The invention relates to a connecting body, in particular to a Gd - DTPA - Polylysine - McAb (anti - VEGF) connector, a preparation method and an application thereof. The technical scheme of the invention are as follows: a Gd - DTPA - Polylysine - McAb (anti VEGF) connection (contrast), produced by the synthesis of a.DTPA double b.DTPA Polylysine anhydride; preparation; c.Gd - DTPA - Polylysine preparation; coupling D. anti VEGF monoclonal antibody and Gd DTPAPolylysine. The invention is based on the Polylysine (poly lysine) and the amplification effect of a monoclonal antibody, the contrast agent Gd - DTPA - Polylysine - McAb (VEGF monoclonal antibody) has the advantages of high immune activity, strong targeting, Gd = 3 +: content etc..
【技术实现步骤摘要】
【技术保护点】
一种Gd-DTPA-Polylysine-McAb联结体,其特征在于:通过下列方法制得: a、DTPA双酸酐的合成:将二乙三胺五酸、乙酸酐和吡啶混合; b、DTPA-Polylysine制备:将多聚赖氨酸溶解于NaH↓[2]CO ↓[3]/Na↓[2]HCO↓[3]缓冲液中,搅拌,并加入步骤a得到的DTPA双酸酐溶液中; c、Gd-DTPA-Polylysine制备:将Gd↓[2]O↓[3]加入到HCl中,加热、溶解,蒸发多余的HCl即得到GdCl↓[3]的溶 液,将GdCl↓[3]溶液加入到步骤b得到的DTPA-Polylysine溶液中; ...
【技术特征摘要】
【专利技术属性】
技术研发人员:汪登斌,钟高仁,龚英,陈克敏,
申请(专利权)人:上海交通大学医学院附属瑞金医院,
类型:发明
国别省市:31[中国|上海]
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