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Cui H, Wang Y, Chen L, Qian M, Zhang L, Zheng X, Yang X, Chen L, Zhao Y, Chen Q, Wang J. Chemotherapeutic potency stimulated by SNAI1-knockdown based on multifaceted nanomedicine. J Control Release 2021; 337:343-355. [PMID: 34324894 DOI: 10.1016/j.jconrel.2021.07.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 07/04/2021] [Accepted: 07/23/2021] [Indexed: 10/20/2022]
Abstract
Molecular insights into tumorigenesis have uncovered intimate correlation of SNAI1 with tumor malignancy. Herein, to explore merits of SNAI1-knockdown in tumor therapy, we harnessed RNA interference tool (shSNAI1), together with chemotherapeutic doxorubicin. Owing to abundant hydroxyl groups, pullulan was attempted to be covalently conjugated with a multiple of functional moieties, including positively-charged oligoethylenimine components for electrostatic entrapment of polyanionic shSNAI1 and hydrophobic components for entrapment of lipophilic doxorubicin. Notably, the aforementioned covalent conjugations were tailored to be detachable in response to intracellular reducing microenvironment owing to redox disulfide linkage, thereby accounting for selective intracellular liberation of the therapeutic payloads. Moreover, the surface of nanomedicine was modified with hyaluronic acid, endowing not only excellent biocompatibilities but active tumor-targeting function due to its receptors (CD44) overexpressed on tumor cells. Subsequent investigations approved appreciably targeted co-delivery of shSNAI1 and doxorubicin into solid lung tumors via systemic administration and demonstrated critical contribution of SNAI1-knockdown in amplifying chemotherapeutic potencies.
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Affiliation(s)
- Hongyan Cui
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China; School of Bioengineering, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China
| | - Yue Wang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China; Department of Gastric Cancer, Liaoning Cancer Hospital & Institute (Cancer Hospital of China Medical University), Shenyang, Liaoning 110042, China
| | - Lili Chen
- School of Bioengineering, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China
| | - Ming Qian
- School of Bioengineering, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China
| | - Liuwei Zhang
- School of Bioengineering, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China
| | - Xiujue Zheng
- Department of Neurosurgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Xi Yang
- Department of Neurosurgery, South Campus, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Li Chen
- School of Mechanical Engineering, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China
| | - Yan Zhao
- Department of Gastric Cancer, Liaoning Cancer Hospital & Institute (Cancer Hospital of China Medical University), Shenyang, Liaoning 110042, China.
| | - Qixian Chen
- School of Bioengineering, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China.
| | - Jingyun Wang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China; School of Bioengineering, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China.
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