申请人:Zhao Hong
公开号:US20130018010A1
公开(公告)日:2013-01-17
The present invention relates to polymeric conjugates of adenine nucleoside analogs. In particular, the invention relates to multi-arm polyethylene glycol conjugates of adenine nucleoside analogs and use thereof. The present invention, more specifically, provides polymeric conjugates of toyocamycin and its derivatives. Furthermore, the present invention provides a method for preparing the polymeric conjugates of adenine nucleoside analogs and a method of using the same for treating a cancer, inhibiting the growth or proliferation of cancer cells, treating a viral infection, treating a disease or condition associated with abnormal expression of VEGF. Most polymeric conjugates of toyocamycin was stable in PBS but released toyocamycin in vivo to provided inhibition of cancer cell growth.
本发明涉及腺嘌呤核苷类似物的聚合物共轭物。具体而言,本发明涉及腺嘌呤核苷类似物的多臂聚乙二醇共轭物及其使用。更具体地说,本发明提供了豆杆霉素及其衍生物的聚合物共轭物。此外,本发明提供了一种制备腺嘌呤核苷类似物的聚合物共轭物的方法以及使用该方法治疗癌症、抑制癌细胞生长或增殖、治疗病毒感染、治疗与VEGF异常表达相关的疾病或病况的方法。大多数豆杆霉素的聚合物共轭物在PBS中稳定,但在体内释放豆杆霉素以提供抑制癌细胞生长的作用。