Evidence map›Paper›PMID 23408095›Full record

ReviewFrontiers in cellular and infection microbiology2013

Recognition of lipid A variants by the TLR4-MD-2 receptor complex.

Nina Maeshima, Rachel C Fernandez

Open access · goldAbstract readReview
In one paragraph

Review in Frontiers in cellular and infection microbiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 147 papers.

0numbers the graph read from it
0cells of the map it votes in
147citing papers in PubMed
8.8field-weighted citation impact, top 2% 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

147 citing papers in PubMed, 262 citations in OpenAlex.

  1. Article
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  13. Engineering low-endotoxin lipid A in a double auxotrophFrontiers in cellular and infection microbiology · 2026
    Article
  14. Article
  15. Article
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  18. Review
  19. iMeta · 2025
    Article
  20. Article

87 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Nina MaeshimaDepartment of Microbiology and Immunology, University of British Columbia, Vancouver, BC, Canada.
Rachel C Fernandez
University of British Columbia · CA

Funding

Canadian Institutes of Health Research MOP-102706
6 · The paper itself

Abstract

Lipopolysaccharide (LPS) is a component of the outer membrane of almost all Gram-negative bacteria and consists of lipid A, core sugars, and O-antigen. LPS is recognized by Toll-like receptor 4 (TLR4) and MD-2 on host innate immune cells and can signal to activate the transcription factor NFκB, leading to the production of pro-inflammatory cytokines that initiate and shape the adaptive immune response. Most of what is known about how LPS is recognized by the TLR4-MD-2 receptor complex on animal cells has been studied using Escherichia coli lipid A, which is a strong agonist of TLR4 signaling. Recent work from several groups, including our own, has shown that several important pathogenic bacteria can modify their LPS or lipid A molecules in ways that significantly alter TLR4 signaling to NFκB. Thus, it has been hypothesized that expression of lipid A variants is one mechanism by which pathogens modulate or evade the host immune response. Additionally, several key differences in the amino acid sequences of human and mouse TLR4-MD-2 receptors have been shown to alter the ability to recognize these variations in lipid A, suggesting a host-specific effect on the immune response to these pathogens. In this review, we provide an overview of lipid A variants from several human pathogens, how the basic structure of lipid A is recognized by mouse and human TLR4-MD-2 receptor complexes, as well as how alteration of this pattern affects its recognition by TLR4 and impacts the downstream immune response.

Indexed as

AnimalsCytokinesDimerizationGram-Negative BacteriaHost SpecificityHumansImmunity, InnateLipid ALymphocyte Antigen 96MiceSignal TransductionToll-Like Receptor 4CytokinesLipid ALY96 protein, humanLy96 protein, mouseLymphocyte Antigen 96TLR4 protein, humanTlr4 protein, mouseToll-Like Receptor 4innate immunitylipid ALPSsignalingTLR4

Identifiers

PMID23408095
PMCPMC3569842
OpenAlexW2023142724

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.