PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18805512-9 2008 However, in wrn-kd but not wrn-wt cells they were converted into DNA double-strand breaks (DSBs) at high frequency, as shown by neutral comet assay and phosphorylation of H2AX. dsbs 91-95 WRN RecQ like helicase Homo sapiens 12-15 24429382-6 2014 Accumulation of the mutant WRN at the site of laser-induced DSBs occurred with the same kinetics as wild type WRN in live HeLa cells. dsbs 60-64 WRN RecQ like helicase Homo sapiens 27-30 24429382-7 2014 While the wild type WRN relocalized to the nucleoli after 24 hours recovery from etoposide-induced DSBs, the mutant WRN remained mostly in the nucleoplasm. dsbs 99-103 WRN RecQ like helicase Homo sapiens 20-23 18852298-5 2008 Thus, we provide novel evidence that WRN is required to avoid accumulation of DSBs and fork collapse after replication perturbation, and that prompt MUS81-dependent generation of DSBs is instrumental for recovery from hydroxyurea-mediated replication arrest under such pathological conditions. dsbs 78-82 WRN RecQ like helicase Homo sapiens 37-40 18524993-6 2008 Furthermore, "knockdown" of either DNA ligase IIIalpha or WRN leads to increased accumulation of unrepaired DSBs, demonstrating that they contribute to the repair of DSBs. dsbs 108-112 WRN RecQ like helicase Homo sapiens 58-61 18658245-5 2008 The presence of the 70/86 Ku heterodimer (Ku), participating in the repair of double-strand breaks (DSBs), alleviates WRN exonuclease blockage imposed by the oxidatively induced DNA lesions. dsbs 100-104 WRN RecQ like helicase Homo sapiens 118-121 18524993-6 2008 Furthermore, "knockdown" of either DNA ligase IIIalpha or WRN leads to increased accumulation of unrepaired DSBs, demonstrating that they contribute to the repair of DSBs. dsbs 166-170 WRN RecQ like helicase Homo sapiens 58-61 17449919-7 2007 These results indicate that WS cells are prone to accumulate DSBs spontaneously due to a defect of WRN, which leads to increased chromosome instability that could activate checkpoints, resulting in accelerated senescence. dsbs 61-65 WRN RecQ like helicase Homo sapiens 99-102