Evidence map›Paper›PMID 31427168›Full record

ArticleMolecular therapy : the journal of the American Society of Gene Therapy2019

Endocytic Profiling of Cancer Cell Models Reveals Critical Factors Influencing LNP-Mediated mRNA Delivery and Protein Expression.

Edward J Sayers, Samantha E Peel, Anna Schantz, Richard M England, Maya Beano, Stephanie M Bates, Arpan S Desai, Sanyogitta Puri, Marianne B Ashford, Arwyn T Jones

Open access · hybridAbstract read
In one paragraph

Article in Molecular therapy : the journal of the American Society of Gene Therapy, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed
3.7field-weighted citation impact, top 6% 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

59 citing papers in PubMed, 103 citations in OpenAlex.

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  11. The strategies and advances of mRNA translation booster.Asian journal of pharmaceutical sciences · 2025
    Review
  12. Review
  13. Rational design of lipid nanoparticles for enabling gene therapies.Molecular therapy. Methods & clinical development · 2025
    Review
  14. Article
  15. Investigation of the impact of lipid nanoparticle compositions on the delivery and T cell response of circRNA vaccine.Journal of controlled release : official journal of the Controlled Release Society · 2025
    Article
  16. Cubic Phase-Inducible Zwitterionic Phospholipids Improve the Functional Delivery of mRNA.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  17. Review
  18. Article
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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

10 authors at 3 institutions in 2 countries.

Edward J SayersSchool of Pharmacy and Pharmaceutical Sciences, Cardiff University, Redwood Building, King Edward VII Avenue, Cardiff CF10 3NB, Wales.
Samantha E PeelDiscovery Biology, Discovery Sciences, IMED Biotech Unit, AstraZeneca, Cambridge, UK.
Anna SchantzAdvanced Drug Delivery, Pharmaceutical Sciences, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden.
Richard M EnglandEarly Chemical Development, Pharmaceutical Sciences, IMED Biotech Unit, AstraZeneca, Macclesfield, UK.
Maya BeanoPathology, Drug Safety and Metabolism, IMED Biotech Unit, AstraZeneca, Cambridge, UK.
Stephanie M BatesPathology, Drug Safety and Metabolism, IMED Biotech Unit, AstraZeneca, Cambridge, UK.
Arpan S DesaiAdvanced Drug Delivery, Pharmaceutical Sciences, IMED Biotech Unit, AstraZeneca, Cambridge, UK.
Sanyogitta PuriAdvanced Drug Delivery, Pharmaceutical Sciences, IMED Biotech Unit, AstraZeneca, Cambridge, UK.
Marianne B AshfordAdvanced Drug Delivery, Pharmaceutical Sciences, IMED Biotech Unit, AstraZeneca, Cambridge, UK. Electronic address: marianne.ashford@astrazeneca.com.
Arwyn T JonesSchool of Pharmacy and Pharmaceutical Sciences, Cardiff University, Redwood Building, King Edward VII Avenue, Cardiff CF10 3NB, Wales. Electronic address: jonesat@cardiff.ac.uk.
AstraZeneca (United Kingdom) · GBCardiff University · GBAstraZeneca (Sweden) · SE

Funding

Biotechnology and Biological Sciences Research Council BB/D013038/1
6 · The paper itself

Abstract

Lipid nanoparticles have great potential for delivering nucleic-acid-based therapeutics, but low efficiency limits their broad clinical translation. Differences in transfection capacity between in vitro models used for nanoparticle pre-clinical testing are poorly understood. To address this, using a clinically relevant lipid nanoparticle (LNP) delivering mRNA, we highlight specific endosomal characteristics in in vitro tumor models that impact protein expression. A 30-cell line LNP-mRNA transfection screen identified three cell lines having low, medium, and high transfection that correlated with protein expression when they were analyzed in tumor models. Endocytic profiling of these cell lines identified major differences in endolysosomal morphology, localization, endocytic uptake, trafficking, recycling, and endolysosomal pH, identified using a novel pH probe. High-transfecting cells showed rapid LNP uptake and trafficking through an organized endocytic pathway to lysosomes or rapid exocytosis. Low-transfecting cells demonstrated slower endosomal LNP trafficking to lysosomes and defective endocytic organization and acidification. Our data establish that efficient LNP-mRNA transfection relies on an early and narrow endosomal escape window prior to lysosomal sequestration and/or exocytosis. Endocytic profiling should form an important pre-clinical evaluation step for nucleic acid delivery systems to inform model selection and guide delivery-system design for improved clinical translation.

Indexed as

Gene ExpressionNanoparticlesTransfectionCell Line, TumorEndocytosisEndosomesFlow CytometryFluorescent Antibody TechniqueGenes, ReporterHumansHydrogen-Ion ConcentrationLipidsLysosomesRNA, MessengerLipidsRNA, Messengerendocytosislipid nanoparticleLNPmRNAnucleic acidpH sensorrecyclingtransfection

Identifiers

PMID31427168
PMCPMC6839007
OpenAlexW2964528532

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.