Malattie genetiche della forma dei mitocondri: approcci integrati per comprenderne la patogenesi e definirne strategie terapeutiche
- 5 Anni 2012/2017
- 317.391€ Totale Fondi
L’atrofia ottica dominante è una malattia genetica caratterizzata dalla progressiva perdita della vista, a partire dall’età prescolare, causata dalla morte delle cellule gangliari della retina, i neuroni che trasmettono le immagini dal nostro occhio alla parte del cervello deputata ad interpretarle. Questa morte avviene probabilmente a causa di un eccesso del normale processo di “suicidio” cellulare che chiamiamo apoptosi e che serve al naturale ricambio di tutte le cellule del nostro corpo. Per mettere a punto dei farmaci che consentano di bloccare questo processo, dobbiamo comprenderne i meccanismi. I mitocondri, le centrali energetiche della cellula, sono essenziali per fare partire il processo dell’apoptosi ed il loro coinvolgimento nella morte cellulare programmata è accompagnato da cambiamenti nella loro forma. Alcune proteine controllano la forma dei mitocondri e mutazioni a loro carico sono associate a patologie genetiche che comprendono l’atrofia ottica dominante, la malattia di Charcot-Marie-Tooth 2A2, ed altre malattie genetiche. Noi ci riproponiamo di studiare come queste proteine siano regolate, di chiarire il loro ruolo nella vita e nella morte delle cellule, di esporare se possano essere un bersaglio per farmaci che interferiscano con la morte delle cellule e quindi che possano prevenire il lento degenerare verso la cecità nell’atrofia ottica dominante o la paralisi nella Charcot-Marie-Tooth 2A2.
Pubblicazioni Scientifiche
- AGING CELL
Hyperactivation of Nrf2 increases stress tolerance at the cost of aging acceleration due to metabolic deregulation
- ANNUAL REVIEW OF PHYSIOLOGY, VOL 78
Mito-Morphosis: Mitochondrial Fusion, Fission, and Cristae Remodeling as Key Mediators of Cellular Function
- AUTOPHAGY
Proteasome dysfunction induces excessive proteome instability and loss of mitostasis that can be mitigated by enhancing mitochondrial fusion or autophagy
- BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS
DRP1-dependent apoptotic mitochondrial fission occurs independently of SAX, BAK and APAF1 to amplify cell death by BID and oxidative stress
- BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH
Mitochondrial morphology in mitophagy and macroautophagy
- BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH
Sirtuin 5 protects mitochondria from fragmentation and degradation during starvation
- CELL DEATH & DISEASE
Cofilin1-dependent actin dynamics control DRP1-mediated mitochondrial fission
- CELL DEATH AND DIFFERENTIATION
Optic atrophy 1 mediates mitochondria remodeling and dopaminergic neurodegeneration linked to complex I deficiency
- CELL DEATH AND DIFFERENTIATION
When numbers matters: mitochondrial DNA and gliomagenesis
- CELL DEATH AND DIFFERENTIATION
Synaptic dysfunction, memory deficits and hippocampal atrophy due to ablation of mitochondrial fission in adult forebrain neurons
- CELL DEATH AND DIFFERENTIATION
SPLICS: a split green fluorescent protein-based contact site sensor for narrow and wide heterotypic organelle juxtaposition
- CELL METABOLISM
Developmental and Tumor Angiogenesis Requires the Mitochondria-Shaping Protein Opa1
- CELL REPORTS
Transcriptomic Analysis of Single Isolated Myofibers Identifies miR-27a-3p and miR-142-3p as Regulators of Metabolism in Skeletal Muscle
- EUROPEAN JOURNAL OF CLINICAL INVESTIGATION
Keeping mitochondria in shape: a matter of life and death
- JOURNAL OF CELL BIOLOGY
Reduction of endoplasmic reticulum stress attenuates the defects caused by Drosophila mitofusin depletion
- LIFE SCIENCE ALLIANCE
Inhibition of the deubiquitinase USP8 corrects a Drosophila PINK1 model of mitochondria dysfunction
- MOLECULAR AND CELLULAR NEUROSCIENCE
D. melanogaster, mitochondria and neurodegeneration: small model organism, big discoveries
- MOLECULAR CELL
Mitofusins, from Mitochondria to Metabolism
- NATURE COMMUNICATIONS
Coming together to define membrane contact sites
- NATURE MEDICINE
Cardioprotection and lifespan extension by the natural polyamine spermidine
- NEUROBIOLOGY OF DISEASE
Silencing of the Charcot-Marie-Tooth disease-associated gene GDAP1 induces abnormal mitochondrial distribution and affects Ca2+ homeostasis by reducing store-operated Ca2+ entry
- PLOS ONE
Mitochondrial Dynamics Protein Drp1 Is Overexpressed in Oncocytic Thyroid Tumors and Regulates Cancer Cell Migration
- PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Critical reappraisal confirms that Mitofusin 2 is an endoplasmic reticulum-mitochondria tether
- PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Does Mitofusin 2 tether or separate endoplasmic reticulum and mitochondria? reply
- REDOX BIOLOGY
Functional wiring of proteostatic and mitostatic modules ensures transient organismal survival during imbalanced mitochondrial dynamics
- SCIENCE SIGNALING
O ROM(e)O1, ROM(e)O1, Wherefore Art Thou ROM(e)O1?
- SCIENTIFIC REPORTS
Interplay between hepatic mitochondria-associated membranes, lipid metabolism and caveolin-1 in mice
- SCIENTIFIC REPORTS
The energy disruptor metformin targets mitochondrial integrity via modification of calcium flux in cancer cells
- SCIENTIFIC REPORTS
Milder degenerative effects of Carfilzomib &ITvs&IT. Bortezomib in the &ITDrosophila&IT model: a link to clinical adverse events
- THROMBOSIS AND HAEMOSTASIS
Akt protects the heart against ischaemia-reperfusion injury by modulating mitochondrial morphology
- TRENDS IN BIOCHEMICAL SCIENCES
Mitochondrial Cristae: Where Beauty Meets Functionality