2008
DOI: 10.1002/ana.21527
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Multiple sodium channel isoforms and mitogen‐activated protein kinases are present in painful human neuromas

Abstract: These results demonstrate that multiple sodium channel isoforms (Nav1.3, Nav1.7, and Nav1.8), as well as activated p38 and ERK1/2 MAP kinases, are expressed in painful human neuromas, indicating that these molecules merit study as possible therapeutic targets for the treatment of pain associated with traumatic neuromas.

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Cited by 227 publications
(193 citation statements)
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“…Ectopic activity in damaged and dysfunctional sensory afferents has a role in the generation and maintenance of pain, and one of the mechanisms underlying this ectopic firing involves abnormal modulation of voltage-gated sodium channels 21,22 . Moreover, there is evidence that damaged sensory afferents such as those found in neuromas secondary to trauma, amputation, compression, or surgery show overexpression of Nav1.3, Nav1.7, and Nav1.8 23 . We postulate that the response to ttx is associated with the expression of voltage-gated sodium channels (Na v ) and not with the characteristics or causes of the pain.…”
Section: Discussionmentioning
confidence: 99%
“…Ectopic activity in damaged and dysfunctional sensory afferents has a role in the generation and maintenance of pain, and one of the mechanisms underlying this ectopic firing involves abnormal modulation of voltage-gated sodium channels 21,22 . Moreover, there is evidence that damaged sensory afferents such as those found in neuromas secondary to trauma, amputation, compression, or surgery show overexpression of Nav1.3, Nav1.7, and Nav1.8 23 . We postulate that the response to ttx is associated with the expression of voltage-gated sodium channels (Na v ) and not with the characteristics or causes of the pain.…”
Section: Discussionmentioning
confidence: 99%
“…Four main pathways are associated with EGFR signalling: Jak/Stat, PLCc, PI3-K/Akt and ERK1/2 (Oda et al, 2005). Of these, we focused on the PI3-K/Akt and ERK1/2 signalling cascades, which modulate ion channels in excitable cells (Adams et al, 2000;Black et al, 2008;Persson et al, 2011;Qiu et al, 2003;Smani et al, 2010;Stamboulian et al, 2010;Woodall et al, 2008) and are intimately involved in cancer progression (Frémin and Meloche, 2010;Keshet and Seger, 2010;Li et al, 2005;Stahl et al, 2004). Western immunoblotting confirmed basal activity of both phospho-ERK1/2 and phospho-Akt in H460 cells (Fig.…”
Section: Na V 17 Expression Is Enhanced In Cancerous Lung Tissuementioning
confidence: 94%
“…Der Subtyp Na v 1.8 wird selektiv in nozizeptiven sensorischen Neuronen exprimiert [2,6,35,52], gesteigert aber in Nervenschmerzmodellen [15,44] und auch beim Menschen bei neuropathischem Schmerz [24,50]. Bedeutsam soll dies ferner beim Tier wie beim Menschen bei der Spontanaktivität in Neuromen sein [5,24,36], was bei unserem Patienten mit Amputation (Kasuistik 2) eine Rolle gespielt haben könnte. Auch die Attackenreduktion bei jedem unserer 5 betroffenen Patienten ist so eventuell erklärbar.…”
Section: Na V 18-expressionunclassified