Persistence of high CD40 and CD40L expression after restorative proctocolectomy for ulcerative colitis  

作　　者：Lino Polese Imerio Angriman Giuseppe De Franchis Attilio Cecchetto Giacomo C.Sturniolo Renata D'Incà Marco Scarpa Cesare Ruffolo Lorenzo Norberto Mauro Frego Davide F D'Amico 

机构地区：[1]Department of Gastroenterological and Surgical Sciences. Surgical Unit University of Padova, Italy [2]Department of Laboratory Medicine University of Padova, Italy [3]Department of Pathology University of Padova, Italy [4]Department of Gastroenterological and Surgical Sciences Gastroenterological Unit, University of Padova, Italy

出　　处：《World Journal of Gastroenterology》2005年第34期5303-5308,共6页世界胃肠病学杂志（英文版）

摘　　要：AIM： To focus on the role of CD40 and CD40L in their pathogenesis. METHODS： We analyzed by immunohistochemistry the CD40 and CD40L expression in the pouch mucosa of 28 patients who had undergone RPC for UC, in the terminal ileum of 6 patients with UC and 11 healthy subjects. We also examined by flow cytometry the expression of CEH0 by B lymphoo/tes and monocytes in the peripheral blood of 20 pouch patients, 15 UC patients and 11 healthy controls. RESULTS： Ileal pouch mucosa leukocytes presented a significantly higher expression of CD40 and CD40L as compared to controls. This alteration correlated with pouchitis, but was also present in the healthy pouch and in the terminal ileum of UC patients. CD40 expression of peripheral B lymphocytes was significantly higher in patients with UC and pouch, respect to controls. Increased CD40 levels in blood B cells of pouch patients correlated with the presence of spondyloarthropathy, but not with pouchitis, or inflammatory indices. CONCLUSION： High CD40 expression in the ileal pouch mucosa could be implied in the pathogenesis of pouchitis following proctocolectomy for UC, whereas its increased levels on peripheral blood B lymphocytes are associated with the presence of extraintestinal manifestations.AIM: To focus on the role of CD40 and CD40L in their pathogenesis.METHODS: We analyzed by immunohistochemistry the CD40 and CD40L expression in the pouch mucosa of 28 patients who had undergone RPC for UC, in the terminal ileum of 6 patients with UC and 11 healthy subjects. We also examined by flow cytometry the expression of CD40 by B lymphocytes and monocytes in the peripheral blood of 20 pouch patients, 15 UC patients and 11 healthy controls.RESULTS: Ileal pouch mucosa leukocytes presented a significantly higher expression of CD40 and CD40L as compared to controls. This alteration correlated with pouchitis, but was also present in the healthy pouch and in the terminal ileum of UC patients. CD40 expression of peripheral B lymphocytes was significantly higher in patients with UC and pouch, respect to controls. Increased CD40 levels in blood B cells of pouch patients correlatedwith the presence of spondyloarthropathy, but not with pouchitis, or inflammatory indices.CONCLUSION: High CD40 expression in the ileal pouch mucosa could be implied in the pathogenesis of pouchitis following proctocolectomy for UC, whereas its increased levels on peripheral blood B lymphocytes are associated with the presence of extraintestinal manifestations.

关 键 词：Ulcerative colitis POUCHITIS SPONDYLOARTHROPATHY CD40 CD4OL ARTHRITIS 

分 类 号：R574.6[医药卫生—消化系统]