist ADU-S100, and/or the squalene oil-in-water nanoemulsion, AddaS03. We determined that intranasal immunization with CPAF plus ADU-S100 was well tolerated in female mice, induced CD4 T cells characterized by TNFα production alone or in combination with IL-17 A or IFNγ, significantly reduced bacterial shedding, and shortened the duration of infection in mice intravaginally challenged with Chlamydia muridarum. These data demonstrate the potential for CDA as a mucosal adjuvant for vaccines against Chlamydia genital tract infection.

Indexed as

Administration, IntranasalBacterial VaccinesCD4-Positive T-LymphocytesChlamydia InfectionsChlamydia muridarumAdjuvants, ImmunologicAdjuvants, VaccineAnimalsBacterial LoadDinucleoside PhosphatesEndopeptidasesFemaleImmunizationMiceMice, Inbred C57BLNucleotides, CyclicAdjuvants, ImmunologicAdjuvants, VaccineADU-S100Bacterial VaccinesCPA factordimethyldioctadecylammoniumDinucleoside PhosphatesEndopeptidasesNucleotides, CyclicQuaternary Ammonium CompoundsAddaS03ADU-S100ChlamydiaCpG1826MucosalSTINGT cell

Identifiers

PMID39536454
PMCPMC11817958

What OpenQuestion holds

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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.