2017
Probing the Telomere Damage Response
Rai R, Chang S. Probing the Telomere Damage Response. Methods In Molecular Biology 2017, 1587: 133-138. PMID: 28324505, DOI: 10.1007/978-1-4939-6892-3_13.Peer-Reviewed Original ResearchConceptsTelomere dysfunctionDNA damage response signalsDNA damage repair pathwaysTelomere damage responseΓ-H2AXDamage repair pathwaysCheckpoint sensorNbs1 complexReplicative attritionMre11-Rad50Shelterin componentsDamage responseTelomeric DNADysfunctional telomeresRepair pathwaysDownstream effectorsComplete deletionTelomeresDNAPathwayTRF2Chk2Chk1KinaseEffectors
2015
Monitoring the DNA Damage Response at Dysfunctional Telomeres
Rai R, Chang S. Monitoring the DNA Damage Response at Dysfunctional Telomeres. Methods In Molecular Biology 2015, 1343: 175-180. PMID: 26420717, DOI: 10.1007/978-1-4939-2963-4_14.Peer-Reviewed Original ResearchConceptsDysfunctional telomeresDNA damage sensorDNA damage responseDNA damage fociSitu hybridization approachEukaryotic chromosomesShelterin componentsDNA repeatsGenomic stabilityDDR proteinsDamage responseTelomeric DNADDR pathwaysDamage fociChromosomal endsTelomere dysfunctionDamage sensorTelomeresDNA damageHybridization approachCellular viabilityPathwayProper maintenanceChromosomesRepeats
2011
Probing the Telomere Damage Response
Rai R, Chang S. Probing the Telomere Damage Response. Methods In Molecular Biology 2011, 735: 145-150. PMID: 21461819, PMCID: PMC3690558, DOI: 10.1007/978-1-61779-092-8_14.Peer-Reviewed Original ResearchConceptsTelomere dysfunctionDNA damage response signalsDNA damage repair pathwaysTelomere damage responseΓ-H2AXDamage repair pathwaysCheckpoint sensorNbs1 complexReplicative attritionMre11-Rad50Shelterin componentsDamage responseTelomeric DNADysfunctional telomeresRepair pathwaysDownstream effectorsComplete deletionTelomeresDNAPathwayTRF2Chk2Chk1KinaseEffectors
2007
Telomere dysfunction suppresses spontaneous tumorigenesis in vivo by initiating p53‐dependent cellular senescence
Cosme-Blanco W, Shen MF, Lazar AJ, Pathak S, Lozano G, Multani AS, Chang S. Telomere dysfunction suppresses spontaneous tumorigenesis in vivo by initiating p53‐dependent cellular senescence. EMBO Reports 2007, 8: 497-503. PMID: 17396137, PMCID: PMC1866197, DOI: 10.1038/sj.embor.7400937.Peer-Reviewed Original ResearchConceptsP53-dependent cellular senescenceSpontaneous tumorigenesisCellular senescenceCellular senescence pathwaysSenescence pathwaysCell cycle arrestSkin carcinomasSenescence markersTumorigenesisMiceDysfunctional telomeresTumor suppressionTelomere dysfunctionP53ApoptosisVivoSuppressionCarcinomaDysfunctionPathwaySenescence
2005
Elevated telomere-telomere recombination in WRN-deficient, telomere dysfunctional cells promotes escape from senescence and engagement of the ALT pathway
Laud PR, Multani AS, Bailey SM, Wu L, Ma J, Kingsley C, Lebel M, Pathak S, DePinho RA, Chang S. Elevated telomere-telomere recombination in WRN-deficient, telomere dysfunctional cells promotes escape from senescence and engagement of the ALT pathway. Genes & Development 2005, 19: 2560-2570. PMID: 16264192, PMCID: PMC1276730, DOI: 10.1101/gad.1321305.Peer-Reviewed Original ResearchConceptsWerner syndromeSister chromatidsT-SCETelomere sister chromatid exchangeElevated recombination ratesActivation of ALTWRN functionAberrant recombinationGenomic instabilityALT pathwayChromosomal aberrationsChromosomal instabilityTelomeresPremature agingDysfunctional cellsTumor formationChromatidsSister chromatid exchangesPathwayChromatid exchangesRecombinationRecombination rateCellsWRNMutantsTrp53R172H and KrasG12D cooperate to promote chromosomal instability and widely metastatic pancreatic ductal adenocarcinoma in mice
Hingorani SR, Wang L, Multani AS, Combs C, Deramaudt TB, Hruban RH, Rustgi AK, Chang S, Tuveson DA. Trp53R172H and KrasG12D cooperate to promote chromosomal instability and widely metastatic pancreatic ductal adenocarcinoma in mice. Cancer Cell 2005, 7: 469-483. PMID: 15894267, DOI: 10.1016/j.ccr.2005.04.023.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCadherinsCarcinoma, Pancreatic DuctalCentrosomeChromosomal InstabilityChromosome AberrationsCytogenetic AnalysisDisease ProgressionGene ExpressionGene Expression RegulationGene RearrangementGenes, Tumor SuppressorHomeodomain ProteinsIntegrasesMiceMice, Inbred C57BLMice, Inbred StrainsMice, Mutant StrainsMice, TransgenicMutation, MissenseNeoplasm MetastasisOncogene Proteins v-erbBProto-Oncogene Proteins p21(ras)Ras ProteinsSurvival AnalysisTelomereTrans-ActivatorsTranslocation, GeneticTumor Suppressor Protein p53ConceptsPancreatic ductal adenocarcinomaTumor suppressor gene pathwaysDistinct genetic pathwaysGenetic requirementsGenetic pathwaysGenomic instabilityGene pathwaysChromosomal instabilityEndogenous expressionHuman diseasesNonreciprocal translocationsDuctal adenocarcinomaMetastatic pancreatic ductal adenocarcinomaHuman carcinomasDisease pathogenesisMouse pancreasDifferent biological behaviorPathwayMetastatic carcinomaPrimary carcinomaTreatment strategiesCarcinomaBiological behaviorDevelopment of detectionTranslocationModeling premature aging syndromes with the telomerase knockout mouse.
Chang S. Modeling premature aging syndromes with the telomerase knockout mouse. 2005, 5: 153-8. PMID: 15974868, DOI: 10.2174/1566524053586662.Peer-Reviewed Original ResearchConceptsTelomerase knockout miceMammalian agingGenomic instabilityDNA damage pathwayPremature aging syndromesCellular declineMolecular basisAging syndromesAging processDamage pathwayKnockout miceMolecular pathwaysShort telomeresHuman agingPrimate model systemMouse modelModel systemBiological mechanismsPhenotypePhysiological changesPathwayUnprecedented opportunityDeleterious effectsTelomeresMice
2004
A mouse model of Werner Syndrome: what can it tell us about aging and cancer?
Chang S. A mouse model of Werner Syndrome: what can it tell us about aging and cancer? The International Journal Of Biochemistry & Cell Biology 2004, 37: 991-999. PMID: 15743673, DOI: 10.1016/j.biocel.2004.11.007.Peer-Reviewed Original ResearchConceptsMolecular mechanismsWerner syndromePremature agingConsequent cellular responsesGene functionMammalian agingDysfunctional telomeresGenetic pathwaysReplicative senescenceTelomere dysfunctionCellular responsesGenetic platformProgeroid syndromesMolecular levelMouse modelRecent studiesAging processTelomeresSenescenceTumorigenesisPathwayMechanismAgingCancerSyndromeEndogenous oncogenic K-rasG12D stimulates proliferation and widespread neoplastic and developmental defects
Tuveson D, Shaw A, Willis N, Silver D, Jackson E, Chang S, Mercer K, Grochow R, Hock H, Crowley D, Hingorani S, Zaks T, King C, Jacobetz M, Wang L, Bronson R, Orkin S, DePinho R, Jacks T. Endogenous oncogenic K-rasG12D stimulates proliferation and widespread neoplastic and developmental defects. Cancer Cell 2004, 5: 375-387. PMID: 15093544, DOI: 10.1016/s1535-6108(04)00085-6.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCell CycleCell DivisionCell Transformation, NeoplasticCellular SenescenceCongenital AbnormalitiesCrosses, GeneticCyclin-Dependent Kinase Inhibitor p16Embryo, MammalianFemaleFibroblastsGene Expression Regulation, DevelopmentalGenes, rasIntegrasesMaleMiceMice, Inbred C57BLMice, TransgenicMutationNeoplasmsStem CellsTumor Suppressor Protein p14ARFTumor Suppressor Protein p53Viral ProteinsConceptsCanonical Ras effectorRas effectorsOncogenic RasEmbryonic developmentAbnormal cellular proliferationDevelopmental defectsRas oncogeneGenetic lesionsConditional expressionWidespread expressionK-RasG12DCellular proliferationFurther genetic abnormalitiesEnhanced proliferationOncogeneProliferationExpressionGenetic abnormalitiesEffectorsMutationsAllelesRegulationPathwayFibroblastsFrank malignancy