ArticleMolecular therapy : the journal of the American Society of Gene Therapy2023
Retained chromosomal integrity following CRISPR-Cas9-based mutational correction in human embryos.
Article in Molecular therapy : the journal of the American Society of Gene Therapy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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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.
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Who cites it
2 citing papers in PubMed, 5 citations in OpenAlex.
- Genome Editing for Fertility: Unlocking the Promise of CRISPR/Cas9 in Addressing Male Infertility - A Narrative Review.Reproductive sciences (Thousand Oaks, Calif.) · 2025Review
- Various repair events following CRISPR/Cas9-based mutational correction of an infertility-related mutation in mouse embryos.Journal of assisted reproduction and genetics · 2024Article
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Authors and funding
15 authors at 2 institutions in 2 countries.
Funding
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Abstract
Human germline gene correction by targeted nucleases holds great promise for reducing mutation transmission. However, recent studies have reported concerning observations in CRISPR-Cas9-targeted human embryos, including mosaicism and loss of heterozygosity (LOH). The latter has been associated with either gene conversion or (partial) chromosome loss events. In this study, we aimed to correct a heterozygous basepair substitution in PLCZ1, related to infertility. In 36% of the targeted embryos that originated from mutant sperm, only wild-type alleles were observed. By performing genome-wide double-digest restriction site-associated DNA sequencing, integrity of the targeted chromosome (i.e., no deletions larger than 3 Mb or chromosome loss) was confirmed in all seven targeted GENType-analyzed embryos (mutant editing and absence of mutation), while short-range LOH events (shorter than 10 Mb) were clearly observed by single-nucleotide polymorphism assessment in two of these embryos. These results fuel the currently ongoing discussion on double-strand break repair in early human embryos, making a case for the occurrence of gene conversion events or partial template-based homology-directed repair.
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