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Zhu J, Peng L, Jehan S, Wang H, Chen X, Zhao S, Zhou W. Activable Photodynamic DNA Probe with an "AND" Logic Gate for Precision Skin Cancer Therapy. RESEARCH (WASHINGTON, D.C.) 2024; 7:0295. [PMID: 38269029 PMCID: PMC10807844 DOI: 10.34133/research.0295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 12/10/2023] [Indexed: 01/26/2024]
Abstract
Photodynamic therapy (PDT) has emerged as a promising approach for squamous cell carcinoma treatment but hindered by tumor hypoxia, acquired resistance, phototoxicity, and so on. To address these issues, we developed a smart strategy utilizing activable photosensitizers delivered by an aptamer-functionalized DNA probe (ADP). The ADP incorporated an AS1411 aptamer for tumor targeting and a linear antisense oligonucleotide (ASO) for recognition of Survivin mRNA. In the absence of the target, PDT remained quenched, thereby avoiding phototoxicity during circulation and nonselective distribution. With the aid of the aptamer, ADP achieved selective targeting of tumors. Upon internalization, ADP targeted recognized Survivin mRNA, triggering PDT activation, and releasing ASO to down-regulate Survivin expression and reverse tumor resistance. Consequently, the activable photosensitizers exhibited an "AND" logic gate, combining tumor-targeting delivery and tumor-related gene activation, thus enhancing its specificity. Additionally, the incorporation of hemin into the ADP provided catalase activity, converting tumor-abundant H2O2 into O2, thereby ameliorating tumor hypoxia. The resulting functionalized G-quadruplex/hemin-DNA probe complex demonstrated targeted delivery and activation, minimized side effects, and enhanced PDT efficacy in both xenograft tumor-bearing mice and patient-derived xenograft models. This study offers a unique and promising platform for efficient and safe PDT, thus holding great potential for future clinical translation and improved cancer therapy.
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Affiliation(s)
- Jiaojiao Zhu
- Xiangya School of Pharmaceutical Sciences,
Central South University, Changsha, Hunan 410013, China
| | - Lanyuan Peng
- Department of Dermatology, Hunan Engineering Research Center of Skin Health and Disease, Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital,
Central South University, Changsha, Hunan 410008, China
| | - Shah Jehan
- Xiangya School of Pharmaceutical Sciences,
Central South University, Changsha, Hunan 410013, China
- Department of Vascular Surgery,
The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510120, China
| | - Haiyang Wang
- Department of Vascular Surgery,
The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510120, China
| | - Xiang Chen
- Department of Dermatology, Hunan Engineering Research Center of Skin Health and Disease, Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital,
Central South University, Changsha, Hunan 410008, China
| | - Shuang Zhao
- Department of Dermatology, Hunan Engineering Research Center of Skin Health and Disease, Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital,
Central South University, Changsha, Hunan 410008, China
- Furong Laboratory, Changsha, Hunan, China
| | - Wenhu Zhou
- Xiangya School of Pharmaceutical Sciences,
Central South University, Changsha, Hunan 410013, China
- Key Laboratory of Biological Nanotechnology of National Health Commission, Changsha, Hunan 410008, China
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A nucleolin-activated polyvalent aptamer nanoprobe for the detection of cancer cells. Anal Bioanal Chem 2023; 415:2217-2226. [PMID: 36864310 DOI: 10.1007/s00216-023-04629-3] [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: 01/07/2023] [Revised: 02/21/2023] [Accepted: 02/23/2023] [Indexed: 03/04/2023]
Abstract
Sensitive detection of cancer cells plays a critical role in early cancer diagnosis. Nucleolin, overexpressed on the surface of cancer cells, is regarded as a candidate biomarker for cancer diagnosis. Thus, cancer cells can be detected through the detection of membrane nucleolin. Herein, we designed a nucleolin-activated polyvalent aptamer nanoprobe (PAN) to detect cancer cells. In brief, a long single-stranded DNA with many repeated sequences was synthesized through rolling circle amplification (RCA). Then the RCA product acted as a scaffold chain to combine with multiple AS1411 sequences, which was doubly modified with fluorophore and quenching group, respectively. The fluorescence of PAN was initially quenched. Upon binding to target protein, the conformation of PAN changed, leading to the recovery of fluorescence. The fluorescence signal of cancer cells treated with PAN was much brighter compared with that of monovalent aptamer nanoprobes (MAN) at the same concentration. Furthermore, the binding affinity of PAN to B16 cells was proved to be 30 times higher than that of MAN by calculating the dissociation constants. The results indicated that PAN could specifically detect target cells, and this design concept has potential to become promising in cancer diagnosis.
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Chen J, Xu J, Xiang J, Wan T, Deng H, Li D. A multivalent activatable aptamer probe with ultralow background signal and high sensitivity for diagnosis of lung adenocarcinoma. Talanta 2022. [DOI: 10.1016/j.talanta.2022.124056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Aliouat H, Peng Y, Waseem Z, Wang S, Zhou W. Pure DNA scaffolded drug delivery systems for cancer therapy. Biomaterials 2022; 285:121532. [DOI: 10.1016/j.biomaterials.2022.121532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 04/04/2022] [Accepted: 04/15/2022] [Indexed: 02/07/2023]
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Wang S, Ouyang L, Deng G, Deng Z, Wang S. DNA adsorption on nanoscale zeolitic imidazolate framework-8 enabling rational design of a DNA-based nanoprobe for gene detection and regulation in living cells. RSC Adv 2020; 10:31012-31021. [PMID: 35516055 PMCID: PMC9056336 DOI: 10.1039/d0ra06218a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 08/14/2020] [Indexed: 01/05/2023] Open
Abstract
DNA functionalized nanomaterials have attracted tremendous attention for bioanalytical applications. Owing to exceptional fluorescence quenching ability, most DNA-based nanoprobes were designed with turn-on signals for target gene detection, while only a few of them could simultaneously achieve gene detection and regulation in one system. In this study, we explored the use of nanoscale zeolitic imidazolate framework-8 (ZIF-8) as a building block to construct a DNA-based nanoprobe. We found ZIF-8 could stably adsorb DNA to resist the dissociation by various biological ligands, enabling potential biological applications. However, ZIF-8 was not a nano-quencher to turn off the fluorophore labeling on the adsorbed DNA. We therefore designed a DNAzyme embedded molecular beacon (DMB) to functionalize ZIF-8. After endocytosis, ZIF-8 was disintegrated to release DMB for target mRNA detection, and the co-released Zn2+ acted as an effective cofactor to activate the embedded DNAzyme for mRNA regulation. This study provides a versatile nano-platform to realize multiple functions inside cells by using functional nucleic acids, which holds great promise for theranostic applications. Boosting DNA-based nanotheranostics for gene detection and regulation by ZIF-8.![]()
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Affiliation(s)
- Shengmei Wang
- Department of Pharmacy
- The Third Xiangya Hospital
- Central South University
- Changsha
- China
| | - Linqi Ouyang
- Department of Pharmacy
- The Third Xiangya Hospital
- Central South University
- Changsha
- China
| | - Guiming Deng
- Department of Pharmacy
- The First Hospital of Hunan University of Chinese Medicine
- Changsha
- China
| | - Zhenzhen Deng
- Department of Pharmacy
- The Third Xiangya Hospital
- Central South University
- Changsha
- China
| | - Shengfeng Wang
- Department of Pharmacy
- The Third Xiangya Hospital
- Central South University
- Changsha
- China
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Li L, Meng Y, Li L, Wang S, Ding J, Zhou W. A tetrahedral DNA nanoflare for fluorometric determination of nucleic acids and imaging of microRNA using toehold strands. Mikrochim Acta 2019; 186:824. [PMID: 31754805 DOI: 10.1007/s00604-019-3931-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 10/12/2019] [Indexed: 12/14/2022]
Abstract
The authors describe a tetrahedral DNA nanostructure loaded with SYBR Green (SG-TDN) for fluorometric determination of nucleic acids. After intercalating into the TDN, fluorescence of SG is enhanced by 260-fold (exc 480 nm, em 524 nm), and the resulting SG-TDN nanoflare displays >7-fold stronger fluorescence than that of FAM-labeled TDN. The SG-TDNs were coupled to magnetic microparticles and polydopamine nanoparticles to construct multi-functional nanoprobes through sequence hybridization using a toehold strand. The method was applied to detect a stretch of microRNA sequence (20 bp) in buffer and in undiluted serum with excellent selectivity, over a wide linear range and with a low limit of detection (0.2 nM). The probe was also applied for visualization of tumor-related microRNA in living cells via fluorescence imaging. Graphical abstract Schematic representation of tetrahedron-based DNA nanoflare for fluorometric nucleic acid determination in undiluted blood serum and living cells.
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Affiliation(s)
- Liang Li
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan, China
| | - Yingcai Meng
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan, China
| | - Ling Li
- School of Pharmaceutical Sciences, Changsha Medical University, Changsha, 410013, Hunan, China
| | - Shengfeng Wang
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan, China
| | - Jinsong Ding
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan, China.
| | - Wenhu Zhou
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan, China.
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