人胎盘绒毛提取物体外对T细胞应答的抑制效应
毕业论文8.38K
作者:肇静娴,曾耀英,江逊,季煜华,刘毅
【关键词】 胎盘绒毛;滋养层;免疫抑制;T淋巴细胞;色氨酸加氧酶
【Abstract】 AIM: To have a progressive knowledge of the inhibitory capacity of placental villi on T cell response and its changes in the 3 trimesters of pregnancy. METHODS: Tissue extracts were prepared from early (10 weeks), middle (20 weeks) and late (37 weeks) placental villi, and their impacts on T cell activation were evaluated by detecting CD69 and CD25 expressions, impacts on proliferation were analyzed by method of WST1, and impacts on Th1/Th2 cytokine repertoire were measured by cytometric bead array (CBA). Content of indoleamine 2,3dioxygenase (IDO) in the tissue extracts was detected by Western blotting. RESULTS: All tissue extracts from the 3 trimesters showed inhibitory effects on activation, proliferation and cytokine secretion of human peripheral T cells stimulated by PHA, and also on activation of mouse T cell activation stimulated by ConA (P
【关键词】 胎盘绒毛;滋养层;免疫抑制;T淋巴细胞;色氨酸加氧酶
【Abstract】 AIM: To have a progressive knowledge of the inhibitory capacity of placental villi on T cell response and its changes in the 3 trimesters of pregnancy. METHODS: Tissue extracts were prepared from early (10 weeks), middle (20 weeks) and late (37 weeks) placental villi, and their impacts on T cell activation were evaluated by detecting CD69 and CD25 expressions, impacts on proliferation were analyzed by method of WST1, and impacts on Th1/Th2 cytokine repertoire were measured by cytometric bead array (CBA). Content of indoleamine 2,3dioxygenase (IDO) in the tissue extracts was detected by Western blotting. RESULTS: All tissue extracts from the 3 trimesters showed inhibitory effects on activation, proliferation and cytokine secretion of human peripheral T cells stimulated by PHA, and also on activation of mouse T cell activation stimulated by ConA (P
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