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在人消化道肿瘤细胞表面构建α-gal表位的研究 被引量:2
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作者 张睿 迟宝荣 朱学伟 《中国实验诊断学》 2007年第3期376-379,共4页
目的在大肠杆菌中以可溶性形式表达鼠源性α-1,3-半乳糖基转移酶的催化结构域(α1,3 GTcd;catalytic do-main ofα1,3GT),利用其在人消化道肿瘤细胞表面构建α-gal表位(Galα1-3Gal-β1-4GlcNAc-R),拟用来制备一种新的自体肿瘤疫苗。方... 目的在大肠杆菌中以可溶性形式表达鼠源性α-1,3-半乳糖基转移酶的催化结构域(α1,3 GTcd;catalytic do-main ofα1,3GT),利用其在人消化道肿瘤细胞表面构建α-gal表位(Galα1-3Gal-β1-4GlcNAc-R),拟用来制备一种新的自体肿瘤疫苗。方法利用pET-15 b载体以可溶性形式表达鼠源性α1,3 GTcd,利用高效液相色谱阴离子交换柱检测酶的活性。通过其在人不同消化道肿瘤细胞表面构建α-gal表位,先与人血清孵育,FITC标记的羊抗人的IgG为第二抗体,用流式细胞仪检测荧光强度,以分析α-gal表位的表达结果。结果可溶性高效表达与纯化了带有His-tag的α1,3GTcd并利用HPLC阴离子交换柱检测α1,3 GTcd的活性。流式细胞仪检测结果证明了在人消化道肿瘤细胞表面成功构建了α-gal表位。结论本研究可溶性的表达了α1,3 GTcd,并利用其在人消化道肿瘤细胞表面成功地构建了α-gal表位.为该方法的临床治疗的应用打下坚实的基础。 展开更多
关键词 α-1 3-半乳糖基转移酶 α-Gal表位 催化结构域 人消化道肿瘤 肿瘤疫苗
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Recombinant human interleukin-11 for treatment of chemotherapy-induced thrombocytopenia in patients with gastrointestinal cancer 被引量:1
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作者 Jie Li Lin Shen Yan Li Xiaodong Zhang Jian Li Jifang Gong Wei Deng 《The Chinese-German Journal of Clinical Oncology》 CAS 2007年第5期450-452,共3页
Objective: To evaluate the efficacy and safety of recombinant human interleukin-11 (rhIL-11) for the chemotherapy-induced thrombocytopenia in patients with gastrointestinal cancer. Methods: It was an opened and no... Objective: To evaluate the efficacy and safety of recombinant human interleukin-11 (rhIL-11) for the chemotherapy-induced thrombocytopenia in patients with gastrointestinal cancer. Methods: It was an opened and non-randomized controlled clinical study. When the platelet counts was under 75 × 10^9/L after chemotherapy, rhlL-11 was administered 25 μg/(kg·d) as a daily SC injection last for 7-14 days, or discontinued when platelet counts 〉 100 × 10^9/L. Results: Seventysix patients were enrolled into this study. The treatment group and the control group had thirty-eight cases, respectively. The mean recovery time to PLT ≥ 100 × 10^9/L was 8.1 days in treatment group, while in control group was 12.2 days (P 〈 0.01). Moreover, the mean recovery time from PLT 〈_ 50 × 10^9/L to 〉 100 × 10^9/L was 8.9 days in treatment group, while in control group was 12.9 days (P 〈 0.05). There was a statistical difference between the two groups. Major side effects included edema, fever, articular muscle soreness, but they were all mild and well tolerable. Conclusion: rhIL-11 can be safely and effectively used for the treatment of chemotherapy-induced thrombocytopenia in patients with gastrointestinal cancer. 展开更多
关键词 recombinant human interleukin-11 (rhIL-11) gastrointestinal cancer thrembocytopenia CHEMOTHERAPY
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