Evidence map›Paper›PMID 35861532›Full record

ArticleInfection and immunity2022

Disruption of sncRNA Improves the Protective Efficacy of Outer Membrane Vesicles against Helicobacter pylori Infection in a Mouse Model.

Biaoxian Li, Yilian Xu, Tian Xu, Zhicheng Guo, Qianwen Xu, Yi Li, Lingbin Zeng, Xiaotian Huang, Qiong Liu

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
5.0field-weighted citation impact, top 4% 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

15 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Adjuvants forVirulence · 2024
    Review
  9. Review
  10. Article
  11. Review
  12. Outer Membrane Vesicle Vaccine Platforms.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2024
    Review
  13. Frontiers in immunology · 2024
    Review
  14. Article
  15. 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

9 authors at 1 institution in 1 country.

Biaoxian Li *Department of Medical Microbiology, School of Medicine, Nanchang Universitygrid.260463.5, Nanchang, China.
Yilian Xu *Department of Medical Microbiology, School of Medicine, Nanchang Universitygrid.260463.5, Nanchang, China.
Tian XuDepartment of Medical Microbiology, School of Medicine, Nanchang Universitygrid.260463.5, Nanchang, China.
Zhicheng GuoDepartment of Medical Microbiology, School of Medicine, Nanchang Universitygrid.260463.5, Nanchang, China.
Qianwen XuDepartment of Medical Microbiology, School of Medicine, Nanchang Universitygrid.260463.5, Nanchang, China.
Yi LiDepartment of Medical Microbiology, School of Medicine, Nanchang Universitygrid.260463.5, Nanchang, China.
Lingbin ZengMolecular Diagnosis and Precision Medicine Center, Medical Examination Center, The First Affiliated Hospital of Nanchang Universitygrid.260463.5, Nanchang, China.
Xiaotian HuangDepartment of Medical Microbiology, School of Medicine, Nanchang Universitygrid.260463.5, Nanchang, China.
Qiong LiuDepartment of Medical Microbiology, School of Medicine, Nanchang Universitygrid.260463.5, Nanchang, China.ORCID 0000-0002-8950-6133
Nanchang University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The outer membrane vesicles (OMVs) secreted by Helicobacter pylori contain various bacterial components, such as proteins, phospholipids, toxins, and nucleic acids, including small noncoding RNA (sncRNA), which have regulatory functions in cell envelope structure, metabolism, bacterial communication, biofilm formation, and virulence. We previously showed that knocking out sncRNAs sR-989262 and sR-2509025 at the cellular level increased interleukin 8 (IL-8) levels in mice exposed to OMVs. In this study, we show that immunization with ΔsR-989262 and ΔsR-2509025 OMVs intragastrically significantly increased immunoglobulin G (IgG) and secreted IgA levels in mice compared to wild-type OMVs and without weight changes, which indicated that sncRNA-deficient OMVs are relatively safe to immunize mice. The detection of IgG subtypes IgG1 and IgG2c showed that the sncRNA-deficient OMVs primarily stimulate the T helper 2 (Th2)-mediated immune response. Moreover, levels of the cytokines IL-4, IL-13, gamma interferon (IFN-γ), IL-12 (p40), IL-8, and IL-17 indicate that ΔsR-989262 and ΔsR-2509025 OMVs trigger the Th2-type immune response but primarily trigger a Th1-mediated and Th17-mediated immune response. These findings show that OMV-encapsulated sncRNA plays an important role in regulating the immune response in hosts infected by H. pylori at the animal level. Moreover, they show that knocking out of sR-989262 and sR-2509025 improves the immunogenicity and protective efficacy of OMVs, and this may be beneficial to the design of OMV-based H. pylori vaccines.

Indexed as

Helicobacter InfectionsHelicobacter pyloriRNA, Small UntranslatedAnimalsBacterial Outer Membrane ProteinsDisease Models, AnimalImmunoglobulin GInterleukin-8MiceBacterial Outer Membrane ProteinsImmunoglobulin GInterleukin-8RNA, Small UntranslatedHelicobacter pyloriimmune protective efficacyouter membrane vesiclessncRNA

Identifiers

PMID35861532
PMCPMC9387243
OpenAlexW4286111220

What OpenQuestion holds

Textmetadata
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.