Evidence map›Paper›PMID 23798540›Full record

ArticleInfection and immunity2013

Adjuvant activity of naturally occurring monophosphoryl lipopolysaccharide preparations from mucosa-associated bacteria.

Paula M Chilton, Diana M Hadel, Thao T To, Thomas C Mitchell, Richard P Darveau

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
0.7field-weighted citation impact, top 27% 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

24 citing papers in PubMed, 41 citations in OpenAlex.

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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.

Paula M ChiltonInstitute for Cellular Therapeutics, Department of Microbiology and Immunology, University of Louisville School of Medicine, Louisville, Kentucky, USA.
Diana M Hadel
Thao T To
Thomas C Mitchell
Richard P Darveau
University of Louisville · USUniversity of Washington · US

Funding

Variation in Human Innate ImmunityU54AI057141 · NIAID · UNIVERSITY OF WASHINGTON · PI MILLER, SAMUEL I · 2003 to 2013
$102.3M
Comprehensive Training in Inter-Disciplinary Oral Health ResearchT90DE021984 · NIDCR · UNIVERSITY OF WASHINGTON · PI Robert Aaron Cornell · 2012 to 2026
$7.9M
Adjuvant Functions of Detoxified LPSR01AI071047 · NIAID · UNIVERSITY OF LOUISVILLE · PI MITCHELL, THOMAS C. · 2008 to 2012
$1.8M
NIAID NIH HHS R01 AI071047NIAID NIH HHS U54 AI057141NIDCR NIH HHS T90 DE021984PHS HHS NWRCE 5U54 A1057141
6 · The paper itself

Abstract

Natural heterogeneity in the structure of the lipid A portion of lipopolysaccharide (LPS) produces differential effects on the innate immune response. Gram-negative bacterial species produce LPS structures that differ from the classic endotoxic LPS structures. These differences include hypoacylation and hypophosphorylation of the diglucosamine backbone, both differences known to decrease LPS toxicity. The effect of decreased toxicity on the adjuvant properties of many of these LPS structures has not been fully explored. Here we demonstrate that two naturally produced forms of monophosphorylated LPS, from the mucosa-associated bacteria Bacteroides thetaiotaomicron and Prevotella intermedia, function as immunological adjuvants for antigen-specific immune responses. Each form of mucosal LPS increased vaccination-initiated antigen-specific antibody titers in both quantity and quality when given simultaneously with vaccine antigen preparations. Interestingly, adjuvant effects on initial T cell clonal expansion were selective for CD4 T cells. No significant increase in CD8 T cell expansion was detected. MyD88/Toll-like receptor 4 (TLR4) and TRIF/TLR4 signaling pathways showed equally decreased signaling with the LPS forms studied here as with endotoxic LPS or detoxified monophosphorylated lipid A (MPLA). Natural monophosphorylated LPS from mucosa-associated bacteria functions as a weak but effective adjuvant for specific immune responses, with preferential effects on antibody and CD4 T cell responses over CD8 T cell responses.

Indexed as

Adaptor Proteins, Vesicular TransportAdjuvants, ImmunologicAnimalsBacteriaBacteroidesCD4-Positive T-LymphocytesCD8-Positive T-LymphocytesCells, CulturedHumansLipid ALipopolysaccharidesMiceMice, Inbred BALB CMice, Inbred C57BLMonocytesMucous MembraneAdaptor Proteins, Vesicular TransportAdjuvants, ImmunologicLipid ALipopolysaccharidesMyeloid Differentiation Factor 88Toll-Like Receptor 4

Identifiers

PMID23798540
PMCPMC3754217
OpenAlexW2166527585

What OpenQuestion holds

Textmetadata
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.