Atef Asnacios

Synthetic pectin–cellulose nanofiber capsule recapitulates the mechanical properties of a regenerating plant cell wall

Cyril Grandjean, Ravi M. Shanker, Sarah A. Pfaff, Anran Mao et autres

Plant primary cell walls are dynamic supramolecular assemblies composed of layered cellulose, hemicellulose, and pectin, progressively built through synthesis and secretion. However, the specific architectural features and structural components sufficient to endow the mechanical properties of the wall remain unclear. Here, we …

fr, se, us, gb (code pays fourni par la source)

Dataset associated with "Synthetic pectin–cellulose nanofiber capsule recapitulates the mechanical properties of a regenerating plant cell wall"

Cyril Grandjean, Ravi M. Shanker, Sarah A. Pfaff, Anran Mao et autres

This repository contains the raw data associated with the manuscript “Synthetic pectin–cellulose nanofiber capsule recapitulates the mechanical properties of a regenerating plant cell wall”. The deposited files include raw data from atomic force microscopy (AFM), transmission electron microscopy (TEM), Polarized optical microscopy …

fr, se, us, gb (code pays fourni par la source)

Dataset associated with "Synthetic pectin–cellulose nanofiber capsule recapitulates the mechanical properties of a regenerating plant cell wall"

Cyril Grandjean, Ravi M. Shanker, Sarah A. Pfaff, Anran Mao et autres

This repository contains the raw data associated with the manuscript “Synthetic pectin–cellulose nanofiber capsule recapitulates the mechanical properties of a regenerating plant cell wall”. The deposited files include raw data from atomic force microscopy (AFM), transmission electron microscopy (TEM), Polarized optical microscopy …

fr, se, us, gb (code pays fourni par la source)

Calcium-triggered apoplastic ROS bursts balance gravity and mechanical signals for soil navigation

Ivan Kulich, Dmitrii Vladimirtsev, Marek Randuch, Shiqiang Gao et autres

Reactive oxygen species (ROS) have been implicated in multiple signaling processes in plants, but the underlying mechanisms and roles remain enigmatic. In this study, we developed a method of live imaging of apoplastic ROS at the root surface. Distinct signals, including auxin, …

at, cz, de, fi, fr, gb (code pays fourni par la source)

Micro-mechanical approaches to characterize tip growth: Insights into root hair elasto-viscoplastic properties

Thomas Alline, Léa Cascaro, David Pereira, Atef Asnacios

Root hairs are outgrowths of the epidermal cells of plant roots. They increase the root's exchange surface with the soil and provide it with good anchorage in the soil. Root hairs are an emblematic model of apical growth, a process also used …

fr (code pays fourni par la source)

Alzheimer's disease amyloid-β affects membrane structure and mechanical properties of human neural progenitors

Sophie Asnacios, Galya Staneva, Gabriel Thon, Félix Vannier et autres

Background In Alzheimer's disease (AD), neurogenesis and neuroplasticity are severely affected but there is not yet a consensus about the underlying mechanisms. The amyloid cascade hypothesis is associated with overproduction of the amyloid-β (Aβ) peptide in the brain and points out the …

fr, bg (code pays fourni par la source)

Intermediate filaments promote glioblastoma cell invasion by controlling nuclear deformations and mechanosensitive expression of MMP14

Emma J. van Bodegraven, Elvira Infante, Florent Péglion, David Ricardo Do Vale Pereira et autres

Glioblastoma (GBM), the most aggressive primary brain tumor, is marked by high invasiveness that enables resistance to current therapies. Single-cell RNA sequencing analysis reveals that elevated expression of glial intermediate filament (IF) genes correlates with pro-invasive markers in GBM samples. Notably, vimentin …

fr, nl (code pays fourni par la source)

Single Root hair growth under constant force: insights into wall mechanics

Thomas Alline, Léa Cascaro, Pauline Durand-Smet, Étienne Couturier et autres

Tip growth is a tightly regulated process that enables root hairs to explore their surroundings, enhancing plant development, particularly by improving nutrient uptake. While Lockhart's viscoplastic framework is widely used to describe this process, it has received limited experimental validation. By integrating …

fr (code pays fourni par la source)

Synthetic pectin-cellulose nanofiber capsule provides minimal model capturing mechanics of a regenerating plant cell wall

Cyril Grandjean, Ravi M. Shanker, Anran Mao, Jordi Chan et autres

ABSTRACT Plant primary cell walls are dynamic supramolecular assemblies composed of layered cellulose, hemicellulose and pectin, progressively built through synthesis and secretion. However, the specific architectural features and structural components sufficient to endow the mechanical properties of the wall remain unclear. Here, …

fr, se, us, gb (code pays fourni par la source)

Micro-mechanical approaches to characterize tip growth: Insights into Root Hair Elasto-Viscoplastic Properties

Thomas Alline, Léa Cascaro, David Ricardo Do Vale Pereira, Atef Asnacios

Abstract Root hairs are outgrowths of the epidermal cells of plant roots. They increase the root’s exchange surface with the soil and provide it with good anchorage in the soil. Root hairs are an emblematic model of apical growth, a process also …

fr (code pays fourni par la source)

Allometric cell spreading and the geometrical control of focal adhesion collective organization

Célian Bimbard, Ali-Alhadi Wahhod, Démosthène Mitrossilis, Joseph Vermeil et autres

fr, gr (code pays fourni par la source)

Intratumoral Heterogeneity of Vimentin Modulates Nuclear Mechanotransduction, DNA Damage Response and Cancer Cell Survival

Elvira Infante, Emmanuel Terriac, Matthieu Gélin, Hugo Siegfried et autres

Abstract Vimentin, a major intermediate filament protein, is essential for maintaining cellular integrity and regulating cytoskeletal dynamics. Its upregulation is a hallmark of epithelial-to-mesenchymal transition (EMT), a process that enhances cancer cell migration, invasion, and metastatic potential. However, single-cell transcriptomic analyses of …

fr, nl (code pays fourni par la source)