Evidence map›Paper›PMID 19050257›Full record

ArticleJournal of immunology (Baltimore, Md. : 1950)2008

Acute pulmonary lipopolysaccharide tolerance decreases TNF-alpha without reducing neutrophil recruitment.

Sudha Natarajan, Jiyoun Kim, Daniel G Remick

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Journal of immunology (Baltimore, Md. : 1950), 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

18 citing papers in PubMed, 32 citations in OpenAlex.

  1. Disease tolerance: a protective mechanism of lung infections.Frontiers in cellular and infection microbiology · 2023
    Review
  2. Article
  3. JAK3 restrains inflammatory responses and protects against periodontal disease through Wnt3a signaling.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2020
    Article
  4. S100A8/A9 and S100A9 reduce acute lung injury.Immunology and cell biology · 2017
    Article
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  16. A rat model of exercise-induced asthma: a nonspecific response to a specific immunogen.American journal of physiology. Regulatory, integrative and comparative physiology · 2011
    Article
  17. Endotoxin, coliform, and dust levels in various types of rodent bedding.Journal of the American Association for Laboratory Animal Science : JAALAS · 2010
    Article
  18. 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

3 authors at 1 institution in 1 country.

Sudha NatarajanDepartment of Pathology and Laboratory Medicine, Boston University School of Medicine, Boston, MA 02118, USA.
Jiyoun Kim
Daniel G Remick
Boston University · US

Funding

The Function of Neural Activity in Developing RetinaR01EY013528 · NEI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Marla Feller · 2002 to 2026
$8.1M
Endotoxin, allergens and pollutants in asthmaR01ES013538 · NIEHS · BOSTON UNIVERSITY MEDICAL CAMPUS · PI REMICK, DANIEL G. · 2006 to 2010
$1.7M
NEI NIH HHS R01 EY013528NIEHS NIH HHS R01 ES013528NIEHS NIH HHS R01 ES013538
6 · The paper itself

Abstract

Pulmonary LPS exposure plays a key role in exacerbation of lung diseases such as chronic obstructive pulmonary disease and asthma. However, little is known about the effects of repeated LPS exposure in the lung microenvironment. We have developed a novel murine model of pulmonary LPS tolerance induced by intratracheal (i.t.) administration of LPS. First, we show that pulmonary LPS exposure does not induce whole-body refractoriness to systemic LPS, because i.t. administration followed by i.p. administration did not decrease plasma TNF-alpha. However, a local refractory state can be induced with two i.t. LPS exposures. Pulmonary LPS tolerance was induced by i.t. administration of 100 ng LPS at time 0 and 48 h. Nontolerant mice received PBS at time 0 and LPS at 48 h. Bronchoalveolar lavage levels of TNF-alpha were significantly attenuated in tolerant mice vs nontolerant mice (1597 pg/ml vs 7261 pg/ml). TNF-alpha mRNA was significantly reduced in bronchoalveolar lavage cells (5-fold) and lung tissue (10-fold). No reduction was seen in neutrophil numbers in the bronchoalveolar lavage fluid, myeloperoxidase activity, or expression of neutrophil chemoattractants CXCL1 and CXCL2, reflecting the specificity of the response. The reduction in TNF-alpha was accompanied by a significant increase in soluble receptors, TNF-SRI (159 pg/ml vs 206 pg/ml) and TNF-SRII (1366 pg/m vs 2695 pg/ml). In conclusion, pulmonary LPS tolerance results in a specific reduction in TNF-alpha expression, while the neutrophilic response is unaffected. This response may be a mechanism to limit tissue damage by reducing TNF-alpha levels, while still maintaining the antimicrobial capacity of the lung.

Indexed as

Acute Lung InjuryAnimalsCytokinesDisease Models, AnimalDown-RegulationFemaleImmune ToleranceImmunosuppressive AgentsIntubation, IntratrachealLipopolysaccharidesLungMiceMice, Inbred BALB CNeutrophil InfiltrationTumor Necrosis Factor-alphaCytokinesImmunosuppressive AgentsLipopolysaccharidesTumor Necrosis Factor-alpha

Identifiers

PMID19050257
PMCPMC3672419
OpenAlexW1610093422

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.