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Issue:
Preparation and immune modulation of Mistletoe lectin
Author(s):
YU Qi-Wen
,
ZHANG Ji-Ying
,
GONG Fang
,
MA Yan-Hui
,
CHENG Wei-Zhi
,
CHEN Xue-Hua
,
MA An-Bin
,
ZHANG Dong-Qing
Pages:
59
-
62
Year:
2009
Issue:
1
Journal:
Chinese Journal of Immunology
Keyword:
槲寄生凝集素
;
Caspase
;
细胞凋亡
;
γδT细胞
;
Abstract:
目的:分析从中国槲寄生中提取的55 KD凝集素诱导T淋巴细胞增殖和肿瘤细胞凋亡的免疫学活性.方法:通过CM-Sepharose和ConA柱分离和纯化了分子量为55 kD的槲寄生凝集素.用流式细胞术和ELlSA检测纯化的槲寄生凝集素诱导T淋巴细胞表型和细胞因子分泌格局.并经Annexin V染色法研究其诱导肿瘤细胞凋亡的免疫学机制.结果:从中国槲寄生中分离纯化了由两个30 kD亚基组成的55 kD槲寄生凝集素蛋白,其具有特异诱导人γδT趼细胞扩增和以Caspase依赖途径诱导Jurkat细胞凋亡,并能促进TNF-α释放和抑制IL-10的释放的作用.结论:中国槲寄生凝集素具有免疫学调节作用和诱导肿瘤细胞凋亡作用.在研究抗肿瘤和免疫学机制中具有应用价值.
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