Definizione dei meccanismi molecolari della perdita di massa muscolare. Identificazione di nuovi target terapeutici per bloccare la degenerazione muscolare
- 5 Anni 2010/2015
- 610.000€ Totale Fondi
Le patologie muscolari genetiche sono caratterizzate da una progressiva perdita di massa muscolare che culmina con l'insufficienza funzionale dei muscoli. La terapia genica e cellulare sarebbero la cura per tali patologie tuttavia ci sono seri problemi che ne ostacolano l'utilizzo in campo clinico-terapeutico. Un approccio alternativo è quello di ridurre la degenerazione e la perdita di massa muscolare e di favorire la rigenerazione e la ricostruzione dei muscoli distrofici. Questi due processi sono regolati da vie di segnale intracellulare specifiche, e solo una loro dettagliata descrizione ci permetterebbe di sviluppare nuovi farmaci. Perciò è giustificato studiare i segnali che regolano la perdita di massa muscolare. Il nostro lavoro è proprio focalizzato su questo obiettivo. Abbiamo già identificato che i fattori trascrizionali FoxO e Smad regolano una serie di proteine che fanno perdere massa muscolare e che, invece, il fattore JunB promuove la crescita muscolare. Inoltre abbiamo dimostrato che il sistema autofagico, se alterato, causa una progressiva degenerazione della cellula muscolare. Quindi gli obiettivi del progetto sono:i) identificare i geni che controllano la crescita della massa muscolare, ii) capire come il sistema autofagico mantiene integra la cellula muscolare. Userei diversi approcci molecolari atti ad alterare queste vie di segnale con l'obiettivo di identificarne i componenti critici. Questi risultati porterebbero allo sviluppo di nuovi farmaci o a motivare l'uso di terapie già adoperate in campo clinico per la cura delle patologie muscolari degenerative.
Pubblicazioni Scientifiche
- 2012 NATURE CELL BIOLOGY
FOXOphagy path to inducing stress resistance and cell survival
- 2014 JOURNAL OF PHYSIOLOGY-LONDON
PGC1-alpha over-expression prevents metabolic alterations and soleus muscle atrophy in hindlimb unloaded mice
- 2014 AUTOPHAGY
Autophagy is not required to sustain exercise and PRKAA1/AMPK activity but is important to prevent mitochondrial damage during physical activity
- 2013 JOURNAL OF APPLIED PHYSIOLOGY
Role of autophagy in COPD skeletal muscle dysfunction
- 2010 MOLECULAR AND CELLULAR BIOLOGY
Cellular Prion Protein Promotes Regeneration of Adult Muscle Tissue
- 2014 CELL REPORTS
Autophagy Impairment in Muscle Induces Neuromuscular Junction Degeneration and Precocious Aging
- 2013 INTERNATIONAL JOURNAL OF SPORTS MEDICINE
Food Restriction Reverses the Hyper-Muscular Phenotype and Force Generation Capacity Deficit of the Myostatin Null Mouse
- 2010 CURRENT HYPERTENSION REPORTS
Mitochondrial Biogenesis and Fragmentation as Regulators of Muscle Protein Degradation
- 2015 BIOGERONTOLOGY
Differential expression of perilipin 2 and 5 in human skeletal muscle during aging and their association with atrophy-related genes
- 2015 JOURNAL OF PHYSIOLOGY-LONDON
The role of alterations in mitochondrial dynamics and PGC-1 alpha over-expression in fast muscle atrophy following hindlimb unloading
- 2010 NATURE MEDICINE
Autophagy is defective in collagen VI muscular dystrophies, and its reactivation rescues myofiber degeneration
- 2015 NATURE COMMUNICATIONS
Regulation of autophagy and the ubiquitin-proteasome system by the FoxO transcriptional network during muscle atrophy
- 2015 BONE
BMPs and the muscle-bone connection
- 2014 FREE RADICAL BIOLOGY AND MEDICINE
Regulation and involvement of the ubiquitin ligases in muscle atrophy
- 2014 PLOS ONE
Oxidative Damage and Autophagy in the Human Trabecular Meshwork as Related with Ageing
- 2015 NEUROPATHOLOGY AND APPLIED NEUROBIOLOGY
Impaired autophagy affects acid alpha-glucosidase processing and enzyme replacement therapy efficacy in late-onset glycogen storage disease type II
- 2009 FASEB JOURNAL
Inducible activation of Akt increases skeletal muscle mass and force without satellite cell activation
- 2015 NATURE CELL BIOLOGY
Lysosomal calcium signalling regulates autophagy through calcineurin and TFEB
- 2011 AUTOPHAGY
Autophagy induction rescues muscular dystrophy
- 2014 FRONT AGING NEUROSCI
Aggresome-autophagy involvement in a sarcopenic patient with rigid spine syndrome and a p.C15OR mutation in FHL1 gene
- 2014 JOURNAL OF CLINICAL INVESTIGATION
Autophagy-regulating TP53INP2 mediates muscle wasting and is repressed in diabetes
- 2014 PLOS ONE
Haptoglobin Is Required to Prevent Oxidative Stress and Muscle Atrophy
- 2013 FASEB JOURNAL
Intracellular signaling in ER stress-induced autophagy in skeletal muscle cells
- 2013 NATURE GENETICS
BMP signaling controls muscle mass
- 2015 BIOGERONTOLOGY
Differential expression of perilipin 2 and 5 in human skeletal muscle during aging and their association with atrophy-related genes (vol 16, pg 329, 2015)
- 2010 EMBO JOURNAL
Mitochondrial fission and remodelling contributes to muscle atrophy
- 2013 AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE
Autophagy in Locomotor Muscles of Patients with Chronic Obstructive Pulmonary Disease
- 2014 JOURNAL OF BIOLOGICAL CHEMISTRY
Involvement of MicroRNAs in the Regulation of Muscle Wasting during Catabolic Conditions
- 2010 FEBS LETTERS
Autophagy in skeletal muscle
- 2014 JOURNAL OF MOLECULAR MEDICINE-JMM
Skeletal muscle, autophagy, and physical activity: the m,nage A trois of metabolic regulation in health and disease
- 2017 CELL METABOLISM
Transcription Factor EB Controls Metabolic Flexibility During Exercise
- 2013 BIOGERONTOLOGY
Signalling pathways regulating muscle mass in ageing skeletal muscle. The role of the IGF1-Akt-mTOR-FoxO pathway
- 2010 CELL DEATH AND DIFFERENTIATION
Normal myogenesis and increased apoptosis in myotonic dystrophy type-1 muscle cells
- 2012 PLOS ONE
Autophagy and Skeletal Muscles in Sepsis
- 2012 AMERICAN JOURNAL OF PHYSIOLOGY-CELL PHYSIOLOGY
Posttranslational modifications control FoxO3 activity during denervation
- 2015 CURRENT OPINION IN CLINICAL NUTRITION AND METABOLIC CARE
Bone and morphogenetic protein signalling and muscle mass
- 2010 JOURNAL OF CELL BIOLOGY
JunB transcription factor maintains skeletal muscle mass and promotes hypertrophy
- 2014 SKELETAL MUSCLE
Deficient nitric oxide signalling impairs skeletal muscle growth and performance: involvement of mitochondrial dysregulation
- 2011 CURRENT OPINION IN CLINICAL NUTRITION AND METABOLIC CARE
New findings of lysosomal proteolysis in skeletal muscle
- 2013 NATURE GENETICS
BMP signaling controls muscle mass