TRPM8 mechanism of autonomic nerve response to cold in respiratory airway

<p>Abstract</p> <p>Breathing cold air without proper temperature exchange can induce strong respiratory autonomic responses including cough, airway constriction and mucosal secretion, and can exacerbate existing asthma conditions and even directly trigger an asthma attack. Vagal af...

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Main Authors: Wang Cong-Yi, Tominaga Makoto, Johnson Richard D, Chen Meng, Ling Jennifer X, Xing Hong, Gu Jianguo
Format: Article
Language:English
Published: SAGE Publishing 2008-06-01
Series:Molecular Pain
Online Access:http://www.molecularpain.com/content/4/1/22
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author Wang Cong-Yi
Tominaga Makoto
Johnson Richard D
Chen Meng
Ling Jennifer X
Xing Hong
Gu Jianguo
author_facet Wang Cong-Yi
Tominaga Makoto
Johnson Richard D
Chen Meng
Ling Jennifer X
Xing Hong
Gu Jianguo
author_sort Wang Cong-Yi
collection DOAJ
description <p>Abstract</p> <p>Breathing cold air without proper temperature exchange can induce strong respiratory autonomic responses including cough, airway constriction and mucosal secretion, and can exacerbate existing asthma conditions and even directly trigger an asthma attack. Vagal afferent fiber is thought to be involved in the cold-induced respiratory responses through autonomic nerve reflex. However, molecular mechanisms by which vagal afferent fibers are excited by cold remain unknown. Using retrograde labeling, immunostaining, calcium imaging, and electrophysiological recordings, here we show that a subpopulation of airway vagal afferent nerves express TRPM8 receptors and that activation of TRPM8 receptors by cold excites these airway autonomic nerves. Thus activation of TRPM8 receptors may provoke autonomic nerve reflex to increase airway resistance. This putative autonomic response may be associated with cold-induced exacerbation of asthma and other pulmonary disorders, making TRPM8 receptors a possible target for prevention of cold-associated respiratory disorders.</p>
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spelling doaj.art-0306d03e729940a8b03dfc5405928e942022-12-22T00:53:29ZengSAGE PublishingMolecular Pain1744-80692008-06-01412210.1186/1744-8069-4-22TRPM8 mechanism of autonomic nerve response to cold in respiratory airwayWang Cong-YiTominaga MakotoJohnson Richard DChen MengLing Jennifer XXing HongGu Jianguo<p>Abstract</p> <p>Breathing cold air without proper temperature exchange can induce strong respiratory autonomic responses including cough, airway constriction and mucosal secretion, and can exacerbate existing asthma conditions and even directly trigger an asthma attack. Vagal afferent fiber is thought to be involved in the cold-induced respiratory responses through autonomic nerve reflex. However, molecular mechanisms by which vagal afferent fibers are excited by cold remain unknown. Using retrograde labeling, immunostaining, calcium imaging, and electrophysiological recordings, here we show that a subpopulation of airway vagal afferent nerves express TRPM8 receptors and that activation of TRPM8 receptors by cold excites these airway autonomic nerves. Thus activation of TRPM8 receptors may provoke autonomic nerve reflex to increase airway resistance. This putative autonomic response may be associated with cold-induced exacerbation of asthma and other pulmonary disorders, making TRPM8 receptors a possible target for prevention of cold-associated respiratory disorders.</p>http://www.molecularpain.com/content/4/1/22
spellingShingle Wang Cong-Yi
Tominaga Makoto
Johnson Richard D
Chen Meng
Ling Jennifer X
Xing Hong
Gu Jianguo
TRPM8 mechanism of autonomic nerve response to cold in respiratory airway
Molecular Pain
title TRPM8 mechanism of autonomic nerve response to cold in respiratory airway
title_full TRPM8 mechanism of autonomic nerve response to cold in respiratory airway
title_fullStr TRPM8 mechanism of autonomic nerve response to cold in respiratory airway
title_full_unstemmed TRPM8 mechanism of autonomic nerve response to cold in respiratory airway
title_short TRPM8 mechanism of autonomic nerve response to cold in respiratory airway
title_sort trpm8 mechanism of autonomic nerve response to cold in respiratory airway
url http://www.molecularpain.com/content/4/1/22
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