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Concept

Membrane basale

Publications associées (20)

Mechanical Properties of Soft Biological Membranes for Organ-on-a-Chip Assessed by Bulge Test and AFM

Georg Fantner, Johann Michler, Veronika Cencen

Advanced in vitro models called “organ-on-a-chip” can mimic the specific cellular environment found in various tissues. Many of these models include a thin, sometimes flexible, membrane aimed at mimicking the extracellular matrix (ECM) scaffold of in vivo ...

2021

The secreted protease Adamts18 links hormone action to activation of the mammary stem cell niche

Philipp Bucher, Cathrin Brisken, Giovanna Ambrosini, Rachel Marcone, Céline Berthe Constantin, Dalya Ataca, Marie Shamseddin, Csaba Ferenc László, Marian Caikovski, Patrik Aouad

Estrogens and progesterone control breast development and carcinogenesis via their cognate receptors expressed in a subset of luminal cells in the mammary epithelium. How they control the extracellular matrix, important to breast physiology and tumorigenes ...

Nature Research2020

90 YEARS OF PROGESTERONE Progesterone receptor signaling in the normal breast and its implications for cancer

Cathrin Brisken, Valentina Scabia

Progesterone is considered as the pregnancy hormone and acts on many different target tissues. Progesterone receptor (PR) signaling is important for normal development and the physiologic function of the breast and impinges on breast carcinogenesis. Both s ...

BIOSCIENTIFICA LTD2020

Improving a fish intestinal barrier model by combining two rainbow trout cell lines: epithelial RTgutGC and fibroblastic RTgutF

Philippe Renaud, Kristin Schirmer, Hannah Inka Schug, Carolin Drieschner

An in vitro model of the fish intestine is of interest for research and application in diverse fields such as fish physiology, aquaculture and chemical risk assessment. The recently developed epithelial barrier model of the fish intestine relies on the RTg ...

Springer2019

Adamts18 Function in Mammary Gland Development

Dalya Ataca

Ovarian hormones control mammary gland development and impinge on breast carcinogenesis acting via their cognate receptors in the luminal epithelium. The extracellular matrix has a key role in physiology and disease but how the two are linked is poorly und ...

EPFL2019

Surface-confined Electrochemiluminescence Microscopy of Cell Membranes

Andreas Stephan Lesch, Milica Jovic

Herein is reported a surface-confined microscopy based on electrochemiluminescence (ECL) which allows to image the plasma membrane of single cells at the interface with an electrode. By analyzing photoluminescence (PL), ECL and AFM images of mammalian CHO ...

2018

Deciphering the subcapsular epithelial cells in human fetal and postnatal thymus

Diane Sophie Elodie Hemon

Most papers related to thymus focus on the cortical and medullary epithelial cells whereas the subcapsular layer is ignored. In this thesis, we are providing new informations about the subcapsular thymic epithelial cells (TECs) by comparing them to cortica ...

EPFL2017

Miniaturized Dielectric Elastomer Actuator for Mechanical Stimulation of Monolayer Cell Cultures

Alexandre Poulin

This thesis advances the field of dielectric elastomer actuators (DEAs) through the development of device designs, fabrication processes, strain characterization technique and modelling tool. It provides the first demonstration that DEAs can be interfaced ...

EPFL2016

Long-term Intravital Immunofluorescence Imaging of Tissue Matrix Components with Epifluorescence and Two-photon Microscopy

Melody Swartz, Manuel Andreas Fankhauser

Besides being a physical scaffold to maintain tissue morphology, the extracellular matrix (ECM) is actively involved in regulating cell and tissue function during development and organ homeostasis. It does so by acting via biochemical, biomechanical, and b ...

Journal Of Visualized Experiments2014

A role for angiopoietin-2 in organ-specific metastasis

Michele De Palma, Nicolo Rigamonti

Angiopoietin-2 (ANG2/ANGPT2) has recently emerged as a promising target for the inhibition of tumor metastasis. In this issue of Cell Reports, Minami et al. show that the calcineurin-NFAT pathway promotes pulmonary tumor metastasis by inducing ANG2 in the ...

Elsevier2013

Impedance spectroscopy for in vitro toxicology

Robert Meissner

The impedance of biological material changes with frequency, a phenomenon that has been discovered more than 100 years ago. It is due to the fact that the cell membrane acts as a capacitor which filters out currents at low frequency and lets them pass at h ...

EPFL2013

Force volume and stiffness tomography investigation on the dynamics of stiff material under bacterial membranes

Giovanni Dietler, Sandor Kasas, Giovanni Longo, Charles Roduit

The determination of the characteristics of micro-organisms in clinical specimens is essential for the rapid diagnosis and treatment of infections. A thorough investigation of the nanoscale properties of bacteria can prove to be a fundamental tool. Indeed, ...

Wiley-Blackwell2012

Asymmetric Cell Division in the Skin

Wan-Hung Fan

An asymmetric cell division (ACD) is defined as a division that gives rise to two daughter cells with different fates. It is the most common type of division during development. Analogous to Drosophila neuroblasts, proteins involved in ACD such as Insc and ...

EPFL2012

Folding and Structure of the Pore Forming Toxin Aerolysin

Mircea Ioan Iacovache

The first obstacle encountered by a bacterial pathogen once inside the host is the plasma membrane surrounding the target cells. Throughout evolution bacteria has acquired and maintained genes that upon stimulation express proteins capable of damaging the ...

EPFL2011

Blue-violet excited autofluorescence spectroscopy and imaging of normal and cancerous human bronchial tissue after formalin fixation

Georges Wagnières, Tanja Gabrecht

Autofluorescence (AF) imaging is a powerful tool for the detection of (pre-)neoplastic lesions in the bronchi. Several endoscopic imaging systems exploit the spectral and intensity contrast of AF between healthy and (pre-)neoplastic bronchial tissues, yet, ...

Wiley-Blackwell2007

Characterization of lymphangiogenesis in a model of adult skin regeneration

Melody Swartz

To date, adult lymphangiogenesis is not well understood. In this study we describe the evolution of lymphatic capillaries in regenerating skin and correlate lymphatic migration and organization with the expression of matrix metalloproteinases (MMPs), immun ...

2006

Monitoring the Diffusion of Single Heterotrimeric G Proteins in Supported Cell-membrane Sheets Reveals their Partitioning into Microdomains

Horst Arthur Vogel, Jean-Manuel Segura, Joachim Piguet, Jean-Baptiste Perez

Supported cell-membrane sheets are promising in vitro systems to investigate the properties of membranes with native protein/lipid composition, in particular their sub-compartmentalization and the differential localization of proteins associated to them. W ...

Elsevier2006

Supported cell-membrane sheets for functional fluorescence imaging of membrane proteins

Horst Arthur Vogel, Jean-Manuel Segura, Jean-Baptiste Perez

Cell-membrane sheets suitable for in-vitro functional fluorescence studies have been prepd. by direct detachment from cell membranes using poly-L-lysine-coated glass slides. The resulting transferred planar membranes conserve the compn. as well as most pro ...

2006

Chemical approaches to microarrays and multifunctional protein labeling

India Christina Sielaff

With the human genome and many other eukaryotic and procaryotic genomes sequenced, the interest in life sciences is shifting towards the examination of the function, modification and regulation of the encoded proteins. Proteins are involved in virtually al ...

EPFL2006

Investigating molecular interactions of G protein coupled receptors by fluorescence techniques

Jean-Baptiste Perez

G Protein coupled receptors (GPCRs) constitute an abundant family of membrane proteins which play a central role in cellular signaling and are important targets for modern medicine. Despite intensive research, central questions of the molecular mechanism o ...

EPFL2005