Document Detail

Increase in Neuroendocrine Cells in the Duodenal Mucosa of Patients with Refractory Celiac Disease.
MedLine Citation:
PMID:  24394748     Owner:  NLM     Status:  Publisher    
OBJECTIVES:Several immune-mediated gastrointestinal disorders, including celiac disease (CD), are associated with neuroendocrine cell hyperplasia. However, neuroendocrine cells have never been explored in refractory CD (RCD).METHODS:Serial duodenal sections from 17 patients with RCD (6 type 1 and 11 type 2), 16 uncomplicated CD patients before and after gluten-free diet, 14 patients with potential CD, 27 patients with non-CD villous atrophy, i.e., common variable immunodeficiency (n=12), Whipple's disease (n=10) and giardiasis (n=5), and 16 healthy subjects were processed for the immunohistochemical detection of chromogranin A (CgA), serotonin, and somatostatin. Mucosal tryptophan hydroxylase (TpH)-1 and serotonin-selective reuptake transporter (SERT) transcripts were measured by quantitative reverse transcription-PCR. Serum CgA and 24-h urine 5-hydroxyindoleacetic acid (5-HIAA) were assessed. Biopsies from treated CD patients were cultured with serotonin or peptic tryptic digest of gliadin (PT-gliadin), and interferon (IFN)-γ was detected by ELISA in culture supernatants.RESULTS:Epithelial cells positive for CgA and serotonin, but not somatostatin, were significantly increased in RCD. Raised mucosal transcripts of TpH-1, but not SERT, were found in RCD. On biopsies from treated CD patients, serotonin upregulated IFN-γ production at levels comparable to those induced by PT-gliadin. Serum CgA, but not urine 5-HIAA, was increased in RCD. No significant difference was found between RCD type 1 and type 2 in terms of neuroendocrine cells, mucosal TpH-1 transcripts, and serum CgA.CONCLUSIONS:Serotonin-producing neuroendocrine cells are increased in RCD mucosa. IFN-γ upregulation induced by serotonin suggests that this monoamine may have a role in sustaining the local inflammatory response in CD.Am J Gastroenterol advance online publication, 7 January 2014; doi:10.1038/ajg.2013.426.
Antonio Di Sabatino; Paolo Giuffrida; Alessandro Vanoli; Ombretta Luinetti; Rachele Manca; Paolo Biancheri; Gaetano Bergamaschi; Costanza Alvisi; Alessandra Pasini; Chiara Salvatore; Federico Biagi; Enrico Solcia; Gino Roberto Corazza
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-1-07
Journal Detail:
Title:  The American journal of gastroenterology     Volume:  -     ISSN:  1572-0241     ISO Abbreviation:  Am. J. Gastroenterol.     Publication Date:  2014 Jan 
Date Detail:
Created Date:  2014-1-7     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0421030     Medline TA:  Am J Gastroenterol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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