Evidence map›Paper›PMID 17210665›Full record

ArticleInfection and immunity2007

Interleukin-12 promotes gamma interferon-dependent neutrophil recruitment in the lung and improves protection against respiratory Streptococcus pneumoniae infection.

Keer Sun, Sharon L Salmon, Steven A Lotz, Dennis W Metzger

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

75 citing papers in PubMed, 139 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Review
  5. Lung CD4Cell reports · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. ImmunobioticInternational journal of molecular sciences · 2023
    Article
  12. Local and Systemic Effects ofMicroorganisms · 2023
    Review
  13. Article
  14. Neutrophil Recruitment in Pneumococcal Pneumonia.Frontiers in cellular and infection microbiology · 2022
    Review
  15. Contribution of Puma to Inflammatory Resolution During Early Pneumococcal Pneumonia.Frontiers in cellular and infection microbiology · 2022
    Article
  16. Article
  17. IL-10-producing NK cells exacerbate sublethal Streptococcus pneumoniae infection in the lung.Translational research : the journal of laboratory and clinical medicine · 2020
    Article
  18. Article
  19. Article
  20. Review

15 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

4 authors at 1 institution in 1 country.

Keer SunCenter for Immunology and Microbial Disease, MC-151, Albany Medical College, 47 New Scotland Avenue, Albany, NY 12208, USA.
Sharon L Salmon
Steven A Lotz
Dennis W Metzger
Albany Medical Center Hospital · US

Funding

REGULATION OF B CELL FUNCTION BY INTERLEUKIN 12R01AI041715 · NIAID · UNIVERSITY OF TOLEDO HEALTH SCI CAMPUS · PI METZGER, DENNIS W · 1998 to 2011
$4.0M
NIAID NIH HHS R01 AI041715NIAID NIH HHS R01 AI 41715
6 · The paper itself

Abstract

The ability of exogenous interleukin-12 (IL-12) to elicit protective innate immune responses against the extracellular pathogen Streptococcus pneumoniae was tested by infecting BALB/c mice intranasally (i.n.) with S. pneumoniae after i.n. administration of IL-12. It was found that administration of IL-12 resulted in lower bacterial burdens in the infected mice and significantly improved survival rates. All IL-12-treated mice contained higher levels of pulmonary gamma interferon (IFN-gamma) after infection and significantly more neutrophils than infected mice not treated with IL-12. IFN-gamma was found to be essential for IL-12-induced resistance and for neutrophil influx into the lungs, and the observed changes correlated with increased levels of the IL-8 homologue keratinocyte-derived chemokine (KC). In addition, in vitro tumor necrosis factor alpha (TNF-alpha) production by alveolar macrophages stimulated with heat-killed pneumococci was enhanced by IFN-gamma, and TNF-alpha in turn could enhance production of KC by lung cells. Finally, IL-12-induced protection was dependent upon the presence of neutrophils and the KC receptor CXCR2. Taken together, the results indicate that exogenous IL-12 can improve innate defense in the lung against S. pneumoniae by inducing IFN-gamma production, which in turn enhances chemokine expression, and promotes pulmonary neutrophil recruitment into the infected lung. The findings show that IL-12 and IFN-gamma can mediate a protective effect against respiratory infection caused by extracellular bacterial pathogens.

Indexed as

AnimalsInterferon-gammaInterleukin-12LungMiceMice, Inbred BALB CMice, KnockoutNeutrophil InfiltrationNeutrophilsPneumonia, PneumococcalStreptococcus pneumoniaeInterferon-gammaInterleukin-12

Identifiers

PMID17210665
PMCPMC1828591
OpenAlexW2124230323

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.