Evidence map›Paper›PMID 29691472›Full record

ArticleScientific reports2018

Production and delivery of Helicobacter pylori NapA in Lactococcus lactis and its protective efficacy and immune modulatory activity.

Xiaoyan Peng, Rongguang Zhang, Guangcai Duan, Chen Wang, Nan Sun, Linghan Zhang, Shuaiyin Chen, Qingtang Fan, Yuanlin Xi

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
5.0field-weighted citation impact, top 5% 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

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 54 citations in OpenAlex.

  1. Journal of microbiology and biotechnology · 2025
    Pooled it
  2. Pharmaceutics · 2026
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  6. Effect ofImmunotherapy · 2025
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  9. Developing a potent vaccine againstExpert reviews in molecular medicine · 2024
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  13. Profiling of endogenous metabolites and changes in intestinal microbiota distribution after GEN-001 (The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2024
    Article
  14. Novel therapeutic regimens againstFrontiers in microbiology · 2024
    Review
  15. Review
  16. The Role ofInternational journal of molecular sciences · 2022
    Review
  17. Immunostimulatory effects of dairy probiotic strainsJournal of animal science and technology · 2022
    Article
  18. Article
  19. Review
  20. Transient recombinant expression of highly immunogenicBiotechnology reports (Amsterdam, Netherlands) · 2022
    Article
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 2 institutions in 1 country.

Xiaoyan PengDepartment of Epidemiology and Statistics, College of Public Health, Zhengzhou University, Zhengzhou, 450001, China.
Rongguang ZhangDepartment of Epidemiology and Statistics, College of Public Health, Zhengzhou University, Zhengzhou, 450001, China. zrg@zzu.edu.cn.
Guangcai DuanDepartment of Epidemiology and Statistics, College of Public Health, Zhengzhou University, Zhengzhou, 450001, China.
Chen WangDepartment of Epidemiology and Statistics, College of Public Health, Zhengzhou University, Zhengzhou, 450001, China.
Nan SunDepartment of Epidemiology and Statistics, College of Public Health, Zhengzhou University, Zhengzhou, 450001, China.
Linghan ZhangDepartment of Clinical Medicine, Zhengzhou University, Zhengzhou, 450001, China.
Shuaiyin ChenDepartment of Epidemiology and Statistics, College of Public Health, Zhengzhou University, Zhengzhou, 450001, China.
Qingtang FanDepartment of Epidemiology and Statistics, College of Public Health, Zhengzhou University, Zhengzhou, 450001, China.
Yuanlin XiDepartment of Epidemiology and Statistics, College of Public Health, Zhengzhou University, Zhengzhou, 450001, China.
Zhengzhou University · CNXinxiang Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Helicobacter pylori neutrophil-activating protein A subunit (NapA) has been identified as a virulence factor, a protective antigen and a potent immunomodulator. NapA shows unique application potentials for anti-H. pylori vaccines and treatment strategies of certain allergic diseases and carcinomas. However, appropriate production and utilization modes of NapA still remain uncertain to date. This work has established a novel efficient production and utilization mode of NapA by using L. lactis as an expression host and delivery vector, and demonstrated immune protective efficacy and immune modulatory activity of the engineered L. lactis by oral vaccination of mice. It was observed for the first time that H. pylori NapA promotes both polarized Th17 and Th1 responses, which may greatly affect the clinical application of NapA. This report offers a promising anti-H. pylori oral vaccine candidate and a potent mucosal immune modulatory agent. Meanwhile, it uncovers a way to produce and deliver the oral vaccine and immunomodulator by fermentation of food like milk, which might have striking effects on control of H. pylori infection, gastrointestinal cancers, and Th2 bias allergic diseases, including many food allergies.

Indexed as

Adjuvants, ImmunologicAnimalsAntibodies, BacterialAntigens, BacterialBacterial ProteinsBacterial VaccinesCloning, MolecularFemaleHelicobacter InfectionsHelicobacter pyloriImmunologic FactorsLactococcus lactisMaleMiceMice, Inbred BALB CVaccinationAdjuvants, ImmunologicAntibodies, BacterialAntigens, BacterialBacterial ProteinsBacterial VaccinesImmunologic Factorsneutrophil-activating protein A, Helicobacter pylori

Identifiers

PMID29691472
PMCPMC5915382
OpenAlexW2802459336

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.