ArticleJournal of neurochemistry2009
A novel fluorescent alpha-conotoxin for the study of alpha7 nicotinic acetylcholine receptors.
Article in Journal of neurochemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
22 citing papers in PubMed, 33 citations in OpenAlex.
- Putative α7-selective ligands interact with α9-containing nicotinic acetylcholine receptors and modulate immune functions of human mononuclear phagocytes.Frontiers in immunology · 2026Article
- The ATP-mediated cytokine release by macrophages is down-modulated by unconventional α9* nicotinic acetylcholine receptors.Frontiers in immunology · 2025Article
- Single Amino Acid Substitution in Loop1 Switches the Selectivity of α-Conotoxin RegIIA towards the α7 Nicotinic Acetylcholine Receptor.Marine drugs · 2024Article
- Shining a Light on Venom-Peptide Receptors: Venom Peptides as Targeted Agents for In Vivo Molecular Imaging.Toxins · 2024Review
- Fluorescently Labeled α-Conotoxin TxID, a New Probe for α3β4 Neuronal Nicotinic Acetylcholine Receptors.Marine drugs · 2022Article
- From 2-Triethylammonium Ethyl Ether of 4-Stilbenol (MG624) to Selective Small-Molecule Antagonists of Human α9α10 Nicotinic Receptor by Modifications at the Ammonium Ethyl Residue.Journal of medicinal chemistry · 2022Article
- Comparison of the Anti-inflammatory Properties of Two Nicotinic Acetylcholine Receptor Ligands, Phosphocholine andFrontiers in cellular neuroscience · 2022Article
- α-Conotoxins and α-Cobratoxin Promote, while Lipoxygenase and Cyclooxygenase Inhibitors Suppress the Proliferation of Glioma C6 Cells.Marine drugs · 2021Article
- On-resin strategy to label α-conotoxins: Cy5-RgIA, a potent α9α10 nicotinic acetylcholine receptor imaging probe.Australian journal of chemistry · 2020Article
- α-Conotoxin VnIB from Conus ventricosus is a potent and selective antagonist of α6β4* nicotinic acetylcholine receptors.Neuropharmacology · 2019Article
- α9- and α7-containing receptors mediate the pro-proliferative effects of nicotine in the A549 adenocarcinoma cell line.British journal of pharmacology · 2018Article
- Development of fluorescence imaging probes for nicotinic acetylcholine α4β2Bioorganic & medicinal chemistry letters · 2018Article
- Conopeptides [V11L;V16D]ArIB and RgIA4: Powerful Tools for the Identification of Novel Nicotinic Acetylcholine Receptors in Monocytes.Frontiers in pharmacology · 2018Article
- Therapeutic concentrations of varenicline in the presence of nicotine increase action potential firing in human adrenal chromaffin cells.Journal of neurochemistry · 2017Article
- α-Conotoxins Identify the α3β4* Subtype as the Predominant Nicotinic Acetylcholine Receptor Expressed in Human Adrenal Chromaffin Cells.Molecular pharmacology · 2015Article
- Article
- Positional scanning mutagenesis of α-conotoxin PeIA identifies critical residues that confer potency and selectivity for α6/α3β2β3 and α3β2 nicotinic acetylcholine receptors.The Journal of biological chemistry · 2013Article
- α-Conotoxin PeIA[S9H,V10A,E14N] potently and selectively blocks α6β2β3 versus α6β4 nicotinic acetylcholine receptors.Molecular pharmacology · 2012Article
- Nicotinic acetylcholine receptors in dorsal root ganglion neurons include the α6β4* subtype.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2012Article
- Onset of cholinergic efferent synaptic function in sensory hair cells of the rat cochlea.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2011Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
Abstract
Homomeric alpha7 nicotinic acetylcholine receptors are a well-established, pharmacologically distinct subtype. The more recently identified alpha9 subunit can also form functional homopentamers as well as alpha9alpha10 heteropentamers. Current fluorescent probes for alpha7 nicotinic ACh receptors are derived from alpha-bungarotoxin (alpha-BgTx). However, alpha-BgTx also binds to alpha9* and alpha1* receptors which are coexpressed with alpha7 in multiple tissues. We used an analog of alpha-conotoxin ArIB to develop a highly selective fluorescent probe for alpha7 receptors. This fluorescent alpha-conotoxin, Cy3-ArIB[V11L;V16A], blocked ACh-evoked alpha7 currents in Xenopus laevis oocytes with an IC(50) value of 2.0 nM. Observed rates of blockade were minute-scale with recovery from blockade even slower. Unlike FITC-conjugated alpha-BgTx, Cy3-ArIB[V11L;V16A] did not block alpha9alpha10 or alpha1beta1deltaepsilon receptors. In competition binding assays, Cy3-ArIB[V11L;V16A] potently displaced [(125)I]-alpha-BgTx binding to mouse hippocampal membranes with a K(i) value of 21 nM. Application of Cy3-ArIB[V11L;V16A] resulted in specific punctate labeling of KXalpha7R1 cells but not KXalpha3beta2R4, KXalpha3beta4R2, or KXalpha4beta2R2 cells. This labeling could be abolished by pre-treatment with alpha-cobratoxin. Thus, Cy3-ArIB[V11L;V16A] is a novel and selective fluorescent probe for alpha7 receptors.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.