Evidence map›Paper›PMID 37644520›Full record

ArticleInfectious agents and cancer2023

Evaluation of enterotoxigenic Bacteroides fragilis correlation with the expression of cellular signaling pathway genes in Iranian patients with colorectal cancer.

Leila Dadgar-Zankbar, Aref Shariati, Narjess Bostanghadiri, Zahra Elahi, Shiva Mirkalantari, Shabnam Razavi, Fatemeh Kamali, Davood Darban-Sarokhalil

Open access · goldAbstract read
In one paragraph

Article in Infectious agents and cancer, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 2 pooled it
4.8field-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

26 citing papers in PubMed, 2 syntheses or guidelines pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Prevalence of enterotoxigenicFrontiers in cellular and infection microbiology · 2025
    Pooled it
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  16. Gut Microbiota and Colorectal Cancer: A Balance Between Risk and Protection.International journal of molecular sciences · 2025
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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

8 authors at 3 institutions in 1 country.

Leila Dadgar-ZankbarDepartment of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
Aref ShariatiMolecular and Medicine Research Center, Khomein University of Medical Sciences, Khomein, Iran.
Narjess BostanghadiriDepartment of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
Zahra ElahiDepartment of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
Shiva MirkalantariDepartment of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
Shabnam RazaviDepartment of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
Fatemeh KamaliIran National Tumor Bank, Cancer Institute of Iran, Tehran University of Medical Sciences, Tehran, Iran.
Davood Darban-SarokhalilDepartment of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran. darban.d@iums.ac.ir.
Iran University of Medical Sciences · IRImam Khomeini Hospital · IRTehran University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundColorectal cancer (CRC) is one of the most common cancers all over the world, and dysbiosis in the gut microbiota may play a role in colorectal carcinogenesis. Bacteroides fragilis can lead to tumorigenesis by changing signaling pathways, including the WNT/β-catenin pathway. Therefore, in the present study, we investigated the correlation between the enterotoxigenic B. fragilis amount and the expression of signaling pathway genes involved in CRC. MATERIALS AND

methodsB. fragilis was determined in 30 tumors and adjacent healthy tissues by the qPCR method. Next, the relationship between enterotoxigenic B. fragilis and the expression of signaling pathway genes, including CCND1, TP53, BCL2, BAX, WNT, TCF, AXIN, APC, and CTNNB1 was investigated. Additionally, possible correlations between clinicopathological features of the tumor samples and the abundance of B. fragilis were analyzed.

resultsThe results showed that B. fragilis was detected in 100% of tumor samples and 86% of healthy tissues. Additionally, enterotoxigenic B. fragilis colonized 47% of all samples, and bft-1 toxin was the most frequently found isotype among the samples. The analysis showed that the high level of B. fragilis has a significant relationship with the high expression of AXIN, CTNNB1, and BCL2 genes. On the other hand, our results did not show any possible correlation between this bacterium and the clinicopathological features of the tumor sample.

conclusionB. fragilis had a higher abundance in the tumor samples than in healthy tissues, and this bacterium may lead to CRC by making changes in cellular signaling pathways and genes. Therefore, to better understand the physiological effects of B. fragilis on the inflammatory response and CRC, future research should focus on dissecting the molecular mechanisms by which this bacterium regulates cellular signaling pathways.

Indexed as

Bacteroides fragilisBCL2Colorectal cancerTP53WNT/β-catenin

Identifiers

PMID37644520
PMCPMC10463534
OpenAlexW4386246075

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LicenceCC BY
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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.