Matrice mitochondriale

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Publications associées (31)

Mitochondrial copper depletion suppresses triple-negative breast cancer in mice

Elena Goun, Arkadiy Bazhin, Min Chen, Ji Qi

Depletion of mitochondrial copper, which shifts metabolism from respiration to glycolysis and reduces energy production, is known to be effective against cancer types that depend on oxidative phosphorylation. However, existing copper chelators are too toxi ...

NATURE RESEARCH2021

Mitochondrial gene signature in the prefrontal cortex for differential susceptibility to chronic stress

Rolf Gruetter, Maria del Carmen Sandi Perez, Bart Deplancke, Jocelin Grosse, Daniel Alpern, Julie Marie Russeil, Meltem Weger, Antoine Timothée Cherix, Sriparna Ghosal

Mitochondrial dysfunction was highlighted as a crucial vulnerability factor for the development of depression. However, systemic studies assessing stress-induced changes in mitochondria-associated genes in brain regions relevant to depression symptomatolog ...

2020

Augmented mitochondrial energy metabolism is an early response to chronic glucose stress in human pancreatic beta cells

Loïc Dayon, Andreas Wiederkehr, Sofia Moco, Isabelle Chareyron

Aims/hypothesis In islets from individuals with type 2 diabetes and in islets exposed to chronic elevated glucose, mitochondrial energy metabolism is impaired. Here, we studied early metabolic changes and mitochondrial adaptations in human beta cells durin ...

2020

The social nature of mitochondria: Implications for human health

Maria del Carmen Sandi Perez

Sociality has profound evolutionary roots and is observed from unicellular organisms to multicellular animals. In line with the view that social principles apply across levels of biological complexity, a growing body of data highlights the remarkable socia ...

2021

Impact of aerobic exercise type on blood flow, muscle energy metabolism, and mitochondrial biogenesis in experimental lower extremity artery disease

Rolf Gruetter, Carole Poitry-Yamate

Exercise training (ET) is recommended for lower extremity artery disease (LEAD) management. However, there is still little information on the hemodynamic and metabolic adaptations by skeletal muscle with ET. We examined whether hindlimb perfusion/vasculari ...

Nature Research2020

Nicotinamide riboside supplementation alters body composition and skeletal muscle acetylcarnitine concentrations in healthy obese humans

Johan Auwerx, Richardus Houtkooper

Background: Nicotinamide riboside (NR) is an NAD(+) precursor that boosts cellular NAD(+) concentrations. Preclinical studies have shown profound metabolic health effects after NR supplementation. ...

OXFORD UNIV PRESS2020

MicroRNA-382 silencing induces a mitonuclear protein imbalance and activates the mitochondrial unfolded protein response in muscle cells

Johan Auwerx, Pénélope Andreux, Xu Wang, Norman Lionel Moullan

Proper mitochondrial function plays a central role in cellular metabolism. Various diseases as well as aging are associated with diminished mitochondrial function. Previously, we identified 19 miRNAs putatively involved in the regulation of mitochondrial m ...

2019

Role of metabolism and mitochondria during glucose sensing and glucose-induced dysfunction in human pancreatic beta-cells

Isabelle Chareyron

Glucose sensing and regulation of insulin secretion are the two main functions performed by the pancreatic beta-cell. Together these processes contribute to the tight control of blood glucose in our body. Compromising the ability of the beta-cells to prope ...

EPFL2019

Characterization of Coenzyme Q Biosynthesis Proteins through Integrative Modeling at the Protein-Membrane Interface

Deniz Aydin

Integral and peripheral membrane proteins account for one-third of the human proteome, and they are estimated to represent the target for over 50% of modern medicinal drugs. Despite their central role in medicine, the complex, heterogeneous and dynamic nat ...

EPFL2019

Measurement of Mitochondrial Mass and Membrane Potential in Hematopoietic Stem Cells and T-cells by Flow Cytometry

Olaia Maria Naveiras Torres-Quiroga, Mukul Girotra, George Coukos, Nicola Vannini, Alexandre Harari

A fine balance of quiescence, self-renewal, and differentiation is key to preserve the hematopoietic stem cell (HSC) pool and maintain lifelong production of all mature blood cells. In recent years cellular metabolism has emerged as a crucial regulator of ...

2019

Mitochondrial oxidative capacity and NAD(+) biosynthesis are reduced in human sarcopenia across ethnicities

Patrick Descombes, Tanja Sonntag, Sylviane Métairon, Sonia Karaz, Sofia Moco, Lei Feng

The causes of impaired skeletal muscle mass and strength during aging are well-studied in healthy populations. Less is known on pathological age-related muscle wasting and weakness termed sarcopenia, which directly impacts physical autonomy and survival. H ...

Springer2019

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