Evidence map›Paper›PMID 26422280›Full record

ArticlePloS one2015

Nasal Administration of Cholera Toxin as a Mucosal Adjuvant Damages the Olfactory System in Mice.

Yoshiko Fukuyama, Kazunari Okada, Masahiro Yamaguchi, Hiroshi Kiyono, Kensaku Mori, Yoshikazu Yuki

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 34% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.

  1. Mucosal immunity and vaccine development.Signal transduction and targeted therapy · 2026
    Pooled it
  2. Article
  3. Beyond Antibiotics: Alternative Strategies TargetingExpert reviews in molecular medicine · 2026
    Review
  4. Article
  5. Modular Development of aNanomaterials (Basel, Switzerland) · 2026
    Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Review
  12. Recent advances in enterotoxin vaccine adjuvants.Current opinion in immunology · 2023
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
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

6 authors at 1 institution in 1 country.

Yoshiko FukuyamaDivision of Mucosal Immunology, Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
Kazunari OkadaDivision of Mucosal Immunology, Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
Masahiro YamaguchiDepartment of Physiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Hiroshi KiyonoDivision of Mucosal Immunology, Institute of Medical Science, The University of Tokyo, Tokyo, Japan; International Research and Development Center for Mucosal Vaccine, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
Kensaku MoriDepartment of Physiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Yoshikazu YukiDivision of Mucosal Immunology, Institute of Medical Science, The University of Tokyo, Tokyo, Japan; International Research and Development Center for Mucosal Vaccine, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
The University of Tokyo · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cholera toxin (CT) induces severe diarrhea in humans but acts as an adjuvant to enhance immune responses to vaccines when administered orally. Nasally administered CT also acts as an adjuvant, but CT and CT derivatives, including the B subunit of CT (CTB), are taken up from the olfactory epithelium and transported to the olfactory bulbs and therefore may be toxic to the central nervous system. To assess the toxicity, we investigated whether nasally administered CT or CT derivatives impair the olfactory system. In mice, nasal administration of CT, but not CTB or a non-toxic CT derivative, reduced the expression of olfactory marker protein (OMP) in the olfactory epithelium and olfactory bulbs and impaired odor responses, as determined with behavioral tests and optical imaging. Thus, nasally administered CT, like orally administered CT, is toxic and damages the olfactory system in mice. However, CTB and a non-toxic CT derivative, do not damage the olfactory system. The optical imaging we used here will be useful for assessing the safety of nasal vaccines and adjuvants during their development for human use and CT can be used as a positive control in this test.

Indexed as

Adjuvants, ImmunologicAdministration, IntranasalAnimalsBacterial VaccinesCholera ToxinMaleMice, Inbred BALB COlfactory Marker ProteinOlfactory MucosaOlfactory Receptor NeuronsAdjuvants, ImmunologicBacterial VaccinesCholera ToxinOlfactory Marker ProteinOmp protein, mouse

Identifiers

PMID26422280
PMCPMC4589288
OpenAlexW2236626812

What OpenQuestion holds

Textmetadata
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.