Evidence map›Paper›PMID 20199607›Full record

ArticleMolecular microbiology2010

Mycoplasma pneumoniae Community Acquired Respiratory Distress Syndrome toxin expression reveals growth phase and infection-dependent regulation.

T R Kannan, Oxana Musatovova, Sowmya Balasubramanian, Marianna Cagle, Jarrat L Jordan, Thomas M Krunkosky, Alan Davis, Robert D Hardy, Joel B Baseman

Open access · bronzeAbstract read
In one paragraph

Article in Molecular microbiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
2.7field-weighted citation impact, top 11% 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

43 citing papers in PubMed, 60 citations in OpenAlex.

  1. Trial
  2. Review
  3. Review
  4. Article
  5. Article
  6. Review
  7. Microorganisms · 2025
    Review
  8. The Immune Modulatory Role of Surfactants inJournal of inflammation research · 2025
    Review
  9. Advances in adhesion-related pathogenesis inFrontiers in microbiology · 2025
    Review
  10. Journal of medical microbiology · 2024
    Review
  11. Article
  12. Article
  13. Review
  14. Evaluation of the CARDS toxin and its fragment for the serodiagnosis of Mycoplasma pneumoniae infections.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2021
    Article
  15. Article
  16. Review
  17. Frontiers in immunology · 2021
    Article
  18. Article
  19. Article
  20. mBio · 2018
    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 4 institutions in 1 country.

T R KannanDepartment of Microbiology and Immunology, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA.
Oxana Musatovova
Sowmya Balasubramanian
Marianna Cagle
Jarrat L Jordan
Thomas M Krunkosky
Alan Davis
Robert D Hardy
Joel B Baseman
The University of Texas Health Science Center at San Antonio · USMaine Medical Center · USThe University of Texas Southwestern Medical Center · USUniversity of Georgia · US

Funding

The role of CARDS toxin in genesis and exacerbation of allergic inflammationU19AI070412 · NIAID · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI BASEMAN, JOEL BARRY · 2006 to 2015
$19.7M
NIAID NIH HHS AI070412NIAID NIH HHS U19 AI070412
6 · The paper itself

Abstract

Mycoplasma pneumoniae causes acute and chronic respiratory infections, including tracheobronchitis and community acquired pneumonia, and is linked to asthma and an array of extra-pulmonary disorders. Recently, we identified an ADP-ribosylating and vacuolating toxin of M. pneumoniae, designated Community Acquired Respiratory Distress Syndrome (CARDS) toxin. In this study we analysed CARDS toxin gene (annotated mpn372) transcription and identified its promoter. We also compared CARDS toxin mRNA and protein profiles in M. pneumoniae during distinct in vitro growth phases. CARDS toxin mRNA expression was maximal, but at low levels, during early exponential growth and declined sharply during mid-to-late log growth phases, which was in direct contrast to other mycoplasma genes examined. Between 7% and 10% of CARDS toxin was localized to the mycoplasma membrane at mid-exponential growth, which was reinforced by immunogold electron microscopy. No CARDS toxin was released into the medium. Upon M. pneumoniae infection of mammalian cells, increased expression of CARDS toxin mRNA was observed when compared with SP-4 broth-grown cultures. Further, confocal immunofluorescence microscopy revealed that M. pneumoniae readily expressed CARDS toxin during infection of differentiated normal human bronchial epithelial cells. Analysis of M. pneumoniae-infected mouse lung tissue revealed high expression of CARDS toxin per mycoplasma cell when compared with M. pneumoniae cells grown in SP-4 medium alone. Taken together, these studies indicate that CARDS toxin expression is carefully controlled by environmental cues that influence its transcription and translation. Further, the acceleration of CARDS toxin synthesis and accumulation in vivo is consistent with its role as a bona fide virulence determinant.

Indexed as

Gene Expression Regulation, BacterialAnimalsBacterial ProteinsBacterial ToxinsBase SequenceCell LineFemaleHumansLungLung DiseasesMiceMice, Inbred BALB CMycoplasma pneumoniaePneumonia, MycoplasmaRespiratory Distress SyndromeRNA, MessengerBacterial ProteinsBacterial ToxinsCARDS toxin, Mycoplasma pneumoniaeRNA, Messenger

Identifiers

PMID20199607
PMCPMC2883071
OpenAlexW2167091985

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.