摘要AIM: To investigate the therapeutic effect of Schistosoma mansoni ( S.mansoni) soluble worm proteins on gastrointestinal motility disturbances during experimental colitis in mice.METHODS: Colitis was induced by intrarectal injection of trinitrobenzene sulphate (TNBS) and 6 h later, mice were treated ip with S.mansoni proteins.Experiments were performed 5 d after TNBS injection.Inflammation was quantified using validated inflammation parameters.Gastric emptying and geometric center were measured to assess in vivo gastrointestinal motility.Peristaltic activity of distal colonic segments was studied in vitro using a modified Trendelenburg setup.Cytokine profiles of Tlymphocytes isolated from the colon were determined by real time reverse transcriptasepolymerase chain reaction.RESULTS: Intracolonic injection of TNBS caused severe colitis.Treatment with S.mansoni proteins significantly ameliorated colonic inflammation after 5 d.TNBS did not affect gastric emptying but significantly decreased the geometric center and impaired colonic peristaltic activity 5 d after the induction of colitis.Treatment with S.mansoni proteins ameliorated these in vivo and in vitro motility disturbances.In addition, TNBS injection caused a downregulation of effector T cell cytokines after 5 d, whereas a S.mansoni protein effect was no longer observed at this time point.CONCLUSION: Treatment with S.mansoni proteins attenuated intestinal inflammation and ameliorated motility disturbances during murine experimental colitis.