Evidence map›Paper›PMID 26090563›Full record

ArticleHuman vaccines & immunotherapeutics2015

Impact of formulation and particle size on stability and immunogenicity of oil-in-water emulsion adjuvants.

Vidyashankara Iyer, Corinne Cayatte, Bernardo Guzman, Kirsten Schneider-Ohrum, Ryan Matuszak, Angie Snell, Gaurav Manohar Rajani, Michael P McCarthy, Bilikallahalli Muralidhara

Open access · bronzeAbstract read
In one paragraph

Article in Human vaccines & immunotherapeutics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
1.4field-weighted citation impact, top 20% 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

31 citing papers in PubMed, 87 citations in OpenAlex.

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  14. Vaccine adjuvants for infectious disease in the clinic.Bioengineering & translational medicine · 2024
    Review
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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

9 authors at 1 institution in 1 country.

Vidyashankara Iyera Formulation Sciences; Biopharmaceutical Development; Medimmune LLC ; Gaithersburg , MD USA.
Corinne Cayatte
Bernardo Guzman
Kirsten Schneider-Ohrum
Ryan Matuszak
Angie Snell
Gaurav Manohar Rajani
Michael P McCarthy
Bilikallahalli Muralidhara
Institut de Recherche Vaccinale · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Oil-in-water emulsions have gained consideration as vaccine adjuvants in recent years due to their ability to elicit a differentiated immunogenic response compared to traditional aluminum salt adjuvants. Squalene, a cholesterol precursor, is a natural product with immunostimulatory properties, making it an ideal candidate for such oil-in-water emulsions. Particle size is a key parameter of these emulsions and its relationship to stability and adjuvanticity has not been extensively studied. This study evaluates the effect of particle size on the stability and immunogenicity of squalene emulsions. We investigated the effect of formulation parameters such as surfactant concentration on particle size, resulting in particles with average diameter of 80 nm, 100 nm, 150 nm, 200 nm, or 250 nm. Emulsions were exposed to shear and temperature stresses, and stability parameters such as pH, osmolarity, size, and in-depth visual appearance were monitored over time. In addition, adjuvanticity of different particle size was assessed in a mouse model using Respiratory Syncytial Virus Fusion protein (RSV-F) as a model antigen. Temperature dependent phase separation appeared to be the most common route of degradation occurring in the higher particle sizes emulsions. The emulsions below 150 nm size maintained stability at either 5 °C or 25 °C, and the 80 nm diameter ones showed no measurable changes in size even after one month at 40 °C. In vivo studies using the emulsions as an adjuvant with RSV F antigen revealed that superior immunogenicity could be achieved with the 80 nm particle size emulsion.

Indexed as

Adjuvants, ImmunologicAnimalsChemistry, PharmaceuticalDrug StabilityEmulsionsHydrogen-Ion ConcentrationImmunity, CellularMiceMice, Inbred BALB CNeutralization TestsOilsOsmolar ConcentrationParticle SizeRespiratory Syncytial Virus InfectionsRespiratory Syncytial Virus VaccinesSqualeneAdjuvants, ImmunologicEmulsionsOilsRespiratory Syncytial Virus VaccinesSqualeneWateradjuvantsemulsionsRSVsqualenestabilitysurfactantsvaccines

Identifiers

PMID26090563
PMCPMC4517459
OpenAlexW1584940815

What OpenQuestion holds

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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.