Evidence map›Paper›PMID 32483198›Full record

ArticleMucosal immunology2021

Granulocytes act as a niche for Mycobacterium tuberculosis growth.

Rustin R Lovewell, Christina E Baer, Bibhuti B Mishra, Clare M Smith, Christopher M Sassetti

Open access · bronzeAbstract read
In one paragraph

Article in Mucosal immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
1.2field-weighted citation impact, top 12% 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

60 citing papers in PubMed, 94 citations in OpenAlex.

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  7. Ly6GeLife · 2026
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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

5 authors at 2 institutions in 1 country.

Rustin R LovewellDepartment of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, 01655, USA.ORCID http://orcid.org/0000-0002-3980-2647
Christina E BaerDepartment of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, 01655, USA.
Bibhuti B MishraDepartment of Immunology and Microbial Disease, Albany Medical College, Albany, NY, 12208, USA.
Clare M SmithDepartment of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, 01655, USA.
Christopher M SassettiDepartment of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, 01655, USA. Christopher.sassetti@umassmed.edu.
University of Massachusetts Chan Medical School · USAlbany Medical Center Hospital · US

Funding

Systems Genetics of TuberculosisP01AI132130 · NIAID · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI SASSETTI, CHRISTOPHER M · 2017 to 2021
$11.2M
Defining the Impact of Neutrophils on Bacterial Environment during TuberculosisF32AI120556 · NIAID · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI LOVEWELL, RUSTIN R. · 2015 to 2017
$162k
NIAID NIH HHS F32 AI120556NIAID NIH HHS P01 AI132130
6 · The paper itself

Abstract

Granulocyte recruitment to the pulmonary compartment is a hallmark of progressive tuberculosis (TB). This process is well-documented to promote immunopathology, but can also enhance the replication of the pathogen. Both the specific granulocytes responsible for increasing mycobacterial burden and the underlying mechanisms remain obscure. We report that the known immunomodulatory effects of these cells, such as suppression of protective T-cell responses, play a limited role in altering host control of mycobacterial replication in susceptible mice. Instead, we find that the adaptive immune response preferentially restricts the burden of bacteria within monocytes and macrophages compared to granulocytes. Specifically, mycobacteria within inflammatory lesions are preferentially found within long-lived granulocytes that express intermediate levels of the Ly6G marker and low levels of antimicrobial genes. These cells progressively accumulate in the lung and correlate with bacterial load and disease severity, and the ablation of Ly6G-expressing cells lowers mycobacterial burden. These observations suggest a model in which dysregulated granulocytic influx promotes disease by creating a permissive intracellular niche for mycobacterial growth and persistence.

Indexed as

AnimalsBacterial LoadBiomarkersChemotaxis, LeukocyteCytokinesDisease SusceptibilityGene Expression ProfilingGranulocytesHost-Pathogen InteractionsImmunophenotypingInflammation MediatorsLymphocyte DepletionMiceMice, KnockoutMycobacterium tuberculosisSeverity of Illness IndexBiomarkersCytokinesInflammation Mediators

Identifiers

PMID32483198
PMCPMC7704924
OpenAlexW3032529791

What OpenQuestion holds

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LicenceTDM
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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.