Results 21 to 30 of about 46,183 (248)

Arrestins in Apoptosis [PDF]

open access: yes, 2013
Programmed cell death (apoptosis) is a coordinated set of events eventually leading to the massive activation of specialized proteases (caspases) that cleave numerous substrates, orchestrating fairly uniform biochemical changes than culminate in cellular suicide. Apoptosis can be triggered by a variety of stimuli, from external signals or growth factor
Seunghyi, Kook   +2 more
openaire   +2 more sources

Progressive reduction of its expression in rods reveals two pools of arrestin-1 in the outer segment with different roles in photoresponse recovery. [PDF]

open access: yesPLoS ONE, 2011
Light-induced rhodopsin signaling is turned off with sub-second kinetics by rhodopsin phosphorylation followed by arrestin-1 binding. To test the availability of the arrestin-1 pool in dark-adapted outer segment (OS) for rhodopsin shutoff, we measured ...
Whitney M Cleghorn   +7 more
doaj   +1 more source

β-arrestin functionally regulates the non-bleaching pigment parapinopsin in lamprey pineal. [PDF]

open access: yesPLoS ONE, 2011
The light response of vertebrate visual cells is achieved by light-sensing proteins such as opsin-based pigments as well as signal transduction proteins, including visual arrestin.
Emi Kawano-Yamashita   +5 more
doaj   +1 more source

Targeted disruption of β-arrestin 2-mediated signaling pathways by aptamer chimeras leads to inhibition of leukemic cell growth. [PDF]

open access: yesPLoS ONE, 2014
β-arrestins, ubiquitous cellular scaffolding proteins that act as signaling mediators of numerous critical cellular pathways, are attractive therapeutic targets because they promote tumorigenesis in several tumor models.
Jonathan W Kotula   +7 more
doaj   +1 more source

Prognostic value of β-Arrestins in combination with glucocorticoid receptor in epithelial ovarian cancer

open access: yesFrontiers in Oncology, 2023
Hormones may be key factors driving cancer development, and epidemiological findings suggest that steroid hormones play a crucial role in ovarian tumorigenesis.
Ji-Won Ryu   +12 more
doaj   +1 more source

Crystal structure of rhodopsin bound to arrestin by femtosecond X-ray laser. [PDF]

open access: yes, 2015
G-protein-coupled receptors (GPCRs) signal primarily through G proteins or arrestins. Arrestin binding to GPCRs blocks G protein interaction and redirects signalling to numerous G-protein-independent pathways.
Barty, Anton   +71 more
core   +1 more source

Targeted elimination of G proteins and arrestins defines their specific contributions to both intensity and duration of G protein-coupled receptor signalling [PDF]

open access: yes, 2016
G protein-coupled receptors (GPCRs) can initiate intracellular signalling cascades by coupling to an array of heterotrimeric G proteins and arrestin adaptor proteins. Understanding the contribution of each of these coupling options to GPCR signalling has
Alvarez-Curto, Elisa   +6 more
core   +1 more source

The effect of arrestin conformation on the recruitment of c-Raf1, MEK1, and ERK1/2 activation.

open access: yesPLoS ONE, 2011
Arrestins are multifunctional signaling adaptors originally discovered as proteins that "arrest" G protein activation by G protein-coupled receptors (GPCRs).
Sergio Coffa   +6 more
doaj   +1 more source

High Glucose Attenuates Cardioprotective Effects of Glucagon-Like Peptide-1 Through Induction of Mitochondria Dysfunction via Inhibition of β-Arrestin-Signaling

open access: yesFrontiers in Physiology, 2021
An increased vulnerability has been detected after ischemia/reperfusion injury in cardiomyocytes in diabetic patients. Glucagon-like peptide-1 (GLP-1) has been proven to have a notable cardioprotective effect in cardiomyocytes.
Xietian Pan, Chengxiang Li, Haokao Gao
doaj   +1 more source

β-Arrestin-Mediated Signaling Improves the Efficacy of Therapeutics

open access: yesJournal of Pharmacological Sciences, 2012
β-Arrestins (β-arrestin-1 and β-arrestin-2) were first identified as proteins that have the ability to desensitize G protein-coupled receptors (GPCRs). However, it has recently been found that β-arrestins can activate signaling pathways independent of G ...
Islam A.A.E.-H. Ibrahim, Hitoshi Kurose
doaj   +1 more source

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