Evidence map›Paper›PMID 37612266›Full record

ArticleNPJ biofilms and microbiomes2023

Bacterial lipopolysaccharide modulates immune response in the colorectal tumor microenvironment.

A K Sulit, M Daigneault, E Allen-Vercoe, O K Silander, B Hock, J McKenzie, J Pearson, F A Frizelle, S Schmeier, R Purcell

Abstract read
In one paragraph

Article in NPJ biofilms and microbiomes, 2023. 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
–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

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

  1. Pooled it
  2. Article
  3. Harnessing the microbiome for cancer therapy.Nature reviews. Microbiology · 2026
    Review
  4. Review
  5. Article
  6. Review
  7. Review
  8. Review
  9. Review
  10. Review
  11. Article
  12. Review
  13. Article
  14. MedComm · 2025
    Review
  15. Review
  16. Pasireotide Exerts Anti-Inflammatory Effects in the Endothelium.Journal of biochemical and molecular toxicology · 2025
    Article
  17. Review
  18. Review
  19. Review
  20. 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

10 authors.

A K SulitSchool of Natural Sciences, Massey University, Auckland, New Zealand. iel_sulit@yahoo.com.ORCID http://orcid.org/0000-0002-3643-3348
M DaigneaultDepartment of Molecular and Cellular Biology, University of Guelph, Ontario, Canada.
E Allen-VercoeDepartment of Molecular and Cellular Biology, University of Guelph, Ontario, Canada.ORCID http://orcid.org/0000-0002-8716-327X
O K SilanderSchool of Natural Sciences, Massey University, Auckland, New Zealand.
B HockHaematology Research Group, University of Otago, Christchurch, New Zealand.
J McKenzieHaematology Research Group, University of Otago, Christchurch, New Zealand.
J PearsonBiostatistics and Computational Biology Unit, University of Otago, Christchurch, New Zealand.
F A FrizelleDepartment of Surgery and Critical Care, University of Otago, Christchurch, New Zealand.
S SchmeierSchool of Natural Sciences, Massey University, Auckland, New Zealand.
R PurcellDepartment of Surgery and Critical Care, University of Otago, Christchurch, New Zealand.ORCID http://orcid.org/0000-0002-2684-4530

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Immune responses can have opposing effects in colorectal cancer (CRC), the balance of which may determine whether a cancer regresses, progresses, or potentially metastasizes. These effects are evident in CRC consensus molecular subtypes (CMS) where both CMS1 and CMS4 contain immune infiltrates yet have opposing prognoses. The microbiome has previously been associated with CRC and immune response in CRC but has largely been ignored in the CRC subtype discussion. We used CMS subtyping on surgical resections from patients and aimed to determine the contributions of the microbiome to the pleiotropic effects evident in immune-infiltrated subtypes. We integrated host gene-expression and meta-transcriptomic data to determine the link between immune characteristics and microbiome contributions in these subtypes and identified lipopolysaccharide (LPS) binding as a potential functional mechanism. We identified candidate bacteria with LPS properties that could affect immune response, and tested the effects of their LPS on cytokine production of peripheral blood mononuclear cells (PBMCs). We focused on Fusobacterium periodonticum and Bacteroides fragilis in CMS1, and Porphyromonas asaccharolytica in CMS4. Treatment of PBMCs with LPS isolated from these bacteria showed that F. periodonticum stimulates cytokine production in PBMCs while both B. fragilis and P. asaccharolytica had an inhibitory effect. Furthermore, LPS from the latter two species can inhibit the immunogenic properties of F. periodonticum LPS when co-incubated with PBMCs. We propose that different microbes in the CRC tumor microenvironment can alter the local immune activity, with important implications for prognosis and treatment response.

Indexed as

Colorectal NeoplasmsLipopolysaccharidesBacteriaCytokinesHumansImmunityLeukocytes, MononuclearTumor MicroenvironmentCytokinesLipopolysaccharides

Identifiers

PMID37612266
PMCPMC10447454

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.