Evidence map›Paper›PMID 38191764›Full record

ArticleJournal of extracellular vesicles2024

Extracellular vesicle-mediated delivery of CRISPR/Cas9 ribonucleoprotein complex targeting proprotein convertase subtilisin-kexin type 9 (Pcsk9) in primary mouse hepatocytes.

Nazma F Ilahibaks, Thomas A Kluiver, Olivier G de Jong, Saskia C A de Jager, Raymond M Schiffelers, Pieter Vader, Weng Chuan Peng, Zhiyong Lei, Joost P G Sluijter

Open access · goldAbstract read
In one paragraph

Article in Journal of extracellular vesicles, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
7.0field-weighted citation impact, top 2% 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

25 citing papers in PubMed, 30 citations in OpenAlex.

  1. Overview of Delivery Methods for Gene Editing.Methods in molecular biology (Clifton, N.J.) · 2027
    Review
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  11. International journal of biological sciences · 2026
    Review
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  15. Article
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  18. Surface-modified extracellular vesicles take their chance in the big PCSK9 inhibitors' race.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Article
  19. Expanding the CRISPR/Cas toolkit: applications in proteomics and theranostics.Frontiers in bioengineering and biotechnology · 2025
    Review
  20. Article
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 5 institutions in 1 country.

Nazma F IlahibaksLaboratory of Experimental Cardiology, Department Heart & Lungs, University Medical Center Utrecht, Utrecht, The Netherlands.
Thomas A KluiverPrincess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.
Olivier G de JongDepartment of Pharmaceutics, Utrecht Institute of Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherland.
Saskia C A de JagerLaboratory of Experimental Cardiology, Department Heart & Lungs, University Medical Center Utrecht, Utrecht, The Netherlands.
Raymond M SchiffelersCDL Research, University Medical Center Utrecht, Utrecht, The Netherlands.
Pieter VaderLaboratory of Experimental Cardiology, Department Heart & Lungs, University Medical Center Utrecht, Utrecht, The Netherlands.
Weng Chuan PengPrincess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.
Zhiyong LeiLaboratory of Experimental Cardiology, Department Heart & Lungs, University Medical Center Utrecht, Utrecht, The Netherlands.
Joost P G SluijterLaboratory of Experimental Cardiology, Department Heart & Lungs, University Medical Center Utrecht, Utrecht, The Netherlands.
Utrecht University · NLNetherlands Heart Institute · NLPrincess Máxima Center · NLPharmo Institute · NLUniversity Medical Center Utrecht · NL

Funding

European Research Council 725229ZonMw 116002016
6 · The paper itself

Abstract

The loss-of-function of the proprotein convertase subtilisin-kexin type 9 (Pcsk9) gene has been associated with significant reductions in plasma serum low-density lipoprotein cholesterol (LDL-C) levels. Both CRISPR/Cas9 and CRISPR-based editor-mediated Pcsk9 inactivation have successfully lowered plasma LDL-C and PCSK9 levels in preclinical models. Despite the promising preclinical results, these studies did not report how vehicle-mediated CRISPR delivery inactivating Pcsk9 affected low-density lipoprotein receptor recycling in vitro or ex vivo. Extracellular vesicles (EVs) have shown promise as a biocompatible delivery vehicle, and CRISPR/Cas9 ribonucleoprotein (RNP) has been demonstrated to mediate safe genome editing. Therefore, we investigated EV-mediated RNP targeting of the Pcsk9 gene ex vivo in primary mouse hepatocytes. We engineered EVs with the rapamycin-interacting heterodimer FK506-binding protein (FKBP12) to contain its binding partner, the T82L mutant FKBP12-rapamycin binding (FRB) domain, fused to the Cas9 protein. By integrating the vesicular stomatitis virus glycoprotein on the EV membrane, the engineered Cas9 EVs were used for intracellular CRISPR/Cas9 RNP delivery, achieving genome editing with an efficacy of ±28.1% in Cas9 stoplight reporter cells. Administration of Cas9 EVs in mouse hepatocytes successfully inactivated the Pcsk9 gene, leading to a reduction in Pcsk9 mRNA and increased uptake of the low-density lipoprotein receptor and LDL-C. These readouts can be used in future experiments to assess the efficacy of vehicle-mediated delivery of genome editing technologies targeting Pcsk9. The ex vivo data could be a step towards reducing animal testing and serve as a precursor to future in vivo studies for EV-mediated CRISPR/Cas9 RNP delivery targeting Pcsk9.

Indexed as

Extracellular VesiclesAnimalsCholesterol, LDLCRISPR-Cas SystemsHepatocytesMiceProprotein Convertase 9SubtilisinsTacrolimus Binding Protein 1ACholesterol, LDLPcsk9 protein, mouseProprotein Convertase 9SubtilisinsTacrolimus Binding Protein 1Acholesterol-lowering therapyCRISPR/Cas9 deliveryexosomesextracellular vesiclesgene therapyincreased LDL-C uptakeLDLR recyclingPcsk9 inactivation

Identifiers

PMID38191764
PMCPMC10774704
OpenAlexW4390684997

What OpenQuestion holds

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LicenceCC BY-NC
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.