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Concept

Amniotic stem cells

Publications associées (29)

Deciphering the nature of cell state transitions in single cells using quantitative modeling of temporal dynamics

Alex Russell Lederer

Cells are the smallest operational units of living systems. Through synthesis of various biomolecules and exchange of signals with the environment, cells tightly regulate their composition to realize a specific functional state. The transformation of a cel ...

EPFL2024

Accessible and highly observable gastrointestinal organoid model systems for studying host-pathogen interactions

Moritz Hofer

Traditional cell cultures have long been fundamental to biological research, offering an alternative to animal models burdened by ethical constraints and procedural intricacies, often lacking relevance to human physiology and disease. Moreover, their inabi ...

EPFL2024

ISSCR standards for the use of human stem cells in basic research

Matthias Lütolf

The laboratory culture of human stem cells seeks to capture a cellular state as an in vitro surrogate of a biological system. For the results and outputs from this research to be accurate, meaning-ful, and durable, standards that ensure reproducibility and ...

Cell Press2023

A single-cell-based characterization of mammalian adipose stem and progenitor cell heterogeneity and function

Pernille Yde Rainer

White adipose tissue (WAT) is a cellularly heterogeneous endocrine organ that not only serves as a reservoir for storing and releasing energy but also actively participates in metabolic homeostasis. Given the current rise in obesity and its associated como ...

EPFL2023

Statistical learning quantifies transposable element-mediated cis-regulation

Didier Trono, Julien Léonard Duc, Evaristo Jose Planet Letschert, Alexandre Coudray, Cyril David Son-Tuyên Pulver, Raphaël Gérard Théodore Michel Marie de Deloÿe et Fourcade de Fondeville, Julien Paul André Pontis, Delphine Yvette L Grun, Shaoline Sheppard

Background: Transposable elements (TEs) have colonized the genomes of most metazoans, and many TE-embedded sequences function as cis-regulatory elements (CREs) for genes involved in a wide range of biological processes from early embryo- genesis to innate ...

2023

Deciphering the molecular events leading to the global restoration of the chromatin landscape during mitotic exit

Silja Michelle Placzek

Two fundamental properties of embryonic stem cells (ESCs) are their ability to self-renew and differentiate into all somatic cell types. Maintenance of their identity faces major challenges when transitioning through mitosis, as most DNA-binding proteins a ...

EPFL2023

Low temperature and mTOR inhibition favor stem cell maintenance in human keratinocyte cultures

Kai Johnsson, Yann Barrandon, Thomas Michael Braschler, Ariane Rochat, Jean-Baptiste Bureau, Fahd Azzabi Zouraq, Johannes Alexander Mosig

Adult autologous human epidermal stem cells can be extensively expanded ex vivo for cell and gene therapy. Identifying the mechanisms involved in stem cell maintenance and defining culture conditions to maintain stemness is critical, because an inadequate ...

WILEY2023

Programming of Multicellular Patterning with Mechano-Chemically Microstructured Cell Niches

Pierre Osteil

Multicellular patterning of stem-cell-derived tissue models is commonly achieved via self-organizing activities triggered by exogenous morphogenetic stimuli. However, such tissue models are prone to stochastic behavior, limiting the reproducibility of cell ...

WILEY2023

A satellite DNA array barcodes chromosome 7 and regulates totipotency via ZFP819

Didier Trono, Gabriela Ecco

Mammalian genomes are a battleground for genetic conflict between repetitive elements and KRAB-zinc finger proteins (KZFPs). We asked whether KZFPs can regulate cell fate by using ZFP819, which targets a satellite DNA array, ZP3AR. ZP3AR coats megabase reg ...

2022

Explicit Stabilized Multirate Method For Stiff Stochastic Differential Equations

Assyr Abdulle, Giacomo Rosilho De Souza

Stabilized explicit methods are particularly efficient, for large systems of stiff stochastic differential equations (SDEs) due to their extended stability domain. However, they lose their efficiency when a severe stiffness is induced by very few "fast" de ...

SIAM PUBLICATIONS2022

Actuated 3D microgels for single cell mechanobiology

Mahmut Selman Sakar, Ece Özelçi, Berna Ayse Özkale Edelmann, Christina Myra Tringides

We present a new cell culture technology for large-scale mechanobiology studies capable of generating and applying optically controlled uniform compression on single cells in 3D. Mesenchymal stem cells (MSCs) are individually encapsulated inside an optical ...

ROYAL SOC CHEMISTRY2022

Molecular Regulation of Muscle Stem Cell Fate during Skeletal Muscle Regeneration and Aging

Sara Ancel

Muscle stem cells (MuSCs) are the primary source of myogenic progenitors during muscle repair and are essential for the long-term regenerative capacity of skeletal muscle. Following myofiber injury, MuSCs transition from a quiescent to an activated state, ...

EPFL2022

In vitro endoderm emergence and self-organisation in the absence of extraembryonic tissues and embryonic architecture

Stefano Davide Vianello

In humans, mice, and other mammals key internal organs such as the gut, the lungs, the pancreas, and the liver all derive from the same embryonic tissue: the endoderm. The development of all of these structures thus depends on a same set of early cells, an ...

EPFL2022

Dissecting the role of biliary epithelial cells during non-alcoholic fatty liver disease progression

Ece Yildiz

The liver is the largest solid organ and the only one capable of using regenerative mechanisms to recover its mass fully. Although liver regeneration from acute injuries has been effective and extensively studied, chronic liver damage has adverse effects o ...

EPFL2022

PD-1-cis IL-2R agonism yields better effectors from stem-like CD8(+) T cells

Douglas Hanahan, Mélanie Louise Tichet, Petra Catalina Schwalie, Stephan Wullschleger

Expansion and differentiation of antigen-experienced PD-1(+)TCF-1(+) stem-like CD8(+) T cells into effector cells is critical for the success of immunotherapies based on PD-1 blockade(1-4). Hashimoto et al. have shown that, in chronic infections, administr ...

NATURE PORTFOLIO2022

Capturing Cardiogenesis in Gastruloids

Matthias Lütolf, Romain Guiet, Nicolas Antoine Vincent Broguiere, Mehmet Ugur Girgin, Giuliana Rossi, Andrea Boni

Organoids are powerful models for studying tissue development, physiology, and disease. However, current culture systems disrupt the inductive tissue-tissue interactions needed for the complex morphogenetic processes of native organogenesis. Here, we show ...

CELL PRESS2021

Post-translational regulation of neuronal differentiation

Jaipreet Singh Loomba

Glycosphingolipids (GSLs) are amphipathic lipid moieties that make up only 3% of the total lipid content of the cell and are almost exclusively expressed at the Plasma Membrane(PM). They are key drivers of signalling hotspots known as â lipid-raftsâ as ...

EPFL2021

Extracellular matrix requirements for gastrointestinal organoid cultures

Organoids are a new class of biological model systems that have garnered significant interest in the life sciences. When provided with the proper 3D matrix and biochemical factors, stem cells can self-organize and form tissue-specific organoids. Thus far, ...

2021

Urolithin A improves muscle function by inducing mitophagy in muscular dystrophy

Johan Auwerx, Hao Li, Davide D'Amico, Pénélope Andreux, Tanes Imamura de Lima, Pirkka-Pekka Untamo Laurila, Martin Rainer Wohlwend, Peiling Luan

Duchenne muscular dystrophy (DMD) is the most common muscular dystrophy, and despite advances in genetic and pharmacological disease-modifying treatments, its management remains a major challenge. Mitochondrial dysfunction contributes to DMD, yet the mecha ...

AMER ASSOC ADVANCEMENT SCIENCE2021

Defined matrices for epithelial organoid culture and disease modelling

Saba Rezakhani

Advances in our understanding of the biology of stem cells and their niches have provided the necessary foundation to create in vitro complex self-organizing three-dimensional (3D) structures called organoids. While organoids represent a highly promising n ...

EPFL2021