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RESEARCH PRODUCT
Inhibition of DNA damage response at telomeres improves the detrimental phenotypes of Hutchinson–Gilford Progeria Syndrome
Giovanna LattanziFabrizio D'adda Di FagagnaPeh Fern OngCorey Winston Jones-weinertOliver DreesenClaudio TripodoAgustin Sola-carvajalMaria ErikssonFrancesca RossielloEmelie Wallén ArztGwladys RevêchonValeria CancilaJulio Aguadosubject
0301 basic medicineGenome instabilityRNA UntranslatedDNA RepairGeneral Physics and AstronomyCellular homeostasisAntisense oligonucleotide therapyMice0302 clinical medicineProgeriaHomeostasislcsh:ScienceCellular SenescenceSkinProgeriaMultidisciplinaryintegumentary systemQTelomereProgerinLamin Type A3. Good healthCell biologyTelomeresPhenotypePremature agingcongenital hereditary and neonatal diseases and abnormalitiesDNA repairScienceDouble-strand DNA breaksBiologySettore MED/08 - Anatomia PatologicaGeneral Biochemistry Genetics and Molecular BiologyArticleCell Line03 medical and health sciencesmedicineDNA damage Hutchinson-Gilford Progeria SyndromeAnimalsCell Proliferationnutritional and metabolic diseasesGeneral ChemistryOligonucleotides Antisensemedicine.diseaseTelomereDisease Models Animal030104 developmental biologyMutationlcsh:Q030217 neurology & neurosurgeryLaminDNA Damagedescription
Hutchinson–Gilford progeria syndrome (HGPS) is a genetic disorder characterized by premature aging features. Cells from HGPS patients express progerin, a truncated form of Lamin A, which perturbs cellular homeostasis leading to nuclear shape alterations, genome instability, heterochromatin loss, telomere dysfunction and premature entry into cellular senescence. Recently, we reported that telomere dysfunction induces the transcription of telomeric non-coding RNAs (tncRNAs) which control the DNA damage response (DDR) at dysfunctional telomeres. Here we show that progerin-induced telomere dysfunction induces the transcription of tncRNAs. Their functional inhibition by sequence-specific telomeric antisense oligonucleotides (tASOs) prevents full DDR activation and premature cellular senescence in various HGPS cell systems, including HGPS patient fibroblasts. We also show in vivo that tASO treatment significantly enhances skin homeostasis and lifespan in a transgenic HGPS mouse model. In summary, our results demonstrate an important role for telomeric DDR activation in HGPS progeroid detrimental phenotypes in vitro and in vivo.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-11-01 | Nature Communications |