Evidence map›Paper›PMID 32312961›Full record

ArticleNature communications2020

Increased pathogenicity of pneumococcal serotype 1 is driven by rapid autolysis and release of pneumolysin.

Laura C Jacques, Stavros Panagiotou, Murielle Baltazar, Madikay Senghore, Shadia Khandaker, Rong Xu, Laura Bricio-Moreno, Marie Yang, Christopher G Dowson, Dean B Everett and 2 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 4% 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

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Investigation of the essential role of capsular polysaccharide in serotype 1Frontiers in cellular and infection microbiology · 2026
    Article
  4. Transcriptomic analysis ofMicrobial genomics · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Non-invasiveEuro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2024
    Article
  14. Article
  15. Blocking HXAmBio · 2024
    Article
  16. Article
  17. Blocking HXAbioRxiv : the preprint server for biology · 2024
    Article
  18. Article
  19. Pore-forming activity ofInfection and immunity · 2023
    Article
  20. Review
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

12 authors at 3 institutions in 3 countries.

Laura C JacquesDepartment of Clinical Infection, Microbiology and Immunology, Institute of Infection and Global Health, University of Liverpool, Liverpool, UK.
Stavros PanagiotouDepartment of Clinical Infection, Microbiology and Immunology, Institute of Infection and Global Health, University of Liverpool, Liverpool, UK.ORCID http://orcid.org/0000-0001-9972-5068
Murielle BaltazarDepartment of Clinical Infection, Microbiology and Immunology, Institute of Infection and Global Health, University of Liverpool, Liverpool, UK.ORCID http://orcid.org/0000-0002-1972-2308
Madikay SenghoreMedical Research Council Unit, The Gambia, Bakau, Gambia.
Shadia KhandakerDepartment of Clinical Infection, Microbiology and Immunology, Institute of Infection and Global Health, University of Liverpool, Liverpool, UK.
Rong XuDepartment of Clinical Infection, Microbiology and Immunology, Institute of Infection and Global Health, University of Liverpool, Liverpool, UK.
Laura Bricio-MorenoDepartment of Clinical Infection, Microbiology and Immunology, Institute of Infection and Global Health, University of Liverpool, Liverpool, UK.
Marie YangDepartment of Clinical Infection, Microbiology and Immunology, Institute of Infection and Global Health, University of Liverpool, Liverpool, UK.
Christopher G DowsonSchool of Life Sciences, University of Warwick, Warwick, UK.ORCID http://orcid.org/0000-0002-8294-8836
Dean B EverettMalawi-Liverpool-Wellcome Trust Clinical Research Programme, University of Malawi, College of Medicine, Blantyre, Malawi.ORCID http://orcid.org/0000-0002-8458-6779
Daniel R NeillDepartment of Clinical Infection, Microbiology and Immunology, Institute of Infection and Global Health, University of Liverpool, Liverpool, UK.ORCID http://orcid.org/0000-0002-7911-8153
Aras KadiogluDepartment of Clinical Infection, Microbiology and Immunology, Institute of Infection and Global Health, University of Liverpool, Liverpool, UK. a.kadioglu@liverpool.ac.uk.ORCID http://orcid.org/0000-0003-1137-6321
University of Liverpool · GBMRC Unit the Gambia · GMUniversity of Warwick · GB

Funding

Medical Research Council MR/N002679/1Medical Research Council MR/P011284/1Wellcome TrustWellcome Trust 204457/Z/16/Z
6 · The paper itself

Abstract

Streptococcus pneumoniae serotype 1 is the predominant cause of invasive pneumococcal disease in sub-Saharan Africa, but the mechanism behind its increased invasiveness is not well understood. Here, we use mouse models of lung infection to identify virulence factors associated with severe bacteraemic pneumonia during serotype-1 (ST217) infection. We use BALB/c mice, which are highly resistant to pneumococcal pneumonia when infected with other serotypes. However, we observe 100% mortality and high levels of bacteraemia within 24 hours when BALB/c mice are intranasally infected with ST217. Serotype 1 produces large quantities of pneumolysin, which is rapidly released due to high levels of bacterial autolysis. This leads to substantial levels of cellular cytotoxicity and breakdown of tight junctions between cells, allowing a route for rapid bacterial dissemination from the respiratory tract into the blood. Thus, our results offer an explanation for the increased invasiveness of serotype 1.

Indexed as

AutolysisA549 CellsAnimalsBacteremiaBacterial ProteinsBacterial ToxinsCell SurvivalDisease Models, AnimalEpithelial CellsFemaleHumansLungMiceMice, Inbred BALB CNasopharynxPneumococcal InfectionsBacterial ProteinsBacterial ToxinsplY protein, Streptococcus pneumoniaeStreptolysinsVirulence Factors

Identifiers

PMID32312961
PMCPMC7170840
OpenAlexW3017338795

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.