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DPPE-PEG-Mal在抗体片段偶联脂质体中的作用机制研究
发布时间:2025-07-08     作者:kx   分享到:
期刊论文:中含聚乙二醇偶联 Fab′ 场面描写的免疫检测脂质体在体中反复时候延长了,并能的高度融于对方实际*联接://febs.onlinelibrary.wiley.com/doi/full/10.1016/S0014-5793%2897%2900905-8作著:丸山和夫, 高桥伸也, 田川俊明, 永池一宏, 岩鹤元治节选:小编开拓一堆种新形长重复免疫力检测抗体脂质体(Fab′-PEG免疫力检测抗体脂质体),可有效率地渗进体內靶向药材药材三维线*。小编以二硬脂酰磷脂酰胆碱(DSPC)、胆固醇升高(CHOL)、下端带异马来酰亚胺基的PEG二棕榈酰磷脂酰工业乙醇胺ip产业物(DPPE-PEG-Mal)并且 偶联的*体Fab′场面,化学合成了直徑100-130奈米的小行一层脂质体。DPPE-PEG-Mal的带来并且 Fab′场面(在于完整篇*体)与PEG下下相连,使人脂质体验够错开RES的摄食,并在重复中留在更长时段,而使不断增强脂质体在三维线*中的蓄积。由这样的 Fab′-PEG 免疫力检测抗体脂质体验够靶向药材药材三维线*,从而它不仅仅能否是放疗化疗药材的各种承载,还能否是分子结构药材的各种承载,存在很高的深深吸的引力。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.

DPPE-PEG-Mal

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