ArticleNucleic acids research2024
Haplotype-resolved de novo assembly revealed unique characteristics of alternative lengthening of telomeres in mouse embryonic stem cells.
Article in Nucleic acids research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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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
1 citing paper in PubMed.
- Highly mutagenic copying of telomeric circles promotes ALT establishment.Nature communications · 2026Article
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4 authors.
Funding
Abstract
Telomeres protect chromosome ends from DNA damage responses, and their dysfunction triggers genomic alterations like chromosome fusion and rearrangement, which can lead to cellular death. Certain cells, including specific cancer cells, adopt alternative lengthening of telomere (ALT) to counteract dysfunctional telomeres and proliferate indefinitely. While telomere instability and ALT activity are likely major sources of genomic alteration, the patterns and consequences of such changes at the nucleotide level in ALT cells remain unexplored. Here we generated haplotype-resolved genome assemblies for type I ALT mouse embryonic stem cells, facilitated by highly accurate or ultra-long reads and Hi-C reads. High-quality genome revealed ALT-specific complex chromosome end structures and various genomic alterations including over 1000 structural variants (SVs). The unique sequence (mTALT) used as a template for type I ALT telomeres showed traces of being recruited into the genome, with mTALT being replicated with remarkably high accuracy. Subtelomeric regions exhibited distinct characteristics: resistance to the accumulation of SVs and small variants. We genotyped SVs at allele resolution, identifying genes (Rgs6, Dpf3 and Tacc2) crucial for maintaining ALT telomere stability. Our genome assembly-based approach elucidated the unique characteristics of ALT genome, offering insights into the genome evolution of cells surviving telomere-derived crisis.
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