Results 71 to 80 of about 593,400 (295)

Simulation of cell movement through evolving environment: a fictitious domain approach [PDF]

, 2012
A numerical method for simulating the movement of unicellular organisms which respond to chemical signals is presented. Cells are modelled as objects of finite size while the extracellular space is described by reaction-diffusion partial differential ...
Burrage, K., Erban, R., Kay, D., Séguis, J. - C.   +3 more
core  

Brain extracellular space as a diffusion barrier [PDF]

Computing and Visualization in Science, 2011
The extracellular space (ECS) consists of the narrow channels between brain cells together with their geometrical configuration and contents. Despite being only 20-60 nm in width, the ECS typically occupies 20% of the brain volume. Numerous experiments over the last 50 years have established that molecules moving through the ECS obey the laws of ...
Charles, Nicholson, Padideh, Kamali-Zare, Lian, Tao   +2 more
openaire   +2 more sources

Recurrent cancer‐associated ERBB4 mutations are transforming and confer resistance to targeted therapies

Molecular Oncology, EarlyView.
We show that the majority of the 18 analyzed recurrent cancer‐associated ERBB4 mutations are transforming. The most potent mutations are activating, co‐operate with other ERBB receptors, and are sensitive to pan‐ERBB inhibitors. Activating ERBB4 mutations also promote therapy resistance in EGFR‐mutant lung cancer.
Veera K. Ojala, Sini Ahonen, Sara Peltola, Aura Tuohisto‐Kokko, Olaya Esparta, Peppi Suominen, Anne Jokilammi, Iman Farahani, Deepankar Chakroborty, Nikol Dibus, Steffen Boettcher, Tomi T. Airenne, Mark S. Johnson, Lisa D. Eli, Klaus Elenius, Kari J. Kurppa   +15 more
wiley   +1 more source

Epithelial sodium channels (ENaC) produce extracellular positive DC potentials in the retinal neuroepithelium

Data in Brief, 2016
Positive DC (direct current) potentials were measured in the extracellular space in the retinal neuroepithelium of chick embryos. The positive DC potential was suppressed by amiloride, a blocker for epithelial Na+ channels (ENaC).
Masayuki Yamashita
doaj   +1 more source

Molecular Mechanisms Mediating the Transfer of Disease-Associated Proteins and Effects on Neuronal Activity

Journal of Parkinson’s Disease, 2022
Background: Various cellular pathways have been implicated in the transfer of disease-related proteins between cells, contributing to disease progression and neurodegeneration. However, the overall effects of protein transfer are still unclear. Objective:
Inês C. Brás, Mohammad H. Khani, Eftychia Vasili, Wiebke Möbius, Dietmar Riedel, Iwan Parfentev, Ellen Gerhardt, Christiane Fahlbusch, Henning Urlaub, Markus Zweckstetter, Tim Gollisch, Tiago F. Outeiro   +11 more
doaj   +1 more source

Aquaporin-4-dependent K(+) and water transport modeled in brain extracellular space following neuroexcitation. [PDF]

, 2013
Potassium (K(+)) ions released into brain extracellular space (ECS) during neuroexcitation are efficiently taken up by astrocytes. Deletion of astrocyte water channel aquaporin-4 (AQP4) in mice alters neuroexcitation by reducing ECS [K(+)] accumulation ...
Binder, Devin K, Jin, Byung-Ju, Verkman, AS, Zhang, Hua   +3 more
core   +2 more sources

Determination of Extracellular Space in Amphibian Muscle [PDF]

The Journal of General Physiology, 1967
The volumes of distribution of inulin and dextran in the sartorius, stomach, and cardiac muscle of the frog agree rather closely. That these spaces represent the volume of extracellular water is supported by the observation that efflux of sucrose can be divided into a fast and a slow phase and that the fast-moving fraction corresponds closely with ...
openaire   +2 more sources

Modeling Extracellular Field Potentials and the Frequency-Filtering Properties of Extracellular Space [PDF]

Biophysical Journal, 2004
Extracellular local field potentials (LFP) are usually modeled as arising from a set of current sources embedded in a homogeneous extracellular medium. Although this formalism can successfully model several properties of LFPs, it does not account for their frequency-dependent attenuation with distance, a property essential to correctly model ...
Bédard, Claude, Kröger, Helmut, Destexhe, Alain   +2 more
openaire   +3 more sources

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source

Circadian rhythm and sleep-wake systems share the dynamic extracellular synaptic milieu

Neurobiology of Sleep and Circadian Rhythms, 2018
The mammalian circadian and sleep-wake systems are closely aligned through their coordinated regulation of daily activity patterns. Although they differ in their anatomical organization and physiological processes, they utilize overlapping regulatory ...
Joanna M. Cooper, Kathryn A. Halter, Rebecca A. Prosser   +2 more
doaj   +1 more source