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

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Engineering hydrogel microenvironments for epithelial organoid culture

Antonius Chrisnandy

Organoids, miniature tissues generated from self-organizing stem cells within three-dimensional (3D) extracellular matrices (ECM), have opened up exciting possibilities for in vitro studies of complex physiological processes. A key factor in the success of ...

EPFL2024

Bioengineering human mini-intestines with in vivo-like complexity and function

Olga Mitrofanova

Biological research heavily relies on the use of animal models, which has made it difficult to answer specific questions about human biology and disease. However, with the advent of human organoids - miniature versions of tissues generated in 3D human stem ...

EPFL2023

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

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

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

Fatemeh Navaee

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

Engineering next generation organoids through guided stem cell self-organisation

Mikhail Nikolaev

One of the long-standing goals in the field of tissue engineering is the fabrication of de novo tissues or even organs to provide better tissue models for basic research and drug discovery, and to alleviate a shortage of donor organs in the future. Resear ...

EPFL2021

Capturing Cardiogenesis in Gastruloids

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

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

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

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

Matthias Lütolf, Gerardo Turcatti, George Coukos, Krisztian Homicsko, Nathalie Brandenberg, Fabien Kuttler, 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

PEG/HA Hybrid Hydrogels for Biologically and Mechanically Tailorable Bone Marrow Organoids

Nicolas Antoine Vincent Broguiere, Martin Ehrbar, Queralt Vallmajó Martín

Bone marrow (BM) organoids provide powerful tools to study the vital interplay between the BM microenvironment and resident cells. Current biomaterials, however, are limited in terms of versatility for independently studying the biochemical and biophysical ...

WILEY-V C H VERLAG GMBH2020