Evidence map›Paper›PMID 21179504›Full record

ArticlePLoS neglected tropical diseases2010

Responses of human endothelial cells to pathogenic and non-pathogenic Leptospira species.

Denise G Martinez-Lopez, Mark Fahey, Jenifer Coburn

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
1.7field-weighted citation impact, top 19% 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

33 citing papers in PubMed, 54 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Host Cell Binding Mediated byInternational journal of molecular sciences · 2022
    Article
  12. Article
  13. Article
  14. Article
  15. Characterization of ACE Inhibitors and ATLife (Basel, Switzerland) · 2021
    Article
  16. Article
  17. A Review on Host-Frontiers in cellular and infection microbiology · 2021
    Review
  18. Characterization of a Novel Peptide from PathogenicPathogens (Basel, Switzerland) · 2020
    Article
  19. Leptospirosis: a neglected tropical zoonotic infection of public health importance-an updated review.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2020
    Review
  20. 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.

Denise G Martinez-LopezTufts University School of Medicine, Boston, Massachusetts, USA.
Mark Fahey
Jenifer Coburn
Medical College of Wisconsin · US

Funding

Tufts Post-Baccalaureate Research Education ProgramR25GM066567 · NIGMS · TUFTS UNIVERSITY BOSTON · PI RIOS, MARIBEL · 2002 to 2024
$5.7M
Molecular Analysis fo Borrelia P66-Integrin BindingR01AI059505 · NIAID · TUFTS MEDICAL CENTER · PI COBURN, JENIFER L · 2005 to 2009
$1.6M
Borrelia-Integrin InteractionsR01AI051407 · NIAID · TUFTS MEDICAL CENTER · PI COBURN, JENIFER L · 2003 to 2007
$1.5M
Adhesion of Leptospira interrogans to Human Cell Surface ReceptorsR21AI077560 · NIAID · MEDICAL COLLEGE OF WISCONSIN · PI COBURN, JENIFER L · 2008 to 2009
$379k
NIAID NIH HHS R01 AI051407NIAID NIH HHS R01 AI059505NIAID NIH HHS R21 AI077560NIGMS NIH HHS R25 GM066567NIGMS NIH HHS R25 GM66567
6 · The paper itself

Abstract

Leptospirosis is a widespread zoonotic infection that primarily affects residents of tropical regions, but causes infections in animals and humans in temperate regions as well. The agents of leptospirosis comprise several members of the genus Leptospira, which also includes non-pathogenic, saprophytic species. Leptospirosis can vary in severity from a mild, non-specific illness to severe disease that includes multi-organ failure and widespread endothelial damage and hemorrhage. To begin to investigate how pathogenic leptospires affect endothelial cells, we compared the responses of two endothelial cell lines to infection by pathogenic versus non-pathogenic leptospires. Microarray analyses suggested that pathogenic L. interrogans and non-pathogenic L. biflexa triggered changes in expression of genes whose products are involved in cellular architecture and interactions with the matrix, but that the changes were in opposite directions, with infection by L. biflexa primarily predicted to increase or maintain cell layer integrity, while L. interrogans lead primarily to changes predicted to disrupt cell layer integrity. Neither bacterial strain caused necrosis or apoptosis of the cells even after prolonged incubation. The pathogenic L. interrogans, however, did result in significant disruption of endothelial cell layers as assessed by microscopy and the ability of the bacteria to cross the cell layers. This disruption of endothelial layer integrity was abrogated by addition of the endothelial protective drug lisinopril at physiologically relevant concentrations. These results suggest that, through adhesion of L. interrogans to endothelial cells, the bacteria may disrupt endothelial barrier function, promoting dissemination of the bacteria and contributing to severe disease manifestations. In addition, supplementing antibiotic therapy with lisinopril or derivatives with endothelial protective activities may decrease the severity of leptospirosis.

Indexed as

Gene Expression ProfilingHost-Pathogen InteractionsBacterial AdhesionBacterial TranslocationEndothelial CellsHumansLeptospiraLisinoprilMicroarray AnalysisLisinopril

Identifiers

PMID21179504
PMCPMC3001904
OpenAlexW2036482161

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.