An improved method for covalent attachment of antibody to liposomes.

An improved method for covalent attachment of antibody to liposomes.
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一种将抗体共价连接至脂质体的改进方法。

DOI:
10.1016/0005-2736(82)90185-7
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发表时间:
1982
期刊:
Biochimica et biophysica acta
影响因子:
--
通讯作者:
Huang,L
Huang,L
中科院分区:
--
文献类型:
--
作者:
Shen,DF;Huang,A;Huang,L

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本文介绍了一种将单抗与棕榈酸偶联的方法快速、简便地掺入反相蒸发法制备的脂质体中。娜塔莉。阿卡德。SCI。美国第75,4194-4198)。将0.15%脱氧胆酸盐中的棕榈酰抗体加入脂质体悬浮液中,蒸发除去大部分有机溶剂。有效地掺入棕榈酰抗体(80%以上),包封物无渗漏。天然的、未经修饰的抗体不能在相同的条件下掺入。约50%的抗体能被酶消化,而大多数内部蛋白标记物不能被消化,这表明大约一半的抗体暴露在脂质体的外表面。抗体-脂质体与RDM-4淋巴瘤细胞的体外靶向结合也被证实。这种方法可以快速高效地将功能性抗体分子附着到脂质体上,并具有很高的药物捕获率,因此在脂质体介导的靶向给药方面应该是有用的。
A rapid and simple method is described for the incorporation of monoclonal antibody coupled with palmitic acid into liposomes prepared by the reverse-phase evaporation method (Szoka, F. and papahadjopoulos, D. (1978) Proc. Natl. Acad. Sci. U.S.A. 75, 4194–4198). Palmitoyl antibody in 0.15% deoxycholate is added to a liposome suspension after the majority of the organic solvent has been removed by evaporation. Efficient incorporation (over 80%) of palmitoyl antibody occurred without leakage of the encapsulated drug. Native, unmodified antibody did not incorporate under identical conditions. About 50% of the incorporated antibodies could be readily digested by protease, while most of an internal protein marker was not, suggesting that about half of the antibodies were exposed on the outer surfaces of liposomes. Target-specific binding of antibody-liposomes has also been demonstrated in vitro with the RDM-4 lymphoma cells. This method offers a rapid and highly efficient attachment of functional antibody molecules to liposomes with high capture efficiency of drugs, and therefore should be useful in target-specific delivery of drugs mediated by liposomes.
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影响因子: --
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通讯作者: Hakomori,S
DOI: --
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影响因子: 7.8
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