2007
DOI: 10.1073/pnas.0611364104
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A-803467, a potent and selective Na v 1.8 sodium channel blocker, attenuates neuropathic and inflammatory pain in the rat

Abstract: Activation of tetrodotoxin-resistant sodium channels contributes to action potential electrogenesis in neurons. Antisense oligonucleotide studies directed against Nav1.8 have shown that this channel contributes to experimental inflammatory and neuropathic pain. We report here the discovery of A-803467, a sodium channel blocker that potently blocks tetrodotoxin-resistant currents (IC50 ‫؍‬ 140 nM) and the generation of spontaneous and electrically evoked action potentials in vitro in rat dorsal root ganglion ne… Show more

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Cited by 464 publications
(407 citation statements)
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References 38 publications
(66 reference statements)
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“…Ein Zusammenhang mit der Beobachtung einer "Erwärmung des eiskalten Phantombeins" durch die Ambroxolanwendung am Stumpf von Patient 2 bleibt offen. Auch in Tierversuchen ist eine Na v 1.8-Blockade klar analgetisch wirksam [11,20].…”
Section: Pharmakologie Natriumkanäle Und Analgetische Wirkungenunclassified
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“…Ein Zusammenhang mit der Beobachtung einer "Erwärmung des eiskalten Phantombeins" durch die Ambroxolanwendung am Stumpf von Patient 2 bleibt offen. Auch in Tierversuchen ist eine Na v 1.8-Blockade klar analgetisch wirksam [11,20].…”
Section: Pharmakologie Natriumkanäle Und Analgetische Wirkungenunclassified
“…Die Na v 1.8-Blockade, z. B. durch Ambroxol, wird letzlich auch deshalb als Option zur Behandlung neuropathischer Schmerzen betrachtet, weil Untersuchungen mit Na v 1.8-freien Mäusen und Na v 1.8-blockierenden Substanzen eine geringere mechanische, thermische und viszerale Übererregbarkeit im Tiermodel belegen [1,4,11,18,20,21,45,46].…”
Section: Na V 18-expressionunclassified
“…Nav1.7 target anesthetics such as lidocaine have been found to be minimally effective at blocking cough. A lot of recent interest has been generated in Nav 1.8 as a target for both inflammatory and neuropathic pain with a few inhibitors being used in preclinical target validation [5557]. Whether targeting Nav1.8 or Nav1.9 are effective at blocking unhelpful cough remains to be investigated.…”
Section: Introductionmentioning
confidence: 99%
“…A‐803467, as a selective Na v 1.8 blocker, is used in alleviating Na v 1.8‐involved neuropathic pain. In recombinant HEK293 cells, A‐803467 was blocked human Na v 1.8 (IC 50 =8 nmol/L), and was >100‐fold selective versus human Nav1.2, Nav1.3, Nav1.5, and Nav1.7 (IC 50 >1 μmol/L) 35. In the present study, TSA201 cells were transfected with SCN5A ‐ SCN10A ‐ SCN3B , A‐803467 at 100 nmol/L potently inhibited I Na,P by 42.02%, and it suppressed more in I Na,L by 68.57%.…”
Section: Discussionmentioning
confidence: 99%