Vitamin D receptor agonists inhibit pro-inflammatory cytokine production from the respiratory epithelium in cystic fibrosis.

Hdl Handle:
http://hdl.handle.net/10147/141004
Title:
Vitamin D receptor agonists inhibit pro-inflammatory cytokine production from the respiratory epithelium in cystic fibrosis.
Authors:
McNally, P; Coughlan, C; Bergsson, G; Doyle, M; Taggart, C; Adorini, L; Uskokovic, M R; El-Nazir, B; Murphy, P; Greally, P; Greene, C M; McElvaney, N G
Affiliation:
Department of Paediatric Respiratory Medicine, Adelaide and Meath Hospital incorporating the National Children's Hospital, Dublin 24, Ireland; Respiratory Research Division, Royal College of Surgeons in Ireland, Beaumont Hospital, Dublin 9, Ireland.
Citation:
Vitamin D receptor agonists inhibit pro-inflammatory cytokine production from the respiratory epithelium in cystic fibrosis. 2011:notJ Cyst Fibros
Journal:
Journal of cystic fibrosis : official journal of the European Cystic Fibrosis Society
Issue Date:
22-Jul-2011
URI:
http://hdl.handle.net/10147/141004
DOI:
10.1016/j.jcf.2011.06.013
PubMed ID:
21784717
Additional Links:
http://www.ncbi.nlm.nih.gov/pubmed/21784717
Abstract:
BACKGROUND: 1,25-Dihydroxycholecalciferol (1,25(OH)(2)D(3)) has been shown to mitigate epithelial inflammatory responses after antigen exposure. Patients with cystic fibrosis (CF) are at particular risk for vitamin D deficiency. This may contribute to the exaggerated inflammatory response to pulmonary infection in CF. METHODS: CF respiratory epithelial cell lines were exposed to Pseudomonas aeruginosa lipopolysaccharide (LPS) and Pseudomonas conditioned medium (PCM) in the presence or absence of 1,25(OH)(2)D(3) or a range of vitamin D receptor (VDR) agonists. Levels of IL-6 and IL-8 were measured in cell supernatants, and cellular total and phosphorylated IκBα were determined. Levels of human cathelicidin antimicrobial peptide (hCAP18) mRNA and protein were measured in cells after treatment with 1,25(OH)(2)D(3). RESULTS: Pretreatment with 1,25(OH)(2)D(3) was associated with significant reductions in IL-6 and IL-8 protein secretion after antigen exposure, a finding reproduced with a range of low calcaemic VDR agonists. 1,25(OH)(2)D(3) treatment led to a decrease in IκBα phosphorylation and increased total cellular IκBα. Treatment with 1,25(OH)(2)D(3) was associated with an increase in hCAP18/LL-37 mRNA and protein levels. CONCLUSIONS: Both 1,25(OH)(2)D(3) and other VDR agonists significantly reduce the pro-inflammatory response to antigen challenge in CF airway epithelial cells. VDR agonists have significant therapeutic potential in CF.
Item Type:
Article
Language:
en
ISSN:
1873-5010

Full metadata record

DC FieldValue Language
dc.contributor.authorMcNally, Pen
dc.contributor.authorCoughlan, Cen
dc.contributor.authorBergsson, Gen
dc.contributor.authorDoyle, Men
dc.contributor.authorTaggart, Cen
dc.contributor.authorAdorini, Len
dc.contributor.authorUskokovic, M Ren
dc.contributor.authorEl-Nazir, Ben
dc.contributor.authorMurphy, Pen
dc.contributor.authorGreally, Pen
dc.contributor.authorGreene, C Men
dc.contributor.authorMcElvaney, N Gen
dc.date.accessioned2011-08-29T09:24:12Z-
dc.date.available2011-08-29T09:24:12Z-
dc.date.issued2011-07-22-
dc.identifier.citationVitamin D receptor agonists inhibit pro-inflammatory cytokine production from the respiratory epithelium in cystic fibrosis. 2011:notJ Cyst Fibrosen
dc.identifier.issn1873-5010-
dc.identifier.pmid21784717-
dc.identifier.doi10.1016/j.jcf.2011.06.013-
dc.identifier.urihttp://hdl.handle.net/10147/141004-
dc.description.abstractBACKGROUND: 1,25-Dihydroxycholecalciferol (1,25(OH)(2)D(3)) has been shown to mitigate epithelial inflammatory responses after antigen exposure. Patients with cystic fibrosis (CF) are at particular risk for vitamin D deficiency. This may contribute to the exaggerated inflammatory response to pulmonary infection in CF. METHODS: CF respiratory epithelial cell lines were exposed to Pseudomonas aeruginosa lipopolysaccharide (LPS) and Pseudomonas conditioned medium (PCM) in the presence or absence of 1,25(OH)(2)D(3) or a range of vitamin D receptor (VDR) agonists. Levels of IL-6 and IL-8 were measured in cell supernatants, and cellular total and phosphorylated IκBα were determined. Levels of human cathelicidin antimicrobial peptide (hCAP18) mRNA and protein were measured in cells after treatment with 1,25(OH)(2)D(3). RESULTS: Pretreatment with 1,25(OH)(2)D(3) was associated with significant reductions in IL-6 and IL-8 protein secretion after antigen exposure, a finding reproduced with a range of low calcaemic VDR agonists. 1,25(OH)(2)D(3) treatment led to a decrease in IκBα phosphorylation and increased total cellular IκBα. Treatment with 1,25(OH)(2)D(3) was associated with an increase in hCAP18/LL-37 mRNA and protein levels. CONCLUSIONS: Both 1,25(OH)(2)D(3) and other VDR agonists significantly reduce the pro-inflammatory response to antigen challenge in CF airway epithelial cells. VDR agonists have significant therapeutic potential in CF.-
dc.languageENG-
dc.language.isoenen
dc.relation.urlhttp://www.ncbi.nlm.nih.gov/pubmed/21784717en
dc.titleVitamin D receptor agonists inhibit pro-inflammatory cytokine production from the respiratory epithelium in cystic fibrosis.en
dc.typeArticleen
dc.contributor.departmentDepartment of Paediatric Respiratory Medicine, Adelaide and Meath Hospital incorporating the National Children's Hospital, Dublin 24, Ireland; Respiratory Research Division, Royal College of Surgeons in Ireland, Beaumont Hospital, Dublin 9, Ireland.en
dc.identifier.journalJournal of cystic fibrosis : official journal of the European Cystic Fibrosis Societyen
dc.description.provinceLeinster-

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