Results 61 to 70 of about 103,968 (278)

Tonic inhibition originates from synapses close to the soma

open access: yesNeuron, 1995
Central neurons are subject to a tonic barrage of randomly occurring spontaneous inhibitory events (mIP-SCs) resulting from the action potential-independent release of gamma-aminobutyric acid (GABA). Do the terminals making synapses onto somatic versus dendritic sites, which arise from specific populations of interneurons, differ in their ability to ...
Soltesz, I, Smetters, D.K, Mody, I
openaire   +2 more sources

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

open access: yesMolecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova   +25 more
wiley   +1 more source

Pharmacological analysis of the activation and receptor properties of the tonic GABA(C)R current in retinal bipolar cell terminals.

open access: yesPLoS ONE, 2011
GABAergic inhibition in the central nervous system (CNS) can occur via rapid, transient postsynaptic currents and via a tonic increase in membrane conductance, mediated by synaptic and extrasynaptic GABA(A) receptors (GABA(A)Rs) respectively.
Stefanie M Jones, Mary J Palmer
doaj   +1 more source

Transient mTOR inhibition rescues 4-1BB CAR-Tregs from tonic signal-induced dysfunction

open access: yesNature Communications, 2021
Chimeric antigen receptor engineering in T cells has been shown to be of great potential therapeutic benefit in a range of immune pathologies, although the functionality of such cell therapies can be limited due to tonic signalling and the induction of ...
Baptiste Lamarthée   +22 more
doaj   +1 more source

Negative modulation of the GABAAρ1 receptor function by l-cysteine [PDF]

open access: yes, 2017
l-Cysteine is an endogenous sulfur-containing amino acid with multiple and varied roles in the central nervous system, including neuroprotection and the maintenance of the redox balance.
Beltrán González, Andrea Natalia   +2 more
core   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

open access: yesMolecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau   +36 more
wiley   +1 more source

Regulation of output spike patterns by phasic inhibition in cerebellar granule cells

open access: yesFrontiers in Cellular Neuroscience, 2014
The complex interplay of multiple molecular mechanisms taking part to synaptic integration is hard to disentangle experimentally. Therefore, we developed a biologically realistic computational model based on the rich set of data characterizing the ...
Thierry Ralph Nieus   +4 more
doaj   +1 more source

Pathophysiological role of extrasynaptic GABAA receptors in typical absence epilepsy [PDF]

open access: yes, 2011
GABA is the principal inhibitory neurotransmitter in the mammalian CNS. It acts via two classes of receptors, the GABAA, a ligand gated ion channel (ionotropic receptor) and the metabotropic G-protein coupled GABAB receptor.
Crunelli, Vincenzo   +2 more
core  

Identifying transcription factors controlling the basal expression of human MRP4 highlights a substantial role for Sp1

open access: yesFEBS Open Bio, EarlyView.
The MRP4 transporter exports several drugs and signaling molecules. Here, we identified key promoter elements regulating basal MRP4 expression. Using reporter assays, we defined a conserved region with essential Sp1 and contributory Ets sites, which controlled basal MRP4 expression.
Debora Singer   +7 more
wiley   +1 more source

Tonic zinc inhibits spontaneous firing in dorsal cochlear nucleus principal neurons by enhancing glycinergic neurotransmission

open access: yesNeurobiology of Disease, 2015
In many synapses of the CNS, mobile zinc is packaged into glutamatergic vesicles and co-released with glutamate during neurotransmission. Following synaptic release, the mobilized zinc modulates ligand- and voltage-gated channels and receptors ...
Tamara Perez-Rosello   +4 more
doaj   +1 more source

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