DSPE-PEG-Maleimide, DSPE-PEG-M

Angiogenic Vessel-Targeting DDS by Liposomalized Oligopeptides

of PEGylated liposomes, we synthesized a novel lipid derivative of the peptide, distearoylphosphatidylethanolamine–polyethyleneglycol–APRPG (DSPE–PEG–APRPG). The lipid derivative of APRPG peptide is expected to be readily incorporated into liposomal membrane

药物递送：抗体偶联脂质纳米颗粒 (Ab-LNP) — 体内 CAR-T 的前沿策略

。 图 5. 针对 Ephrin A2 (EphA2) 的 Ab-LNP 的示意图[5]。 pH 敏感型紫杉烷类免疫脂质体的示意图。从外到内依次为：(a) Ephrin A2 抗体作为活性靶向配体，以脂质-scFv 偶联物 (scFv-PEG-DSPE) 的形式插入脂质双层；(b) 聚乙二醇二硬脂酰甘油 (PEG-DSG) 用于延长循环时间，鞘磷脂/胆固醇/PEG-DSG 脂质基质用于提高稳定性；(c) SOS 作为载药助剂，用于高效稳定地包封紫杉烷类前药。粒径约为 110 nm，用于被动靶向

PEGylation of Antibody Fragments for Half-Life Extension

of polyethylene glycol (PEG) chain to protein using PEGylation technology. The most suitable approach employs PEG-maleimide attachment to cysteines, either to the free hinge cysteine or to C-terminal cysteines involved in interchain disulfide linkage of the heavy