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Richardus Houtkooper

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Related publications (28)

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Tetracycline Antibiotics Impair Mitochondrial Function and Its Experimental Use Confounds Research

Johan Auwerx, Laurent Mouchiroud, Richardus Houtkooper

Tetracyclines, a class of antibiotics that target bacterial translation, are commonly used in research for inducible gene expression using Tet-ON/Tet-OFF systems. However, such tetracycline-inducible systems carry a risk. Given that mitochondria have a "ba ...

American Association for Cancer Research2015

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

Reduced ech-6 expression attenuates fat-induced lifespan shortening in C. elegans

Richardus Houtkooper, Yan Liu, Wen Gao

Deregulated energy homeostasis represents a hallmark of aging and results from complex gene-by-environment interactions. Here, we discovered that reducing the expression of the gene ech-6 encoding enoyl-CoA hydratase remitted fat diet-induced deleterious e ...

Nature Portfolio2022

Calorie Restriction-like Effects of 30 Days of Resveratrol Supplementation on Energy Metabolism and Metabolic Profile in Obese Humans

Johan Auwerx, Richardus Houtkooper, Dongryeol Ryu

Resveratrol is a natural compound that affects energy metabolism and mitochondrial function and serves as a calorie restriction mimetic, at least in animal models of obesity. Here, we treated 11 healthy, obese men with placebo and 150 mg/day resveratrol (r ...

Cell Press2011

A method to identify and validate mitochondrial modulators using mammalian cells and the worm C-elegans

Johan Auwerx, Laurent Mouchiroud, Richardus Houtkooper, Norman Lionel Moullan, Pénélope Andreux, Adrienne Joëlle Laurence Mottis, Xu Wang, Virginija Jovaisaite

Mitochondria are semi-autonomous organelles regulated by a complex network of proteins that are vital for many cellular functions. Because mitochondrial modulators can impact many aspects of cellular homeostasis, their identification and validation has pro ...

Nature Publishing Group2014

Mfn1 Deficiency in the Liver Protects Against Diet-Induced Insulin Resistance and Enhances the Hypoglycemic Effect of Metformin

Carlos Canto Alvarez, Richardus Houtkooper, Patrick Descombes, Joanna Ratajczak, Catherine Maclachlan, Wen Gao

Mitochondrial function can be influenced by mitochondrial shape and connectivity with other cellular organelles through fusion and fission processes. Disturbances in mitochondrial architecture and mitochondrial fusion related genes are observed in situatio ...

American Diabetes Association2016

Type 5 adenylyl cyclase disruption leads to enhanced exercise performance

Johan Auwerx, Laurent Mouchiroud, Richardus Houtkooper, Jie Zhang

The most important physiological mechanism mediating enhanced exercise performance is increased sympathetic, beta adrenergic receptor (beta-AR), and adenylyl cyclase (AC) activity. This is the first report of decreased AC activity mediating increased exerc ...

Wiley-Blackwell2015

The enigmatic role of tafazzin in cardiolipin metabolism

Richardus Houtkooper

The mitochondrial phospholipid cardiolipin plays an important role in cellular metabolism as exemplified by its involvement in mitochondrial energy production and apoptosis. Following its biosynthesis, cardiolipin is actively remodeled to achieve its final ...

2009

The mouse metallomic landscape of aging and metabolism

Johan Auwerx, Richardus Houtkooper, Pooja Jha, Jean-David Horacio Morel, Ludger Jan Elzuë Goeminne, Evan Graehl Williams

The metallome is crucial for normal cell functioning but remains largely overlooked in mammals. Here the authors analyze the metallome and copper and zinc isotope compositions in aging mice and show networks of interactions that are organ-specific, age-dep ...

Nature Research2022

Cardiac and Skeletal Muscle Defects in a Mouse Model of Human Barth Syndrome

Richardus Houtkooper

Barth syndrome is an X-linked genetic disorder caused by mutations in the tafazzin (taz) gene and characterized by dilated cardiomyopathy, exercise intolerance, chronic fatigue, delayed growth, and neutropenia. Tafazzin is a mitochondrial transacylase requ ...

2011

Tetracyclines Disturb Mitochondrial Function across Eukaryotic Models: A Call for Caution in Biomedical Research

Johan Auwerx, Bart Deplancke, Laurent Mouchiroud, Richardus Houtkooper, Evan Graehl Williams, Dongryeol Ryu, Norman Lionel Moullan, Adrienne Joëlle Laurence Mottis, Xu Wang, Michael Vincent Frochaux, Virginija Jovaisaite

In recent years, tetracyclines, such as doxycycline, have become broadly used to control gene expression by virtue of the Tet-on/Tet-off systems. However, the wide range of direct effects of tetracycline use has not been fully appreciated. We show here tha ...

Elsevier2015

The dynamics of cardiolipin synthesis post-mitochondrial fusion

Richardus Houtkooper

Alteration in mitochondrial fusion may regulate mitochondrial metabolism. Since the phospholipid cardiolipin (CL) is required for function of the mitochondrial respiratory chain, we examined the dynamics of CL synthesis in growing Hela cells immediately af ...

2010

Metabolic Networks of Longevity

Johan Auwerx, Richardus Houtkooper

Molecular and cellular networks implicated in aging depend on a multitude of proteins that collectively mount adaptive and contingent metabolic responses to environmental challenges. Here, we discuss the intimate links between metabolic regulation and long ...

2010

Mitonuclear protein imbalance as a conserved longevity mechanism

Johan Auwerx, Graham Knott, Laurent Mouchiroud, Richardus Houtkooper, Dongryeol Ryu, Elena Katsyuba, Norman Lionel Moullan

Longevity is regulated by a network of closely linked metabolic systems. We used a combination of mouse population genetics and RNA interference in Caenorhabditis elegans to identify mitochondrial ribosomal protein S5 (Mrps5) and other mitochondrial riboso ...

Nature Publishing Group2013

A reduced form of nicotinamide riboside defines a new path for NAD(+) biosynthesis and acts as an orally bioavailable NAD(+) precursor

Richardus Houtkooper, Carlos Canto Alvarez

Objective: A decay in intracellular NAD(+) levels is one of the hallmarks of physiological decline in normal tissue functions. Accordingly, dietary supplementation with NAD(+) precursors can prevent, alleviate, or even reverse multiple metabolic complicati ...

2019

The Secret Life of NAD+: An Old Metabolite Controlling New Metabolic Signaling Pathways

Johan Auwerx, Carlos Canto Alvarez, Richardus Houtkooper

A century after the identification of a coenzymatic activity for NAD(+), NAD(+) metabolism has come into the spotlight again due to the potential therapeutic relevance of a set of enzymes whose activity is tightly regulated by the balance between the oxidi ...

Endocrine Society2010

MTCH2/MIMP is a major facilitator of tBID recruitment to mitochondria

Richardus Houtkooper

The BH3-only BID (BH3-interacting domain death agonist) protein has a critical function in the death-receptor pathway in the liver by triggering mitochondrial outer membrane permeabilization (MOMP). Here we show that MTCH2/MIMP (mitochondrial carrier homol ...

2010

In Vivo Modulation of Mitochondrial Activity Determines HSC Engraftment and Post-Transplant Survival in Mice

Johan Auwerx, Matthias Lütolf, Richardus Houtkooper, Olaia Maria Naveiras Torres-Quiroga, Eija Riitta Pirinen, Mukul Girotra, Vasco Ledebur de Antas de Campos, Aline Roch, Nicola Vannini

Amer Soc Hematology2012

Pharmacological approaches to restore mitochondrial function

Johan Auwerx, Richardus Houtkooper, Pénélope Andreux

Mitochondrial dysfunction is not only a hallmark of rare inherited mitochondrial disorders but also implicated in age-related diseases, including those that affect the metabolic and nervous system, such as type 2 diabetes and Parkinson's disease. Numerous ...

Nature Publishing Group2013

ACMSD INHIBITION REDUCES HEPATIC INFLAMMATION AND FIBROSIS IN A MURINE THERMONEUTRALITY MODEL OF NASH

Johan Auwerx, Richardus Houtkooper, Maroun Bou Sleiman, Xiaoxu Li, Krisztian Homicsko, Jia Liu, Sandra Rodriguez Lopez, Keno Strotjohann

Lippincott Williams & Wilkins2023