Results 41 to 50 of about 319,680 (268)
A biased random walk approach for modeling the collective chemotaxis of neural crest cells [PDF]
arXiv, 2023 Collective cell migration is a multicellular phenomenon that arises in various biological contexts, including cancer and embryo development. "Collectiveness" can be promoted by cell-cell interactions such as co-attraction and contact inhibition of locomotion. These mechanisms act on cell polarity, pivotal for directed cell motility, through influencing
arxiv
Effects of 3D Geometries on Cellular Gradient Sensing and Polarization [PDF]
Phys. Biol. 13 036008 (2016), 2015 During cell migration, cells become polarized, change their shape, and move in response to various internal and external cues. Cell polarization is defined through the spatio-temporal organization of molecules such as PI3K or small GTPases, and is determined by intracellular signaling networks.
arxiv +1 more source
Advances in exosome biomarkers for cervical cancer
Cancer Medicine, Volume 11, Issue 24, Page 4966-4978, December 2022., 2022 Cancer‐derived exosomes may promote CC metastasis by boosting cellular epithelial‐mesenchymal transformation (EMT), controlling the proliferation, invasion, or migration of cancer cells, as well as influencing immune escape and aiding angiogenesis.
Zihan Ran +5 more
wiley +1 more source
MglA functions as a three-state GTPase to control movement reversals of Myxococcus xanthus
Nature Communications, 2019 In Myxococcus xanthus, directed movement is controlled by pole-to-pole oscillations of the small GTPase MglA and its GAP MglB. Here authors report the complete MglA/MglB structural cycle and uncover that MglA is a three-state GTPase that adopts an ...
Christian Galicia +8 more
doaj +1 more source
The GTPase IFT27 is involved in both anterograde and retrograde intraflagellar transport
eLife, 2014 The construction of cilia and flagella depends on intraflagellar transport (IFT), the bidirectional movement of two protein complexes (IFT-A and IFT-B) driven by specific kinesin and dynein motors.
Diego Huet +3 more
doaj +1 more source
Turing instabilities in a mathematical model for signaling networks [PDF]
, 2011 GTPase molecules are important regulators in cells that continuously run through an activation/deactivation and membrane-attachment/membrane-detachment cycle. Activated GTPase is able to localize in parts of the membranes and to induce cell polarity.
arxiv +1 more source
The power of microRNA regulation—insights into immunity and metabolism
FEBS Letters, EarlyView.MicroRNAs are emerging as crucial regulators at the intersection of metabolism and immunity. This review examines how miRNAs coordinate glucose and lipid metabolism while simultaneously modulating T‐cell development and immune responses. Moreover, it highlights how cutting‐edge artificial intelligence applications can identify miRNA biomarkers ...
Stefania Oliveto +2 more
wiley +1 more source
FEBS Letters, EarlyView.In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley +1 more source
Molecular Oncology, EarlyView.This study demonstrates that KRAS and GNAS mutations are more prevalent in patients with resected intraductal papillary mucinous neoplasms (IPMN) compared to those under clinical surveillance. GNAS mutations significantly differ between the two patient cohorts, indicating that their absence may serve as a potential biomarker to support conservative ...
Christine Nitschke +12 more
wiley +1 more source
PAKing up to the endothelium [PDF]
, 2009 Angiogenesis recapitulates the growth of blood vessels that progressively expand and remodel into a highly organized and stereotyped vascular network. During adulthood, endothelial cells that formed the vascular wall retain their plasticity and can be engaged in neo-vascularization in response to physiological stimuli, such as hypoxia, wound healing ...
arxiv +1 more source