Evidence map›Paper›PMID 20962772›Full record

ReviewMucosal immunology2011

Intestinal macrophages and response to microbial encroachment.

P D Smith, L E Smythies, R Shen, T Greenwell-Wild, M Gliozzi, S M Wahl

Open access · bronzeAbstract readReview
In one paragraph

Review in Mucosal immunology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 206 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
206citing papers in PubMed, 2 pooled it
7.9field-weighted citation impact, top 2% 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

206 citing papers in PubMed, 2 syntheses or guidelines pooled it, 371 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Gut microbes · 2026
    Article
  4. Review
  5. Phenotypic switching of gastrointestinal smooth muscle cells and the regulatory role of macrophages: a literature review.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
    Review
  6. Review
  7. Article
  8. Article
  9. Macrophages on demand: How tissue trauma shapes their role.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2026
    Review
  10. Review
  11. Review
  12. Observational
  13. Review
  14. Article
  15. Article
  16. Article
  17. Intestinal barrier function declines during polycystic kidney disease progression.American journal of physiology. Renal physiology · 2025
    Article
  18. Article
  19. Extracellular vesicles shed by macrophages co-cultured withBioscience of microbiota, food and health · 2025
    Article
  20. Review

146 more citing papers are in PubMed but not listed here.

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

6 authors at 3 institutions in 1 country.

P D SmithDepartment of Medicine (Gastroenterology), University of Alabama at Birmingham, Birmingham, Alabama, USA. pdsmith@uab.edu
L E Smythies
R Shen
T Greenwell-Wild
M Gliozzi
S M Wahl
University of Alabama at Birmingham · USNational Institutes of Health · USNational Institute of Dental and Craniofacial Research · US

Funding

Normal And Pathologic Mechanisms Of Inflammation, Innate And Acquired ImmunityZIADE000046 · NIDCR · NATIONAL INSTITUTE OF DENTAL & CRANIOFACIAL RESEARCH · PI WAHL, SHARON M · 2009 to 2012
$5.4M
Mucosal HIV and Immunobiology CenterR24DK064400 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI SMITH, PHILLIP D · 2003 to 2012
$4.8M
Immunologic Uniqueness of the Female Genital Tract in HIV PathogenesisP01AI083027 · NIAID · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI MESTECKY, JIRI F · 2009 to 2010
$4.0M
EXTRAMURAL RESEARCH FACILITIES IMPROVEMENT: PHYSIOLOGYC06RR020136 · NCRR · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI MARCHASE, RICHARD BANFIELD · 2004 to 2004
$3.6M
Role Of Monocytes In AIDS And As Targets For Antiviral TherapyZIADE000513 · NIDCR · NATIONAL INSTITUTE OF DENTAL & CRANIOFACIAL RESEARCH · PI WAHL, SHARON M · 2009 to 2012
$2.9M
IMMUNOBIOLOGY AND PREVENTION OF H PYLORI DISEASER01DK054495 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI SMITH, PHILLIP D · 1998 to 2009
$2.4M
Dysregulation of IgA responses in HIV-1-infected individualsR01AI074438 · NIAID · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI HEL, ZDENEK · 2007 to 2011
$2.4M
IMMUNOBIOLOGY OF HIV1 INFECTION IN MUCOSAR01DK047322 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI SMITH, PHILLIP D · 1994 to 2007
$2.1M
Mechanisms of apoptotic cell clearance in the human stomachR01DK084063 · NIDDK · UNIVERSITY OF VIRGINIA · PI ERNST, PETER B. · 2010 to 2013
$1.7M
Mucosal TGF-Beta/IL-6 Axis in the Regulation of T Cell FunctionR21AI083539 · NIAID · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI SMYTHIES, LESLEY E · 2009 to 2010
$403k
Gastrointestinal Cytomegalovirus Disease: Host and Viral DeterminantsI01CX000372 · VA · BIRMINGHAM VA MEDICAL CENTER · PI SMITH, PHILLIP D · 2011 to 2014
–
CSRD VA I01 CX000372Intramural NIH HHSNCRR NIH HHS C06 RR020136NCRR NIH HHS RR-20136NIAID NIH HHS AI-74438NIAID NIH HHS AI-83027NIAID NIH HHS AI-83539NIAID NIH HHS P01 AI083027NIAID NIH HHS R01 AI074438NIAID NIH HHS R21 AI083539NIDDK NIH HHS DK-47322NIDDK NIH HHS DK-54495NIDDK NIH HHS DK-64400NIDDK NIH HHS DK-84063NIDDK NIH HHS R01 DK047322NIDDK NIH HHS R01 DK054495NIDDK NIH HHS R01 DK084063NIDDK NIH HHS R24 DK064400
6 · The paper itself

Abstract

Macrophages in the gastrointestinal mucosa represent the largest pool of tissue macrophages in the body. In order to maintain mucosal homeostasis, resident intestinal macrophages uniquely do not express the lipopolysaccharide (LPS) co-receptor CD14 or the IgA (CD89) and IgG (CD16, 32, and 64) receptors, yet prominently display Toll-like receptors (TLRs) 3-9. Remarkably, intestinal macrophages also do not produce proinflammatory cytokines in response to TLR ligands, likely because of extracellular matrix (stromal) transforming growth factor-β (TGF-β) dysregulation of nuclear factor (NF)-κB signal proteins and, via Smad signaling, expression of IκBα, thereby inhibiting NF-κB-mediated activities. Thus, in noninflamed mucosa, resident macrophages are inflammation anergic but retain avid scavenger and host defense function, an ideal profile for macrophages in close proximity to gut microbiota. In the event of impaired epithelial integrity during intestinal infection or inflammation, however, blood monocytes also accumulate in the lamina propria and actively pursue invading microorganisms through uptake and degradation of the organism and release of inflammatory mediators. Consequently, resident intestinal macrophages are inflammation adverse, but when the need arises, they receive assistance from newly recruited circulating monocytes.

Indexed as

AnimalsAntigens, CDCytokinesHumansInflammationIntestinal MucosaIntestinesLipopolysaccharide ReceptorsMacrophagesMonocytesNF-kappa BReceptors, FcReceptors, IgGSignal TransductionSmad ProteinsToll-Like ReceptorsAntigens, CDCytokinesFc(alpha) receptorLipopolysaccharide ReceptorsNF-kappa BReceptors, FcReceptors, IgGSmad ProteinsToll-Like ReceptorsTransforming Growth Factors

Identifiers

PMID20962772
PMCPMC3821935
OpenAlexW2019279852

What OpenQuestion holds

Textmetadata
LicenceTDM
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.