Evidence map›Paper›PMID 34696262›Full record

ArticleVaccines2021

A Four-Step Purification Process for Gag VLPs: From Culture Supernatant to High-Purity Lyophilized Particles.

Irene González-Domínguez, Elianet Lorenzo, Alice Bernier, Laura Cervera, Francesc Gòdia, Amine Kamen

Abstract read
In one paragraph

Article in Vaccines, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–field-weighted citation impact
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

14 citing papers in PubMed.

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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.

Irene González-DomínguezDepartament d'Enginyeria Química Biològica i Ambiental, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain.
Elianet LorenzoDepartament d'Enginyeria Química Biològica i Ambiental, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain.
Alice BernierDepartment of Bioengineering, McGill University, Montreal, QC H3A 0E9, Canada.
Laura CerveraDepartament d'Enginyeria Química Biològica i Ambiental, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain.
Francesc GòdiaDepartament d'Enginyeria Química Biològica i Ambiental, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain.
Amine KamenDepartment of Bioengineering, McGill University, Montreal, QC H3A 0E9, Canada.ORCID 0000-0001-9110-8815

Funding

Ministerio de Educación Cultura y Deporte, Gobierno de España FPU16/02555Ministerio de Educación, Cultura y Deporte, Gobierno de España EST18/00463
6 · The paper itself

Abstract

Gag-based virus-like particles (VLPs) have high potential as scaffolds for the development of chimeric vaccines and delivery strategies. The production of purified preparations that can be preserved independently from cold chains is highly desirable to facilitate distribution and access worldwide. In this work, a nimble purification has been developed, facilitating the production of Gag VLPs. Suspension-adapted HEK 293 cells cultured in chemically defined cell culture media were used to produce the VLPs. A four-step downstream process (DSP) consisting of membrane filtration, ion-exchange chromatography, polishing, and lyophilization was developed. The purification of VLPs from other contaminants such as host cell proteins (HCP), double-stranded DNA, or extracellular vesicles (EVs) was confirmed after their DSP. A concentration of 2.2 ± 0.8 × 10

Indexed as

chromatographyclarificationEVsGag VLPslyophilizationnanoparticle quantificationpurification

Identifiers

PMID34696262
PMCPMC8539588

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Registered trials

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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.