Results 91 to 100 of about 53,107 (259)

A physical model of nicotinic ACh receptor kinetics [PDF]

arXiv, 2008
We present a new approach to nicotinic receptor kinetics and a new model explaining random variabilities in the duration of open events. The model gives new interpretation on brief and long receptor openings and predicts (for two identical binding sites) the presence of three components in the open time distribution: two brief and a long.
arxiv  

Arrestin‐centred interactions at the membrane and their conformational determinants

British Journal of Pharmacology, EarlyView.
Abstract More than 30 years after their discovery, arrestins are recognised multiprotein scaffolds that play essential roles in G protein‐coupled receptor (GPCR) regulation and signalling. Originally named for their capacity to hinder GPCR coupling to G proteins and facilitate receptor desensitisation, arrestins have emerged as key hubs for a myriad of
Owen Underwood, Raphael Silvanus Haider, Julie Sanchez, Meritxell Canals   +3 more
wiley   +1 more source

HL-1 cells express an inwardly rectifying K+ current activated via muscarinic receptors comparable to that in mouse atrial myocytes [PDF]

, 2010
An inwardly rectifying K^+ current is present in atrial cardiac myocytes that is activated by acetylcholine (I_{KACh}). Physiologically, activation of the current in the SA node is important in slowing the heart rate with increased parasympathetic tone ...
A Benians, A Benians, A Benians, A Noma, AM Tolkovsky, Andrew Tinker, C Cifelli, C Marionneau, CE Ford, CL Huang, D Dobrev, D Dobrev, EN Nikolov, G Krapivinsky, I Riven, I Savelieva, J Gehrmann, JB Blumer, JL Leaney, JL Leaney, K Hu, K Wickman, L Sartiani, LC Mace, M Baruscotti, M Bechem, M Nobles, M Xia, M Yamada, MC Wellner-Kienitz, MD Drici, Muriel Nobles, N Lavine, N Voigt, O Wiser, Q Zhang, RB Robinson, S Fujita, S Peleg, SM Clancy, SM White, Sonia Sebastian, WA Boyle, WC Claycomb, Z Zuberi   +44 more
core   +2 more sources

The Channel Capacity of Channelrhodopsin and Other Intensity-Driven Signal Transduction Receptors [PDF]

arXiv, 2018
Biological systems transduce signals from their surroundings through a myriad of pathways. In this paper, we describe signal transduction as a communication system: the signal transduction receptor acts as the receiver in this system, and can be modeled as a finite-state Markov chain with transition rates governed by the input signal.
arxiv  

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

British 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, Zeynep Aslıhan Durer, Beki Kan   +2 more
wiley   +1 more source

Acetylcholine-treated murine dendritic cells promote inflammatory lung injury [PDF]

, 2019
In recent years a non-neuronal cholinergic system has been described in immune cells, which is often usually activated during the course of inflammatory processes. To date, it is known that Acetylcholine (ACh), a neurotransmitter extensively expressed in
Alcain, Julieta María, Candolfi, Marianela, Geffner, Jorge Raúl, Gori, María Soledad, Jancic, Carolina Cristina, Moreno Ayala, Mariela Alejandra, Salamone, Gabriela Veronica, Vanzulli, Silvia, Vermeulen, Elba Monica   +8 more
core   +1 more source

Untangling direct and domain-mediated interactions between nicotinic acetylcholine receptors in DHA-rich membranes [PDF]

arXiv, 2019
At the neuromuscular junction (NMJ), the nicotinic acetylcholine receptor (nAChR) self-associates to give rise to rapid muscle movement. While lipid domains have maintained nAChR aggregates in-vitro, their specific roles in nAChR clustering are currently unknown. In the present study, we carried out coarse-grained molecular dynamics simulations (CG-MD)
arxiv  

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

British 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, Clauda Abboud, Dayana Abboud, Abdulrasheed O. Abdulrahman, Ana‐Nicoleta Bondar, Julie Dam, Zafiroula Georgoussi, Jesús Giraldo, Anemari Horvat, Christos Karoussiotis, Alba Paz‐Castro, Miriam Scarpa, Hannes Schihada, Nicole Scholz, Bilge Güvenc Tuna, Nina Vardjan   +15 more
wiley   +1 more source

Progress on the development of Class A GPCR‐biased ligands

British Journal of Pharmacology, EarlyView.
Class A G protein‐coupled receptors (GPCRs) continue to garner interest for their essential roles in cell signalling and their importance as drug targets. Although numerous drugs in the clinic target these receptors, over 60% GPCRs remain unexploited. Moreover, the adverse effects triggered by the available unbiased GPCR modulators, limit their use and
Paula Morales, Magdalena M. Scharf, Marcel Bermudez, Attila Egyed, Rafael Franco, Olivia K. Hansen, Nadine Jagerovic, Jan Jakubík, György M. Keserű, Dóra Judit Kiss, Pawel Kozielewicz, Olav Larsen, Maria Majellaro, Ana Mallo‐Abreu, Gemma Navarro, Rubén Prieto‐Díaz, Mette M. Rosenkilde, Eddy Sotelo, Holger Stark, Tobias Werner, Laura M. Wingler   +20 more
wiley   +1 more source

Alpha9 nicotinic acetylcholine receptors and the treatment of pain [PDF]

, 2009
Chronic pain is a vexing worldwide problem that causes substantial disability and consumes significant medical resources. Although there are numerous analgesic medications, these work through a small set of molecular mechanisms.
Absalom, Nathan, Chebib, Mary, Elgoyhen, Ana Belen, McIntosh, J. Michael, Vincler, Michelle   +4 more
core   +1 more source