2019
Activation of DNA Damage Response and Cellular Senescence in Cardiac Fibroblasts Limit Cardiac Fibrosis After Myocardial Infarction
Shibamoto M, Higo T, Naito AT, Nakagawa A, Sumida T, Okada K, Sakai T, Kuramoto Y, Yamaguchi T, Ito M, Masumura Y, Higo S, Lee JK, Hikoso S, Komuro I, Sakata Y. Activation of DNA Damage Response and Cellular Senescence in Cardiac Fibroblasts Limit Cardiac Fibrosis After Myocardial Infarction. International Heart Journal 2019, 60: 944-957. PMID: 31257341, DOI: 10.1536/ihj.18-701.Peer-Reviewed Original ResearchConceptsCellular senescenceDNA damage response systemDNA damage responseCardiac fibroblastsDDR activationDamage responseMolecular mechanismsSenescenceGene deletionJuxtacrine mannerProliferation of CFsCardiac fibrosisCF proliferationProliferationCardiac remodelingActivationTissue fibrosisRemodelingImportant roleTherapeutic strategiesRoleRecent reportsDeletionRegulationATM gene deletion
2017
DNA single-strand break-induced DNA damage response causes heart failure
Higo T, Naito AT, Sumida T, Shibamoto M, Okada K, Nomura S, Nakagawa A, Yamaguchi T, Sakai T, Hashimoto A, Kuramoto Y, Ito M, Hikoso S, Akazawa H, Lee JK, Shiojima I, McKinnon PJ, Sakata Y, Komuro I. DNA single-strand break-induced DNA damage response causes heart failure. Nature Communications 2017, 8: 15104. PMID: 28436431, PMCID: PMC5413978, DOI: 10.1038/ncomms15104.Peer-Reviewed Original ResearchConceptsPressure overload-induced heart failureOverload-induced heart failureHeart failureSingle-strand breaksNF-κB signalingNew therapeutic strategiesSSB accumulationDDR activationInflammatory cytokinesTherapeutic strategiesUnrepaired single-strand breaksDNA damageDNA single-strand breaksCausative roleDNA damage responseGenetic deletionPathogenesisActivationPivotal roleFailureDamage responseHeartCritical roleCytokinesMice
2010
Promotion of CHIP-Mediated p53 Degradation Protects the Heart From Ischemic Injury
Naito AT, Okada S, Minamino T, Iwanaga K, Liu ML, Sumida T, Nomura S, Sahara N, Mizoroki T, Takashima A, Akazawa H, Nagai T, Shiojima I, Komuro I. Promotion of CHIP-Mediated p53 Degradation Protects the Heart From Ischemic Injury. Circulation Research 2010, 106: 1692-1702. PMID: 20413784, DOI: 10.1161/circresaha.109.214346.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAnimals, NewbornApoptosisBase SequenceBenzoquinonesCell HypoxiaChlorocebus aethiopsCOS CellsDisease Models, AnimalGenetic TherapyHSP90 Heat-Shock ProteinsHumansHypoxia-Inducible Factor 1, alpha SubunitLactams, MacrocyclicMaleMiceMice, Inbred C57BLMice, KnockoutMolecular Sequence DataMutationMyocardial InfarctionMyocytes, CardiacPromoter Regions, GeneticProteasome Endopeptidase ComplexProtein Processing, Post-TranslationalRatsRats, WistarRNA InterferenceTranscriptional ActivationTumor Suppressor Protein p53UbiquitinationUbiquitin-Protein LigasesVentricular RemodelingConceptsMyocardial infarctionP53 accumulationCardiomyocyte apoptosisCoronary heart diseaseNumber of patientsNovel therapeutic strategiesP53 degradationApoptosis of cardiomyocytesHeat shock proteinsHeart failureIschemic injuryCardioprotective effectsVentricular remodelingCHIP overexpressionHeart diseaseInfarctionTherapeutic strategiesProteasomal degradationMyocardial apoptosisAmount of p53Molecular mechanismsShock proteinsP53 antagonistP53 accumulatesProtein levels