Results 41 to 50 of about 925,689 (154)

Inflammation Regulation via an Agonist and Antagonists of α7 Nicotinic Acetylcholine Receptors in RAW264.7 Macrophages

open access: yesMarine Drugs, 2022
The α7 nicotinic acetylcholine receptor (nAChR) is widely distributed in the central and peripheral nervous systems and is closely related to a variety of nervous system diseases and inflammatory responses.
Yao Tan   +5 more
doaj   +1 more source

Interactions of Globular and Ribbon [γ4E]GID with α4β2 Neuronal Nicotinic Acetylcholine Receptor

open access: yesMarine Drugs, 2021
The α4β2 nAChR is implicated in a range of diseases and disorders including nicotine addiction, epilepsy and Parkinson’s and Alzheimer’s diseases. Designing α4β2 nAChR selective inhibitors could help define the role of the α4β2 nAChR in such disease ...
Xiaosa Wu, David J. Craik, Quentin Kaas
doaj   +1 more source

α-Conotoxin ImI Incorporating Stable Cystathionine Bridges Maintains Full Potency and Identical Three-Dimensional Structure

open access: yes, 2016
The two disulfide bonds of α-conotoxin ImI, a peptide antagonist of the α7 nicotinic acetylcholine receptor (nAChR), were systematically replaced with isosteric redox-stable cystathionine thioethers. Regioselective thioether formation was accomplished on
Paul F. Alewood (1520788)   +5 more
core   +2 more sources

Solution conformation of α-conotoxin GIC, a novel potent antagonist of α3β2 nicotinic acetylcholine receptors

open access: yes, 2004
α-Conotoxin GIC is a 16-residue peptide isolated from the venom of the cone snail Conus geographus. α-Conotoxin GIC potently blocks the α3β2 subtype of human nicotinic acetylcholine receptor, showing a high selectivity for neuronal versus muscle subtype [
Do-Hyoung Kim   +4 more
core   +1 more source

Sensitive Detection of α-Conotoxin GI in Human Plasma Using a Solid-Phase Extraction Column and LC-MS/MS

open access: yesToxins, 2017
α-conotoxin GI, a short peptide toxin in the venom of Conus geographus, is composed of 13 amino acids and two disulfide bonds. It is the most toxic component of Conus geographus venom with estimated lethal doses of 0.029–0.038 mg/kg for humans.
Shuo Yu   +3 more
doaj   +1 more source

Characterisation of a Novel A-Superfamily Conotoxin

open access: yesBiomedicines, 2020
Conopeptides belonging to the A-superfamily from the venomous molluscs, Conus, are typically α-conotoxins. The α-conotoxins are of interest as therapeutic leads and pharmacological tools due to their selectivity and potency at nicotinic acetylcholine ...
David T. Wilson   +6 more
doaj   +1 more source

α-Conotoxins and α-Cobratoxin Promote, while Lipoxygenase and Cyclooxygenase Inhibitors Suppress the Proliferation of Glioma C6 Cells

open access: yesMarine Drugs, 2021
Among the brain tumors, glioma is the most common. In general, different biochemical mechanisms, involving nicotinic acetylcholine receptors (nAChRs) and the arachidonic acid cascade are involved in oncogenesis.
Tatiana I. Terpinskaya   +10 more
doaj   +1 more source

Cancer pain: current practice and emerging targets

open access: yesBritish Journal of Pharmacology, EarlyView.
Cancer pain (CP) arises from a complex interplay between the tumour and its microenvironment. Many patients experience a mixed pain phenotype that encompasses nociceptive, neuropathic and neuroinflammatory mechanisms, and vary across tumour type and disease stage. Despite decades of intensive research, the mainstay of cancer pain treatment is still non‐
Yi Ye   +5 more
wiley   +1 more source

Stability and Structure-Forming Properties of the Two Disulfide Bonds of α-Conotoxin GI

open access: yes, 2016
α-Conotoxin GI is a 13 residue snail toxin peptide cross-linked by Cys2−Cys7 and Cys3−Cys13 disulfide bridges. The formation of the two disulfide bonds by thiol/disulfide exchange with oxidized glutathione (GSSG) has been characterized.
Andreas Kaerner (2140825)   +1 more
core   +1 more source

Venom duct origins of prey capture and defensive conotoxins in piscivorous Conus striatus

open access: yesScientific Reports, 2021
The venom duct origins of predatory and defensive venoms has not been studied for hook-and-line fish hunting cone snails despite the pharmacological importance of their venoms. To better understand the biochemistry and evolution of injected predatory and
S. W. A. Himaya   +5 more
doaj   +1 more source

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