Evidence map›Paper›PMID 39484742›Full record

ArticleMolecular microbiology2024

Leptospira Leptolysin Contributes to Serum Resistance but Is Not Essential for Acute Infection.

Daniella Dos Santos Courrol, Cassia Moreira Santos, Rosa Maria Chura-Chambi, Lígia Morganti, Kátia Eliane Santos Avelar, Fernanda de Moraes Maia, Rodrigo Nunes Rodrigues-da-Silva, Elsio Augusto Wunder, Angela Silva Barbosa

Abstract read
In one paragraph

Article in Molecular microbiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. 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.

Daniella Dos Santos CourrolLaboratory of Bacteriology, Butantan Institute, São Paulo, Brazil.
Cassia Moreira SantosLaboratory of Bacteriology, Butantan Institute, São Paulo, Brazil.
Rosa Maria Chura-ChambiLaboratory of Bacteriology, Butantan Institute, São Paulo, Brazil.
Lígia MorgantiCenter of Biotechnology, Energy and Nuclear Research Institute (IPEN)-CNEN/SP, São Paulo, Brazil.
Kátia Eliane Santos AvelarLaboratório de Referência Nacional para Leptospirose, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil.
Fernanda de Moraes MaiaLaboratório de Hantaviroses e Rickettsioses, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil.
Rodrigo Nunes Rodrigues-da-SilvaLaboratório de Hantaviroses e Rickettsioses, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil.
Elsio Augusto WunderDepartment of Pathobiology and Veterinary Science, University of Connecticut, Storrs, Connecticut, USA.ORCID 0000-0002-5239-8511
Angela Silva BarbosaLaboratory of Bacteriology, Butantan Institute, São Paulo, Brazil.ORCID 0000-0002-6458-9489

Funding

Development of a Universal Vaccine Against LeptospirosisR01AI182354 · NIAID · UNIVERSITY OF CONNECTICUT STORRS · PI Elsio Augusto Wunder · 2024 to 2026
$2.3M
Evolutionary multispecies transcriptomics to reveal genes conferring pathogenicity within Leptospira sppR21AI163663 · NIAID · YALE UNIVERSITY · PI TOWNSEND, JEFFREY PETER, WUNDER, ELSIO AUGUSTO · 2021 to 2022
$461k
Fundação ButantanFundação de Amparo à Pesquisa do Estado de São Paulo 2017/12924-3Fundação de Amparo à Pesquisa do Estado de São Paulo 2018/12896-2Fundação de Amparo à Pesquisa do Estado de São Paulo 2019/22706-9NIAID NIH HHS R01 AI182354NIAID NIH HHS R21 AI163663NIH HHS R21AI163663
6 · The paper itself

Abstract

Previous in vitro works focusing on virulence determinants of the spirochete Leptospira implicated metalloproteinases as putative contributing factors to the pathogenicity of these bacteria. Those proteins have the capacity to degrade extracellular matrix components (ECM) and proteins of host's innate immunity, notably effectors of the complement system. In this study, we gained further knowledge on the role of leptolysin, one of the leptospiral-secreted metalloproteinases, previously described as having a broad substrate specificity. We demonstrated that a proportion of human patients with mild leptospirosis evaluated in the current study produced antibodies that recognize leptolysin, thus indicating that the protease is expressed during host infection. Using recombinant protein and a knockout mutant strain, Manilae leptolysin

Indexed as

Leptospira interrogansLeptospirosisAnimalsAntibodies, BacterialBacterial ProteinsComplement System ProteinsCricetinaeDisease Models, AnimalHumansMetalloproteasesVirulenceVirulence FactorsAntibodies, BacterialBacterial ProteinsComplement System ProteinsMetalloproteasesVirulence Factorscomplement systemleptolysinLeptospiraserum resistance

Identifiers

PMID39484742
PMCPMC11682033

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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.