Korean J Intern Med.
1997 Jan;12(1):7-15.
Differences in immunophenotyping of mucosal lymphocytes between ulcerative colitis and Crohn's disease
- Affiliations
-
- 1Department of Internal Medicine, Chon Buk National University, Chonbuk, Korea.
Abstract
OBJECTIVES
Immunologic studies have characterized the numbers and types of
inflammatory cells in diseased inflammatory bowel disease (IBD) mucosa but have
yielded conflicting results regarding intestinal lymphocytes activation in IBD.
We investigated the levels of lymphocytes subsets, interleukin-2 receptor,
transferrin receptor, and T cell receptors in mainly isolated lamina propria
lymphocytes. Including intraepithelial lymphocytes of normal colonic mucosa or
IBD (ulcerative colitis and Crohn's disease) mucosa to understand the
pathogenesis of IBD. We have results from this study. RESULTS: 1) In comparing
ulcerative colitis with control, IL-2R (p < 0.05), TR (p < 0.01), and CD3/HLA-DR
(<0.05) showed a significant increase. 2) In comparing Crohn's disease with
control, CD3 (P < 0.05), TCR alpha/beta (p < 0.01) and TCR gamma/delta (p <
0.05) showed a significant decrease. 3) In comparing Crohn's disease with
ulcerative colitis, CD19 (p < 0.01), TR (p < 0.01), TCR alpha/beta (p < 0.01)
and TCR gamma/delta (p < 0.05) showed a significant decrease. CONCLUSION: From
these results, there are increased T cell markers, IL-2R, TR, and CD3/HLA-DR in
UC, but differently, decreased CD3, TCR alpha/beta and TCR gamma/delta in CD
compared with control. In addition, definitive differences in lymphocytes
markers, CD19, TR, TCR alpha/beta and TCR gamma/delta, which are higher in UC
than in CD, may elucidate the different immunopathogenesis between UC and CD.