Abstract
Background: Inflammatory bowel disease (IBD) is associated with neuroendocrine cell hyperplasia. Aims: We investigated neuroendocrine cells in J-pouches of patients with ulcerative colitis undergoing restorative proctocolectomy and ileal pouch-anal anastomosis. Methods: Sections from pouch biopsies of 17 patients and ileal biopsies of 17 active IBD patients and 16 controls were processed by immunohistochemistry for chromogranin A (CgA) and serotonin. Mucosal tryptophan hydroxylase (TpH)-1 and serotonin-selective reuptake transporter (SERT) transcripts were measured by quantitative RT-PCR. TpH-1 and SERT transcripts were detected in pouch biopsies cultured with infliximab or its isotype control, while interleukin (IL)-6 and IL-8 were measured in biopsy supernatants. Results: A significant increase in CgA-positive cells and serotonin-positive cells was observed in both pouch and IBD ileum compared to control ileum. Significantly raised transcripts of TpH-1, but not SERT, were found in IBD ileum in comparison to control ileum, with no significant difference between pouch and IBD ileum. Infliximab had no influence on ex vivo pouch expression of TpH-1 and SERT, nor on the production of IL-6 and IL-8. Conclusion: We here demonstrated neuroendocrine cell hyperplasia in pouch mucosa. Further studies are needed to clarify the pathophysiological implication of this finding.
| Original language | English |
|---|---|
| Journal | Digestive and Liver Disease |
| DOIs | |
| Publication status | Accepted/In press - Jan 1 2018 |
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Keywords
- Chromogranin A
- Crohn's disease
- Pouchitis
- Serotonin
- Ulcerative colitis
ASJC Scopus subject areas
- Hepatology
- Gastroenterology
Cite this
Increase in chromogranin A- and serotonin-positive cells in pouch mucosa of patients with ulcerative colitis undergoing proctocolectomy. / Giuffrida, Paolo; Vanoli, Alessandro; Biletta, Elena; Klersy, Catherine; Bergamaschi, Gaetano; Sampietro, Gianluca M.; Ardizzone, Sandro; Luinetti, Ombretta; Martino, Michele; Lenti, Marco Vincenzo; Aronico, Nicola; Curti, Marco; Manca, Rachele; Fociani, Paolo; Truffi, Marta; Corsi, Fabio; Corazza, Gino Roberto; Di Sabatino, Antonio.
In: Digestive and Liver Disease, 01.01.2018.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Increase in chromogranin A- and serotonin-positive cells in pouch mucosa of patients with ulcerative colitis undergoing proctocolectomy
AU - Giuffrida, Paolo
AU - Vanoli, Alessandro
AU - Biletta, Elena
AU - Klersy, Catherine
AU - Bergamaschi, Gaetano
AU - Sampietro, Gianluca M.
AU - Ardizzone, Sandro
AU - Luinetti, Ombretta
AU - Martino, Michele
AU - Lenti, Marco Vincenzo
AU - Aronico, Nicola
AU - Curti, Marco
AU - Manca, Rachele
AU - Fociani, Paolo
AU - Truffi, Marta
AU - Corsi, Fabio
AU - Corazza, Gino Roberto
AU - Di Sabatino, Antonio
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Background: Inflammatory bowel disease (IBD) is associated with neuroendocrine cell hyperplasia. Aims: We investigated neuroendocrine cells in J-pouches of patients with ulcerative colitis undergoing restorative proctocolectomy and ileal pouch-anal anastomosis. Methods: Sections from pouch biopsies of 17 patients and ileal biopsies of 17 active IBD patients and 16 controls were processed by immunohistochemistry for chromogranin A (CgA) and serotonin. Mucosal tryptophan hydroxylase (TpH)-1 and serotonin-selective reuptake transporter (SERT) transcripts were measured by quantitative RT-PCR. TpH-1 and SERT transcripts were detected in pouch biopsies cultured with infliximab or its isotype control, while interleukin (IL)-6 and IL-8 were measured in biopsy supernatants. Results: A significant increase in CgA-positive cells and serotonin-positive cells was observed in both pouch and IBD ileum compared to control ileum. Significantly raised transcripts of TpH-1, but not SERT, were found in IBD ileum in comparison to control ileum, with no significant difference between pouch and IBD ileum. Infliximab had no influence on ex vivo pouch expression of TpH-1 and SERT, nor on the production of IL-6 and IL-8. Conclusion: We here demonstrated neuroendocrine cell hyperplasia in pouch mucosa. Further studies are needed to clarify the pathophysiological implication of this finding.
AB - Background: Inflammatory bowel disease (IBD) is associated with neuroendocrine cell hyperplasia. Aims: We investigated neuroendocrine cells in J-pouches of patients with ulcerative colitis undergoing restorative proctocolectomy and ileal pouch-anal anastomosis. Methods: Sections from pouch biopsies of 17 patients and ileal biopsies of 17 active IBD patients and 16 controls were processed by immunohistochemistry for chromogranin A (CgA) and serotonin. Mucosal tryptophan hydroxylase (TpH)-1 and serotonin-selective reuptake transporter (SERT) transcripts were measured by quantitative RT-PCR. TpH-1 and SERT transcripts were detected in pouch biopsies cultured with infliximab or its isotype control, while interleukin (IL)-6 and IL-8 were measured in biopsy supernatants. Results: A significant increase in CgA-positive cells and serotonin-positive cells was observed in both pouch and IBD ileum compared to control ileum. Significantly raised transcripts of TpH-1, but not SERT, were found in IBD ileum in comparison to control ileum, with no significant difference between pouch and IBD ileum. Infliximab had no influence on ex vivo pouch expression of TpH-1 and SERT, nor on the production of IL-6 and IL-8. Conclusion: We here demonstrated neuroendocrine cell hyperplasia in pouch mucosa. Further studies are needed to clarify the pathophysiological implication of this finding.
KW - Chromogranin A
KW - Crohn's disease
KW - Pouchitis
KW - Serotonin
KW - Ulcerative colitis
UR - http://www.scopus.com/inward/record.url?scp=85047263661&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85047263661&partnerID=8YFLogxK
U2 - 10.1016/j.dld.2018.04.021
DO - 10.1016/j.dld.2018.04.021
M3 - Article
AN - SCOPUS:85047263661
JO - Digestive and Liver Disease
JF - Digestive and Liver Disease
SN - 1590-8658
ER -