Publications de Mehmet Ugur Girgin

Measuring reporter activity domain in EPI aggregates and Gastruloids.ijm

Matthias Lütolf, Olivier Burri, Romain Guiet, Mehmet Ugur Girgin

This imagej macro analyses the reporter intensity activity and expression domain in EPI aggregates and Gastruloids. ...

Zenodo2022

Capturing Cardiogenesis in Gastruloids

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

Gastruloids generated without exogenous Wnt activation develop anterior neural tissues

Matthias Lütolf, Nicolas Antoine Vincent Broguiere, Mehmet Ugur Girgin

When stimulated with a pulse from an exogenous WNT pathway activator, small aggregates of mouse embryonic stem cells (ESCs) can undergo embryo-like axial morphogenesis and patterning along the three major body axes. However, these structures, called gastru ...

2021

Bioengineered embryoids mimic post-implantation development in vitro

Matthias Lütolf, Nicolas Antoine Vincent Broguiere, Mehmet Ugur Girgin

The difficulty of studying post-implantation development in mammals has sparked a flurry of activity to develop in vitro models, termed embryoids, based on self-organizing pluripotent stem cells. Previous approaches to derive embryoids either lack the phys ...

Nature Portfolio2021

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

Mammary epithelial morphogenesis in 3D combinatorial microenvironments

Matthias Lütolf, Mehmet Ugur Girgin

Human mammary epithelial cells can proliferate and reorganize into polarized multi-cellular constructs in-vitro, thereby functioning as an important model system in recapitulating key steps of in-vivo morphogenesis. Current approaches to constructing such ...

NATURE RESEARCH2020

High-throughput stem cell-based phenotypic screening through microniches

Matthias Lütolf, Simone Allazetta, Laura Kolb, Mehmet Ugur Girgin

As the field of tissue engineering develops, methods for screening combinations of signals for their effects on stem cell behavior are needed. We introduce a microgel-based screening platform for testing combinations of in situ-generated proteins on stem c ...

ROYAL SOC CHEMISTRY2019

Multi-axial self-organization properties of mouse embryonic stem cells into gastruloids

Denis Duboule, Matthias Lütolf, Leonardo Beccari, Mehmet Ugur Girgin, Anne-Catherine Cossy, Alfonso Martinez Arias

The emergence of multiple axes is an essential element in the establishment of the mammalian body plan. This process takes place shortly after implantation of the embryo within the uterus and relies on the activity of gene regulatory networks that coordina ...

NATURE PUBLISHING GROUP2018