Concept

Flux (metabolism)

Publications associées (253)

Towards comprehensive and consistent kinetic models of metabolism under uncertainty

Metabolism is the sum of the chemical interactions occurring inside a cell that process nutrients into cellular constituents and energy. Research in the recent decades has enabled the characterization of metabolic reaction networks for multiple organisms. ...

EPFL2019

Kinetic models of metabolism that consider alternative steady-state solutions of intracellular fluxes and concentrations

Vassily Hatzimanikatis, Ljubisa Miskovic, Meriç Ataman, Georgios Fengos, Tuure Eelis Hameri

Large-scale kinetic models are used for designing, predicting, and understanding the metabolic responses of living cells. Kinetic models are particularly attractive for the biosynthesis of target molecules in cells as they are typically better than other t ...

2019

Increase and homogenization of the endogenous production of protoporphyrin IX by photobiomodulation

Georges Wagnières, Jaroslava Joniová, Emmanuel Louis Arthur Gerelli

Photodynamic therapy (PDT) and/or photodetection (PDD) based on protoporphyrin IX (PpIX) are used in many medical fields. However, the endogenous production of PpIX in tissues after administration of its precursor, 5-aminolevulinic acid (ALA) or derivative ...

SPIE-INT SOC OPTICAL ENGINEERING2019

Statistical inference in ensemble modeling of cellular metabolism

Vassily Hatzimanikatis, Marc-Olivier Boldi, Tuure Eelis Hameri

Kinetic models of metabolism can be constructed to predict cellular regulation and devise metabolic engineering strategies, and various promising computational workflows have been developed in recent years for this. Due to the uncertainty in the kinetic pa ...

2019

Impact of iron reduction on the metabolism of Clostridium acetobutylicum

Vassily Hatzimanikatis, Karin Lederballe Meibom, Zhaleh Hosseini, Cornelia List

Iron is essential for most living organisms. In addition, its biogeochemical cycling influences important processes in the geosphere (e.g., the mobilization or immobilization of trace elements and contaminants). The reduction of Fe(III) to Fe(II) can be ca ...

2019

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 ...

WILEY2019

Life-history trade-offs and limitations associated with phenotypic adaptation under future ocean warming and elevated salinity

Emma Mary Gibbin, Félix Christen

Little is known about the life-history trade-offs and limitations, and the physiological mechanisms that are associated with phenotypic adaptation to future ocean conditions. To address this knowledge gap, we investigated the within-and trans-generation li ...

ROYAL SOC2019

Targeting mitochondrial bioenergetics and NAD+ metabolism during sarcopenia and regeneration of skeletal muscle

Tanja Sonntag

The progressive decline of muscle mass and function called sarcopenia is a multi-factorial process associated to frailty, disability, and low quality of life in the elderly. The co-factor nicotinamide adenine dinucleotide (NAD+) becomes a limiting factor i ...

EPFL2019

Metabolomics reveals tepotinib‐related mitochondrial dysfunction in MET activating mutations‐driven models

Katarzyna Pierzchala

Genetic aberrations in the hepatocyte growth factor receptor tyrosine kinase MET induce oncogenic addiction in various types of human cancers, advocating MET as a viable anticancer target. Here, we report that MET signaling plays an important role in confe ...

2019

Systematic reduction of genome-scale models for the study of metabolic phenotypes of human cells

Vassily Hatzimanikatis, Meriç Ataman, Maria Masid Barcon

In the last years, the analysis of cellular metabolism has sparked new interest in systems biology and metabolic modelling. In particular, modelling the phenotypes of healthy and diseased cells will help to understand the main metabolic characteristics of ...

2018

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