Evidence map›Paper›PMID 39883839›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2025

Rational design and modular synthesis of biodegradable ionizable lipids via the Passerini reaction for mRNA delivery.

Yue Xu, Fanglin Gong, Alex Golubovic, Amy Strilchuk, Jingan Chen, Muye Zhou, Songtao Dong, Breanna Seto, Bowen Li

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

24 citing papers in PubMed.

  1. Bioactive lipid-derived nanoparticles for RNA delivery.Materials today (Kidlington, England) · 2026
    Article
  2. Review
  3. Article
  4. Review
  5. Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. Review
  12. Machine Learning-Driven QSAR Modeling for pKInternational journal of molecular sciences · 2026
    Article
  13. Review
  14. Review
  15. Review
  16. Review
  17. Article
  18. Review
  19. Article
  20. High-Throughput Strategies for Streamlining Lipid Nanoparticle Development Pipeline.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Review
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.

Yue Xu *Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada.ORCID 0000-0001-7672-9170
Fanglin Gong *Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada.
Alex Golubovic *Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada.ORCID 0009-0003-1557-6694
Amy StrilchukLeslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada.
Jingan ChenInstitute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada.ORCID 0009-0002-5105-102X
Muye ZhouLeslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada.ORCID 0009-0008-8827-0609
Songtao DongLeslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada.
Breanna SetoDepartment of Chemistry, University of Toronto, Toronto, ON M5S 3H6, Canada.ORCID 0009-0006-6888-1811
Bowen LiLeslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada.ORCID 0000-0001-5006-9143

Funding

Canada Foundation for Innovation (CFI) 43700Canada Research Chairs (Chaires de recherche du Canada) CRC-2022-00575Canadian Government | Canadian Institutes of Health Research (CIHR) PJH-185722Canadian Government | Natural Sciences and Engineering Research Council of Canada (NSERC) RGPIN-2023-05124Connaught Fund 514681J.P. Bickell Foundation 515159PRiME-UHN Clinical Catalyst Program PRMUHN2022-005
6 · The paper itself

Abstract

The ionizable lipid component of lipid nanoparticle (LNP) formulations is essential for mRNA delivery by facilitating endosomal escape. Conventionally, these lipids are synthesized through complex, multistep chemical processes that are both time-consuming and require significant engineering. Furthermore, the development of new ionizable lipids is hindered by a limited understanding of the structure-activity relationships essential for effective mRNA delivery. In this work, we have developed a modular platform utilizing the Passerini reaction to rapidly generate large, chemically diverse libraries of biodegradable ionizable lipids. This high-throughput approach enables the systematic exploration of various lipid components-head groups, tails, and spacers-and their impacts on mRNA delivery efficiency. By investigating the hydrogen bonding potential between the lipid's head groups and the mRNA's ribose phosphate complex, we found that optimizing the methylene units between the lipid's head groups and linkages could enhance endosomal escape and, consequently, mRNA delivery efficiencies. Leveraging this insight, our platform has led to the identification of the biodegradable ionizable lipid A4B4-S3, which outperforms the current clinical benchmark, SM-102, in gene editing efficacy in mouse liver following systemic administration and demonstrates the promise for repeat-dose protein replacement treatments. This work not only offers a rapid, scalable method for ionizable lipid synthesis but also deepens our understanding of their structure-activity relationships, paving the way for more effective mRNA therapeutics.

Indexed as

Gene Transfer TechniquesLipidsRNA, MessengerAnimalsEndosomesGene EditingHumansMiceNanoparticlesLipidsRNA, Messengergene editingionizable lipidlipid nanoparticlesmRNA delivery

Identifiers

PMID39883839
PMCPMC11804478

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.