Evidence map›Paper›PMID 32017451›Full record

ArticleCancer medicine2020

Helicobacter pylori infection leads to KLF4 inactivation in gastric cancer through a TET1-mediated DNA methylation mechanism.

Rongrong Zhao, Zhengxia Liu, Wenting Xu, Le Song, Haifeng Ren, Yang Ou, Yakun Liu, Siying Wang

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Cancer medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.8field-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

25 citing papers in PubMed, 54 citations in OpenAlex.

  1. Advances inOncology letters · 2026
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  5. Myeloid-derived suppressor cells modulation in the context of tumor microenvironment for gastric cancer.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025
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  14. Increased 5-hydroxymethylcytosine is a favorable prognostic factor ofWorld journal of gastrointestinal oncology · 2022
    Article
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  17. Emerging Role ofFrontiers in oncology · 2022
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  18. Association betweenPeerJ · 2022
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Rongrong ZhaoDepartment of Physiopathology, Anhui Medical University, Hefei, Anhui, China.ORCID 0000-0001-5626-1961
Zhengxia LiuDepartment of Physiopathology, Anhui Medical University, Hefei, Anhui, China.
Wenting XuDepartment of Physiopathology, Anhui Medical University, Hefei, Anhui, China.
Le SongDepartment of Physiopathology, Anhui Medical University, Hefei, Anhui, China.
Haifeng RenDepartment of Physiopathology, Anhui Medical University, Hefei, Anhui, China.
Yang OuDepartment of Physiopathology, Anhui Medical University, Hefei, Anhui, China.
Yakun LiuDepartment of Physiopathology, Anhui Medical University, Hefei, Anhui, China.
Siying WangDepartment of Physiopathology, Anhui Medical University, Hefei, Anhui, China.
Anhui Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Krüppel-like factor 4 (KLF4) has a tumor suppressor role in the progression of gastric cancer (GC), and inhibition or loss of KLF4 expression was identified in GC. The aim of this study was to explore the new molecular mechanism of KLF4 inactivation in gastric cancer. Herein, we report that Helicobacter pylori infection or Cag pathogenicity island protein A (CagA) gene transduction resulted in KLF4 expression downregulation and promoted gastric epithelial cell and gastric cancel cell proliferation, migration, and colony formation. Mechanistically, we found that CagA gene transduction led to DNA methylation of the KLF4 promoter, an effect that was relevant to the significant downregulation of TET1 expression. Causally, knockdown of TET1 expression decreased KLF4 expression, whereas overexpression of TET1 had the opposite effect. Clinically, we found that KLF4 expression and the 5-hmC levels were lower in GC cells with H pylori infection than in GC cells without H pylori infection. Thus, our study not only sheds new light on how H pylori infection promotes the progression of GC but also elucidates a novel mechanism of KLF4 inactivation in GC pathogenesis. During pathogenesis, an alteration in the H pylori/CagA-TET1-KLF4 signaling pathway plays a critical role, suggesting that this pathway may be a prospective target for gastric carcinoma intervention and therapy.

Indexed as

DNA MethylationGene Expression Regulation, NeoplasticApoptosisBiomarkers, TumorCell MovementCell ProliferationHelicobacter InfectionsHelicobacter pyloriHumansKruppel-Like Factor 4Kruppel-Like Transcription FactorsMixed Function OxygenasesPromoter Regions, GeneticProto-Oncogene ProteinsStomach NeoplasmsTumor Cells, CulturedBiomarkers, TumorKLF4 protein, humanKruppel-Like Factor 4Kruppel-Like Transcription FactorsMixed Function OxygenasesProto-Oncogene ProteinsTET1 protein, humanCagAgastric cancerH pyloriKLF4TET1

Identifiers

PMID32017451
PMCPMC7131848
OpenAlexW3004709197

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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.