期刊
DIGESTIVE DISEASES AND SCIENCES
卷 47, 期 6, 页码 1209-1215出版社
KLUWER ACADEMIC/PLENUM PUBL
DOI: 10.1023/A:1015345825025
关键词
primary biliary cirrhosis; lymphocyte function-associated antigen-1; Th-1; interferon-gamma
Up-regulation of CD11a expression on CD4(+) T lymphocytes is considered to be one of the mechanisms involved in the initiation of the Th-1-mediated immune response. In this study, peripheral blood mononuclear cells from patients with primary biliary cirrhosis (PBC) were evaluated for CD11a(high)CD2(low) T cells and populations of type 1 (Th-1) and type 2 (Th-2) helper T cells. CD11a(h)ighCD2(l)ow T cells were found in PBC (7/15) and in active rheumatoid arthritis (4/4), but not in chronic hepatitis C (0/5) or in healthy subjects (0/6). The population of Th-1 had a positive correlation with that of CD4(+)CD11a(high)CD2(+) cells in patients with PBC (P = 0.034). The serum levels of interferon-gamma also had a weak correlation with the population of CD4(+)CD11a(high)CD2(low) cells (P = 0.050). There was no statistically significant correlation of Th-2 population (P = 0.295) or serum interleukin-4 level (P = 0.685) with the population of CD4(+)CD11a(high)CD2(low) cells. These results suggest that CD4(+)CD11a(high) cells play a role in Th-1-predominance and in the autoimmune process of PBC.
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