Nanoparticle-mediated convection-enhanced delivery of a DNA intercalator to gliomas circumvents temozolomide resistance.
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| Abstract |
In patients with glioblastoma, resistance to the chemotherapeutic temozolomide (TMZ) limits any survival benefits conferred by the drug. Here we show that the convection-enhanced delivery of nanoparticles containing disulfide bonds (which are cleaved in the reductive environment of the tumour) and encapsulating an oxaliplatin prodrug and a cationic DNA intercalator inhibit the growth of TMZ-resistant cells from patient-derived xenografts, and hinder the progression of TMZ-resistant human glioblastoma tumours in mice without causing any detectable toxicity. Genome-wide RNA profiling and metabolomic analyses of a glioma cell line treated with the cationic intercalator or with TMZ showed substantial differences in the signalling and metabolic pathways altered by each drug. Our findings suggest that the combination of anticancer drugs with distinct mechanisms of action with selective drug release and convection-enhanced delivery may represent a translational strategy for the treatment of TMZ-resistant gliomas.
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| Authors | Yongheng Wang, Yuhang Jiang, Dengshuai Wei, Priya Singh, Yingjie Yu, Teresa Lee, Lingpu Zhang, Hanna K Mandl, Alexandra S Piotrowski-Daspit, Xinyuan Chen, Fan Li, Xing Li, Yiyu Cheng, Alexander Josowitz, Fan Yang, Yao Zhao, Fuyi Wang, Zhenwen Zhao, Anita Huttner, Ranjit S Bindra, Haihua Xiao, W Mark Saltzman |
| Journal | Nature biomedical engineering (Nat Biomed Eng) Vol. 5 Issue 9 Pg. 1048-1058 (09 2021) ISSN: 2157-846X [Electronic] England |
| PMID | 34045730 (Publication Type: Journal Article, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, Non-P.H.S.) |
| Copyright | © 2021. The Author(s), under exclusive licence to Springer Nature Limited. |
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