Publications de Maria Litovchenko

Mammalian adipogenesis regulator (Areg) cells use retinoic acid signalling to be non- and anti-adipogenic in age-dependent manner

Bart Deplancke, Julie Marie Russeil, Horia Hashimi, Daniel Alpern, Maria Litovchenko, Magda Zachara, Pernille Yde Rainer, Radiana Ferrero

Adipose stem and precursor cells (ASPCs) give rise to adipocytes and determine the composition and plasticity of adipose tissue. Recently, several studies have demonstrated that ASPCs partition into at least three distinct cell subpopulations, including th ...

WILEY2022

Postnatal expansion of mesenteric lymph node stromal cells towards reticular and CD34(+) stromal cell subsets

Bart Deplancke, Vincent Roland Julien Gardeux, Julie Marie Russeil, Jörn Pezoldt, Guido Van Mierlo, Maria Litovchenko, Wanze Chen, Marjan Biocanin

Gut-draining mesenteric lymph nodes (LN) provide the framework to shape intestinal adaptive immune responses. Based on the transcriptional signatures established by our previous work, the composition and immunomodulatory function of LN stromal cells (SC) v ...

Nature Portfolio2022

A leukemia-protective germline variant mediates chromatin module formation via transcription factor nucleation

Freddy Radtke, Bart Deplancke, Ute Koch, Vincent Roland Julien Gardeux, Julie Marie Russeil, Jörn Pezoldt, Judith Franziska Kribelbauer, Riccardo Dainese, Daniel Alpern, Maria Litovchenko

Non-coding variants coordinate transcription factor (TF) binding and chromatin mark enrichment changes over regions spanning >100 kb. These molecularly coordinated regions are named "variable chromatin modules" (VCMs), providing a conceptual framework of h ...

Nature Portfolio2022

Extensive tissue-specific expression variation and novel regulators underlying circadian behavior

Matteo Dal Peraro, Bart Deplancke, Vincent Roland Julien Gardeux, Julie Marie Russeil, Virginie Sandra Braman, Antonio Carlos Alves Meireles Filho, Maria Litovchenko, Michael Vincent Frochaux, Alessio Prunotto, Brian Dennis Hollis

Natural genetic variation affects circadian rhythms across the evolutionary tree, but the underlying molecular mechanisms are poorly understood. We investigated population-level, molecular circadian clock variation by generating >700 tissue-specific transc ...

2021

cis-regulatory variation modulates susceptibility to enteric infection in the Drosophila genetic reference panel

Bart Deplancke, Vincent Roland Julien Gardeux, Maroun Bou Sleiman, Virginie Sandra Braman, Riccardo Dainese, Maria Litovchenko, Michael Vincent Frochaux, Dani Osman, Brian Dennis Hollis, Tommaso Andreani

Background: Resistance to enteric pathogens is a complex trait at the crossroads of multiple biological processes. We have previously shown in the Drosophila Genetic Reference Panel (DGRP) that resistance to infection is highly heritable, but our understan ...

2020

ASAP 2020 update: an open, scalable and interactive web-based portal for (single-cell) omics analyses

Bart Deplancke, Vincent Roland Julien Gardeux, Fabrice David, Maria Litovchenko

Single-cell omics enables researchers to dissect biological systems at a resolution that was unthinkable just 10 years ago. However, this analytical revolution also triggered new demands in 'big data' management, forcing researchers to stay up to speed wit ...

2020

Multi-omics reveals abundant mitochondrial genomic and circadian expression variation in the Drosophila Genetic Reference Panel

Maria Litovchenko

Modern biology rapidly generates a wealth of data,which can only be analysed computationally.Despite the variety of available data types,most of them aim to provide an answer to one question: how does genotypic diversity translates into phenotypes? This qu ...

EPFL2020

Epigenomic landscape defines immuno-modulatory properties across lymph node stromal cell subsets

Bart Deplancke, Vincent Roland Julien Gardeux, Jörn Pezoldt, Maria Litovchenko

WILEY2019

Mitochondrial haplotypes affect metabolic phenotypes in the Drosophila Genetic Reference Panel

Johan Auwerx, Bart Deplancke, Virginie Sandra Braman, Adamantia Kapopoulou, Maria Litovchenko, Brian Dennis Hollis, Roel Paulus Josephus Bevers

The nature and extent of mitochondrial DNA variation in a population and how it affects traits is poorly understood. Here we resequence the mitochondrial genomes of 169 Drosophila Genetic Reference Panel lines, identifying 231 variants that stratify along ...

2019

Commensal Gut Bacteria Buffer the Impact of Host Genetic Variants on Drosophila Developmental Traits under Nutritional Stress

Bart Deplancke, Virginie Sandra Braman, Maroun Bou Sleiman, Maria Litovchenko, Michael Vincent Frochaux

Eukaryotic genomes encode several buffering mechanisms that robustly maintain invariant phenotypic outcome despite fluctuating environmental conditions. Here we show that the Drosophila gut-associated commensals, represented by a single facultative symbion ...

2019