求翻译：通过分析UC患者外周血和肠黏膜中CD4+CD25+调节性T细胞及其特异性标志物Foxp3的表达特点，探讨CD4+CD25+调节性T细胞和Foxp3在UC发病机制中的作用。是什么意思？

By analyzing the peripheral blood and intestinal mucosa of patients with UC in the CD4 + CD25 + regulatory T cells and their specific marker Foxp3 expression characteristics of CD4 + CD25 + regulatory T cells and Foxp3 in the pathogenesis of UC's role.

By analysing UC patient peripheral blood and intestinal mucosa CD CD 4+ 25 + regulatory cells and their specificity T Foxp marker 3 features, the expression 4 + CD CD explore 25 + regulatory cells and Foxp T UC pathogeny 3 in the role.

Through analyzes in the UC patient circumference blood and the intestines mucous membrane CD4+CD25+ the control character T cell and the specificity designated object Foxp3 expression characteristic, discusses CD4+CD25+ the control character T cell and Foxp3 in the UC pathogenesis function.

Through the analysis of peripheral blood of patients with UC and CD4+CD25+ regulatory t-cells in the intestinal mucosa and its characteristics of specific markers of Foxp3 expression, discussion on CD4+CD25+ and Foxp3 regulatory t cells in the pathogenesis of UC in the role.

Through the analysis of peripheral blood of patients with UC and CD4+CD25+ regulatory t-cells in the intestinal mucosa and its characteristics of specific markers of Foxp3 expression, discussion on CD4+CD25+ and Foxp3 regulatory t cells in the pathogenesis of UC in the role.