Results 51 to 60 of about 44,347 (208)

Purinergic and Calcium Signaling in Macrophage Function and Plasticity [PDF]

open access: yes, 2014
In addition to a fundamental role in cellular bioenergetics, the purine nucleotide adenosine triphosphate (ATP) plays a crucial role in the extracellular space as a signaling molecule.
Bimal N. Desai, Norbert Leitinger
core   +2 more sources

A Xanthine Derivative With Novel Heat Shock Protein 90‐Alpha Inhibitory and Senolytic Properties

open access: yesAging Cell, EarlyView.
This study aimed to find safe senolytic drugs that selectively eliminate senescent cells. Focusing on HSP90 inhibitors, we employed a virtual screening to identify novel, safer compounds (A). K5, a xanthinic candidate, effectively eliminated senescent cells in various cellular models (B), extended lifespan in flies, and reduced aging signs in mice (C).
Sandra Atlante   +24 more
wiley   +1 more source

Human and Mouse Alzheimer's Seeds Differentially Affect Amyloid Deposition and Microglia‐Dependent Plaque Response in Aged Mice

open access: yesAging Cell, EarlyView.
This study shows that human and mouse brains contain a different pool of strains that differentially affect the formation of Aβ and tau aggregates. Moreover, the murine seeds trigger an unresponsiveness microglial state, which causes the loss of plaque microglial coverage and affects the formation of amyloid plaques, leading to more severe neuritic ...
Juana Andreo‐Lopez   +20 more
wiley   +1 more source

Activation of Extracellular-signal Regulated Kinase (ERK1/2) by Fluid Shear is Ca\u3csup\u3e2+\u3c/sup\u3e- and ATP-dependent in MC3T3-E1 Osteoblasts [PDF]

open access: yes, 2008
To determine the role of Ca2+ signaling in activation of the Mitogen-Activated Protein Kinase (MAPK) pathway, we subjected MC3T3-E1 pre-osteoblastic cells to inhibitors of Ca2+ signaling during application of fluid shear stress (FSS).
Duncan, Randall L.   +7 more
core   +1 more source

Deficiency of the purinergic receptor 2X7 attenuates nonalcoholic steatohepatitis induced by high-fat diet. possible role of the NLRP3 Inflammasome [PDF]

open access: yes, 2017
Molecular mechanisms driving transition from simple steatosis to nonalcoholic steatohepatitis (NASH), a critical step in the progression of nonalcoholic fatty liver disease (NAFLD) to cirrhosis, are poorly defined. This study aimed at investigating the
Blasetti Fantauzzi, Claudia   +6 more
core   +3 more sources

G protein‐coupled receptor‐mediated autophagy in health and disease

open access: yesBritish Journal of Pharmacology, EarlyView.
G protein‐coupled receptors (GPCRs) constitute the largest and most diverse superfamily of mammalian transmembrane proteins. These receptors are involved in a wide range of physiological functions and are targets for more than a third of available drugs in the market. Autophagy is a cellular process involved in degrading damaged proteins and organelles
Devrim Öz‐Arslan   +2 more
wiley   +1 more source

P2X4: A fast and sensitive purinergic receptor

open access: yesBiomedical Journal, 2017
Extracellular nucleotides have been recognized as important mediators of activation, triggering multiple responses via plasma membrane receptors known as P2 receptors. P2 receptors comprise P2X ionotropic receptors and G protein-coupled P2Y receptors.
Suurväli, Jaanus   +3 more
openaire   +6 more sources

Activity-dependent release of Adenosine: a critical re-evaluation of mechanism [PDF]

open access: yes, 2008
Adenosine is perhaps the most important and universal modulator in the brain. The current consensus is that it is primarily produced in the extracellular space from the breakdown of previously released ATP.
Dale, Nicholas, Wall, Mark J.
core   +2 more sources

ERNEST COST action overview on the (patho)physiology of GPCRs and orphan GPCRs in the nervous system

open access: yesBritish Journal of Pharmacology, EarlyView.
G protein‐coupled receptors (GPCRs) are a large family of cell surface receptors that play a critical role in nervous system function by transmitting signals between cells and their environment. They are involved in many, if not all, nervous system processes, and their dysfunction has been linked to various neurological disorders representing important
Necla Birgül Iyison   +15 more
wiley   +1 more source

Differences in localization of P2X7 during epithelial wound healing in pre-type II diabetic models [PDF]

open access: yes, 2017
Corneal injury, accompanied by improper wound repair, is the 4th highest cause of preventable blindness according to the World Health Organization.
Kneer, Krisandra
core  

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