Evidence map›Paper›PMID 12496185›Full record

ArticleInfection and immunity2003

Differential expression of gamma interferon mRNA induced by attenuated and virulent Mycobacterium tuberculosis in guinea pig cells after Mycobacterium bovis BCG vaccination.

Amminikutty Jeevan, Teizo Yoshimura, Kyeong Eun Lee, David N McMurray

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.4field-weighted citation impact, top 21% 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

20 citing papers in PubMed, 33 citations in OpenAlex.

  1. Review
  2. Model systems to studyFrontiers in cellular and infection microbiology · 2025
    Review
  3. Review
  4. Review
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  7. Article
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  11. Article
  12. Article
  13. Using guinea pigs in studies relevant to asthma and COPD.Pulmonary pharmacology & therapeutics · 2008
    Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
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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

4 authors at 3 institutions in 1 country.

Amminikutty JeevanDepartment of Medical Microbiology and Immunology, Texas A&M University System Health Science Center, College Station, Texas 77843, USA. ajeevan@medicine.tamu.edu
Teizo Yoshimura
Kyeong Eun Lee
David N McMurray
Texas A&M University System · USNational Cancer Institute · USTexas A&M University · US

Funding

PROTEIN AND ZINC DEFICIENCY AND VACCINE EFFICACYR01AI015495 · NIAID · TEXAS A&M UNIVERSITY HEALTH SCIENCE CTR · PI MCMURRAY, DAVID N. · 1987 to 2009
$2.9M
Molecular mechanisms regulating the transition from innaZ01BC010258 · BC · BASIC SCIENCES · PI YOSHIMURA, TEIZO · 1997 to 2005
–
NIAID NIH HHS R01 AI015495NIAID NIH HHS R01AI 15495
6 · The paper itself

Abstract

To determine whether Mycobacterium bovis BCG vaccination would alter gamma interferon (IFN-gamma) mRNA expression in guinea pig cells exposed to Mycobacterium tuberculosis, we cloned a cDNA encoding guinea pig IFN-gamma from a spleen cell cDNA library. The cDNA is composed of 1,110 bp, with an open reading frame encoding a 166-amino-acid protein which shows 56 and 41% amino acid sequence homology to human and mouse IFN-gamma, respectively. Spleen or lymph node cells from naïve and BCG-vaccinated guinea pigs were stimulated with purified protein derivative (PPD) or M. tuberculosis H37Ra or H37Rv, and the total RNA was subjected to Northern blot analysis with a (32)P-labeled probe derived from the cDNA clone. Compared to the IFN-gamma mRNA expression in cells of naïve animals, that in spleen and lymph node cells exposed to various stimuli was enhanced after BCG vaccination. However, there was a significant reduction in IFN-gamma mRNA levels when cells were stimulated with a multiplicity of infection of greater than 1 virulent M. tuberculosis bacterium per 10 cells. The enhanced IFN-gamma mRNA response in BCG-vaccinated animals was associated with an increase in the proportions of CD4(+) T cells in the spleens, as determined by fluorescence-activated cell sorter analysis. Furthermore, the nonadherent population in the spleens enriched either by panning with anti-guinea pig immunoglobulin G-coated plates or by purification on nylon wool columns produced more IFN-gamma mRNA than whole spleen cells following stimulation with concanavalin A or PPD. This indicates that T cells are principally responsible for the upregulation of IFN-gamma mRNA expression following BCG vaccination. The mechanism by which virulent mycobacteria suppress IFN-gamma mRNA accumulation is currently under investigation.

Indexed as

Amino Acid SequenceAnimalsBase SequenceBCG VaccineCD4-Positive T-LymphocytesCloning, MolecularDNA, ComplementaryGuinea PigsInterferon-gammaLymph NodesMolecular Sequence DataMycobacterium tuberculosisRNA, MessengerSpleenVaccinationBCG VaccineDNA, ComplementaryInterferon-gammaRNA, Messenger

Identifiers

PMID12496185
PMCPMC143318
OpenAlexW2097168105

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.