摘要 纳米靶向药物递送体系(Targeting drug delivery system,TDDS)是诊断和治疗癌症的一种有效方法,因其在特定的肿瘤部位高度累积,且药物毒副作用小和生物利用度高,而受到广泛关注。转铁蛋白受体在多数癌细胞表面过度表达,但在正常细胞表面低表达或未表达,与转铁蛋白配体具有高度的亲和力。转铁蛋白偶联的TDDS具有靶向性强、毒副小等优点。本文主要论述转铁蛋白受体介导TDDS的靶向作用机制、常见转铁蛋白功能化纳米药物递送载体的类型以及三类仍处于临床前研究的转铁蛋白功能化纳米TDDS,旨在为肿瘤靶向给药的进一步研究提供参考和新思路。
Abstract: Nano-sized targeted drug delivery systems (TDDS) are the effective method for the diagnosis and treatment of cancer, which is highly accumulated in specific tumor sites, with low side effects and high bioavailability, so it has attracted wide attention. Transferrin receptors are overexpressed on the surface of most cancer cells, but low or not expressed on the surface of normal cells, and have a high affinity with transferrin ligand. Transferrin-coupled TDDS have the advantages of strong targeting and less toxic side effects. This paper mainly discusses the targeting mechanism of TDDS mediated by transferrin receptor, the types of common transferrin functionalized nano-sized targeted drug delivery carriers and three kinds of transferrin functionalized nano-sized TDDS which are still in preclinical research, so as to provide reference and new ideas for further research of TDDS.
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