Results 31 to 40 of about 5,216 (132)

Identification of Pannexins in Rat Nasal Mucosa

open access: yesAllergy & Rhinology, 2013
Pannexins are a second family of gap-junction proteins in vertebrates, classified as pannexin-1, pannexin-2, and pannexin-3. Pannexin-1 is one of the candidates for channel-mediated ATP release into the extracellular space.
Toyoaki Ohbuchi M.D.   +7 more
doaj   +1 more source

Perspectives on the role of Pannexin 1 in neural precursor cell biology

open access: yesNeural Regeneration Research, 2016
We recently reported that targeted deletion of Pannexin 1 in neural precursor cells of the ventricular zone impairs the maintenance of these cells in healthy and stroke-injured brain. Here we frame this exciting new finding in the context of our previous
Juan C Sanchez-Arias   +2 more
doaj   +1 more source

Single-cell dynamics of pannexin-1-facilitated programmed ATP loss during apoptosis

open access: yeseLife, 2020
ATP is essential for all living cells. However, how dead cells lose ATP has not been well investigated. In this study, we developed new FRET biosensors for dual imaging of intracellular ATP level and caspase-3 activity in single apoptotic cultured human ...
Hiromi Imamura   +8 more
doaj   +1 more source

Chemotherapeutic Drugs Induce ATP Release via Caspase-gated Pannexin-1 Channels and a Caspase/Pannexin-1-independent Mechanism [PDF]

open access: yesJournal of Biological Chemistry, 2014
Anti-tumor immune responses have been linked to the regulated release of ATP from apoptotic cancer cells to engage P2 purinergic receptor signaling cascades in nearby leukocytes. We used the Jurkat T cell acute lymphocytic leukemia model to characterize the role of pannexin-1 (Panx1) channels in the release of nucleotides during chemotherapeutic drug ...
Andrea, Boyd-Tressler   +3 more
openaire   +2 more sources

Distinct Molecular Mechanisms Underlying Potassium Efflux for NLRP3 Inflammasome Activation

open access: yesFrontiers in Immunology, 2020
The NLRP3 inflammasome is a core component of innate immunity, and dysregulation of NLRP3 inflammasome involves developing autoimmune, metabolic, and neurodegenerative diseases.
Ziwei Xu   +5 more
doaj   +1 more source

Extracellular ATP hydrolysis inhibits synaptic transmission by increasing ph buffering in the synaptic cleft. [PDF]

open access: yesPLoS Biology, 2014
Neuronal computations strongly depend on inhibitory interactions. One such example occurs at the first retinal synapse, where horizontal cells inhibit photoreceptors.
Rozan Vroman   +6 more
doaj   +1 more source

Pannexin 1: The Molecular Substrate of Astrocyte “Hemichannels” [PDF]

open access: yesThe Journal of Neuroscience, 2009
Purinergic signaling plays distinct and important roles in the CNS, including the transmission of calcium signals between astrocytes. Gap junction hemichannels are among the mechanisms proposed by which astrocytes might release ATP; however, whether the gap junction protein connexin43 (Cx43) forms these “hemichannels” remains controversial. Recently, a
Rodolfo, Iglesias   +4 more
openaire   +2 more sources

Taking a close look at a large-pore channel

open access: yeseLife, 2020
The structure of pannexin 1, a channel protein with a large pore, has been determined for the first time.
Pablo S Gaete, Jorge E Contreras
doaj   +1 more source

Neurodegeneration in Multiple Sclerosis: The Role of Nrf2-Dependent Pathways

open access: yesAntioxidants, 2022
Multiple sclerosis (MS) encompasses a chronic, irreversible, and predominantly immune-mediated disease of the central nervous system that leads to axonal degeneration, neuronal death, and several neurological symptoms.
Paloma P. Maldonado   +5 more
doaj   +1 more source

Pannexin 1 and Adipose Tissue [PDF]

open access: yes, 2017
Defective glucose uptake in adipocytes leads to impaired metabolic homeostasis and insulin resistance, hallmarks of type 2 diabetes. Extracellular ATP-derived nucleotides and nucleosides are important regulators of adipocyte function, but the pathway for controlled ATP release from adipocytes is unknown. Here, we investigated whether Pannexin 1 (Panx1)
openaire   +1 more source

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