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Liu Y, Yang H, Liu Q, Pan M, Wang D, Pan S, Zhang W, Wei J, Zhao X, Ji J. Selenocystine-Derived Label-Free Fluorescent Schiff Base Nanocomplex for siRNA Delivery Synergistically Kills Cancer Cells. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27041302. [PMID: 35209090 PMCID: PMC8878402 DOI: 10.3390/molecules27041302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 01/24/2022] [Accepted: 02/08/2022] [Indexed: 11/16/2022]
Abstract
Chemo and siRNA synergic treatments for tumors is a promising new therapeutic trend. Selenocystine, a selenium analog of cysteine, has been considered a potential antitumor agent due to its redox perturbing role. In this study, we developed a nanocarrier for siRNA based on a selenocystine analog engineered polyetherimide and achieved traceable siRNA delivery and the synergic killing of tumor cells. Notably, we applied the label-free Schiff base fluorescence mechanism, which enabled us to trace the siRNA delivery and to monitor the selenocystine analogs’ local performance. A novel selenocystine-derived fluorescent Schiff base linker was used to crosslink the polyetherimide, thereby generating a traceable siRNA delivery vehicle with green fluorescence. Moreover, we found that this compound induced tumor cells to undergo senescence. Together with the delivery of a siRNA targeting the anti-apoptotic BCL-xl/w genes in senescent cells, it achieved a synergistic inhibition function by inducing both senescence and apoptosis of tumor cells. Therefore, this study provides insights into the development of label-free probes, prodrugs, and materials towards the synergic strategies for cancer therapy.
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Affiliation(s)
- Yang Liu
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou 310058, China;
| | - Haoying Yang
- Henan Key Laboratory of Brain Targeted Bio-Nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng 475004, China; (H.Y.); (Q.L.); (M.P.); (S.P.); (W.Z.)
| | - Qian Liu
- Henan Key Laboratory of Brain Targeted Bio-Nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng 475004, China; (H.Y.); (Q.L.); (M.P.); (S.P.); (W.Z.)
| | - Mingming Pan
- Henan Key Laboratory of Brain Targeted Bio-Nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng 475004, China; (H.Y.); (Q.L.); (M.P.); (S.P.); (W.Z.)
| | - Danli Wang
- Zhoushan Hospital of Zhejiang Province, Zhoushan 316004, China;
| | - Shiyuan Pan
- Henan Key Laboratory of Brain Targeted Bio-Nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng 475004, China; (H.Y.); (Q.L.); (M.P.); (S.P.); (W.Z.)
| | - Weiran Zhang
- Henan Key Laboratory of Brain Targeted Bio-Nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng 475004, China; (H.Y.); (Q.L.); (M.P.); (S.P.); (W.Z.)
| | - Jinfeng Wei
- Henan Key Laboratory of Brain Targeted Bio-Nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng 475004, China; (H.Y.); (Q.L.); (M.P.); (S.P.); (W.Z.)
- Correspondence: (J.W.); (X.Z.); (J.J.)
| | - Xiaowei Zhao
- Henan Key Laboratory of Brain Targeted Bio-Nanomedicine, School of Life Sciences & School of Pharmacy, Henan University, Kaifeng 475004, China; (H.Y.); (Q.L.); (M.P.); (S.P.); (W.Z.)
- Correspondence: (J.W.); (X.Z.); (J.J.)
| | - Junfeng Ji
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou 310058, China;
- Correspondence: (J.W.); (X.Z.); (J.J.)
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