Concept

Embryoid body

Publications associées (28)

Towards an in vitro cardiac model: 3D environment, co-culture, alignment, and mechanical stimulation impact on cell behavior

Our aim is to develop a 3D model unit of cardiac muscle: an in-vitro analog of the trabeculae carneae found in vivo. As a base hydrogel matrix for cardiomyocyte culture in 3D, we develop a blend of decellularized extracellular matrix (dECM) and fibrin. Thi ...

EPFL2021

High-throughput automated organoid culture via stem-cell aggregation in microcavity arrays

Matthias Lütolf, Gerardo Turcatti, Nathalie Brandenberg, George Coukos, Fabien Kuttler, Krisztian Homicsko, Camilla Carla Alma Ceroni, Nikolche Gjorevski

Stem-cell-derived epithelial organoids are routinely used for the biological and biomedical modelling of tissues. However, the complexity, lack of standardization and quality control of stem cell culture in solid extracellular matrices hampers the routine ...

NATURE PUBLISHING GROUP2020

Marker-Free Automatic Quantification of Drug-Treated Cardiomyocytes with Digital Holographic Imaging

Gerardo Turcatti, Benjamin Rappaz, Fabien Kuttler, Bokyoung Kim, Pierre Marquet

We use quantitative phase digital holographic microscopy (QP-DHM) to image and quantify the beating movement of cardiomyocytes, derived from induced pluripotent stem cells (iPSCs), in control and drug-treated conditions. The development of an analysis algo ...

AMER CHEMICAL SOC2020

In vitro modeling of early mouse development

Mehmet Ugur Girgin

Previous attempts to recapitulate embryogenesis in a developmentally relevant context started with aggregates composed of a few thousand ESCs, termed embryoid bodies (EB), that upon induction of differentiation reveal a surprising level of autonomous cell ...

EPFL2020

Primate-restricted KRAB zinc finger proteins and target retrotransposons control gene expression in human neurons

Didier Trono, Bart Deplancke, Priscilla Turelli, Christian Axel Wandall Thorball, Julien Léonard Duc, Charlène Mireille Raymonde Raclot, Alexandre Coudray, Julien Paul André Pontis, Delphine Yvette L Grun, Christopher James Playfoot

In the first days of embryogenesis, transposable element-embedded regulatory sequences (TEeRS) are silenced by Kruppel-associated box (KRAB) zinc finger proteins (KZFPs). Many TEeRS are subsequently co-opted in transcription networks, but how KZFPs influen ...

2020

The Effect of Thiol Structure on Allyl Sulfide Photodegradable Hydrogels and their Application as a Degradable Scaffold for Organoid Passaging

Matthias Lütolf, Nikolche Gjorevski

Intestinal organoids are useful in vitro models for basic and translational studies aimed at understanding and treating disease. However, their routine culture relies on animal-derived matrices that limit translation to clinical applications. In fact, ther ...

Wiley-V C H Verlag Gmbh2020

Three dimensional models of tissue fibrosis

Matthias Lütolf, Kristina Schoonjans, Giovanni Sorrentino, Saba Rezakhani, Ece Yildiz

The invention provides a method for obtaining a three-dimensional (3D) cellular model of tissue fibrosis, such as liver fibrosis, comprising culturing epithelial cells in a 3D hydrogel in conditions suitable for a three-dimensional cellular cluster formati ...

2020

Low-Defect Thiol-Michael Addition Hydrogels as Matrigel Substitutes for Epithelial Organoid Derivation

Matthias Lütolf, Nikolche Gjorevski, Saba Rezakhani

Due to their selective crosslinking chemistry and well-defined mechano-biochemical characteristics, hydrogels crosslinked by thiol-Michael addition reactions have garnered immense interest for 3D cell culture applications. These hydrogels are typically for ...

2020

Recapitulating macro-scale tissue self-organization through organoid bioprinting

Matthias Lütolf, Moritz Hofer, Mikhail Nikolaev, Jonathan Brassard

A 3D bioprinting approach has been developed to facilitate tissue morphogenesis by directly depositing organoid-forming stem cells in an extracellular matrix, with the ability to generate intestinal epithelia and branched vascular tissue constructs. ...

NATURE RESEARCH2021

Hydrogel-based milliwell arrays for standardized and scalable retinal organoid cultures

Matthias Lütolf, Nathalie Brandenberg

The development of improved methods to culture retinal organoids is relevant for the investigation of mechanisms of retinal development under pathophysiological conditions, for screening of neuroprotective compounds, and for providing a cellular source for ...

Nature Research2020