Evidence map›Paper›PMID 40617833›Full record

ArticleScientific reports2025

Lactose fermenting enteroinvasive Escherichia coli from diarrhoeal cases confers enhanced virulence.

Debjani Ghosh, Prolay Halder, Prosenjit Samanta, Goutam Chowdhury, Sreeja Shaw, Puja Bose, Deboleena Roy, Nivedita Roy, Kei Kitahara, Thandavarayan Ramamurthy and 4 more

Abstract read
In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Article
  2. 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

14 authors.

Debjani GhoshDivision of Bacteriology, ICMR-National Institute for Research in Bacterial Infections (ICMR-NIRBI), P 33, CIT Road, Scheme XM, Beliaghata, Kolkata, 700010, India.
Prolay HalderDivision of Bacteriology, ICMR-National Institute for Research in Bacterial Infections (ICMR-NIRBI), P 33, CIT Road, Scheme XM, Beliaghata, Kolkata, 700010, India.
Prosenjit SamantaDivision of Bacteriology, ICMR-National Institute for Research in Bacterial Infections (ICMR-NIRBI), P 33, CIT Road, Scheme XM, Beliaghata, Kolkata, 700010, India.
Goutam ChowdhuryDivision of Bacteriology, ICMR-National Institute for Research in Bacterial Infections (ICMR-NIRBI), P 33, CIT Road, Scheme XM, Beliaghata, Kolkata, 700010, India.
Sreeja ShawDivision of Bacteriology, ICMR-National Institute for Research in Bacterial Infections (ICMR-NIRBI), P 33, CIT Road, Scheme XM, Beliaghata, Kolkata, 700010, India.
Puja BoseDivision of Bacteriology, ICMR-National Institute for Research in Bacterial Infections (ICMR-NIRBI), P 33, CIT Road, Scheme XM, Beliaghata, Kolkata, 700010, India.
Deboleena RoyDivision of Bacteriology, ICMR-National Institute for Research in Bacterial Infections (ICMR-NIRBI), P 33, CIT Road, Scheme XM, Beliaghata, Kolkata, 700010, India.
Nivedita RoyDivision of Bacteriology, ICMR-National Institute for Research in Bacterial Infections (ICMR-NIRBI), P 33, CIT Road, Scheme XM, Beliaghata, Kolkata, 700010, India.
Kei KitaharaCollaborative Research Centre of Okayama University for Infectious Diseases, ICMR-National Institute for Research in Bacterial Infections, Kolkata, India.
Thandavarayan RamamurthyDivision of Bacteriology, ICMR-National Institute for Research in Bacterial Infections (ICMR-NIRBI), P 33, CIT Road, Scheme XM, Beliaghata, Kolkata, 700010, India.
Hemanta KoleyDivision of Bacteriology, ICMR-National Institute for Research in Bacterial Infections (ICMR-NIRBI), P 33, CIT Road, Scheme XM, Beliaghata, Kolkata, 700010, India.
Shin-Ichi MiyoshiGraduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan.
Shanta DuttaDivision of Bacteriology, ICMR-National Institute for Research in Bacterial Infections (ICMR-NIRBI), P 33, CIT Road, Scheme XM, Beliaghata, Kolkata, 700010, India.
Asish Kumar MukhopadhyayDivision of Bacteriology, ICMR-National Institute for Research in Bacterial Infections (ICMR-NIRBI), P 33, CIT Road, Scheme XM, Beliaghata, Kolkata, 700010, India. asish_mukhopadhyay@yahoo.com.

Funding

Japan Agency for Medical Research and Development JP21wm0125004Japan Agency for Medical Research and Development JP23wm0225021
6 · The paper itself

Abstract

Enteroinvasive Escherichia coli (EIEC), known for causing bacillary dysentery akin to Shigella species, comprises both lactose-fermenting (LF) and non-lactose-fermenting (NLF) isolates. While NLF-EIEC is a well-established pathogen associated with acute dysentery and harbours classical Shigella-like virulence factors, the role of LF-EIEC in human disease remains underexplored. In this study, we sought to characterize LF-EIEC clinical isolates and assessed their pathogenic potential in comparison to NLF-EIEC. Among 13,682 diarrhoeal stool specimens, six LF and nine NLF-EIEC were isolated, predominantly belonging to serogroups O28ac, O125, O136, and O152. Unlike other E. coli, all the EIEC isolates were non-motile. Both the types of EIEC had multiple plasmids harbouring several virulence encoding genes (ipaBCD, ial, virF, sig, sepA and ipaH). Resistance to recent generation antibiotics were mostly confined to NLF-EIEC but some of the LF-EIEC were resistant only to ceftriaxone. Higher invasion ability and significant increase in the expression of virulence encoding genes by the LF-EIEC (p < 0.05) were noted during infection to Int407 cell-line. Additionally, LF-EIEC exhibited extensive colonization of the mouse intestine and expressed severe keratoconjunctivitis in guinea pigs. Together, our findings highlight LF-EIEC as an emerging pathogenic variant warranting heightened surveillance and comprehensive investigation to better understand its epidemiological and clinical significance.

Indexed as

DiarrheaEscherichia coliEscherichia coli InfectionsLactoseAnimalsAnti-Bacterial AgentsFecesFemaleFermentationGuinea PigsHumansMiceVirulenceVirulence FactorsAnti-Bacterial AgentsLactoseVirulence FactorsAntibiotic resistanceBacterial infectionsDiarrhoeaEnteroinvasive Escherichia coliKeratoconjunctivitisPathogenesis

Identifiers

PMID40617833
PMCPMC12228690

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.