Cellular delivery of doxorubicin via pH-controlled hydrazone linkage using multifunctional nano vehicle based on poly(β-l-malic acid).

Cellular delivery of doxorubicin via pH-controlled hydrazone linkage using multifunctional nano vehicle based on poly(β-l-malic acid).
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DOI:
10.3390/ijms130911681
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发表时间:
2012
影响因子:
5.6
通讯作者:
Ljubimova JY
Ljubimova JY
中科院分区:
生物学2区
文献类型:
--
作者:
Patil R;Portilla-Arias J;Ding H;Konda B;Rekechenetskiy A;Inoue S;Black KL;Holler E;Ljubimova JY

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Doxorubicin (DOX) is currently used in cancer chemotherapy to treat many tumors and shows improved delivery, reduced toxicity and higher treatment efficacy when being part of nanoscale delivery systems. However, a major drawback remains its toxicity to healthy tissue and the development of multi-drug resistance during prolonged treatment. This is why in our work we aimed to improve DOX delivery and reduce the toxicity by chemical conjugation with a new nanoplatform based on polymalic acid. For delivery into recipient cancer cells, DOX was conjugated via pH-sensitive hydrazone linkage along with polyethylene glycol (PEG) to a biodegradable, non-toxic and non-immunogenic nanoconjugate platform: poly(β-l-malic acid) (PMLA). DOX-nanoconjugates were found stable under physiological conditions and shown to successfully inhibit in vitro cancer cell growth of several invasive breast carcinoma cell lines such as MDA-MB-231 and MDA-MB- 468 and of primary glioma cell lines such as U87MG and U251.
明胶酶刺激策略增强多西紫杉醇负载的聚乙二醇-聚己内酯纳米颗粒的肿瘤递送和治疗效果
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