Evidence map›Paper›PMID 42050331›Full record

ArticleNature biotechnology2026

Pool-packaged AAV libraries exhibit extensive length-dependent and homology-dependent chimerism.

Jean-Benoît Lalanne, Chau Huynh, John K Mich, Avery C Hunker, Troy A McDiarmid, Haedong Kim, Boaz P Levi, Jonathan T Ting, Jay Shendure

Abstract read
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In one paragraph

Article in Nature biotechnology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

9 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Combining Machine Learning and Multiplexed,bioRxiv : the preprint server for biology · 2025
    Article
  9. Advances in AAV capsid engineering: Integrating rational design, directed evolution and machine learning.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Jean-Benoît Lalanne *Department of Genome Sciences, University of Washington, Seattle, WA, USA. jean-benoit.lalanne@umontreal.ca.ORCID http://orcid.org/0000-0001-8753-0669
Chau Huynh *Department of Genome Sciences, University of Washington, Seattle, WA, USA.
John K MichAllen Institute for Brain Science, Seattle, WA, USA.ORCID http://orcid.org/0000-0002-1626-1139
Avery C HunkerAllen Institute for Brain Science, Seattle, WA, USA.ORCID http://orcid.org/0000-0003-0508-3637
Troy A McDiarmidDepartment of Genome Sciences, University of Washington, Seattle, WA, USA.ORCID http://orcid.org/0000-0002-4893-9733
Haedong KimDepartment of Genome Sciences, University of Washington, Seattle, WA, USA.ORCID http://orcid.org/0000-0003-3589-0042
Boaz P LeviAllen Institute for Brain Science, Seattle, WA, USA.ORCID http://orcid.org/0000-0002-8346-872X
Jonathan T TingAllen Institute for Brain Science, Seattle, WA, USA.ORCID http://orcid.org/0000-0001-8266-0392
Jay ShendureDepartment of Genome Sciences, University of Washington, Seattle, WA, USA. shendure@uw.edu.ORCID http://orcid.org/0000-0002-1516-1865

Funding

Open-Access AAV Toolbox for Basal Ganglia Cell Types and CircuitsUF1MH128339 · NIMH · ALLEN INSTITUTE · PI BAKKEN, TRYGVE, DAIGLE, TANYA LYNN · 2021 to 2021
$7.3M
Versatile, exponentially scalable methods for single cell molecular profilingR01HG010632 · NHGRI · UNIVERSITY OF WASHINGTON · PI Jay Ashok Shendure, Bruce Colston Trapnell · 2019 to 2026
$5.9M
Cancer Research Society (Société de Recherche sur le Cancer) 1155581Gouvernement du Canada | Natural Sciences and Engineering Research Council of Canada (Conseil de Recherches en Sciences Naturelles et en Génie du Canada) Banting FellowshipU.S. Department of Health & Human Services | National Institutes of Health (NIH) R01HG010632U.S. Department of Health & Human Services | National Institutes of Health (NIH) UF1MH128339
6 · The paper itself

Abstract

Adeno-associated viruses (AAVs) are preferred gene therapy vectors because of their versatility, durability and safety profile. Here, we demonstrate extensive chimerism, manifesting as pervasive barcode swapping, among complex recombinant AAV (rAAV) libraries that are packaged as a pool. The observed chimerism is length and homology dependent but capsid independent, in some cases affecting the majority of packaged rAAV genomes. These results have implications for the design and deployment of functional rAAV libraries.

Identifiers

PMID42050331

What Socratic holds

Textmetadata
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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 Socratic graph.