Fig. 6.
The influence of inflammatory bowel disease (IBD) on the expression of major histocompatibility complex class I (MHC I) and II in multi-vesicular bodies. Labelling for MHC I and II at the limiting membrane (GP/μm) and on internal vesicles (GP/μm2) assessed in multi-vesicular bodies of intestinal epithelial cells (IEC), as described in Materials and methods. Results were compared between healthy subjects and IBD patients. Error bars represent the standard error of the mean; *P < 0·05; **P < 0·005.