Results 31 to 40 of about 4,383 (155)
Pattern localization to a domain edge [PDF]
Phys. Rev. E 101, 022414 (2020), 2019 The formation of protein patterns inside cells is generically described by reaction-diffusion models. The study of such systems goes back to Turing, who showed how patterns can emerge from a homogenous steady state when two reactive components have different diffusivities (e.g. membrane-bound and cytosolic states). However, in nature, systems typically
arxiv +1 more source
Libyan Journal of Medicine, 2023 Vascular calcification (VC) is prevalent in uremia patients, lacking effective molecular biomarkers. This study was conducted to explore the role of serum cell division cycle 42 (CDC42) in the diagnosis of uremic VC incidence and progression. We enrolled
Mingzhi Xu +7 more
doaj +1 more source
Dynamics of membranes driven by actin polymerization [PDF]
, 2005 A motile cell, when stimulated, shows a dramatic increase in the activity of its membrane, manifested by the appearance of dynamic membrane structures such as lamellipodia, filopodia and membrane ruffles. The external stimulus turns on membrane bound activators, like Cdc42 and PIP2, which cause increased branching and polymerization of the actin ...
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Rho Family GTPases in Fission Yeast Cytokinesis
Communicative & Integrative Biology, 2019 During cytokinesis, actomyosin ring constriction drives furrow formation. In animal cells, Rho GTPases drive this process through the positioning and assembly of the actomyosin ring, and through extracellular matrix remodeling within the furrow.
Brian Hercyk, Maitreyi Das
doaj +1 more source
Paradoxical signaling regulates structural plasticity in dendritic spines [PDF]
, 2016 Transient spine enlargement (3-5 min timescale) is an important event associated with the structural plasticity of dendritic spines. Many of the molecular mechanisms associated with transient spine enlargement have been identified experimentally. Here, we use a systems biology approach to construct a mathematical model of biochemical signaling and ...
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Global well-posedness for volume-surface reaction-diffusion systems [PDF]
arXiv, 2021 We study the global existence of classical solutions to volume-surface reaction-diffusion systems with control of mass. Such systems appear naturally from modeling evolution of concentrations or densities appearing both in a volume domain and its surface, and therefore have attracted considerable attention.
arxiv
Deletion of Cdc42 in embryonic cardiomyocytes results in right ventricle hypoplasia
Clinical and Translational Medicine, 2017 Background Cdc42 is a member of the Rho GTPase family and functions as a molecular switch in regulating cytoskeleton remodeling and cell polarity establishment. Inactivating Cdc42 in cardiomyocytes resulted in embryonic lethality with heart developmental
Yang Liu +7 more
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Scientific Reports, 2022 The small GTPase Cdc42 is an integral component of the cytoskeleton, and its dysregulation leads to pathophysiological conditions, such as cancer. Binding of Cdc42 to the scaffold protein IQGAP1 stabilizes Cdc42 in its active form.
Samar Sayedyahossein +14 more
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DNA Origami‐Cyanine Nanocomplex for Precision Imaging of KRAS‐Mutant Pancreatic Cancer Cells
Advanced Science, EarlyView.DNA origami‐cyanine (Do‐Cy) nanocomplexes are synthesized to selectively image KRAS‐mutant pancreatic cancer cells in the highly desmoplastic tumors. This study shows that the Do‐Cy nanocomplexes are preferentially internalized by cancer cells over other stroma cells via KRAS‐dependent macropinocytosis.
Hye‐ran Moon +7 more
wiley +1 more source
Self-organization principles of intracellular pattern formation [PDF]
, 2018 Dynamic patterning of specific proteins is essential for the spatiotemporal regulation of many important intracellular processes in procaryotes, eucaryotes, and multicellular organisms. The emergence of patterns generated by interactions of diffusing proteins is a paradigmatic example for self-organization. In this article we review quantitative models
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