[Detection of FasL mRNA, sFasL and their regulatory effect on T lymphocyte subsets in patients with severe acute pancreatitis].
Xi bao yu fen zi mian yi xue za zhi = Chinese journal of cellular and molecular immunology(2013)
摘要
OBJECTIVE:To investigate the levels of FasL mRNA in peripheral blood mononualear cells (PBMCs), serum soluble Fas ligand (sFasL) and their regulatory effect on T lymphocyte subsets in patients with severe acute pancreatitis (SAP).
METHODS:Forty-eight patients with pancreatitis were randomly divided into two groups: 20 cases with SAP and 28 cases with mild acute pancreatitis (MAP). Twenty-eight healthy volunteers were selected as control group. The expression of FasL mRNA in PBMCs was detected by real-time quantitative PCR(qRT-PCR), and serum sFasL was measured by ELISA. T lymphocyte subsets in peripheral blood were detected by flow cytometry.
RESULTS:Compared with control group and MAP group, FasL mRNA of PBMCs and serum sFasL increased significantly in SAP group (P<0.05), a little increase in MAP group, and there was no significant difference between MAP group and control group (P>0.05). The CD4(+) T cell ratio, CD4(+)/CD8(+) ratio decreased significantly in SAP group (P<0.05) vs control group and MAP group), and they were found negatively related to FasL mRNA, serum sFasL level.
CONCLUSION:The SAP patients showed the significantly increased FasL mRNA of PBMCs and serum sFasL and decreased CD4(+) T-cell ratio, CD4(+)/CD8(+) ratio. FasL may mediate the apoptosis of T lymphocytes.
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