Evidence map›Paper›PMID 31191528›Full record

ReviewFrontiers in immunology2019

Bacterial Protein Toll-Like-Receptor Agonists: A Novel Perspective on Vaccine Adjuvants.

Sudeep Kumar, Raju Sunagar, Edmund Gosselin

Open access · goldAbstract readReview
In one paragraph

Review in Frontiers in immunology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed
5.8field-weighted citation impact, top 3% 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

72 citing papers in PubMed, 110 citations in OpenAlex.

  1. Assessment ofOpen veterinary journal · 2026
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  9. Design and Expression ofInternational journal of molecular sciences · 2025
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12 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

3 authors at 1 institution in 1 country.

Sudeep KumarDepartment of Immunology and Microbial Diseases, Albany Medical College, Albany, NY, United States.
Raju SunagarElla Foundation, Genome Valley, Hyderabad, India.
Edmund GosselinDepartment of Immunology and Microbial Diseases, Albany Medical College, Albany, NY, United States.
Albany Medical Center Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Adjuvants have been used in vaccines for over a century, however, the search for safe and effective vaccine adjuvants continues. In recent decades toll-like-receptor (TLR) agonists have been investigated as potential vaccine adjuvants. In this regard, the majority of the currently investigated TLR agonists are non-protein microbial components such as lipopolysaccharides, oligonucleotides, and lipopeptides. On the other hand, a growing number of studies reveal that TLR signaling and immune responses can be activated by numerous bacterial proteins. However, their potential roles as adjuvants have been somewhat overlooked. Herein, we discuss several such bacterial proteins which exhibit adjuvant properties, including the activation of TLR signaling, antigen presenting cell maturation, pro-inflammatory cytokine production and adaptive immune response. The protein nature of these TLR agonists presents several unique features not shared by non-protein TLR agonists. These properties include the amenability for modifying the structure and function as necessary for optimal immunogenicity and minimal toxicity. Protein adjuvants can be genetically fused to protein antigens which ensure the co-delivery of adjuvant-antigen not only into the same cell but also in the same endocytic cargo, leading to more effective activation of innate and adaptive immune response.

Indexed as

Adjuvants, ImmunologicAntigen-Presenting CellsAntigens, HeterophileAutoantigensBacterial ProteinsChemotaxis, LeukocyteDimerizationEndocytosisHumansImmunologic FactorsLigandsMacrophagesNeutrophilsProtein EngineeringReceptors, Pattern RecognitionSelf ToleranceAdjuvants, ImmunologicAntigens, HeterophileAutoantigensBacterial ProteinsImmunologic FactorsLigandsReceptors, Pattern RecognitionTLR2 protein, humanTLR4 protein, humanTLR5 protein, humanToll-Like Receptor 2Toll-Like Receptor 4Toll-Like Receptor 5Vaccinesadjuvantantigen presenting cellscell-mediated immunityTLRTLR agonistvaccine

Identifiers

PMID31191528
PMCPMC6549121
OpenAlexW2947960138

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.