Publication
Title
A de novo gain-of-function mutation in SCN11A causes loss of pain perception
Author
Abstract
The sensation of pain protects the body from serious injury(1-3). Using exome sequencing, we identified a specific de novo missense mutation in SCN11A in individuals with the congenital inability to experience pain who suffer from recurrent tissue damage and severe mutilations. Heterozygous knock-in mice carrying the orthologous mutation showed reduced sensitivity to pain and self-inflicted tissue lesions, recapitulating aspects of the human phenotype. SCN11A encodes Na(v)1.9, a voltage-gated sodium ion channel that is primarily expressed in nociceptors, which function as key relay stations for the electrical transmission of pain signals from the periphery to the central nervous system(4,5). Mutant Na(v)1.9 channels displayed excessive activity at resting voltages, causing sustained depolarization of nociceptors, impaired generation of action potentials and aberrant synaptic transmission. The gain- of- function mechanism that underlies this channelopathy suggests an alternative way to modulate pain perception.
Language
English
Source (journal)
Nature genetics. - New York, N.Y.
Publication
New York, N.Y. : 2013
ISSN
1061-4036
Volume/pages
45:11(2013), p. 1399-+
ISI
000326384100024
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 16.12.2013
Last edited 16.11.2017
To cite this reference