Search Results - "Sykes, Cecile"
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1
Actin dynamics, architecture, and mechanics in cell motility
Published in Physiological reviews (01-01-2014)“…Tight coupling between biochemical and mechanical properties of the actin cytoskeleton drives a large range of cellular processes including polarity…”
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2
ATP-dependent mechanics of red blood cells
Published in Proceedings of the National Academy of Sciences - PNAS (08-09-2009)“…Red blood cells are amazingly deformable structures able to recover their initial shape even after large deformations as when passing through tight blood…”
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3
Nesprin‐2 accumulates at the front of the nucleus during confined cell migration
Published in EMBO reports (03-07-2020)“…The mechanisms by which cells exert forces on their nuclei to migrate through openings smaller than the nuclear diameter remain unclear. We use CRISPR/Cas9 to…”
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4
Mechanics of Biomimetic Liposomes Encapsulating an Actin Shell
Published in Biophysical journal (15-12-2015)“…Cell-shape changes are insured by a thin, dynamic, cortical layer of cytoskeleton underneath the plasma membrane. How this thin cortical structure impacts the…”
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F-actin mechanics control spindle centring in the mouse zygote
Published in Nature communications (04-01-2016)“…Mitotic spindle position relies on interactions between astral microtubules nucleated by centrosomes and a rigid cortex. Some cells, such as mouse oocytes, do…”
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Actin polymerization or myosin contraction: two ways to build up cortical tension for symmetry breaking
Published in Philosophical transactions of the Royal Society of London. Series B. Biological sciences (05-11-2013)“…Cells use complex biochemical pathways to drive shape changes for polarization and movement. One of these pathways is the self-assembly of actin filaments and…”
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Inferring geometrical dynamics of cell nucleus translocation
Published in Physical review research (01-10-2024)“…The ability of eukaryotic cells to squeeze through constrictions is limited by the stiffness of their large and rigid nucleus. However, migrating cells are…”
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Unexpected Membrane Dynamics Unveiled by Membrane Nanotube Extrusion
Published in Biophysical journal (19-03-2013)“…In cell mechanics, distinguishing the respective roles of the plasma membrane and of the cytoskeleton is a challenge. The difference in the behavior of…”
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Capping protein is dispensable for polarized actin network growth and actin-based motility
Published in The Journal of biological chemistry (06-11-2020)“…Heterodimeric capping protein (CP) binds the rapidly growing barbed ends of actin filaments and prevents the addition (or loss) of subunits. Capping activity…”
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Cell-sized liposomes reveal how actomyosin cortical tension drives shape change
Published in Proceedings of the National Academy of Sciences - PNAS (08-10-2013)“…Animal cells actively generate contractile stress in the actin cortex, a thin actin network beneath the cell membrane, to facilitate shape changes during…”
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Adaptive Response of Actin Bundles under Mechanical Stress
Published in Biophysical journal (05-09-2017)“…Actin is one of the main components of the architecture of cells. Actin filaments form different polymer networks with versatile mechanical properties that…”
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How actin network dynamics control the onset of actin-based motility
Published in Proceedings of the National Academy of Sciences - PNAS (04-09-2012)“…Cells use their dynamic actin network to control their mechanics and motility. These networks are made of branched actin filaments generated by the Arp2/3…”
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Forces Generated during Actin-Based Propulsion: A Direct Measurement by Micromanipulation
Published in Proceedings of the National Academy of Sciences - PNAS (20-04-2004)“…Dynamic actin networks generate forces for numerous types of movements such as lamellipodia protrusion or the motion of endocytic vesicles. The actin-based…”
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Spreading Dynamics of Biomimetic Actin Cortices
Published in Biophysical journal (16-03-2011)“…Reconstituted systems mimicking cells are interesting tools for understanding the details of cell behavior. Here, we use an experimental system that mimics…”
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15
Liposome adhesion generates traction stress
Published in Nature physics (01-02-2014)“…Mechanical forces generated by cells modulate global shape changes required for essential life processes, such as polarization, division and spreading…”
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16
Interplay between membrane tension and the actin cytoskeleton determines shape changes
Published in Physical biology (30-07-2018)“…The ability of mammalian cells to deform their membrane relies on the action of the cytoskeleton. In particular, the dynamics of the actin cytoskeleton,…”
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Cell biology Actin filaments up against a wall
Published in Nature (London) (18-03-2010)Get full text
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Cell-sized liposomes that mimic cell motility and the cell cortex
Published in Building a Cell from Its Component Parts (01-01-2015)“…Cells move and change shape by dynamically reorganizing their cytoskeleton next to the plasma membrane. In particular, actin assembly generates forces and…”
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19
Stress Release Drives Symmetry Breaking for Actin-Based Movement
Published in Proceedings of the National Academy of Sciences - PNAS (31-05-2005)“…By using a simple assay composed of purified proteins, we studied the spontaneous polarization of actin networks polymerizing on spherical beads, which…”
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Membrane tension induces F-actin reorganization and flow in a biomimetic model cortex
Published in Communications biology (27-03-2023)“…The accumulation and transmission of mechanical stresses in the cell cortex and membrane determines the mechanics of cell shape and coordinates essential…”
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