The Role of Receptor for Advanced Glycation End Products in Airway Inflammation in CF and CF related Diabetes

Cystic Fibrosis (CF) is often accompanied by diabetes leading to worsening lung function, the reason for which is unclear. The receptor for advanced-glycation-end-products (RAGE) regulates immune responses and inflammation and has been linked to diabetes and possibly CF. We performed a pilot study t...

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Main Authors: Mulrennan, S., Baltic, S., Aggarwal, S., Wood, J., Miranda, Alina, Frost, F., Kaye, J., Thompson, P.
Format: Journal Article
Published: Nature Publishing Group 2015
Online Access:http://hdl.handle.net/20.500.11937/32583
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author Mulrennan, S.
Baltic, S.
Aggarwal, S.
Wood, J.
Miranda, Alina
Frost, F.
Kaye, J.
Thompson, P.
author_facet Mulrennan, S.
Baltic, S.
Aggarwal, S.
Wood, J.
Miranda, Alina
Frost, F.
Kaye, J.
Thompson, P.
author_sort Mulrennan, S.
building Curtin Institutional Repository
collection Online Access
description Cystic Fibrosis (CF) is often accompanied by diabetes leading to worsening lung function, the reason for which is unclear. The receptor for advanced-glycation-end-products (RAGE) regulates immune responses and inflammation and has been linked to diabetes and possibly CF. We performed a pilot study to determine if CF and CF-related diabetes (CFRD) are associated with enhanced RAGE expression. Full length (fl)RAGE, soluble (s)RAGE, endogenous soluble (es)RAGE, S100A12 (enRAGE) and advanced-glycation-end-products (AGE) expression was assessed in serum, white blood cells and sputum of patients with CF; diabetes; CFRD and healthy subjects. Sputum enRAGE/sRAGE ratios were high in CF but particularly in CFRD which negatively correlated with % predicted FEV1. Serum AGE and AGE/sRAGE ratios were high in diabetics but not in CF. A complex, multifaceted approach was used to assess the role of RAGE and its ligands which is fundamental to determining their impact on airway inflammation. There is a clear association between RAGE activity in the airways of CF and CFRD patients that is not evident in the vascular compartment and correlates with lung function, in contrast to diabetes. This strongly suggests a role for RAGE in contributing to the inflammatory overdrive seen in CF and to a greater extent in CFRD.
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spelling curtin-20.500.11937-325832017-09-13T15:23:54Z The Role of Receptor for Advanced Glycation End Products in Airway Inflammation in CF and CF related Diabetes Mulrennan, S. Baltic, S. Aggarwal, S. Wood, J. Miranda, Alina Frost, F. Kaye, J. Thompson, P. Cystic Fibrosis (CF) is often accompanied by diabetes leading to worsening lung function, the reason for which is unclear. The receptor for advanced-glycation-end-products (RAGE) regulates immune responses and inflammation and has been linked to diabetes and possibly CF. We performed a pilot study to determine if CF and CF-related diabetes (CFRD) are associated with enhanced RAGE expression. Full length (fl)RAGE, soluble (s)RAGE, endogenous soluble (es)RAGE, S100A12 (enRAGE) and advanced-glycation-end-products (AGE) expression was assessed in serum, white blood cells and sputum of patients with CF; diabetes; CFRD and healthy subjects. Sputum enRAGE/sRAGE ratios were high in CF but particularly in CFRD which negatively correlated with % predicted FEV1. Serum AGE and AGE/sRAGE ratios were high in diabetics but not in CF. A complex, multifaceted approach was used to assess the role of RAGE and its ligands which is fundamental to determining their impact on airway inflammation. There is a clear association between RAGE activity in the airways of CF and CFRD patients that is not evident in the vascular compartment and correlates with lung function, in contrast to diabetes. This strongly suggests a role for RAGE in contributing to the inflammatory overdrive seen in CF and to a greater extent in CFRD. 2015 Journal Article http://hdl.handle.net/20.500.11937/32583 10.1038/srep08931 Nature Publishing Group fulltext
spellingShingle Mulrennan, S.
Baltic, S.
Aggarwal, S.
Wood, J.
Miranda, Alina
Frost, F.
Kaye, J.
Thompson, P.
The Role of Receptor for Advanced Glycation End Products in Airway Inflammation in CF and CF related Diabetes
title The Role of Receptor for Advanced Glycation End Products in Airway Inflammation in CF and CF related Diabetes
title_full The Role of Receptor for Advanced Glycation End Products in Airway Inflammation in CF and CF related Diabetes
title_fullStr The Role of Receptor for Advanced Glycation End Products in Airway Inflammation in CF and CF related Diabetes
title_full_unstemmed The Role of Receptor for Advanced Glycation End Products in Airway Inflammation in CF and CF related Diabetes
title_short The Role of Receptor for Advanced Glycation End Products in Airway Inflammation in CF and CF related Diabetes
title_sort role of receptor for advanced glycation end products in airway inflammation in cf and cf related diabetes
url http://hdl.handle.net/20.500.11937/32583