Concept

Lamellipode

Publications associées (18)

Cellular forces and matrix assembly coordinate fibrous tissue repair

Planar in vitro models have been invaluable tools to identify the mechanical basis of wound closure. Although these models may recapitulate closure dynamics of epithelial cell sheets, they fail to capture how a wounded fibrous tissue rebuilds its 3D archit ...

2016

Fundamental Constraints on the Abundances of Chemotaxis Proteins

Anne-Florence Raphaëlle Bitbol

Flagellated bacteria, such as Escherichia coli, perform directed motion in gradients of concentration of attractants and repellents in a process called chemotaxis. The E. coli chemotaxis signaling pathway is a model for signal transduction, but it has uniq ...

Elsevier BV2015

Contact Angle at the Leading Edge Controls Cell Protrusion Rate

László Forró, Jean-Jacques Meister, Niccolo Piacentini, Chiara Gabella, Sylvia Jeney, Elena Bertseva, Alicia Carine Bornert

Plasma membrane tension and the pressure generated by actin polymerization are two antagonistic forces believed to define the protrusion rate at the leading edge of migrating cells [1-5]. Quantitatively, resistance to actin protrusion is a product of membr ...

Elsevier2014

Anillin Regulates Cell-Cell Junction Integrity by Organizing Junctional Accumulation of Rho-GTP and Actomyosin

Ricard Delgado Gonzalo

Anillin is a scaffolding protein that organizes and stabilizes actomyosin contractile rings and was previously thought to function primarily in cytokinesis [1-10]. Using Xenopus laevis embryos as a model system to examine Anillin's role in the intact verte ...

Cell Press2014

Interplay between cytoskeletal forces, membrane tension and shape in rapidly migrating cells

Chiara Gabella

Cell migration is a fundamental process in all animal cells. The ability of cell to migrate is crucial for many pathological and physiological conditions such as morphogenesis, the immune response to inflammatory or vascular diseases and cancer metastasis. ...

EPFL2013

Cell shape-dependent early responses of fibroblasts to cyclic strain

Jürgen Brugger, Mattia Marelli

Randomly spread fibroblasts on fibronectin-coated elastomeric membranes respond to cyclic strain by a varying degree of focal adhesion assembly and actin reorganization. We speculated that the individual shape of the cells, which is linked to cytoskeletal ...

Elsevier2013

A role for actin arcs in the leading-edge advance of migrating cells

Suliana Manley

Epithelial cell migration requires coordination of two actin modules at the leading edge: one in the lamellipodium and one in the lamella. How the two modules connect mechanistically to regulate directed edge motion is not understood. Using live-cell imagi ...

2011

Dual-mode digital holographic and fluorescence microscopy for the study of morphological changes in cells under simulated microgravity

Christian Depeursinge, Christophe Pache, Jonas Kühn, Muhammed Fatih Toy, Jérôme Parent, Marcel Egli

A dual mode microscope is developed to study morphological evolution of mouse myoblast cells under simulated microgravity in real time. Microscope operates in Digital Holographic Microscopy (DHM) and widefield epifluorescence microscopy modes in a time seq ...

SPIE2010

Single-Particle Tracking Photoactivated Localization Microscopy For Mapping Single-Molecule Dynamics

Suliana Manley

Recent developments in single-molecule localization techniques using photoactivatable fluorescent proteins have allowed the probing of single-molecule motion in a living cell with high specificity, millisecond time resolution, and nanometer spatial resolut ...

2010

The role of Schizosaccharomyces pombe dma1 in spore formation during meiosis

Viesturs Simanis, Andrea Krapp, Elena Cano

Meiosis is a specialised form of the cell cycle that gives rise to haploid gametes. In Schizosaccharomyces pombe, the products of meiosis are four spores, which are formed by encapsulation of the four meiosis II nuclei within the cytoplasm of the zygote pr ...

2010

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