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Mostrando ítems 1-10 de 11
Artículo
The DNA damage response acts as a safeguardagainst harmful DNA–RNA hybrids ofdifferent origins
(EMBO Press, 2019-07-24)
Despite playing physiological roles in specific situations, DNA–RNA hybrids threat genome integrity. To investigate how cells do counteract spontaneous DNA–RNA hybrids, here we screen an siRNA library covering 240 human ...
Artículo
MutSβ regulates G4-associated telomeric R-loops to maintain telomere integrity in ALT cancer cells
(Elsevier, 2022)
Up to 15% of human cancers maintain their telomeres through a telomerase-independent mechanism, termed “alternative lengthening of telomeres” (ALT) that relies on homologous recombination between telomeric sequences. ...
Artículo
Depletion of the MFAP1/SPP381 Splicing Factor Causes R-Loop-Independent Genome Instability
(Elsevier, 2019)
THO/TREX is a conserved complex with a role in messenger ribonucleoprotein biogenesis that links gene expression and genome instability. Here, we show that human THO interacts with MFAP1 (microfibrillar-associated protein ...
Artículo
UAP56/DDX39B is a major cotranscriptional RNA–DNA helicase that unwinds harmful R loops genome-wide
(Cold Spring Harbor Laboratory Press, 2020)
Nonscheduled R loops represent a major source of DNA damage and replication stress. Cells have different ways to prevent R-loop accumulation. One mechanism relies on the conserved THO complex in association with cotranscriptional ...
Artículo
Topoisomerase 1-dependent R-loop deficiency drives accelerated replication and genomic instability
(Elsevier, 2022)
DNA replication is a complex process tightly regulated to ensure faithful genome duplication, and its perturbation leads to DNA damage and genomic instability. Replication stress is commonly associated with slow and stalled ...
Artículo
Spontaneous DNA-RNA hybrids: differential impacts throughout the cell cycle
(Taylor & Francis, 2020)
A large body of research supports that transcription plays a major role among the many sources of replicative stress contributing to genome instability. It is therefore not surprising that the DNA damage response has a ...
Artículo
A transcription-based mechanism for oncogenic β-catenin-induced lethality in BRCA1/2-deficient cells
(Springer Nature, 2021)
BRCA1 or BRCA2 germline mutations predispose to breast, ovarian and other cancers. High-throughput sequencing of tumour genomes revealed that oncogene amplification and BRCA1/2 mutations are mutually exclusive in cancer, ...
Artículo
Multiple signaling kinases target Mrc1 to prevent genomic instability triggered by transcription-replication conflicts
(Nature Publishing Group:, 2018)
Conflicts between replication and transcription machineries represent a major source of genomic instability and cells have evolved strategies to prevent such conflicts. However, little is known regarding how cells cope ...
Artículo
The antitumor drugs trabectedin and lurbinectedin induce transcription-dependent replication stress and genome instability
(American Association for Cancer Research, 2019)
R-loops are a major source of replication stress, DNA damage, and genome instability, which are major hallmarks of cancer cells. Accordingly, growing evidence suggests that R-loops may also be related to cancer. Here we ...
Artículo
Epigenetic features of human telomeres
(Oxford University Press, 2018)
Although subtelomeric regions in humans are heterochromatic, the epigenetic nature of human telomeres remains controversial. This controversy might have been influenced by the confounding effect of subtelomeric regions and ...