Duodenal microbiota composition and mucosal homeostasis in pediatric celiac disease
BACKGROUND: Celiac disease (CD) is an autoimmune disorder of the small intestine which is triggered by dietary gluten in genetically predisposed (HLA-DQ2/DQ8 positive) individuals. Only a fraction of HLA-DQ2/DQ8 positive individuals develop CD indicating that other factors have a role in the disorder. Several studies have addressed intestinal microbiota aberrancies in pediatric CD, but the results are inconsistent. Previously, we demonstrated that pediatric CD patients have lower duodenal expression of TLR2 and higher expression of TLR9 as compared to healthy controls (HC) indicating that microbiota may have a role in CD. METHODS: We used bacterial phylogenetic microarray to comprehensively profile the microbiota in duodenal biopsies of CD (n = 10) and HC (n = 9) children. The expression of selected mucosa-associated genes was assessed by qRT-PCR in CD and HC children and in treated CD adults (T-CD, n = 6) on gluten free diet. RESULTS: The overall composition, diversity and the estimated microbe associated molecular pattern (MAMP) content of microbiota were comparable between CD and HC, but a sub-population profile comprising eight genus-like bacterial groups was found to differ significantly between HC and CD. In HC, increased TLR2 expression was positively correlated with the expression of tight junction protein ZO-1. In CD and T-CD, the expression of IL-10, IFN-g and CXCR6 were higher as compared to HC. CONCLUSIONS: The results suggest that microbiota and altered expression of mucosal receptors have a role in CD. In CD subjects, the increased expression of IL-10 and IFN-g may have partly resulted from the increased TLR9 expression and signaling
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Format: | Article/Letter to editor biblioteca |
Language: | English |
Subjects: | bacterial-dna, chemokine cxcl16, crohns-disease, healthy-children, inflammation, interferon-gamma, microarray analysis, serratia-marcescens, small-intestinal microbiota, t-cells, |
Online Access: | https://research.wur.nl/en/publications/duodenal-microbiota-composition-and-mucosal-homeostasis-in-pediat |
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dig-wur-nl-wurpubs-4478912024-12-04 Cheng, J.C. Kalliomäki, M. Heilig, G.H.J. Palva, A. Lähteenoja, H. de Vos, W.M. Salojärvi, J. Satokari, R. Article/Letter to editor BMC Gastroenterology 13 (2013) ISSN: 1471-230X Duodenal microbiota composition and mucosal homeostasis in pediatric celiac disease 2013 BACKGROUND: Celiac disease (CD) is an autoimmune disorder of the small intestine which is triggered by dietary gluten in genetically predisposed (HLA-DQ2/DQ8 positive) individuals. Only a fraction of HLA-DQ2/DQ8 positive individuals develop CD indicating that other factors have a role in the disorder. Several studies have addressed intestinal microbiota aberrancies in pediatric CD, but the results are inconsistent. Previously, we demonstrated that pediatric CD patients have lower duodenal expression of TLR2 and higher expression of TLR9 as compared to healthy controls (HC) indicating that microbiota may have a role in CD. METHODS: We used bacterial phylogenetic microarray to comprehensively profile the microbiota in duodenal biopsies of CD (n = 10) and HC (n = 9) children. The expression of selected mucosa-associated genes was assessed by qRT-PCR in CD and HC children and in treated CD adults (T-CD, n = 6) on gluten free diet. RESULTS: The overall composition, diversity and the estimated microbe associated molecular pattern (MAMP) content of microbiota were comparable between CD and HC, but a sub-population profile comprising eight genus-like bacterial groups was found to differ significantly between HC and CD. In HC, increased TLR2 expression was positively correlated with the expression of tight junction protein ZO-1. In CD and T-CD, the expression of IL-10, IFN-g and CXCR6 were higher as compared to HC. CONCLUSIONS: The results suggest that microbiota and altered expression of mucosal receptors have a role in CD. In CD subjects, the increased expression of IL-10 and IFN-g may have partly resulted from the increased TLR9 expression and signaling en application/pdf https://research.wur.nl/en/publications/duodenal-microbiota-composition-and-mucosal-homeostasis-in-pediat 10.1186/1471-230X-13-113 https://edepot.wur.nl/288659 bacterial-dna chemokine cxcl16 crohns-disease healthy-children inflammation interferon-gamma microarray analysis serratia-marcescens small-intestinal microbiota t-cells Wageningen University & Research |
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bacterial-dna chemokine cxcl16 crohns-disease healthy-children inflammation interferon-gamma microarray analysis serratia-marcescens small-intestinal microbiota t-cells bacterial-dna chemokine cxcl16 crohns-disease healthy-children inflammation interferon-gamma microarray analysis serratia-marcescens small-intestinal microbiota t-cells |
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bacterial-dna chemokine cxcl16 crohns-disease healthy-children inflammation interferon-gamma microarray analysis serratia-marcescens small-intestinal microbiota t-cells bacterial-dna chemokine cxcl16 crohns-disease healthy-children inflammation interferon-gamma microarray analysis serratia-marcescens small-intestinal microbiota t-cells Cheng, J.C. Kalliomäki, M. Heilig, G.H.J. Palva, A. Lähteenoja, H. de Vos, W.M. Salojärvi, J. Satokari, R. Duodenal microbiota composition and mucosal homeostasis in pediatric celiac disease |
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BACKGROUND: Celiac disease (CD) is an autoimmune disorder of the small intestine which is triggered by dietary gluten in genetically predisposed (HLA-DQ2/DQ8 positive) individuals. Only a fraction of HLA-DQ2/DQ8 positive individuals develop CD indicating that other factors have a role in the disorder. Several studies have addressed intestinal microbiota aberrancies in pediatric CD, but the results are inconsistent. Previously, we demonstrated that pediatric CD patients have lower duodenal expression of TLR2 and higher expression of TLR9 as compared to healthy controls (HC) indicating that microbiota may have a role in CD. METHODS: We used bacterial phylogenetic microarray to comprehensively profile the microbiota in duodenal biopsies of CD (n = 10) and HC (n = 9) children. The expression of selected mucosa-associated genes was assessed by qRT-PCR in CD and HC children and in treated CD adults (T-CD, n = 6) on gluten free diet. RESULTS: The overall composition, diversity and the estimated microbe associated molecular pattern (MAMP) content of microbiota were comparable between CD and HC, but a sub-population profile comprising eight genus-like bacterial groups was found to differ significantly between HC and CD. In HC, increased TLR2 expression was positively correlated with the expression of tight junction protein ZO-1. In CD and T-CD, the expression of IL-10, IFN-g and CXCR6 were higher as compared to HC. CONCLUSIONS: The results suggest that microbiota and altered expression of mucosal receptors have a role in CD. In CD subjects, the increased expression of IL-10 and IFN-g may have partly resulted from the increased TLR9 expression and signaling |
format |
Article/Letter to editor |
topic_facet |
bacterial-dna chemokine cxcl16 crohns-disease healthy-children inflammation interferon-gamma microarray analysis serratia-marcescens small-intestinal microbiota t-cells |
author |
Cheng, J.C. Kalliomäki, M. Heilig, G.H.J. Palva, A. Lähteenoja, H. de Vos, W.M. Salojärvi, J. Satokari, R. |
author_facet |
Cheng, J.C. Kalliomäki, M. Heilig, G.H.J. Palva, A. Lähteenoja, H. de Vos, W.M. Salojärvi, J. Satokari, R. |
author_sort |
Cheng, J.C. |
title |
Duodenal microbiota composition and mucosal homeostasis in pediatric celiac disease |
title_short |
Duodenal microbiota composition and mucosal homeostasis in pediatric celiac disease |
title_full |
Duodenal microbiota composition and mucosal homeostasis in pediatric celiac disease |
title_fullStr |
Duodenal microbiota composition and mucosal homeostasis in pediatric celiac disease |
title_full_unstemmed |
Duodenal microbiota composition and mucosal homeostasis in pediatric celiac disease |
title_sort |
duodenal microbiota composition and mucosal homeostasis in pediatric celiac disease |
url |
https://research.wur.nl/en/publications/duodenal-microbiota-composition-and-mucosal-homeostasis-in-pediat |
work_keys_str_mv |
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