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定点突变和随机突变PCR构建噬菌体突变次级抗体库方法的比较
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作者 刘洋 余洋 +1 位作者 王岩 赵炜疆 《细胞与分子免疫学杂志》 CAS CSCD 北大核心 2013年第10期1064-1067,共4页
目的以突变Tomlinson I库中筛选的抗细胞黏附分子L1的胞外区单链抗体为例,对定点突变和随机突变两种构建噬菌体抗体次级库的方法进行比较。方法设计定点突变和随机PCR引物在基因水平经PCR、酶切、连接将已有噬菌粒引入突变后转染大肠杆... 目的以突变Tomlinson I库中筛选的抗细胞黏附分子L1的胞外区单链抗体为例,对定点突变和随机突变两种构建噬菌体抗体次级库的方法进行比较。方法设计定点突变和随机PCR引物在基因水平经PCR、酶切、连接将已有噬菌粒引入突变后转染大肠杆菌构建噬菌体次级抗体库;之后使用噬菌体ELISA确定阳性单克隆比例,采用皮尔森χ2检验进行比较。结果两种方法构建的次级抗体库库容分别为1.4×106pfu/mL和2.5×106pfu/mL,两库阳性单克隆比例分别为32.5%和35.5%,二者相比差异无统计学意义(P>0.05)。结论两种突变方法都有望获得高亲和力的抗体。 展开更多
关键词 定点突变PCR 随机突变PCR 噬菌体次级抗体库 单克隆
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Screening for a human single chain Fv antibody against epitope on amyloid-beta 1-40 from a human phage display library 被引量:1
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作者 ZHAO Zhen-fu GAO Guo-quan LIU Shu ZOU Jun-tao XIE Yao YUAN Qun-fang WANG Hua-qiao YAO Zhi-bin 《Chinese Medical Journal》 SCIE CAS CSCD 2007年第21期1931-1934,共4页
Amyloid-beta peptides (Aβ) are believed to be .responsible for the mental decline in patients with Alzheimer's reported that pathology in vaccination disease (AD). In 1999, Schenk et all immunization with Aβ at... Amyloid-beta peptides (Aβ) are believed to be .responsible for the mental decline in patients with Alzheimer's reported that pathology in vaccination disease (AD). In 1999, Schenk et all immunization with Aβ attenuated AD-like the PDAPP mouse, and developed a new approach to AD. Such vaccines were successfully tested in mouse models of AD for the reduction of Aβ plaque burden and the improvement of cognitive performance. However, 6% of AD patients developed symptoms of brain inflammation after vaccination that resembled enceohalitis or meningitis. 展开更多
关键词 Alzheimer's disease phage-display library single-chain Fv antibody amyloid-beta peptide
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