Evidence map›Paper›PMID 38402145›Full record

ArticleMicrobial cell factories2024

Recombinant L. lactis vaccine LL-plSAM-WAE targeting four virulence factors provides mucosal immunity against H. pylori infection.

Furui Zhang, Linhan Ni, Zhen Zhang, Xuegang Luo, Xuequan Wang, Wenmiao Zhou, Jiale Chen, Jing Liu, Yuliang Qu, Kunmei Liu and 1 more

Open access · goldAbstract read
In one paragraph

Article in Microbial cell factories, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
8.6field-weighted citation impact, top 2% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

  1. Bibliometric analysis ofFrontiers in microbiology · 2025
    Pooled it
  2. Beyond Antibiotics: Alternative Strategies TargetingExpert reviews in molecular medicine · 2026
    Review
  3. Article
  4. Review
  5. Article
  6. Review
  7. Frontiers in immunology · 2026
    Review
  8. Vaccines · 2025
    Review
  9. Review
  10. Pivotal role ofFrontiers in medicine · 2024
    Review
  11. Frontiers in immunology · 2024
    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

11 authors at 4 institutions in 1 country.

Furui Zhang *College of First Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, China.
Linhan Ni *College of Pharmacy, Ningxia Medical University, Yinchuan, 750004, China.
Zhen Zhang *Department of Geriatrics and Special Needs Medicine, General Hospital of Ningxia Medical University, Yinchuan, 750004, China.
Xuegang LuoKey Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China.
Xuequan WangKey Laboratory of Radiation Oncology of Taizhou, Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University, Taizhou, 317000, China.
Wenmiao ZhouCollege of First Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, China.
Jiale ChenCollege of First Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, China.
Jing LiuCollege of Laboratory Medicine , Ningxia Medical University, Yinchuan, 750004, China.
Yuliang QuCollege of Laboratory Medicine , Ningxia Medical University, Yinchuan, 750004, China. quyuliang@nxmu.edu.cn.
Kunmei LiuCollege of Pharmacy, Ningxia Medical University, Yinchuan, 750004, China. lkm198507@126.com.
Le GuoCollege of First Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, China. guoletian@163.com.
Ningxia Medical University · CNNingxia Medical University General Hospital · CNTianjin University of Science and Technology · CNWenzhou Medical University · CN

Funding

Key R & D Plan Project of Ningxia Autonomous Region 2020BFG02012National Natural Science Foundation of China 32070930National Natural Science Foundation of China 32160497Natural Science Foundation of Ningxia Province 2022AAC02034Natural Science Foundation of Ningxia Province,China 2023AAC03517Ningxia Youth Top Talent Training Project NYG2022045Science Research Project of Ningxia's Colleges NGY2020043
6 · The paper itself

Abstract

backgroundHelicobacter pylori (H. pylori) causes chronic gastric disease. An efficient oral vaccine would be mucosa-targeted and offer defense against colonization of invasive infection in the digestive system. Proteolytic enzymes and acidic environment in the gastrointestinal tract (GT) can, however, reduce the effectiveness of oral vaccinations. For the creation of an edible vaccine, L. lactis has been proposed as a means of delivering vaccine antigens.

resultsWe developed a plSAM (pNZ8148-SAM) that expresses a multiepitope vaccine antigen SAM-WAE containing Urease, HpaA, HSP60, and NAP extracellularly (named LL-plSAM-WAE) to increase the efficacy of oral vaccinations. We then investigated the immunogenicity of LL-plSAM-WAE in Balb/c mice. Mice that received LL-plSAM-WAE or SAM-WAE with adjuvant showed increased levels of antibodies against H. pylori, including IgG and sIgA, and resulted in significant reductions in H. pylori colonization. Furthermore, we show that SAM-WAE and LL-plSAM-WAE improved the capacity to target the vaccine to M cells.

conclusionsThese findings suggest that recombinant L. lactis could be a promising oral mucosa vaccination for preventing H. pylori infection.

Indexed as

Helicobacter pyloriAdministration, OralAnimalsBacterial VaccinesImmunity, MucosalMiceMice, Inbred BALB CUreaseVaccines, SyntheticVirulence FactorsBacterial VaccinesUreaseVaccines, SyntheticVirulence FactorsHelicobacter pyloriLactic acid bacteriaM cell-targetingMucosal immune responseVaccine delivery system

Identifiers

PMID38402145
PMCPMC10893618
OpenAlexW4392129775

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.