ABSTRACT
The largest microbial community of the human microbiome is located in the digestive tract and performs vital functions. The changes in the composition and function of intestinal microflora can influence the occurrence, development and prognosis of intestinal diseases. Diarrhea, irritable bowel syndrome( IBS) and inflammatory bowel diseases( IBD) are common intestinal diseases, and the relationship between them and intestinal microflora has at-tracted more and more attention.
ABSTRACT
<p><b>BACKGROUND</b>To further probe into the role of CD178 in the pathogenesis of hemorrhagic fever with renal syndrome (HFRS).</p><p><b>METHODS</b>The expression of CD178 and HLA-DR on T cell subsets in peripheral blood of patients with HFRS and their dynamic changes were detected by Flow cytometry.</p><p><b>RESULTS</b>CD4+ CD178+ and CD8+ CD178+ T lymphocytes both in fever and polyuria phases were significantly higher than those in normal controls, while there was no significant difference between the both phases of HFRS (P > 0.05). CD178 expression on CD4+ HLA-DR+ and CD8+ HLA-DR+ T lymphocytes were significantly higher than those in normal controls (P < 0.05, P < 0.01, P < 0.001, P < 0.001), while there was no significant difference between CD4+ HLA-DR+ and CD8+ HLA-DR+ T lymphocytes (P > 0.05).</p><p><b>CONCLUSION</b>CD178 was expressed on both CD4+ and CD8+ T cell subsets, but mainly on CD8+ T cell subsets both in early stage and in later stage in the pathogenesis of HFRS. Cytotoxic T lymphocyte (CTL) might kill target cells infected by hantavirus (HV) and eliminate HV via cell apoptosis mediated by CD178 in early stage of HFRS. In later stage of HFRS, CD178 might reduce antigen-specific T lymphocytes by activation induced cell death (AICD) and help to maintain the homeostasis of immune system.</p>