Evidence map›Paper›PMID 17630318›Full record

ArticleAmerican journal of respiratory cell and molecular biology2007

Diesel-enriched particulate matter functionally activates human dendritic cells.

Michael Porter, Matthew Karp, Smruti Killedar, Stephen M Bauer, Jia Guo, D'Ann Williams, Patrick Breysse, Steve N Georas, Marc A Williams

Abstract read
In one paragraph

Article in American journal of respiratory cell and molecular biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
7.7field-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

49 citing papers in PubMed, 115 citations in OpenAlex.

  1. Trial
  2. Review
  3. Review
  4. Sub-Toxic Exposure to DEPs and PMJournal of xenobiotics · 2025
    Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Air pollutants and early origins of respiratory diseases.Chronic diseases and translational medicine · 2018
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  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

9 authors at 2 institutions in 1 country.

Michael PorterDivision of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
Matthew Karp
Smruti Killedar
Stephen M Bauer
Jia Guo
D'Ann Williams
Patrick Breysse
Steve N Georas
Marc A Williams
Pulmonary and Critical Care Associates · USJohns Hopkins University · US

Funding

PILOT STUDY--ACID FOG, AN EXPERIMENTAL MODELP30ES003819 · NIEHS · JOHNS HOPKINS UNIVERSITY · PI GROOPMAN, JOHN D · 1985 to 2012
$22.6M
Trial of Behavioral Changes in Home Exposure ControlP01ES009606 · NIEHS · JOHNS HOPKINS UNIVERSITY · PI EGGLESTON, PEYTON A · 1999 to 2008
$6.8M
LPA and Edg Receptors in the Pulmonary Immune ResposeR01HL071933 · NHLBI · UNIVERSITY OF ROCHESTER · PI GEORAS, STEVE N · 2004 to 2013
$3.1M
Yin-Yang-1:a novel transcription factor in Th responsesR01HL073952 · NHLBI · UNIVERSITY OF ROCHESTER · PI GEORAS, STEVE NICHOLAS · 2003 to 2006
$1.6M
NHLBI NIH HHS HL071933NHLBI NIH HHS R01 HL073952NIEHS NIH HHS 2P01ES09606NIEHS NIH HHS P30 ES03819
6 · The paper itself

Abstract

Epidemiologic studies have associated exposure to airborne particulate matter (PM) with exacerbations of asthma. It is unknown how different sources of PM affect innate immunity. We sought to determine how car- and diesel exhaust-derived PM affects dendritic cell (DC) activation. DC development was modeled using CD34+ hematopoietic progenitors. Airborne PM was collected from exhaust plenums of Fort McHenry Tunnel providing car-enriched particles (CEP) and diesel-enriched particles (DEP). DC were stimulated for 48 hours with CEP, DEP, CD40-ligand, or lipopolysaccharide. DC activation was assessed by flow cytometry, enzyme-linked immunosorbent assay, and standard culture techniques. DEP increased uptake of fluorescein isothiocyanate-dextran (a model antigen) by DC. Diesel particles enhanced cell-surface expression of co-stimulatory molecules (e.g., CD40 [P < 0.01] and MHC class II [P < 0.01]). By contrast, CEP poorly affected antigen uptake and expression of cell surface molecules, and did not greatly affect cytokine secretion by DC. However, DEP increased production of TNF, IL-6, and IFN-gamma (P < 0.01), IL-12 (P < 0.05), and vascular endothelial growth factor (P < 0.001). In co-stimulation assays of PM-exposed DC and alloreactive CD4+ T cells, both CEP and DEP directed a Th2-like pattern of cytokine production (e.g., enhanced IL-13 and IL-18 and suppressed IFN-gamma production). CD4+ T cells were not functionally activated on exposure to either DEP or CEP. Car- and diesel-enriched particles exert a differential effect on DC activation. Our data support the hypothesis that DEP (and to a lesser extent CEP) regulate important functional aspects of human DC, supporting an adjuvant role for this material.

Indexed as

Vehicle EmissionsAntigens, CDCD4-Positive T-LymphocytesCD83 AntigenCytokinesDendritic CellsDown-RegulationEndocytosisFlow CytometryHLA-DR AntigensHumansImmunoglobulinsInflammation MediatorsLectins, C-TypeMacrophagesMannose-Binding LectinsAntigens, CDCD83 AntigenCytokinesHLA-DR AntigensImmunoglobulinsInflammation MediatorsLectins, C-TypeMannose-Binding LectinsMannose ReceptorMembrane GlycoproteinsParticulate MatterReceptors, Cell SurfaceReceptors, ChemokineToll-Like Receptor 2Toll-Like Receptor 4Vehicle Emissions

Identifiers

PMID17630318
PMCPMC2219549
OpenAlexW2046512238

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.