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Zeng WJ, Chen ZP, Lei YM, Liang WB, Chai YQ, Yuan R, Zhuo Y. Multienzymatic Orthogonal Activation of DNA Codec Enables Tumor-Specific Imaging of Base Excision Repair Activity. Anal Chem 2024; 96:15915-15923. [PMID: 39324376 DOI: 10.1021/acs.analchem.4c02762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2024]
Abstract
Accurate monitoring of base excision repair (BER) activity in cancer cells is critical for advancing the comprehension of DNA repair processes, gaining insights into cancer development, and guiding treatment strategies. However, current assay techniques for assessing BER activity in cancer cells face challenges due to the heterogeneous origins and diversity of BER enzymes. In this work, we present a highly reliable triple loop-interlocked DNA codec (GATED) that enables precise assessment of BER activity in cancer cells through signal amplification mediated by multienzyme orthogonal activation. The GATED device features a dumbbell-shaped DNA probe to encode two BER enzymes for BER-related signal conversion as well as two bound circular DNA to decode the apurinic/apyrimidinic sites for apurinic/apyrimidinic endonuclease 1 (APE1)-mediated signal amplification. Importantly, GATED is orthogonally activated by multiple target BER enzymes (i.e., uracil DNA glycosylase, thymine DNA glycosylase, and APE1), resulting in a unified fluorescent signal that significantly improves the detection specificity and sensitivity to BER enzymes. Additionally, we demonstrate that the GATED has exceptional biostability within complex biological systems, where it was successfully employed to monitor BER activity in cancer cells with high specificity and enabled cell-based high-throughput screening for BER inhibitors. The GATED provides a much-needed tool for the real-time monitoring of BER activity and the screening of BER inhibitors in cancer cells, potentially advancing both the investigation and clinical application of BER biology.
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Affiliation(s)
- Wei-Jia Zeng
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Zhao-Peng Chen
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Yan-Mei Lei
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Wen-Bin Liang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Ya-Qin Chai
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Ruo Yuan
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Ying Zhuo
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
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Hou J, Wang J, Han J, Wang J, Chao D, Dong Q, Fan D, Dong S. An intelligent ratiometric fluorescent assay based on MOF nanozyme-mediated tandem catalysis that guided by contrary logic circuit for highly sensitive sarcosine detection and smartphone-based portable sensing application. Biosens Bioelectron 2024; 249:116035. [PMID: 38244294 DOI: 10.1016/j.bios.2024.116035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/31/2023] [Accepted: 01/12/2024] [Indexed: 01/22/2024]
Abstract
As the well-known test-indicator for early prostate cancer (PCa), sarcosine (SA) is closely related to the differential pathological process, which makes its accurate determination increasingly significant. Herein, we for the first time expanded the peroxidase (POD)-like property of facile-synthesized Zn-TCPP(Fe) MOF to fluorescent substrates and exploited it to ratiometric fluorescent (RF) sensing. By harnessing the effective catalytic oxidation of MOF nanozyme toward two fluorescent substrates (Scopoletin, SC; Amplex Red, AR) with contrary changes, and target-responsive (SA + SOx)/MOF/(SC + AR) tandem catalytic reaction, we constructed the first MOF nanozyme-based RF sensor for the quantitative determination of SA. Superior to previous works, the operation of this RF sensor is under the guidance of AND-(AND^NAND) contrary logic circuit. The dual-channel binary output changes (from 1/0 to 0/1) not only enable the intelligent logical recognition of SA, bringing strengthened reliability and accuracy, but also manifest the proof-of-concept discrimination of PCa individuals and healthy ones. Through recording the fluorescence alterations of SC (F465) and AR (F585), two segments of linear relationships between ratiometric values (F585/F465) and varied contents of SA are realized successfully. The LOD for SA could reach to as low as 39.98 nM, which outperforms all nanozyme-originated SA sensors reported till now. Moreover, this sensor also demonstrates high selectivity and satisfactory performance in human serum samples. Furthermore, the portable sensing of SA is realized under the assistance of smartphone-based RGB analysis, demonstrating the potential of point-of-care diagnostics of PCa in the future.
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Affiliation(s)
- Jingyu Hou
- Laboratory for Marine Drugs and Bioproducts, National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong, 266003, China
| | - Jun Wang
- Laboratory for Marine Drugs and Bioproducts, National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong, 266003, China
| | - Jiawen Han
- Laboratory for Marine Drugs and Bioproducts, National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong, 266003, China
| | - Juan Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; Intelligent Wearable Engineering Research Center of Qingdao, Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao, 266071, China
| | - Daiyong Chao
- Shandong Second Medical University, Weifang, 261053, China
| | - Qing Dong
- Shandong Second Medical University, Weifang, 261053, China
| | - Daoqing Fan
- Laboratory for Marine Drugs and Bioproducts, National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong, 266003, China; State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.
| | - Shaojun Dong
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
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Guo K, Lin X, Duan N, Lu C, Wang Z, Wu S. Detection of acrylamide in food based on MIL-glucose oxidase cascade colorimetric aptasensor. Anal Chim Acta 2024; 1288:342150. [PMID: 38220284 DOI: 10.1016/j.aca.2023.342150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 12/15/2023] [Accepted: 12/15/2023] [Indexed: 01/16/2024]
Abstract
BACKGROUND Maillard reaction involves the polymerization, condensation, and other reactions between compounds containing free amino groups and reducing sugars or carbonyl compounds during heat processing. This process endows unique flavors and colors to food, while it can also produce numerous hazards. Acrylamide (AAm) is one of Maillard's hazards with neurotoxicity and carcinogenicity, these effects can trigger mutations and alternations in gene expression in human cells and accelerate organ aging. An accurate and reliable acrylamide detection method with high sensitivity and specificity for future regulatory activities is urgently needed. RESULTS Herein, we constructed a colorimetric aptasensor with the hybridization of MIL-glucose oxidase (MGzyme)-cDNA and magnetic nanoparticle-aptamer (MNP-Apt) to specifically detect AAm. The incorporation of MB-Apt and AAm released MGzyme-cDNA in the supernatant, took the supernatant out, with the addition of glucose and TMB, MGzyme would oxidize glucose, the resulting •OH facilitated the oxidation of colorless TMB to blue ox-TMB. The absorbance value at 652 nm, which indicates the characteristic absorption peak of ox-TMB, exhibited a proportion to the concentration of AAm. MGzyme avoided the addition of harmful intermediate H2O2 and created an acid microenvironment for the catalytic reaction. MNP-Apt possessed the advantages of high specificity and simplified separation. Under optimal conditions, this method displayed a linear range of 0.01-100 μM with the limit of detection of 1.53 nM. With the spiked analysis data cross-verified by ELISA kit, this aptasensor was proven to specifically detect AAm at low concentrations. SIGNIFICANCE This colorimetric aptasensor was the integration of aptamer and the enzyme-cascade system, which could broaden the applicable range of enzyme-cascade system, break the limits of specific detection of substrates, eliminate the need for harmful intermediates, improve the reaction efficiency, implement the specific detection, whilst enabling the accurate detection of AAm. Given these remarkable performances, this method has shown significant potential in the field of food safety inspection.
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Affiliation(s)
- Kaixi Guo
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, 214122, China
| | - Xianfeng Lin
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, 214122, China
| | - Nuo Duan
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, 214122, China
| | - Chunxia Lu
- Institute of Animal Husbandry and Veterinary Science, Xinjiang Academy of Agriculture and Reclamation Sciences, Shihezi, 83200, China
| | - Zhouping Wang
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, 214122, China
| | - Shijia Wu
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, 214122, China.
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Han J, Zhang Y, Lv X, Fan D, Dong S. A facile, low-cost bimetallic iron-nickel MOF nanozyme-propelled ratiometric fluorescent sensor for highly sensitive and selective uric acid detection and its smartphone application. NANOSCALE 2024; 16:1394-1405. [PMID: 38165141 DOI: 10.1039/d3nr05028a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
As a kind of well-known disease biomarker, uric acid (UA) is closely associated with normal metabolism and health. Despite versatile nanozymes facilitating the analysis of UA, most previous works could only generate single-signal outputs with unsatisfactory detection performance. Exploring a novel ratiometric fluorescent UA sensor with high sensitivity, reliability and portable sensing ability based on facile, low-cost nanozymes is still challenging. Herein, we report the first metal-organic-framework (MOF) nanozyme-originated ratiometric fluorescent UA sensor based on Fe3Ni-MOF-NH2 propelled UA/uricase/o-phenylenediamine tandem catalytic reaction. Different from previous reports, the peroxidase-like property and fluorescence of Fe3Ni-MOF-NH2 were simultaneously employed. In the absence of UA, only the MOF's fluorescence at 430 nm (FI430) can be observed, while the addition of UA will initiate UA/uricase catalytic reaction, and the generated H2O2 could oxidize o-phenylenediamine into highly fluorescent 2,3-diaminophenazine (DAP) (emission at 565 nm, FI565) under the catalysis of the MOF nanozyme. Coincidently, MOF's fluorescence can be quenched by DAP via the inner filter effect, resulting in a low FI430 value and high FI565 value, respectively. Therefore, H2O2 and UA can be alternatively detected through monitoring the above contrary fluorescence changes. The limit of detection for UA is 24 nM, which is much lower than those in most previous works, and the lowest among nanozyme-based ratiometric fluorescent UA sensors reported to date. Moreover, the portable sensing of UA via smartphone-based RGB analysis was facilely achieved by virtue of the above nanozyme-propelled tandem catalytic system, and MOF nanozyme-based molecular contrary logic pairs were further implemented accordingly.
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Affiliation(s)
- Jiawen Han
- Laboratory for Marine Drugs and Bioproducts, National Laboratory for Marine Science and Technology; Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong, 266003, China.
| | - Yuwei Zhang
- Laboratory for Marine Drugs and Bioproducts, National Laboratory for Marine Science and Technology; Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong, 266003, China.
| | - Xujuan Lv
- Laboratory for Marine Drugs and Bioproducts, National Laboratory for Marine Science and Technology; Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong, 266003, China.
| | - Daoqing Fan
- Laboratory for Marine Drugs and Bioproducts, National Laboratory for Marine Science and Technology; Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong, 266003, China.
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Shaojun Dong
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
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