Evidence map›Paper›PMID 35356755›Full record

ArticleMolecular therapy. Methods & clinical development2022

A combinatorial CRISPR-Cas12a attack on HIV DNA.

Minghui Fan, Ben Berkhout, Elena Herrera-Carrillo

Abstract read
In one paragraph

Article in Molecular therapy. Methods & clinical development, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Review
  6. Review
  7. Review
  8. Review
  9. Article
  10. Review
  11. Article
  12. CRISPR-Cas12b enables a highly efficient attack on HIV proviral DNA in T cell cultures.Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie · 2023
    Article
  13. A CRISPR-Cas Cure for HIV/AIDS.International journal of molecular sciences · 2023
    Review
  14. Article
  15. 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

3 authors.

Minghui FanLaboratory of Experimental Virology, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands.
Ben BerkhoutLaboratory of Experimental Virology, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands.
Elena Herrera-CarrilloLaboratory of Experimental Virology, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands.

Funding

Disabling the replication-competent HIV provirus in the reservoir by combined CRISPR-Cas actionR01AI145045 · NIAID · ACADEMICAL MEDICAL CENTER · PI BERKHOUT, BENJAMIN · 2019 to 2023
$2.6M
NIAID NIH HHS R01 AI145045
6 · The paper itself

Abstract

CRISPR-Cas12a is an alternative class 2 gene editing tool that may cause less off-target effects than the original Cas9 system. We have previously demonstrated that Cas12a attack with a single CRISPR RNA (crRNA) can neutralize all infectious HIV in an infected T cell line in cell culture. However, we demonstrated that HIV escapes from most crRNAs by acquisition of a mutation in the crRNA target sequence, thus providing resistance against Cas12a attack. Here, we tested the antiviral activity of seven dual crRNA combinations and analyzed the HIV proviral genomes for mutations at the target sites. We demonstrated that dual crRNA combinations exhibit more robust antiviral activity than a single crRNA attack and, more important, that the dual-crRNA therapy can prevent virus escape in long-term cultures. We confirmed the absence of any replication-competent virus in these apparently cured cultures. Surprisingly, we did not detect excision of the HIV sequences located between two Cas12a cleavage sites. Instead, we observed almost exclusively HIV inactivation by "hypermutation," that is, the introduction of indel mutations at both target sites due to the error-prone cellular DNA repair machinery.

Indexed as

CRISPR-Cas12acuredual crRNAsHIV-1lentiviral vector

Identifiers

PMID35356755
PMCPMC8933334

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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.