Publications by Dongryeol Ryu | EPFL Graph Search

Author Correction: Hypothalamic S1P/S1PR1 axis controls energy homeostasis

Correction to: Nature Communicationshttps://doi.org/10.1038/ncomms5859, published online 25 September 2014 In the original version of this Article, the Western blot images of Tubulin from the arcuate nucleus and hindbrain and the blots of S1PR1 and Tubulin ...

Springer Science and Business Media LLC2025

Machine learning-derived gut microbiome signature predicts fatty liver disease in the presence of insulin resistance

Johan Auwerx, Dongryeol Ryu

A simple predictive biomarker for fatty liver disease is required for individuals with insulin resistance. Here, we developed a supervised machine learning-based classifier for fatty liver disease using fecal 16S rDNA sequencing data. Based on the Kangbuk ...

Nature Portfolio2022

Non-genomic activation of the AKT-mTOR pathway by the mitochondrial stress response in thyroid cancer

Kristina Schoonjans, Johan Auwerx, Dongryeol Ryu

Cancer progression is associated with metabolic reprogramming and causes significant intracellular stress; however, the mechanisms that link cellular stress and growth signalling are not fully understood. Here, we identified a mechanism that couples the mi ...

2022

SIRT7 modulates the stability and activity of the renal K-Cl cotransporter KCC4 through deacetylation

Olivier Staub, Johan Auwerx, Lilia Noriega Lopez, Dongryeol Ryu

SIRT7 is a NAD(+)-dependent deacetylase that controls important aspects of metabolism, cancer, and bone formation. However, the molecular targets and functions of SIRT7 in the kidney are currently unknown. In silico analysis of kidney transcripts of the BX ...

2021

Growth differentiation factor 15 protects against the aging-mediated systemic inflammatory response in humans and mice

Johan Auwerx, Dongryeol Ryu, Jun Yong Kim, Ludger Jan Elzuë Goeminne

Mitochondrial dysfunction is associated with aging-mediated inflammatory responses, leading to metabolic deterioration, development of insulin resistance, and type 2 diabetes. Growth differentiation factor 15 (GDF15) is an important mitokine generated in r ...

2020

The NAD-Booster Nicotinamide Riboside Potently Stimulates Hematopoiesis through Increased Mitochondrial Clearance

Matthias Lütolf, Yannick Lionel Yersin, Vincent Trachsel, Bart Deplancke, Nicola Vannini, Johan Auwerx, Pedro Romero, Carlos Canto Alvarez, Martin Ehrbar, Mukul Girotra, Aurélien Laurent Jean-Charles Oggier, Dongryeol Ryu, Eija Riitta Pirinen, Olaia Maria Naveiras Torres-Quiroga, Pernille Yde Rainer, Gennady Nikitin, Vasco Ledebur de Antas de Campos, Joanna Ratajczak, Loïc Tauzin, Josefine Catharina Pedersen Tratwal, Federico Sizzano, George Coukos, Sonja Giger, Shanti Rojas-Sutterlin, Yang Li, Simone Ragusa

It has been recently shown that increased oxidative phosphorylation, as reflected by increased mitochondrial activity, together with impairment of the mitochondrial stress response, can severely compromise hematopoietic stem cell (HSC) regeneration. Here w ...

CELL PRESS2019

The mitophagy activator urolithin A is safe and induces a molecular signature of improved mitochondrial and cellular health in humans

Patrick Aebischer, Frederic Burdet, Johan Auwerx, Pénélope Andreux, Dongryeol Ryu, Anurag Singh

Urolithin A (UA) is a natural dietary, microflora-derived metabolite shown to stimulate mitophagy and improve muscle health in old animals and in preclinical models of aging(1). Here, we report the results of a first-in-human clinical trial in which we adm ...

NATURE PUBLISHING GROUP2019

De novo NAD(+) synthesis enhances mitochondrial function and improves health

Elena Katsyuba, Kristina Schoonjans, Johan Auwerx, Dongryeol Ryu, Adrienne Joëlle Laurence Mottis, Karim Laurent Gariani, Marika Olga Zietak

Nicotinamide adenine dinucleotide (NAD(+)) is a co-substrate for several enzymes, including the sirtuin family of NAD(+)-dependent protein deacylases. Beneficial effects of increased NAD(+) levels and sirtuin activation on mitochondrial homeostasis, organi ...

NATURE PUBLISHING GROUP2018

Reduced oxidative capacity in macrophages results in systemic insulin resistance

Johan Auwerx, Yoo Hoon Kim, Dongryeol Ryu, Seulgi Kang

Nature Research2018

The NAD plus Salvage Pathway Potently Stimulates Hematopoiesis through Increased Mitochondrial Clearance and Asymmetric Division

Matthias Lütolf, Yannick Lionel Yersin, Bart Deplancke, Nicola Vannini, Carlos Canto Alvarez, Martin Ehrbar, Mukul Girotra, Aurélien Laurent Jean-Charles Oggier, Dongryeol Ryu, Eija Riitta Pirinen, Olaia Maria Naveiras Torres-Quiroga, Pernille Yde Rainer, Gennady Nikitin, Vasco Ledebur de Antas de Campos, Joanna Ratajczak, Loïc Tauzin, Josefine Catharina Pedersen Tratwal, Federico Sizzano, George Coukos, Sonja Giger, Shanti Rojas-Sutterlin, Yang Li, Simone Ragusa

AMER SOC HEMATOLOGY2018

Quantifying and Localizing the Mitochondrial Proteome Across Five Tissues in A Mouse Population

Ruedi Aebersold, Johan Auwerx, Evan Graehl Williams, Dongryeol Ryu, Pooja Jha, Jiayi Lan, Jun Yong Kim, Moaraj Hasan

We have used SWATH mass spectrometry to quantify 3648 proteins across 76 proteomes collected from genetically diverse BXD mouse strains in two fractions (mitochondria and total cell) from five tissues: liver, quadriceps, heart, brain, and brown adipose (BA ...

AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC2018

PARP inhibition protects against alcoholic and non-alcoholic steatohepatitis

Johan Auwerx, Zhou Zhou, Dongryeol Ryu, Karim Laurent Gariani, Wei Wang

Background & Aims: Mitochondria) dysfunction, oxidative stress, inflammation, and metabolic reprograming are crucial contributors to hepatic injury and subsequent liver fibrosis. Poly(ADP-ribose) polymerases (PARP) and their interactions with sirtuins play ...

Elsevier Science Bv2017

Impaired SUMOylation of nuclear receptor LRH-1 promotes nonalcoholic fatty liver disease

Matthias Alexander Sokrates Stein, Kristina Schoonjans, Dongryeol Ryu, Maaike Hélène Oosterveer, Pan Xu, Xu Wang, Vera Monica Lemos Da Silva, Hadrien Charles Edouard Demagny

Hepatic steatosis is caused by metabolic imbalances that could be explained in part by an increase in de novo lipogenesis that results from increased sterol element binding protein 1 (SREBP-1) activity. The nuclear receptor liver receptor homolog 1 (LRH-1) ...

Amer Soc Clinical Investigation Inc2017

Agents and methods using thereof for the prevention and treatment of stem cells senescence

Johan Auwerx, Dongryeol Ryu, Hongbo Zhang, Keir Joe Menzies

The present invention relates to agents that prevent or reverse process of stem cell senescence. Further, the invention relates to methods and compositions useful in the prevention and/or treatment of stem senescence. ...

2017

Agents and methods using thereof for the prevention and treatment of stem cell muscle disorders

Johan Auwerx, Dongryeol Ryu, Hongbo Zhang, Keir Joe Menzies

Abstract of the invention: The present invention relates to agents that induce mitochondrial unfolded protein response (UPR mt ) in muscle stem cells and prevents or reverse process of muscle stem cell senescence. Further, the invention relates to methods ...

2017

Growth differentiation factor 15 is a myomitokine governing systemic energy homeostasis

Johan Auwerx, Dongryeol Ryu

Reduced mitochondria! electron transport chain activity promotes longevity and improves energy homeostasis via cell-autonomous and non-autonomous factors in multiple model systems. This mitohormetic effect is thought to involve the mitochondrial unfolded p ...

Rockefeller University Press2017

Inhibiting poly ADP-ribosylation increases fatty acid oxidation and protects against fatty liver disease

Elena Katsyuba, Matthias Alexander Sokrates Stein, Kristina Schoonjans, Johan Auwerx, Dongryeol Ryu, Hongbo Zhang, Keir Joe Menzies, Alessia Perino, Karim Laurent Gariani, Vera Monica Lemos Da Silva, Pooja Jha, Jun Yong Kim

Background & Aims: To date, no pharmacological therapy has been approved for non-alcoholic fatty liver disease (NAFLD). The aim of the present study was to evaluate the therapeutic potential of poly ADP-ribose polymerase (PARP) inhibitors in mouse models o ...

Elsevier Science Bv2017

NAD+ repletion improves mitochondrial and stem cell function and enhances life span in mice

Matthias Lütolf, Ruedi Aebersold, Kristina Schoonjans, Johan Auwerx, Dongryeol Ryu, Hongbo Zhang, Keir Joe Menzies, Karim Laurent Gariani, Xu Wang, Peiling Luan, Davide D'Amico

Adult stem cells (SCs) are essential for tissue maintenance and regeneration yet are susceptible to senescence during aging. We demonstrate the importance of the amount of the oxidized form of cellular nicotinamide adenine dinucleotide (NAD(+)) and its imp ...

American Association for the Advancement of Science2016

LRH-1-dependent programming of mitochondrial glutamine processing drives liver cancer

Arnaud Comment, Matthias Alexander Sokrates Stein, Kristina Schoonjans, Johan Auwerx, Norman Lionel Moullan, Dongryeol Ryu, Maaike Hélène Oosterveer, Emine Can, Pan Xu, Xu Wang, Hadrien Charles Edouard Demagny

Various tumors develop addiction to glutamine to support uncontrolled cell proliferation. Here we identify the nuclear receptor liver receptor homolog 1 (LRH-1) as a key regulator in the process of hepatic tumorigenesis through the coordination of a noncan ...

Cold Spring Harbor Laboratory2016

Urolithin A induces mitophagy and prolongs lifespan in C. elegans and increases muscle function in rodents

Patrick Aebischer, Maria del Carmen Sandi Perez, Elena Katsyuba, Johan Auwerx, Damien Sébastien Huzard, Norman Lionel Moullan, Pénélope Andreux, Evan Graehl Williams, Dongryeol Ryu, Laurent Mouchiroud, Giuseppe Lo Sasso, Pooja Jha

The biological effects of urolithins remain poorly characterized, despite wide-spread human exposure via the dietary consumption of their metabolic precursors, the ellagitannins, which are found in the pomegranate fruit, as well as in nuts and berries. We ...

2016