Evidence map›Paper›PMID 32943639›Full record

ArticleNature communications2020

Extracellular bacterial lymphatic metastasis drives Streptococcus pyogenes systemic infection.

Matthew K Siggins, Nicola N Lynskey, Lucy E Lamb, Louise A Johnson, Kristin K Huse, Max Pearson, Suneale Banerji, Claire E Turner, Kevin Woollard, David G Jackson and 1 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 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
4.9field-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

29 citing papers in PubMed, 54 citations in OpenAlex.

  1. Article
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  9. From defense to disease: the multifaceted role of lymphatics during infection.Journal of immunology (Baltimore, Md. : 1950) · 2025
    Review
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  19. Article
  20. Genetic heterogeneity of colorectal cancer and the microbiome.World journal of gastrointestinal oncology · 2023
    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

11 authors at 3 institutions in 1 country.

Matthew K SigginsDepartment of Infectious Disease, Imperial College London, London, W12 0NN, UK. m.siggins@imperial.ac.uk.ORCID http://orcid.org/0000-0003-2504-6518
Nicola N LynskeyDepartment of Infectious Disease, Imperial College London, London, W12 0NN, UK.
Lucy E LambDepartment of Infectious Disease, Imperial College London, London, W12 0NN, UK.
Louise A JohnsonMRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK.
Kristin K HuseDepartment of Infectious Disease, Imperial College London, London, W12 0NN, UK.
Max PearsonDepartment of Infectious Disease, Imperial College London, London, W12 0NN, UK.ORCID http://orcid.org/0000-0001-5937-4152
Suneale BanerjiMRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK.
Claire E TurnerDepartment of Infectious Disease, Imperial College London, London, W12 0NN, UK.
Kevin WoollardCentre for Inflammatory Disease, Department of Immunology & Inflammation, Imperial College London, London, W12 0NN, UK.ORCID http://orcid.org/0000-0002-9839-5463
David G JacksonMRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK.ORCID http://orcid.org/0000-0002-4133-9364
Shiranee SriskandanDepartment of Infectious Disease, Imperial College London, London, W12 0NN, UK. s.sriskandan@imperial.ac.uk.ORCID http://orcid.org/0000-0002-5214-4941
Imperial College London · GBUniversity of Oxford · GBRoslin Institute · GB

Funding

Department of HealthMedical Research Council MC_UU_00008/2Medical Research Council MR/L008610/1Wellcome TrustWellcome Trust 103197/Z/13/Z
6 · The paper itself

Abstract

Unassisted metastasis through the lymphatic system is a mechanism of dissemination thus far ascribed only to cancer cells. Here, we report that Streptococcus pyogenes also hijack lymphatic vessels to escape a local infection site, transiting through sequential lymph nodes and efferent lymphatic vessels to enter the bloodstream. Contrasting with previously reported mechanisms of intracellular pathogen carriage by phagocytes, we show S. pyogenes remain extracellular during transit, first in afferent and then efferent lymphatics that carry the bacteria through successive draining lymph nodes. We identify streptococcal virulence mechanisms important for bacterial lymphatic dissemination and show that metastatic streptococci within infected lymph nodes resist and subvert clearance by phagocytes, enabling replication that can seed intense bloodstream infection. The findings establish the lymphatic system as both a survival niche and conduit to the bloodstream for S. pyogenes, explaining the phenomenon of occult bacteraemia. This work provides new perspectives in streptococcal pathogenesis with implications for immunity.

Indexed as

Lymphatic MetastasisAnimalsBacteremiaDisease Models, AnimalFemaleInterleukin-8Lymphatic SystemLymphatic VesselsLymph NodesMiceMice, Inbred BALB CMice, Inbred C57BLNeutrophilsPhagocytosisStreptococcal InfectionsStreptococcus pyogenesInterleukin-8

Identifiers

PMID32943639
PMCPMC7498588
OpenAlexW3087135021

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.