Pharmacological activation of the EDA/EDAR signaling pathway restores salivary gland function following radiation-induced damage.

Radiotherapy of head and neck cancers often results in collateral damage to adjacent salivary glands associated with clinically significant hyposalivation and xerostomia. Due to the reduced capacity of salivary glands to regenerate, hyposalivation is treated by substitution with artificial saliva, r...

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Main Authors: Grace Hill, Denis Headon, Zoey I Harris, Kenneth Huttner, Kirsten H Limesand
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4237357?pdf=render
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author Grace Hill
Denis Headon
Zoey I Harris
Kenneth Huttner
Kirsten H Limesand
author_facet Grace Hill
Denis Headon
Zoey I Harris
Kenneth Huttner
Kirsten H Limesand
author_sort Grace Hill
collection DOAJ
description Radiotherapy of head and neck cancers often results in collateral damage to adjacent salivary glands associated with clinically significant hyposalivation and xerostomia. Due to the reduced capacity of salivary glands to regenerate, hyposalivation is treated by substitution with artificial saliva, rather than through functional restoration of the glands. During embryogenesis, the ectodysplasin/ectodysplasin receptor (EDA/EDAR) signaling pathway is a critical element in the development and growth of salivary glands. We have assessed the effects of pharmacological activation of this pathway in a mouse model of radiation-induced salivary gland dysfunction. We report that post-irradiation administration of an EDAR-agonist monoclonal antibody (mAbEDAR1) normalizes function of radiation damaged adult salivary glands as determined by stimulated salivary flow rates. In addition, salivary gland structure and homeostasis is restored to pre-irradiation levels. These results suggest that transient activation of pathways involved in salivary gland development could facilitate regeneration and restoration of function following damage.
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spelling doaj.art-3f43370647974be0a4a6a283aacf9f852022-12-21T20:32:28ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-01911e11284010.1371/journal.pone.0112840Pharmacological activation of the EDA/EDAR signaling pathway restores salivary gland function following radiation-induced damage.Grace HillDenis HeadonZoey I HarrisKenneth HuttnerKirsten H LimesandRadiotherapy of head and neck cancers often results in collateral damage to adjacent salivary glands associated with clinically significant hyposalivation and xerostomia. Due to the reduced capacity of salivary glands to regenerate, hyposalivation is treated by substitution with artificial saliva, rather than through functional restoration of the glands. During embryogenesis, the ectodysplasin/ectodysplasin receptor (EDA/EDAR) signaling pathway is a critical element in the development and growth of salivary glands. We have assessed the effects of pharmacological activation of this pathway in a mouse model of radiation-induced salivary gland dysfunction. We report that post-irradiation administration of an EDAR-agonist monoclonal antibody (mAbEDAR1) normalizes function of radiation damaged adult salivary glands as determined by stimulated salivary flow rates. In addition, salivary gland structure and homeostasis is restored to pre-irradiation levels. These results suggest that transient activation of pathways involved in salivary gland development could facilitate regeneration and restoration of function following damage.http://europepmc.org/articles/PMC4237357?pdf=render
spellingShingle Grace Hill
Denis Headon
Zoey I Harris
Kenneth Huttner
Kirsten H Limesand
Pharmacological activation of the EDA/EDAR signaling pathway restores salivary gland function following radiation-induced damage.
PLoS ONE
title Pharmacological activation of the EDA/EDAR signaling pathway restores salivary gland function following radiation-induced damage.
title_full Pharmacological activation of the EDA/EDAR signaling pathway restores salivary gland function following radiation-induced damage.
title_fullStr Pharmacological activation of the EDA/EDAR signaling pathway restores salivary gland function following radiation-induced damage.
title_full_unstemmed Pharmacological activation of the EDA/EDAR signaling pathway restores salivary gland function following radiation-induced damage.
title_short Pharmacological activation of the EDA/EDAR signaling pathway restores salivary gland function following radiation-induced damage.
title_sort pharmacological activation of the eda edar signaling pathway restores salivary gland function following radiation induced damage
url http://europepmc.org/articles/PMC4237357?pdf=render
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