Evidence map›Paper›PMID 21444669›Full record

ArticleInfection and immunity2011

Duodenal helminth infection alters barrier function of the colonic epithelium via adaptive immune activation.

Chien-wen Su, Yue Cao, Jess Kaplan, Mei Zhang, Wanglin Li, Michelle Conroy, W Allan Walker, Hai Ning Shi

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 18% 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

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

  1. Pooled it
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  4. Acquired immunity mechanisms in sheep infected withFrontiers in veterinary science · 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 2 institutions in 1 country.

Chien-wen SuMucosal Immunology Laboratory, Massachusetts General Hospital, Building 114, 16th Street, Room 3504, Charlestown, MA 02129, USA.
Yue Cao
Jess Kaplan
Mei Zhang
Wanglin Li
Michelle Conroy
W Allan Walker
Hai Ning Shi
Massachusetts General Hospital · USHarvard University · US

Funding

Pilot & Feasibility ProgramP30DK043351 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI RAYMOND T CHUNG · 1991 to 2026
$35.3M
ROLE OF DIETARY CONSTITUENTS ON GENE EXPRESSION IN INTESTINAL EPITHELIUMP30DK040561 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI CHRISTOPHER P DUGGAN · 1994 to 2026
$31.6M
Immunomodulatory effects of intestinal helminthes on mucosal immunityR01DK082427 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI SHI, HAI NING · 2010 to 2014
$1.9M
Immunomodulation of bacteria-associated colitis by helminth infectionR21DK074727 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI SHI, HAI NING · 2007 to 2008
$472k
NIDDK NIH HHS P30 DK040561NIDDK NIH HHS P30DK040561NIDDK NIH HHS P30 DK043351NIDDK NIH HHS R01 DK082427NIDDK NIH HHS R01DK082427NIDDK NIH HHS R21 DK074727NIDDK NIH HHS R21DK074727
6 · The paper itself

Abstract

Chronic infection with intestinal helminth parasites is a major public health problem, particularly in the developing world, and can have significant effects on host physiology and the immune response to other enteric infections and antigens. The mechanisms underlying these effects are not well understood. In the current study, we investigated the impact of infection with the murine nematode parasite Heligmosomoides polygyrus, which resides in the duodenum, on epithelial barrier function in the colon. We found that H. polygyrus infection produced a significant increase in colonic epithelial permeability, as evidenced by detection of elevated serum levels of the tracer horseradish peroxidase following rectal administration. This loss of normal barrier function was associated with clear ultrastructural changes in the tight junctions of colonic epithelial cells and an alteration in the expression and distribution of the junctional protein E-cadherin. These parasite-induced abnormalities were not observed in SCID mice but did occur in SCID mice that were adoptively transferred with wild-type T cells, indicating a requirement for adaptive immunity. Furthermore, the helminth-induced increase in gut permeability was not seen in STAT6 knockout (KO) mice. Taken together, the results demonstrate that one of the mechanisms by which helminths exert their effects involves the lymphocyte- and STAT6-dependent breakdown of the intestinal epithelial barrier. This increase in epithelial permeability may facilitate the movement of lumenal contents across the mucosa, thus helping to explain how helminth infection can alter the immune response to enteric antigens.

Indexed as

Adaptive ImmunityAnimalsBlotting, WesternColonFemaleIntestinal MucosaLymphocyte ActivationLymphocytesMiceMice, Inbred BALB CMice, KnockoutMicroscopy, Electron, TransmissionMicroscopy, FluorescenceNematospiroides dubiusStrongylida Infections

Identifiers

PMID21444669
PMCPMC3125859
OpenAlexW2161440264

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.