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Concept

Membrane mitochondriale interne

Publications associées (25)

Unraveling mitochondrial dynamics: exploring asymmetries and function through advanced microscopy

Julius Hans Bernd Winter

Still displaying characteristics of their bacterial origin, such as autonomous division, motility, and their own genome, mitochondria remain an elusive component of modern eukaryotes. They produce most of the cell's energy in the form of adenosine triphosp ...

EPFL2024

In situ architecture of Opa1-dependent mitochondrial cristae remodeling

Juan Cruz Landoni Martin

Cristae membrane state plays a central role in regulating mitochondrial function and cellular metabolism. The protein Optic atrophy 1 (Opa1) is an important crista remodeler that exists as two forms in the mitochondrion, a membrane-anchored long form (l-Op ...

Springernature2024

Mitochondrial matrix protein LETMD1 maintains thermogenic capacity of brown adipose tissue in male mice

Johan Auwerx, Jun Yong Kim, Maroun Bou Sleiman, Xiaoxu Li

Brown adipose tissue (BAT) has abundant mitochondria with the unique capability of generating heat via uncoupled respiration. Here, Park et al. identify LETMD1 as a mitochondrial matrix protein enriched in brown adipose tissue (BAT) and reveal a crucial ro ...

Nature Portfolio2023

Metabolic dependencies of metastasis-initiating cells in breast cancer

Candice Megan T Young

Metastasis is the process by which cancer cells from the primary tumor travel through the blood stream to generate a secondary tumor site in a distant organ. Although very few cells are able to make this journey, the resulting effects are dire since most c ...

EPFL2023

Dissecting the role of the mitochondrial carrier SLC25A47

Nadia Bresciani

Transporters of the SLC25 mitochondrial carrier superfamily bridge cytoplasmic and mitochondrial metabolism by channeling metabolites across mitochondrial membranes and are pivotal for metabolic homeostasis. Despite their physiological relevance as gatekee ...

EPFL2022

Fatal attraction-The role of hypoxia when alpha-synuclein gets intimate with mitochondria

Hilal Lashuel, Grégoire Millet, Johannes Burtscher, Muhammed Muazzam Kamil Syed

Alpha-synuclein aggregation and mitochondrial dysfunction are main pathological hallmarks of Parkinson's disease (PD) and several other neurodegenerative diseases, collectively known as synucleinopathies. However, increasing evidence suggests that they may ...

ELSEVIER SCIENCE INC2021

Organisation and dynamics of mitochondria and their RNA

Timo Henry René Rey

The organisation of molecules into dynamic cells, and collaboration of many of those cells over a billion years led to the evolution of human life. During the last century, biologists then began to unravel the marvels of cellular organisation with ever inc ...

EPFL2021

Stimulation and homogenization of the protoporphyrin IX endogenous production by photobiomodulation to increase the potency of photodynamic therapy

Georges Wagnières, Jaroslava Joniová, Emmanuel Louis Arthur Gerelli, Cyrus Kazemiraad

Protoporphyrin IX (PpIX) is produced in the mitochondria and used as fluorescent contrast agent or photosensitizer after exogenous 5-aminolevulinic acid (ALA) delivery in cancer photodynamic detection and therapy (PDT). Although routinely used in the clini ...

ELSEVIER SCIENCE SA2021

Late post‐natal neurometabolic development in healthy male rats using 1 H and 31 P Magnetic Resonance Spectroscopy

Rolf Gruetter, Cristina Ramona Cudalbu Moldovan, Veronika Rackayová, Guillaume Donati, Dunja Simicic

Brain metabolism evolves rapidly during early post‐natal development in the rat. While changes in amino acids, energy metabolites, antioxidants or metabolites involved in phospholipid metabolism have been reported in the early stages, neurometabolic change ...

2021

Brain NAD Is Associated With ATP Energy Production and Membrane Phospholipid Turnover in Humans

Rolf Gruetter, Lijing Xin, Özlem Ipek, Maya Shevlyakova

The brain requires a large amount of energy, mostly derived from the metabolism of glucose, which decreases substantially with age and neurological diseases. While mounting evidence in model organisms illustrates the central role of brain nicotinamide aden ...

FRONTIERS MEDIA SA2020

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

Structure of a D2 dopamine receptor-G-protein complex in a lipid membrane

Patrick Daniel Barth, Mahdi Hijazi

The D2 dopamine receptor (DRD2) is a therapeutic target for Parkinson's disease(1)and antipsychotic drugs(2). DRD2 is activated by the endogenous neurotransmitter dopamine and synthetic agonist drugs such as bromocriptine(3), leading to stimulation of G(i) ...

NATURE PUBLISHING GROUP2020

Structure of the mitochondrial import gate reveals distinct preprotein paths

Marilena Wischnewski

The translocase of the outer mitochondrial membrane (TOM) is the main entry gate for proteins(1-4). Here we use cryo-electron microscopy to report the structure of the yeast TOM core complex(5-9) at 3.8-angstrom resolution. The structure reveals the high-r ...

2019

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

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

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

Endogenous nicotinamide riboside metabolism protects against diet-induced liver damage

Carlos Canto Alvarez, Joanna Ratajczak, Miriam Valera Alberni

Supplementation with the NAD(+) precursor nicotinamide riboside (NR) ameliorates and prevents a broad array of metabolic and aging disorders in mice. However, little is known about the physiological role of endogenous NR metabolism. We have previously show ...

Nature Research2019

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

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

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

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

Labor division in engineered cross-kingdom consortia: Consolidated bioprocessing of lignocellulosic biomass to carboxylic acids

Robert Lawrence Shahab

Lignocellulose is a renewable source of fixed carbon and a promising substrate for the production of chemicals and fuels in second generation biorefineries. In this thesis, we engineered artificial microbial consortia for consolidated bioprocessing (CBP) o ...

EPFL2019

Novel tools to dissect stem cell metabolism at single cell level

Gennady Nikitin

Hematopoietic stem cells (HSC) are responsible for the life-long maintenance of our blood system. Their long-term capacity to both self-renew and differentiate and the ability to efficiently â homeâ to their bone marrow niches when injected in the blood ...

EPFL2018

Novel probes for the non-invasive bioluminescence imaging of mitochondrial membrane potential and dipeptidylpeptidase-4 activity in living animals

Arkadiy Bazhin

Current thesis summarizes the work on development of novel bioluminescent probes for measurement of activity of dipeptidylpep-tidase-4 (DPP-4) and for quantification of mitochondrial membrane potential (MMP). DPP-4 enzyme plays critical role in develop-men ...

EPFL2018