Publications de Mario Romani | EPFL Graph Search

Inhibiting de novo ceramide synthesis restores mitochondrial and protein homeostasis in muscle aging

Johan Auwerx, Xiaoxu Li, Mario Romani, Tanes Imamura de Lima, Sandra Rodriguez Lopez, Hao Li, Martin Rainer Wohlwend, Pirkka-Pekka Untamo Laurila, Ludger Jan Elzuë Goeminne, Dohyun Park

Disruption of mitochondrial function and protein homeostasis plays a central role in aging. However, how these processes interact and what governs their failure in aging remain poorly understood. Here, we showed that cer- amide biosynthesis controls the de ...

AMER ASSOC ADVANCEMENT SCIENCE2023

The exercise-induced long noncoding RNA CYTOR promotes fast-twitch myogenesis in aging

Johan Auwerx, Mario Romani, Tanes Imamura de Lima, Martin Rainer Wohlwend, Pirkka-Pekka Untamo Laurila

Skeletal muscle displays remarkable plasticity upon exercise and is also one of the organs most affected by aging. Despite robust evidence that aging is associated with loss of fast-twitch (type II) muscle fibers, the underlying mechanisms remain to be elu ...

2021

Enhancing mitochondrial quality control to fight neuromuscular degeneration in aging and disease

Mario Romani

Loss of mitochondrial function and proteostasis typify aging and age-associated degenerative disorders such as Alzheimer's disease and muscle aging. To date, no cure or preventive measure is available to manage these conditions. Alterations of cellular pro ...

EPFL2021

Phalloidin Staining of Actin Filaments for Visualization of Muscle Fibers in Caenorhabditis elegans

Johan Auwerx, Mario Romani

Advances in C. elegans research have allowed scientists to recapitulate different human disorders, from neurodegenerative diseases to muscle dysfunction, in these nematodes. Concomitantly, the interest in visualizing organs affected by these conditions has ...

BIO-PROTOCOL2021

NAD+ boosting reduces age-associated amyloidosis and restores mitochondrial homeostasis in muscle

Johan Auwerx, Mario Romani, Tanes Imamura de Lima, Hao Li, Vincenzo Sorrentino, Hongbo Zhang, Changmyung Oh

Aging is characterized by loss of proteostasis and mitochondrial homeostasis. Here, we provide bioinformatic evidence of dysregulation of mitochondrial and proteostasis pathways in muscle aging and diseases. Moreover, we show accumulation of amyloid-like d ...

2021

NAD(+) homeostasis in health and disease

Johan Auwerx, Mario Romani, Elena Katsyuba, Dina Hofer

The conceptual evolution of nicotinamide adenine dinucleotide (NAD(+)) from being seen as a simple metabolic cofactor to a pivotal cosubstrate for proteins regulating metabolism and longevity, including the sirtuin family of protein deacylases, has led to ...

2020

The RNA-Binding Protein PUM2 Impairs Mitochondrial Dynamics and Mitophagy During Aging

Johan Auwerx, Kristina Schoonjans, Bernard Schneider, Graham Knott, Davide D'Amico, Vera Monica Lemos Da Silva, Mario Romani, Vincenzo Sorrentino, Adrienne Joëlle Laurence Mottis, Hao Li

Little information is available about how post-transcriptional mechanisms regulate the aging process. Here, we show that the RNA-binding protein Pumilio2 (PUM2), which is a translation repressor, is induced upon aging and acts as a negative regulator of li ...

CELL PRESS2019

Niacin: an old lipid drug in a new NAD(+) dress

Johan Auwerx, Mario Romani, Elena Katsyuba, Dina Hofer

Niacin, the first antidyslipidemic drug, has been at the center stage of lipid research for many decades before the discovery of statins. However, to date, despite its remarkable effects on lipid profiles, the clinical outcomes of niacin treatment on cardi ...

AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC2019

Enhancing mitochondrial proteostasis reduces amyloid-beta proteotoxicity

Johan Auwerx, Davide D'Amico, Adrian Schmid, Mario Romani, Norman Lionel Moullan, Vincenzo Sorrentino, Hongbo Zhang, Francesca Potenza, Solene Rietsch

Alzheimer's disease is a common and devastating disease characterized by aggregation of the amyloid-beta peptide. However, we know relatively little about the underlying molecular mechanisms or how to treat patients with Alzheimer's disease. Here we provid ...

2017