Evidence map›Paper›PMID 22952057›Full record

ArticleMolecular medicine (Cambridge, Mass.)2012

Gene expression profiles in alveolar macrophages induced by lipopolysaccharide in humans.

Frederic Reynier, Alex F de Vos, Jacobien J Hoogerwerf, Paul Bresser, Jaring S van der Zee, Malick Paye, Alexandre Pachot, Bruno Mougin, Tom van der Poll

Open access · goldAbstract read
In one paragraph

Article in Molecular medicine (Cambridge, Mass.), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 12% 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

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

  1. Gene Expression Analysis to Assess the Relevance of Rodent Models to Human Lung Injury.American journal of respiratory cell and molecular biology · 2017
    Pooled it
  2. Dexamethasone inhibits endotoxin-induced coagulopathy in human lungs.Journal of thrombosis and haemostasis : JTH · 2016
    Trial
  3. Mature-StageInternational journal of molecular sciences · 2026
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  11. GCH1 reduces LPS-induced alveolar macrophage polarization and inflammation by inhibition of ferroptosis.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2023
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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

9 authors at 4 institutions in 2 countries.

Frederic ReynierJoint Unit Hospices Civils de Lyon - bioMérieux, Hôpital Edouard Herriot, Lyon, France.
Alex F de Vos
Jacobien J Hoogerwerf
Paul Bresser
Jaring S van der Zee
Malick Paye
Alexandre Pachot
Bruno Mougin
Tom van der Poll
Academic Medical Center · NLHôpital Edouard Herriot · FRUniversity of Amsterdam · NLHospices Civils de Lyon · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lipopolysaccharide (LPS) is ubiquitous in the environment. Inhalation of LPS has been implicated in the pathogenesis and/or severity of several lung diseases, including pneumonia, chronic obstructive pulmonary disease and asthma. Alveolar macrophages are the main resident leukocytes exposed to inhaled antigens. To obtain insight into which innate immune pathways become activated within human alveolar macrophages upon exposure to LPS in vivo, we conducted a study in eight healthy humans, in which we instilled sterile saline into a lung segment by bronchoscope, followed by instillation of LPS into the contralateral lung. Six hours later, a bilateral bronchoalveolar lavage was performed and whole-genome transcriptional profiling was done on purified alveolar macrophages, comparing cells exposed to saline or LPS from the same individuals. LPS induced differential expression of 2,932 genes in alveolar macrophages; 1,520 genes were upregulated, whereas 1,440 genes were downregulated. A total of 26 biological functions were overrepresented in LPS-exposed macrophages; 44 canonical pathways affected by LPS were identified, among which the genes associated with the role of pattern recognition receptors in recognition of bacteria and viruses represented the top pathway. Other pathways included cellular immune response, signaling by tumor necrosis factor (receptor) family members, cytokine signaling and glucocorticoid receptor signaling. These results reveal for the first time a large number of functional pathways influenced by the biologically relevant challenge provided by LPS administered into the airways. These data can assist in identifying novel targets for therapeutic intervention in pulmonary diseases associated with LPS exposure, including pneumonia, asthma and chronic obstructive pulmonary disease.

Indexed as

TranscriptomeCluster AnalysisCytokine TWEAKGene Expression RegulationHumansInflammationLipopolysaccharidesMacrophages, AlveolarMaleNF-kappa BOligonucleotide Array Sequence AnalysisPrincipal Component AnalysisReceptors, Tumor Necrosis Factor, Type IISignal TransductionTumor Necrosis FactorsYoung AdultCytokine TWEAKLipopolysaccharidesNF-kappa BReceptors, Tumor Necrosis Factor, Type IITNFSF12 protein, humanTumor Necrosis Factors

Identifiers

PMID22952057
PMCPMC3521791
OpenAlexW1536048346

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.