申请人:UNIVERSITY OF CINCINNATI
公开号:US20160101188A1
公开(公告)日:2016-04-14
Compositions and methods for treating cancer in a subject are described herein. The composition includes modified nucleobases and nucleosides that are converted in the cell to nucleotides that are incorporated into growing DNA and result in termination of DNA elongation. The nucleobases and nucleotides are incorporated with a drug delivery system (DDS). The DDS includes β-cyclodextrin. The nucleobases and nucleotides are conjugated to the β-cyclodextrin by an acid labile linker that releases the nucleobases and nucleotides in the acidic environment of cancer cells. The DDS may also include a targeting ligand that targets the DDS/nucleobase or nucleotide conjugate to cancer cells. The DDS/nucleobase or nucleotide conjugate may self form into nanoparticles and may be administered to a subject with cancer in an amount effective to treat said cancer.
本文描述了用于治疗患者癌症的组合物和方法。该组合物包括经过修饰的核碱基和核苷,这些核碱基和核苷在细胞中转化为核苷酸,并被合并到正在生长的DNA中,导致DNA延伸终止。这些核碱基和核苷与药物输送系统(DDS)一起使用。DDS包括β-环糊精。核碱基和核苷通过酸敏链连接到β-环糊精上,该链在癌细胞的酸性环境中释放核碱基和核苷。DDS还可以包括靶向配体,将DDS/核碱基或核苷共轭物靶向癌细胞。DDS/核碱基或核苷共轭物可以自行形成纳米粒子,并可以以有效治疗癌症的剂量给患者服用。