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Han L, Song T, Wang X, Luo Y, Gu C, Li X, Wen J, Wen Z, Shi X. miR-21 Responsive Nanocarrier Targeting Ovarian Cancer Cells. Comput Struct Biotechnol J 2024; 24:196-204. [PMID: 38495121 PMCID: PMC10940798 DOI: 10.1016/j.csbj.2024.02.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 02/20/2024] [Accepted: 02/26/2024] [Indexed: 03/19/2024] Open
Abstract
In recent years, DNA origami-based nanocarriers have been extensively utilized for efficient cancer therapy. However, developing a nanocarrier capable of effectively protecting cargos such as RNA remains a challenge. In this study, we designed a compact and controllable DNA tubular origami (DTO) measuring 120 nm in length and 18 nm in width. The DTO exhibited appropriate structural characteristics for encapsulating and safeguarding cargo. Inside the DTO, we incorporated 20 connecting points to facilitate the delivery of cargoes to various ovarian and normal epithelial cell lines. Specifically, fluorescent-labeled DNA strands were attached to these sites as cargoes. The DTO was engineered to open upon encountering miR-21 through RNA/DNA strand displacement. Significantly, for the first time, we inhibited fluorescence using the compact DNA nanotube and observed dynamic fluorescent signals, indicating the controllable opening of DTO through live-cell imaging. Our results demonstrated that the DTO remained properly closed, exhibited effective internalization in ovarian cancer cells in vitro, showcasing marked differential expression of miR-21, and efficiently opened with short-term exposure to miR-21. Leveraging its autonomous behavior and compact design, the DTO emerges as a promising nanocarrier for various clinically relevant materials. It holds significant application prospects in anti-cancer therapy and the development of flexible biosensors.
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Affiliation(s)
- Liting Han
- Department of Gynecology 2, Renmin Hospital of Wuhan University, Wuhan, China
| | - Tao Song
- College of Computer Science and Technology, China University of Petroleum (East China), Qingdao, China
| | - Xinyu Wang
- Department of Gynecology 2, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yan Luo
- Department of Gynecology 2, Renmin Hospital of Wuhan University, Wuhan, China
| | - Chuanqi Gu
- Department of Gynecology 2, Renmin Hospital of Wuhan University, Wuhan, China
- College of Computer Science and Technology, China University of Petroleum (East China), Qingdao, China
- Institute of Computing Science and Technology, Guangzhou University, Guangzhou, China
| | - Xin Li
- Department of Gynecology 2, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jinda Wen
- Institute of Computing Science and Technology, Guangzhou University, Guangzhou, China
| | - Zhibin Wen
- Institute of Computing Science and Technology, Guangzhou University, Guangzhou, China
| | - Xiaolong Shi
- Institute of Computing Science and Technology, Guangzhou University, Guangzhou, China
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