2023
Pot1b −/− tumors activate G-quadruplex-induced DNA damage to promote telomere hyper-elongation
Takasugi T, Gu P, Liang F, Staco I, Chang S. Pot1b −/− tumors activate G-quadruplex-induced DNA damage to promote telomere hyper-elongation. Nucleic Acids Research 2023, 51: 9227-9247. PMID: 37560909, PMCID: PMC10516629, DOI: 10.1093/nar/gkad648.Peer-Reviewed Original ResearchConceptsDNA damage responseDamage responseReplication protein A (RPA) complexDependent DNA damage responseTelomere length homeostasisTelomere maintenance mechanismLength homeostasisTelomerase recruitmentPOT1 proteinsHuman POT1Mouse genomeLength maintenanceFunction disruptsReplicative immortalityTelomeresPOT1 mutationsDNA damageHuman cancersLonger telomeresPOT1bMaintenance mechanismsSerial transplantationA complexesSimilar mechanismMutations
2019
Chromatin‐bound cGAS is an inhibitor of DNA repair and hence accelerates genome destabilization and cell death
Jiang H, Xue X, Panda S, Kawale A, Hooy RM, Liang F, Sohn J, Sung P, Gekara NO. Chromatin‐bound cGAS is an inhibitor of DNA repair and hence accelerates genome destabilization and cell death. The EMBO Journal 2019, 38: embj2019102718. PMID: 31544964, PMCID: PMC6826206, DOI: 10.15252/embj.2019102718.Peer-Reviewed Original ResearchConceptsCyclic GMP-AMP synthaseHomologous recombinationDNA repairGenome destabilizationCell deathChromatin-binding proteinsGMP-AMP synthaseSsDNA filamentsGenome integrityGenomic stressInnate immune sensorsHR repairChromosomal rearrangementsStrand invasionRegulatory mechanismsUnknown roleCytosolic innate immune sensorsCell survivalTemplate dsDNAImmune sensorsBone marrow cellsMicronuclei generationOutcome of infectionMarrow cellsInnate immune activation