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自体可溶性肿瘤抗原协同IL-2诱导外周血单个核细胞体外增殖及杀瘤作用的研究
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作者 林元美 刘振华 《中国肿瘤生物治疗杂志》 CAS CSCD 1997年第4期284-286,共3页
本研究观察了胃癌自体可溶性肿瘤抗原协同IL-2诱导外周血单个核细胞(peripheral blood monoclear cells,PBMC)体外增殖及杀瘤作用.我们以生化方法提取胃癌自体可溶性抗原(rumor soluible antigen,TSA),协同IL-2体外培养淋巴细胞,MTT法... 本研究观察了胃癌自体可溶性肿瘤抗原协同IL-2诱导外周血单个核细胞(peripheral blood monoclear cells,PBMC)体外增殖及杀瘤作用.我们以生化方法提取胃癌自体可溶性抗原(rumor soluible antigen,TSA),协同IL-2体外培养淋巴细胞,MTT法测定增殖及杀瘤作用,APAAF法检测细胞表型变化.结果表明,一定剂量TSA可协同IL-2诱导PBMC增殖及杀瘤,单独TSA无此效应.促增殖效应呈时间剂量依赖特征.E/T为80:1时,TSA协同诱导的PBMC杀瘤活性为86.3%,单独IL-2诱导时为48.6%.表型测定表明,TSA协同诱导的PBMC其CD25及CD8表达均显著增高.由此可见,粗提自体胃癌抗原具有诱导T细胞增殖及杀伤肿瘤作用,提示增殖的T细胞可望用于肿瘤的临床过继免疫治疗. 展开更多
关键词 自体可溶性 肿瘤抗原 白细胞介素2 细胞增殖
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Increase of tumor necrosis factor receptor 1 expression in women with unexplained early spontaneous abortion
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作者 闫春芳 于学文 +1 位作者 金辉 李旭 《Journal of Medical Colleges of PLA(China)》 CAS 2004年第6期359-362,366,共5页
Objective: To investigate membrane tumor necrosis factor receptor 1 protein expression level in decidua and concentration of soluble tumor necrosis factor receptor 1 in serum in women with unexplained early spontaneou... Objective: To investigate membrane tumor necrosis factor receptor 1 protein expression level in decidua and concentration of soluble tumor necrosis factor receptor 1 in serum in women with unexplained early spontaneous abortion, threatened abortion, and compare the levels with healthy pregnant women. Methods: Thirty-seven women with unexplained early spontaneous abortion, 27 women with threatened abortion, and 34 healthy pregnant women undergoing artificial abortion of pregnancy at 6 - 10 weeks of gestation were selected. Decidual samples were collected when women were undergoing artificial abortion, and blood samples were collected at the same time. The level of membrane tumor necrosis factor receptor 1 in decidua was detected by flow cytometer, and the concentration of soluble tumor necrosis factor receptor 1 in sera was measured with an enzyme-linked immunosorbent assay. Results: The percentages of membrane tumor necrosis factor receptor 1 positive decidual cells were 16.42 ± 7.10 Mean ± SD for women with unexplained early spontaneous abortion and 13. 14 ± 6.30 for healthy pregnant women ( P < 0.05). Serum concentration of soluble tumor necrosis factor receptor 1 was significantly higher in women with unexplained early spontaneous abortion than in healthy pregnant women and in women with threatened abortion, and no difference was found between healthy pregnant women and women with threatened abortion. Conclusion: Women with unexplained early spontaneous abortion present significantly higher expression of tumor necrosis factor receptor 1 than healthy pregnant women, suggesting that over-expression of tumor necrosis factor receptor 1 may contribute to the development of early spontaneous abortion. 展开更多
关键词 membrane tumor necrosis factor receptor 1 soluble tumor necrosis factor receptor 1 unexplained early spontaneous abortion unexplained recurrent spontaneous abortion flow cytometer
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