Evidence map›Paper›PMID 25767877›Full record

ArticlePloS one2015

Retinal photoreceptor expresses toll-like receptors (TLRs) and elicits innate responses following TLR ligand and bacterial challenge.

Pawan Kumar Singh, Ashok Kumar

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

32 citing papers in PubMed, 43 citations in OpenAlex.

  1. Article
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  9. Article
  10. The immune system as a system of relations.Frontiers in immunology · 2022
    Review
  11. Article
  12. Toll-like receptor 2 (TLR2) engages endoplasmic reticulum stress sensor IRE1α to regulate retinal innate responses in Staphylococcus aureus endophthalmitis.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2020
    Article
  13. Article
  14. The cereus matter of Bacillus endophthalmitis.Experimental eye research · 2020
    Review
  15. Frontiers in immunology · 2020
    Article
  16. Article
  17. Pathobiology ofMicroorganisms · 2019
    Article
  18. Article
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  20. 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

2 authors at 2 institutions in 1 country.

Pawan Kumar SinghKresge Eye Institute, Wayne State University School of Medicine, Detroit, Michigan, United States of America; Department of Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, Michigan, United States of America.
Ashok KumarKresge Eye Institute, Wayne State University School of Medicine, Detroit, Michigan, United States of America; Department of Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, Michigan, United States of America.
Kresge Eye Institute · USMichigan United · US

Funding

Toll-like receptors and bacterial endophthalmitisR01EY019888 · NEI · WAYNE STATE UNIVERSITY · PI KUMAR, ASHOK · 2010 to 2014
$1.6M
NEI NIH HHS R01 EY019888NEI NIH HHS R01-EY-19888
6 · The paper itself

Abstract

Toll-like receptors (TLRs) play an important role in host defense against microbial pathogens. Our previous studies have shown that TLRs are expressed on various retinal cells (Microglia and Müller glia) and orchestrate retinal innate responses in bacterial endophthalmitis. In this study, we used a well-characterized mouse cone photoreceptor cell line (661W); and demonstrated that these cells express all known TLRs. Although the stimulation of 661W cells with TLR ligands (Pam3Cys, PolyI:C, LPS, Flagellin, Poly DT, and ODN) did not alter TLR expression, downstream TLR-signaling pathways (NF-κB, p38, and ERK) are activated. Moreover, TLR-activated 661W cells secreted significant amounts of inflammatory mediators (IL-6, IL-1β, MIP-2, and KC) in their culture supernatant, as assessed by ELISA. A similar trend was observed in 661W cells challenged with live bacteria (Staphylococcus aureus). Interestingly, the neutralization of TLR2, a major receptor for S. aureus recognition, did not significantly attenuate bacterial-induced inflammatory mediators, suggesting the existence of TLR2-independent mechanisms in photoreceptor cells. Together, these results indicate that photoreceptors constitutively express functional TLRs and possess the ability to initiate innate responses following pathogen challenge, implicating their role in retinal innate immunity.

Indexed as

AnimalsCells, CulturedImmunity, InnateInflammation MediatorsInterleukin-1betaInterleukin-6LigandsMAP Kinase Signaling SystemMiceMicrogliaNF-kappa Bp38 Mitogen-Activated Protein KinasesPhotoreceptor Cells, VertebrateRetinaSignal TransductionStaphylococcus aureusInflammation MediatorsInterleukin-1betaInterleukin-6LigandsNF-kappa Bp38 Mitogen-Activated Protein KinasesToll-Like Receptors

Identifiers

PMID25767877
PMCPMC4358976
OpenAlexW2002093223

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.