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The TNF-α antagonist etanercept reverses age-related decreases in colonic SERT expression and faecal output in mice
Treatment for chronic constipation in older people is challenging and the condition has a major impact on quality of life. A lack of understanding about the causes of this condition has hampered the development of effective treatments. 5-HT is an important pro-kinetic agent in the colon. We examined...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5309893/ https://www.ncbi.nlm.nih.gov/pubmed/28198447 http://dx.doi.org/10.1038/srep42754 |
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author | Patel, Bhavik Anil Fidalgo, Sara Wang, Chunfang Parmar, Leena Mandona, Kasonde Panossian, Annabelle Flint, Melanie S. Ranson, Richard N. Saffrey, M. Jill Yeoman, Mark S. |
author_facet | Patel, Bhavik Anil Fidalgo, Sara Wang, Chunfang Parmar, Leena Mandona, Kasonde Panossian, Annabelle Flint, Melanie S. Ranson, Richard N. Saffrey, M. Jill Yeoman, Mark S. |
author_sort | Patel, Bhavik Anil |
collection | PubMed |
description | Treatment for chronic constipation in older people is challenging and the condition has a major impact on quality of life. A lack of understanding about the causes of this condition has hampered the development of effective treatments. 5-HT is an important pro-kinetic agent in the colon. We examined whether alterations in colonic 5-HT signalling underlie age–related changes in faecal output in mice and whether these changes were due to an increase in TNF-α. Components of the 5-HT signalling system (5-HT, 5-HIAA, SERT) and TNF-α expression were examined in the distal colon of 3, 12, 18 and 24-month old mice and faecal output and water content monitored under control conditions and following the administration of etanercept (TNF-α inhibitor; 1 mg Kg(−1)). Faecal output and water content were reduced in aged animals. Age increased mucosal 5-HT availability and TNF-α expression and decreased mucosal SERT expression and 5-HIAA. Etanercept treatment of old mice reversed these changes, suggesting that age-related changes in TNFα expression are an important regulator of mucosal 5-HT signalling and pellet output and water content in old mice. These data point to “anti-TNFα” drugs as potential treatments for age-related chronic constipation. |
format | Online Article Text |
id | pubmed-5309893 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-53098932017-02-22 The TNF-α antagonist etanercept reverses age-related decreases in colonic SERT expression and faecal output in mice Patel, Bhavik Anil Fidalgo, Sara Wang, Chunfang Parmar, Leena Mandona, Kasonde Panossian, Annabelle Flint, Melanie S. Ranson, Richard N. Saffrey, M. Jill Yeoman, Mark S. Sci Rep Article Treatment for chronic constipation in older people is challenging and the condition has a major impact on quality of life. A lack of understanding about the causes of this condition has hampered the development of effective treatments. 5-HT is an important pro-kinetic agent in the colon. We examined whether alterations in colonic 5-HT signalling underlie age–related changes in faecal output in mice and whether these changes were due to an increase in TNF-α. Components of the 5-HT signalling system (5-HT, 5-HIAA, SERT) and TNF-α expression were examined in the distal colon of 3, 12, 18 and 24-month old mice and faecal output and water content monitored under control conditions and following the administration of etanercept (TNF-α inhibitor; 1 mg Kg(−1)). Faecal output and water content were reduced in aged animals. Age increased mucosal 5-HT availability and TNF-α expression and decreased mucosal SERT expression and 5-HIAA. Etanercept treatment of old mice reversed these changes, suggesting that age-related changes in TNFα expression are an important regulator of mucosal 5-HT signalling and pellet output and water content in old mice. These data point to “anti-TNFα” drugs as potential treatments for age-related chronic constipation. Nature Publishing Group 2017-02-15 /pmc/articles/PMC5309893/ /pubmed/28198447 http://dx.doi.org/10.1038/srep42754 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Patel, Bhavik Anil Fidalgo, Sara Wang, Chunfang Parmar, Leena Mandona, Kasonde Panossian, Annabelle Flint, Melanie S. Ranson, Richard N. Saffrey, M. Jill Yeoman, Mark S. The TNF-α antagonist etanercept reverses age-related decreases in colonic SERT expression and faecal output in mice |
title | The TNF-α antagonist etanercept reverses age-related decreases in colonic SERT expression and faecal output in mice |
title_full | The TNF-α antagonist etanercept reverses age-related decreases in colonic SERT expression and faecal output in mice |
title_fullStr | The TNF-α antagonist etanercept reverses age-related decreases in colonic SERT expression and faecal output in mice |
title_full_unstemmed | The TNF-α antagonist etanercept reverses age-related decreases in colonic SERT expression and faecal output in mice |
title_short | The TNF-α antagonist etanercept reverses age-related decreases in colonic SERT expression and faecal output in mice |
title_sort | tnf-α antagonist etanercept reverses age-related decreases in colonic sert expression and faecal output in mice |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5309893/ https://www.ncbi.nlm.nih.gov/pubmed/28198447 http://dx.doi.org/10.1038/srep42754 |
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