Evidence map›Paper›PMID 20028812›Full record

ArticleInfection and immunity2010

Extracts of the rat tapeworm, Hymenolepis diminuta, suppress macrophage activation in vitro and alleviate chemically induced colitis in mice.

M J G Johnston, A Wang, M E D Catarino, L Ball, V C Phan, J A MacDonald, D M McKay

Abstract read
In one paragraph

Article in Infection and immunity, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

50 citing papers in PubMed, 92 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. The TapewormPathogens (Basel, Switzerland) · 2022
    Review
  9. Enteric Tuft Cells in Host-Parasite Interactions.Pathogens (Basel, Switzerland) · 2021
    Review
  10. Article
  11. Article
  12. Journal of immunology (Baltimore, Md. : 1950) · 2019
    Article
  13. Article
  14. Article
  15. Selected Molecular Mechanisms Involved in the Parasite⁻Host SystemInternational journal of molecular sciences · 2018
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
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

7 authors at 2 institutions in 2 countries.

M J G JohnstonGastrointestinal Research Group, Department of Physiology and Pharmacology, Calvin, Phoebe, and Joan Snyder Institute of Infection, Immunity, and Inflammation, University of Calgary, 3330 Hospital Drive NW, Calgary, Alberta T2N 1N4, Canada.
A Wang
M E D Catarino
L Ball
V C Phan
J A MacDonald
D M McKay
Faculty (United Kingdom) · GBInstitute of Infection and Immunity · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

Analysis of parasite-host interactions can reveal the intricacies of immunity and identify ways to modulate immunopathological reactions. We assessed the ability of a phosphate-buffered saline-soluble extract of adult Hymenolepis diminuta to suppress macrophage (human THP-1 cell line, murine peritoneal macrophages) activity in vitro and the impact of treating mice with this extract on colitis induced by dinitrobenzene sulfonic acid (DNBS). A high-molecular-mass fraction of adult H. diminuta (HdHMW) or excretory/secretory products reduced macrophage activation: lipopolysaccharide (LPS)-induced interleukin-1beta (IL-1beta), IL-6, and tumor necrosis factor alpha (TNF-alpha) and poly(I:C)-induced TNF-alpha and IL-6 were suppressed by HdHMW. The active component in the HdHMW extract was minimally sensitive to boiling and trypsin digestion, whereas the use of sodium metaperiodate, as a general deglycosylation strategy, indicated that the immunosuppressive effect of HdHMW was at least partially dependent on a glycan: treating the HdHMW with neuraminidase and alpha-mannosidase failed to inhibit its blockade of LPS-induced TNF-alpha production by THP-1 macrophages. Mice treated with DNBS developed colitis, as typified by wasting, shortening of the colon, macroscopic and microscopic tissue damage, and an inflammatory infiltrate. Mice cotreated with HdHMW (three intraperitoneal injections) displayed significantly less inflammatory disease, and this was accompanied by reduced TNF-alpha production and increased IL-10 and IL-4 production by mitogen-stimulated spleen cells. However, cotreatment of mice with neutralizing anti-IL-10 antibodies had only a minor impact on the anticolitic effect of the HdHMW. We speculate that purification of the immunosuppressive factor(s) from H. diminuta has the potential to lead to the development of novel immunomodulatory drugs to treat inflammatory disease.

Indexed as

Macrophage ActivationAnimalsCell ExtractsCell LineColitisColonHumansHymenolepis diminutaImmunosuppressive AgentsMacrophagesMaleMiceMice, Inbred BALB CMolecular WeightCell ExtractsImmunosuppressive Agents

Identifiers

PMID20028812
PMCPMC2825920
OpenAlexW2162641825

What OpenQuestion holds

Textmetadata
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.