DPPE-PEG-Mal在抗体片段偶联脂质体中的作用机制研究
参考文献:带着聚乙二醇偶联 Fab′ 电影片段的免疫系统脂质体在人体无限循环时延缓,并能特别融于要求实体型*微信链接://febs.onlinelibrary.wiley.com/doi/full/10.1016/S0014-5793%2897%2900905-8小说作家:丸山和夫, 高桥伸也, 田川俊明, 永池一宏, 岩鹤元治节选:他们搭建一堆种复合型长嵌套循环系统天然抗体脂质体(Fab′-PEG天然抗体脂质体),可更高效地融于休内靶点片体*。他们以二硬脂酰磷脂酰胆碱(DSPC)、甘油三酯(CHOL)、后部包含马来酰亚胺基的PEG二棕榈酰磷脂酰酒精胺ip产业物(DPPE-PEG-Mal)已经偶联的*体Fab′细节描写,提纯了网套直径100-130纳米级的小形双层脂质体。DPPE-PEG-Mal的引出已经Fab′细节描写(并不是完整篇*体)与PEG后部的拼接,会让脂质体验够躲开RES的摄食,并在嵌套循环系统中存留更长期限,应该促进脂质体在片体*中的蓄积。可能这款 Fab′-PEG 天然抗体脂质体验够靶点片体*,这样二者不但应该是 放疗化疗治疗类药的质粒质粒,还有应该是 大原子治疗类药的质粒质粒,兼具很高的诱惑力。AbstractWe have developed a new type of long-circulating immunoliposome (Fab′–PEG immunoliposomes) which is efficiently extravasated into the targeted solid tumor in vivo. Small unilamellar liposomes (100–130 nm in diameter) were prepared from distearoylphosphatidylcholine (DSPC), cholesterol (CHOL) and a dipalmitoylphosphatidylethanolamine derivative of PEG with a terminal maleimidyl group (DPPE-PEG-Mal), and conjugated Fab′ fragment of antibody. Inclusion of DPPE-PEG-Mal and linkage of the Fab′ fragment instead of intact antibody to PEG terminals allowed the liposomes to evade RES uptake and remain in the circulation for a long time, resulting in enhanced accumulation of the liposomes in the solid tumor. Because of the ability of such Fab′–PEG immunoliposomes to target solid tumors, they appear highly attractive as carriers of not only chemotherapeutic agents, but also of macromolecular drugs.



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