BACKGROUND: Creeping fat represents a characteristic feature of Crohn's disease (CD) and adipose tissue is currently being recognized as a complex compartment secreting highly active molecules. Pro- or anti-inflammatory adipose tissue-derived secretory products (adipocytokines) might play a role in the pathogenesis of CD. METHODS: Adipose tissue specimens were obtained from creeping fat contiguous to the involved intestine of 10 patients with CD. Mesenteric adipose tissue specimens resected in 13 patients with colon cancer (CC) and in seven patients with diverticulitis (DIV) served as controls. Three fat tissue specimens per well and n = 6-8 wells per patient were incubated ex vivo for 24 h. The release of regulated on activation, T-cell expressed and secreted (RANTES) and interleukin (IL)-10 into the supernatant was measured by ELISA. RESULTS: Both RANTES and IL-10 secretion could be demonstrated from total adipose tissue explants. The RANTES secretion is increased from creeping fat in CD (3691 +/- 597 pg/g fat per 24 h) when compared to mesenteric adipose tissue from patients with CC (1690 +/- 191 pg/g fat per 24 h; P < 0.0001) or DIV (1672 +/- 336 pg/g fat per 24 h; P < 0.0001). In contrast, IL-10 secretion is downregulated significantly only in patients with DIV (1418 +/- 180 pg/g fat per 24 h; P = 0.016) when compared to CC patients (2368 +/- 259 pg/g fat per 24 h). Crohn's disease patients receiving steroids had a higher secretion rate of RANTES and IL-10. CONCLUSIONS: Both RANTES and IL-10 secretion can be detected from mesenteric adipose tissue and from creeping fat. The elevated RANTES and IL-10 secretion from creeping fat in CD is not due to a CD-specific effect but caused by steroid treatment.
BACKGROUND: Creeping fat represents a characteristic feature of Crohn's disease (CD) and adipose tissue is currently being recognized as a complex compartment secreting highly active molecules. Pro- or anti-inflammatory adipose tissue-derived secretory products (adipocytokines) might play a role in the pathogenesis of CD. METHODS: Adipose tissue specimens were obtained from creeping fat contiguous to the involved intestine of 10 patients with CD. Mesenteric adipose tissue specimens resected in 13 patients with colon cancer (CC) and in seven patients with diverticulitis (DIV) served as controls. Three fat tissue specimens per well and n = 6-8 wells per patient were incubated ex vivo for 24 h. The release of regulated on activation, T-cell expressed and secreted (RANTES) and interleukin (IL)-10 into the supernatant was measured by ELISA. RESULTS: Both RANTES and IL-10 secretion could be demonstrated from total adipose tissue explants. The RANTES secretion is increased from creeping fat in CD (3691 +/- 597 pg/g fat per 24 h) when compared to mesenteric adipose tissue from patients with CC (1690 +/- 191 pg/g fat per 24 h; P < 0.0001) or DIV (1672 +/- 336 pg/g fat per 24 h; P < 0.0001). In contrast, IL-10 secretion is downregulated significantly only in patients with DIV (1418 +/- 180 pg/g fat per 24 h; P = 0.016) when compared to CC patients (2368 +/- 259 pg/g fat per 24 h). Crohn's diseasepatients receiving steroids had a higher secretion rate of RANTES and IL-10. CONCLUSIONS: Both RANTES and IL-10 secretion can be detected from mesenteric adipose tissue and from creeping fat. The elevated RANTES and IL-10 secretion from creeping fat in CD is not due to a CD-specific effect but caused by steroid treatment.
Authors: Kimberley W J Van Der Sloot; Amit D Joshi; Danielle R Bellavance; Katherine K Gilpin; Kathleen O Stewart; Paul Lochhead; John J Garber; Cosmas Giallourakis; Vijay Yajnik; Ashwin N Ananthakrishnan; Behrooz Z Alizadeh; Ramnik J Xavier; Hamed Khalili Journal: Inflamm Bowel Dis Date: 2017-01 Impact factor: 5.325
Authors: Ludovic Zimmerlin; Tea Soon Park; Elias T Zambidis; Vera S Donnenberg; Albert D Donnenberg Journal: Biochimie Date: 2013-06-05 Impact factor: 4.079
Authors: Raquel F Leal; Marciane Milanski; Maria de Lourdes S Ayrizono; Andressa Coope; Viviane S Rodrigues; Mariana Portovedo; Luiza M F Oliveira; João J Fagundes; Cláudio S R Coy; Lício A Velloso Journal: Int J Clin Exp Med Date: 2013-01-26
Authors: Venkatesh Ponemone; Ali Keshavarzian; Marc I Brand; Theodore Saclarides; Herand Abcarian; Robert J Cabay; Emma Fletcher; Bianca Larsen; Larry J Durstine; Giamila Fantuzzi; Raja Fayad Journal: Clin Transl Gastroenterol Date: 2010-10-21 Impact factor: 4.488