Evidence map›Paper›PMID 33498352›Full record

ArticlePharmaceutics2021

Bacterial-Derived Outer Membrane Vesicles are Potent Adjuvants that Drive Humoral and Cellular Immune Responses.

J Timothy Prior, Christopher Davitt, Jonathan Kurtz, Patrick Gellings, James B McLachlan, Lisa A Morici

Open access · goldAbstract read
In one paragraph

Article in Pharmaceutics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
5.6field-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

45 citing papers in PubMed, 68 citations in OpenAlex.

  1. Review
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  4. Depletion of CX3CR1Mucosal immunology · 2026
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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

6 authors at 1 institution in 1 country.

J Timothy PriorDepartment of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA 70112, USA.
Christopher DavittDepartment of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA 70112, USA.
Jonathan KurtzDepartment of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA 70112, USA.
Patrick GellingsDepartment of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA 70112, USA.
James B McLachlanDepartment of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA 70112, USA.
Lisa A MoriciDepartment of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA 70112, USA.ORCID 0000-0002-4799-4941
Tulane University · US

Funding

Tracking & Evaluation CoreU54GM104940 · NIGMS · LSU PENNINGTON BIOMEDICAL RESEARCH CTR · PI AUGUSTO C. OCHOA · 2012 to 2026
$69.1M
Using combination adjuvants to direct and control immune responses at the intestinal mucosaU01AI124289 · NIAID · TULANE UNIVERSITY OF LOUISIANA · PI MCLACHLAN, JAMES B · 2016 to 2020
$2.4M
Defense Threat Reduction Agency HDTRA-1-14-C-0035Defense Threat Reduction Agency HDTRA1-19-C0013Division of Microbiology and Infectious Diseases, National Institute of Allergy and Infectious Diseases 75N93018C00045NIAID NIH HHS U01 AI124289NIGMS NIH HHS U54 GM104940
6 · The paper itself

Abstract

Discovery and development of novel adjuvants that can improve existing or next generation vaccine platforms have received considerable interest in recent years. In particular, adjuvants that can elicit both humoral and cellular immune responses would be particularly advantageous because the majority of licensed vaccines are formulated with aluminum hydroxide (alum) which predominantly promotes antibodies. We previously demonstrated that bacterial-derived outer membrane vesicles (OMV) possess inherent adjuvanticity and drive antigen-specific antibody and cellular immune responses to OMV components. Here, we investigated the ability of OMVs to stimulate innate and adaptive immunity and to function as a stand-alone adjuvant. We show that OMVs are more potent than heat-inactivated and live-attenuated bacteria in driving dendritic cell activation in vitro and in vivo. Mice immunized with OMVs admixed with heterologous peptides generated peptide-specific CD4 and CD8 T cells responses. Notably, OMV adjuvant induced much greater antibody and B cell responses to co-delivered ovalbumin compared to the responses elicited by the adjuvants alum and CpG DNA. Additionally, pre-existing antibodies raised against the OMVs did not impair OMV adjuvanticity upon repeat immunization. These results indicate that vaccines adjuvanted with OMVs elicit robust cellular and humoral immune responses, supporting further development of OMV adjuvant for use in next-generation vaccines.

Indexed as

adjuvantsB cellsdendritic cellsOMVsT cells

Identifiers

PMID33498352
PMCPMC7909432
OpenAlexW3125173161

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.