Evidence map›Paper›PMID 27996041›Full record

ArticleScientific reports2016

Leptospira surface adhesin (Lsa21) induces Toll like receptor 2 and 4 mediated inflammatory responses in macrophages.

Syed M Faisal, Vivek P Varma, M Subathra, Sarwar Azam, Anil K Sunkara, Mohd Akif, Mirza S Baig, Yung-Fu Chang

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 17% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.

  1. Pooled it
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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

8 authors at 4 institutions in 2 countries.

Syed M FaisalNational Institute of Animal Biotechnology, Hyderabad, India.
Vivek P VarmaNational Institute of Animal Biotechnology, Hyderabad, India.
M SubathraNational Institute of Animal Biotechnology, Hyderabad, India.
Sarwar AzamNational Institute of Animal Biotechnology, Hyderabad, India.
Anil K SunkaraNational Institute of Animal Biotechnology, Hyderabad, India.
Mohd AkifDepartment of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, India.
Mirza S BaigCentre for Biosciences and Biomedical Engineering, Indian Institute of Technology, Indore, MP, India.
Yung-Fu ChangDepartment of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA.
National Institute of Animal Biotechnology · INCornell University · USIndian Institute of Technology Indore · INUniversity of Hyderabad · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Leptospirosis is zoonotic and emerging infectious disease of global importance. Little is understood about Leptospira pathogenesis and host immune response. In the present work we have investigated how Leptospira modulates the host innate immune response mediated by Toll-like receptors (TLRs) via surface exposed proteins. We screened Leptospira outer membrane/surface proteins for their ability to activate/inhibit TLR2/4 signaling in HEK293 cell lines. Of these the 21 kDa Leptospira surface adhesin, Lsa21 had strong TLR2 and TLR4 activity leading to production of proinflammatory cytokines and expression of costimulatory molecules in mouse macrophages. This activity of Lsa21 on innate response was dependent on activation of mitogen activated protein kinases (MAPKs) via stimulating the rapid phosphorylation of p38, JNK and activation of transcription factor NF-κB. Additionally, neutralizing antibodies against TLR2 and TLR4 significantly inhibited cytokine secretion and attenuated Lsa21 induced phosphorylation of p38 and JNK. Furthermore, Lsa21 induced cytokine levels were significantly lower in TLR2

Indexed as

Adhesins, BacterialAnimalsAntibodies, NeutralizingCell LineCytokinesFemaleHEK293 CellsHumansImmunity, InnateInflammationLeptospiraLeptospirosisMacrophagesMAP Kinase Signaling SystemMiceMice, Inbred C57BLAdhesins, BacterialAntibodies, NeutralizingCytokinesMyd88 protein, mouseMyeloid Differentiation Factor 88Recombinant ProteinsTLR2 protein, humanTlr2 protein, mouseTLR4 protein, humanTlr4 protein, mouseToll-Like Receptor 2Toll-Like Receptor 4

Identifiers

PMID27996041
PMCPMC5172228
OpenAlexW2565072955

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.