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Zhao NN, Wang Q, Yang DM, Li DL, Han Y, Zhao S, Zou X, Zhang CY. Elongation and Ligation-Mediated Differential Coding for Label-Free and Locus-Specific Analysis of 8-Oxo-7,8-dihydroguanine in DNA. Anal Chem 2024; 96:5323-5330. [PMID: 38501982 DOI: 10.1021/acs.analchem.4c00387] [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: 03/20/2024]
Abstract
Oxidative DNA damage is closely associated with the occurrence of numerous human diseases and cancers. 8-Oxo-7,8-dihydroguanine (8-oxoG) is the most prevalent form of DNA damage, and it has become not only an oxidative stress biomarker but also a new epigenetic-like biomarker. However, few approaches are available for the locus-specific detection of 8-oxoG because of the low abundance of 8-oxoG damage in DNA and the limited sensitivity of existing assays. Herein, we demonstrate the elongation and ligation-mediated differential coding for label-free and locus-specific analysis of 8-oxoG in DNA. This assay is very simple without the involvement of any specific labeled probes, complicated steps, and large sample consumption. The utilization of Bsu DNA polymerase can specifically initiate a single-base extension reaction to incorporate dATP into the opposite position of 8-oxoG, endowing this assay with excellent selectivity. The introduction of cascade amplification reaction significantly enhances the sensitivity. The proposed method can monitor 8-oxoG with a limit of detection of 8.21 × 10-19 M (0.82 aM), and it can identify as low as 0.001% 8-oxoG damage from a complex mixture with excessive undamaged DNAs. This method can be further applied to measure 8-oxoG levels in the genomic DNA of human cells under diverse oxidative stress, holding prospect potential in the dynamic monitoring of critical 8-oxoG sites, early clinical diagnosis, and gene damage-related biomedical research.
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Affiliation(s)
- Ning-Ning Zhao
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Qian Wang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Dong-Ming Yang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Dong-Ling Li
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Yun Han
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Shulin Zhao
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Xiaoran Zou
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Chun-Yang Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
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2
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Li B, Wang C. Endonuclease IV and T4 ligase enhanced detection of mutations in low abundance. Analyst 2024; 149:1050-1054. [PMID: 38231135 DOI: 10.1039/d3an02083e] [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: 01/18/2024]
Abstract
We propose a mutant detection approach based on endonuclease IV and DNA ligase in combination with qPCR. The enzymes functioned cooperatively to facilitate PCR for low abundance DNA detection. We demonstrate that our approach can distinguish mutations as low as 0.01%, indicating the potential application of this strategy in early cancer diagnosis.
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Affiliation(s)
- Bo Li
- Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010020, China.
| | - Chunyan Wang
- Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010020, China.
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3
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Dong JH, Zhang RH, Zhao LL, Xue CY, Pan HY, Zhong XY, Zhou YL, Zhang XX. Identification and Quantification of Locus-Specific 8-Oxo-7,8-dihydroguanine in DNA at Ultrahigh Resolution Based on G-Triplex-Assisted Rolling Circle Amplification. Anal Chem 2024; 96:437-445. [PMID: 38150621 DOI: 10.1021/acs.analchem.3c04498] [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: 12/29/2023]
Abstract
Damage of reactive oxygen species to various molecules such as DNA has been related to many chronic and degenerative human diseases, aging, and even cancer. 8-Oxo-7,8-dihydroguanine (OG), the most significant oxidation product of guanine (G), has become a biomarker of oxidative stress as well as gene regulation. The positive effect of OG in activating transcription and the negative effect in inducing mutation are a double-edged sword; thus, site-specific quantification is helpful to quickly reveal the functional mechanism of OG at hotspots. Due to the possible biological effects of OG at extremely low abundance in the genome, the monitoring of OG is vulnerable to signal interference from a large amount of G. Herein, based on rolling circle amplification-induced G-triplex formation and Thioflavin T fluorescence enhancement, an ultrasensitive strategy for locus-specific OG quantification was constructed. Owing to the difference in the hydrogen-bonding pattern between OG and G, the nonspecific background signal of G sites was completely suppressed through enzymatic ligation of DNA probes and the triggered specificity of rolling circle amplification. After the signal amplification strategy was optimized, the high detection sensitivity of OG sites with an ultralow detection limit of 0.18 amol was achieved. Under the interference of G sites, as little as 0.05% of OG-containing DNA was first distinguished. This method was further used for qualitative and quantitative monitoring of locus-specific OG in genomic DNA under oxidative stress and identification of key OG sites with biological function.
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Affiliation(s)
- Jia-Hui Dong
- Beijing National Laboratory for Molecular Sciences (BNLMS), MOE Key Laboratory of Bioorganic Chemistry and Molecular Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Run-Hong Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS), MOE Key Laboratory of Bioorganic Chemistry and Molecular Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Ling-Li Zhao
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Chen-Yu Xue
- Key Laboratory of Forensic Toxicology, Ministry of Public Security, Beijing 100191, China
| | - Hui-Yu Pan
- Beijing National Laboratory for Molecular Sciences (BNLMS), MOE Key Laboratory of Bioorganic Chemistry and Molecular Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xin-Ying Zhong
- Central Research Institute, Shanghai Pharmaceuticals Holding Co., Ltd., Shanghai 201203, China
| | - Ying-Lin Zhou
- Beijing National Laboratory for Molecular Sciences (BNLMS), MOE Key Laboratory of Bioorganic Chemistry and Molecular Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xin-Xiang Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS), MOE Key Laboratory of Bioorganic Chemistry and Molecular Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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4
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Li CC, Liu WX, Jiang S, Liu M, Luo X, Zhang CY. Construction of Bioluminescent Sensors for Label-Free, Template-Free, Separation-Free, and Sequence-Independent Detection of both Clustered and Isolated Damage in Genomic DNA. Anal Chem 2022; 94:14716-14724. [PMID: 36223141 DOI: 10.1021/acs.analchem.2c03134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
DNA damage induced by endogenous/exogenous factors may cause various diseases, and the genomic DNA damage has become an important biomarker for clinical diagnosis and risk assessment, but it remains a great challenge to accurately quantify both clustered and isolated damage because of their random locations, large diversity, and low abundance. Herein, we demonstrate the development of bioluminescent sensors for label-free, template-free, separation-free, and sequence-independent detection of both clustered and isolated damage in genomic DNA based on the base-excision repair (BER) pathway and terminal transferase (TdT)-initiated template-free isothermal cyclic amplification. The damaged bases are cleaved by DNA glycosylase to generate a new 3'-OH terminus, and subsequently, TdT catalyzes the repeated incorporation of dTTPs into the 3'-OH terminus to produce poly-T structures which can hybridize with the signal probe to form a poly-T sequence/signal probe duplex. Under the lambda exonuclease hydrolysis, a large number of adenosine monophosphate (AMP) molecules are produced to generate a high bioluminescence signal through the cyclic interconversion of AMP-adenosine triphosphate (ATP)-AMP in the presence of luciferin and firefly luciferase. Moreover, the introduction of APE1-induced cyclic cleavage signal amplification can greatly improve the detection sensitivity. The proposed strategy can detect both clustered and isolated damage in genomic DNA with extremely high sensitivity and excellent specificity, and it can even distinguish 0.001% DNA damage in the mixture. Importantly, it can detect the cellular DNA damage with a detection limit of 0.011 ng and further extend to measure various DNA damage with the integration of appropriate DNA repair enzymes.
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Affiliation(s)
- Chen-Chen Li
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.,Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Wan-Xin Liu
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.,Zichuan Experimental Middle School, Zibo 255100, China
| | - Su Jiang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Meng Liu
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Xiliang Luo
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Chun-Yang Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
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5
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Dong JH, Xue CY, Zhong XY, Zhou YL, Zhang XX. Ultrasensitive and Single-Base Resolution Quantification of 8-Oxo-7,8-dihydroguanine in DNA by Extension and Ligation-Based qPCR. Anal Chem 2022; 94:8066-8074. [PMID: 35613360 DOI: 10.1021/acs.analchem.2c01679] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Oxidative DNA damage is tightly linked to the development of multiple age-related diseases. The prominent oxidation product is 8-oxo-7,8-dihydroguanine (OG), which has been proved to be an important epigenetic-like biomarker. Quantification of the locus-specific OG frequency includes quantitative and locating information, which is of great significance for exploring the functional roles of OG in disease induction and gene regulation. Herein, an ultrasensitive quantification of OG at single-base resolution was established using real-time fluorescence quantitative polymerase chain reaction as an amplification tool. Based on the coding property of Bsu DNA polymerase that incorporates adenine on the opposite site of OG and the selectivity of the ligase for perfectly matched sequences, the difference between OG and G on the sequence could be enlarged. Well-performed Taq DNA ligase was selected out, and as low as 46.2 zmol of target DNA with an OG site and an OG frequency of 5% could be detected. G contents on a specific site were also detectable based on the similar principle, thus the OG frequency of this locus could be accurately determined by a standard addition method. This strategy was successfully applied to the evaluation of locus-specific OG in both model DNA and genomic DNA from human cervical carcinoma cell lines under multiple oxidative stress, showing the potential for functional research and dynamic monitoring of critical OG sites.
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Affiliation(s)
- Jia-Hui Dong
- Beijing National Laboratory for Molecular Sciences (BNLMS), MOE Key Laboratory of Bioorganic Chemistry and Molecular Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Chen-Yu Xue
- Beijing National Laboratory for Molecular Sciences (BNLMS), MOE Key Laboratory of Bioorganic Chemistry and Molecular Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xin-Ying Zhong
- Beijing National Laboratory for Molecular Sciences (BNLMS), MOE Key Laboratory of Bioorganic Chemistry and Molecular Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Ying-Lin Zhou
- Beijing National Laboratory for Molecular Sciences (BNLMS), MOE Key Laboratory of Bioorganic Chemistry and Molecular Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xin-Xiang Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS), MOE Key Laboratory of Bioorganic Chemistry and Molecular Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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6
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Chen J, Fu S, Zhang C, Liu H, Su X. DNA Logic Circuits for Cancer Theranostics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2108008. [PMID: 35254723 DOI: 10.1002/smll.202108008] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 02/08/2022] [Indexed: 06/14/2023]
Abstract
Cancer diagnosis and therapeutics (theranostics) based on the tumor microenvironment (TME) and biomarkers has been an emerging approach for precision medicine. DNA nanotechnology dynamically controls the self-assembly of DNA molecules at the nanometer scale to construct intelligent DNA chemical reaction systems. The DNA logic circuit is a particularly emerging approach for computing within the DNA chemical systems. DNA logic circuits can sensitively respond to tumor-specific markers and the TME through logic operations and signal amplification, to generate detectable signals or to release anti-cancer agents. In this review, the fundamental concepts of DNA logic circuits are clarified, the basic modules in the circuit are summarized, and how this advanced nano-assembly circuit responds to tumor-related molecules, how to perform logic operations, to realize signal amplification, and selectively release drugs through discussing over 30 application examples, are demonstrated. This review shows that DNA logic circuits have powerful logic judgment and signal amplification functions in improving the specificity and sensitivity of cancer diagnosis and making cancer treatment controllable. In the future, researchers are expected to overcome the existing shortcomings of DNA logic circuits and design smarter DNA devices with better biocompatibility and stability, which will further promote the development of cancer theranostics.
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Affiliation(s)
- Jing Chen
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Shengnan Fu
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Chunyi Zhang
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Huiyu Liu
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xin Su
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
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7
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Ouyang Y, Liu Y, Deng Y, He H, Huang J, Ma C, Wang K. Recent advances in biosensor for DNA glycosylase activity detection. Talanta 2021; 239:123144. [PMID: 34923254 DOI: 10.1016/j.talanta.2021.123144] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 12/09/2021] [Accepted: 12/11/2021] [Indexed: 10/19/2022]
Abstract
Base excision repair (BER) is vital for maintaining the integrity of the genome under oxidative damage. DNA glycosylase initiates the BER pathway recognizes and excises the mismatched substrate base leading to the apurinic/apyrimidinic site generation, and simultaneously breaks the single-strand DNA. As the aberrant activity of DNA glycosylase is associated with numerous diseases, including cancer, immunodeficiency, and atherosclerosis, the detection of DNA glycosylase is significant from bench to bedside. In this review, we summarized novel DNA strategies in the past five years for DNA glycosylase activity detection, which are classified into fluorescence, colorimetric, electrochemical strategies, etc. We also highlight the current limitations and look into the future of DNA glycosylase activity monitoring.
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Affiliation(s)
- Yuzhen Ouyang
- School of Life Sciences, Central South University, Changsha, 410013, China; Clinical Medicine Eight-year Program, Xiangya School of Medicine, Central South University, Changsha, 410078, China
| | - Yifan Liu
- School of Life Sciences, Central South University, Changsha, 410013, China; Clinical Medicine Eight-year Program, Xiangya School of Medicine, Central South University, Changsha, 410078, China
| | - Yuan Deng
- School of Life Sciences, Central South University, Changsha, 410013, China
| | - Hailun He
- School of Life Sciences, Central South University, Changsha, 410013, China
| | - Jin Huang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, China.
| | - Changbei Ma
- School of Life Sciences, Central South University, Changsha, 410013, China.
| | - Kemin Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, China
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8
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Fan L, Liu W, Yang B, Zhang Y, Liu X, Wu X, Ning B, Peng Y, Bai J, Guo L. A highly sensitive method for simultaneous detection of hAAG and UDG activity based on multifunctional dsDNA probes mediated exponential rolling circle amplification. Talanta 2021; 232:122429. [PMID: 34074415 DOI: 10.1016/j.talanta.2021.122429] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/09/2021] [Accepted: 04/10/2021] [Indexed: 11/30/2022]
Abstract
DNA glycosylase is an indispensable DNA damage repair enzyme which can recognize and excise the damaged bases in the DNA base excision-repair pathway. The dysregulation of DNA glycosylase activity will give rise to the dysfunction of base excision-repair and lead to abnormalities and diseases. The simultaneous detection of multiple DNA glycosylases can help to fully understand the normal physiological functions of cells, and determine whether the cells are abnormal in pre-disease. Regrettably, the synchronous detection of functionally similar DNA glycosylases is a great challenge. Herein, we developed a multifunctional dsDNA probe mediated exponential rolling circle amplification (E-RCA) method for the simultaneously sensitive detection of human alkyladenine DNA glycosylase (hAAG) and uracil-DNA glycosylase (UDG). The multifunctional dsDNA probe contains the hypoxanthine sites and the uracil sites which can be recognized by hAAG and UDG respectively to generate apyrimidinic (AP) sites in the dsDNA probe. Then the AP sites will be recognized and cut by endonuclease Ⅳ (Endo IV) to release corresponding single-stranded primer probes. Subsequently, two padlock DNA templates are added to initiate E-RCA to generate multitudinous G-quadruplexes and/or double-stranded dumbbell lock structures, which can combine N-methyl mesoporphyrin IX (NMM) and SYBR Green Ⅰ (SGI) for the generation of respective fluorescent signals. The detection limits are obtained as low as 0.0002 U mL-1 and 0.00001 U mL-1 for hAAG and UDG, respectively. Notably, this method can realize the simultaneous detection of two DNA glycosylases without the use of specially labeled probes. Finally, this method is successfully applied to detect hAAG and UDG activities in the lysates of HeLa cells and Endo1617 cells at single-cell level, and to detect the inhibitors of DNA glycosylases.
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Affiliation(s)
- Longxing Fan
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, PR China; Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, PR China
| | - Wentao Liu
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, PR China
| | - Boning Yang
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, PR China
| | - Yingchun Zhang
- Nankai University School of Medicine, Nan Kai University, 94 Weijin Road, Tianjin, 300071, PR China; Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, PR China
| | - Xiaotao Liu
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, PR China
| | - Xinglin Wu
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, PR China; Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, PR China
| | - Baoan Ning
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, PR China
| | - Yuan Peng
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, PR China
| | - Jialei Bai
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, PR China.
| | - Liangqia Guo
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, PR China.
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Zhang H, Li F, Wang L, Shao S, Chen H, Chen X. Sensitive homogeneous fluorescent detection of DNA glycosylase by target-triggering ligation-dependent tricyclic cascade amplification. Talanta 2020; 220:121422. [PMID: 32928432 DOI: 10.1016/j.talanta.2020.121422] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 07/09/2020] [Accepted: 07/14/2020] [Indexed: 10/23/2022]
Abstract
Abnormal DNA glycosylases are concerned with the aging process as well as numerous pathologies in humans. Herein, a sensitive fluorescence method utilizing target-induced ligation-dependent tricyclic cascade amplification reaction was developed for the detecting DNA glycosylase activity. The presence of DNA glycosylase triggered the cleavage of damaged base in hairpin substrate, successively activating ligation-dependent strand displacement amplification (SDA) and exponential amplification reaction (EXPAR) for the generation of large amount of reporter probes. The resultant reporter probes bound with the signal probes to form stable dsDNA duplexes. And then the signal probes could be digested circularly in the dsDNA duplexes by T7 exonuclease, leading to the generation of an enhanced fluorescence signal. Due to the high efficiency of tricyclic cascade amplification and the low background signal deriving from the inhibition of nonspecific amplification, this method exhibited a detection limit of 0.14 U/mL and a dynamic range from 0.16 to 8.0 U/mL. Moreover, it could be applied for detecting DNA glycosylase activity in human serum with good selectivity and high sensitivity, and even quantifying other types of enzyme with 5'-PO4 residue cleavage product by rationally designing the corresponding substrate. Importantly, this method could be performed in homogenous solution without any complicated separation steps, providing a new strategy for DNA glycosylase-related biomedical research.
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Affiliation(s)
- Huige Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Fengyun Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Lili Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Shuai Shao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Hongli Chen
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China.
| | - Xingguo Chen
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
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10
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Hai X, Li Y, Zhu C, Song W, Cao J, Bi S. DNA-based label-free electrochemical biosensors: From principles to applications. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116098] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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11
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Zhang Y, Hua RN, Zhang CY. Integration of Enzymatic Labeling with Single-Molecule Detection for Sensitive Quantification of Diverse DNA Damages. Anal Chem 2020; 92:4700-4706. [PMID: 32193925 DOI: 10.1021/acs.analchem.9b04547] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
DNA damage plays an important role in the regulation of gene expression and disease processes. The accurate measurement of DNA damage is essential to the discovery of potential disease biomarkers for risk assessment, early clinical diagnosis, and therapy monitoring. However, the low abundance, random location in genomic elements, diversity, and the incapability to specifically amplify the DNA damages hinder the accurate quantification of various DNA damages within human genomes. Herein, we demonstrate the integration of enzymatic labeling with single-molecule detection for sensitive quantification of diverse DNA damages. A significant advantage of our method is that only the damaged base-containing DNA sequence can be labeled by the biotin-conjugated deoxynucleotide triphosphate (biotin-dNTP) and separated from the normal DNAs, which greatly improves the detection specificity. In addition, high sensitivity can be achieved by the terminal deoxynucleotidyl transferase (TdT)-induced polymerization of multiple Alexa Fluor 488-labeled-deoxyuridine triphosphates (AF488-dUTPs) and the introduction of single-molecule detection. This method can measure DNA damage with a detection limit as low as 1.1 × 10-16 M, and it can distinguish DNA damage at low abundance down to 1.3 × 10-4%. Importantly, it can provide information about the occurrence of DNA damage in a specific gene and ascertain the DNA damage level in different cancer cell lines, offering a new approach for studying the physiological function of various DNA damages in human diseases.
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Affiliation(s)
- Yan Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, Shandong 250014, China
| | - Ruo-Nan Hua
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, Shandong 250014, China
| | - Chun-Yang Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, Shandong 250014, China
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12
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Zhang Y, Hua RN, Zhang CY. Analysis of the Isolated and the Clustered DNA Damages by Single-Molecule Counting. Anal Chem 2019; 91:10381-10385. [PMID: 31364352 DOI: 10.1021/acs.analchem.9b02694] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
DNA damage seriously threats the genomic stability and is linked to mutagenesis, carcinogenesis, and cell death. DNA damage includes the isolated damage and the clustered damages, but few approaches are available for efficient detection of the clustered damage due to its spatial distribution. Herein, we present a single-molecule counting approach with the capability of detecting both the isolated and the clustered damages in genomic DNAs. We employed the repair enzymes to remove the DNA damage and used the terminal deoxynucleotidyl transferase (TdT) to incorporate biotinylated nucleotides and fluorescent nucleotides into the damage sites in a template-independent manner. The number of total oxidative damaged bases is quantified to be 7328-7406 in a single HeLa cell treated with 150 μM H2O2. This method in combination with special repair enzymes can detect a variety of DNA damage in different types of cells, holding great potential for early diagnosis of DNA damage-related human diseases.
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Affiliation(s)
- Yan Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Edu-cation, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals , Shandong Normal University , Jinan 250014 , China
| | - Ruo-Nan Hua
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Edu-cation, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals , Shandong Normal University , Jinan 250014 , China
| | - Chun-Yang Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Edu-cation, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals , Shandong Normal University , Jinan 250014 , China
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Zhang Y, Deng Y, Wang C, Li L, Xu L, Yu Y, Su X. Probing and regulating the activity of cellular enzymes by using DNA tetrahedron nanostructures. Chem Sci 2019; 10:5959-5966. [PMID: 31360402 PMCID: PMC6566069 DOI: 10.1039/c9sc01912j] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 05/03/2019] [Indexed: 01/14/2023] Open
Abstract
Given the essential role of apurinic/apyrimidinic endonuclease (APE1) in gene repair and cancer progression, we report a novel approach for probing and regulating cellular APE1 activity by using DNA tetrahedrons.
Given the essential role of apurinic/apyrimidinic endonuclease (APE1) in gene repair and cancer progression, we report a novel approach for probing and regulating cellular APE1 activity by using DNA tetrahedrons. The tetrahedron with an AP site-containing antenna exhibits high sensitivity and specificity to APE1. It is suitable for APE1 in vitro detection (detection limit 5 pM) and cellular fluorescence imaging without any auxiliary transfection reagents, which discriminates the APE1 expression level of cancer cells and normal cells. In contrast, the tetrahedron with an AP site on its scaffold exhibits high binding affinity to APE1 but limits enzymatic catalysis making this nanostructure an APE1 inhibitor with an IC50 of 14.8 nM. It suppresses the APE1 activity in living cells and sensitizes cancer cells to anticancer drugs. We also demonstrate that the APE1 probe and inhibitor can be switched allosterically via stand displacement, which holds potential for reversible inhibition of APE1. Our approach provides a new way for fabricating enzyme probes and regulators and new insights into enzyme–substrate interactions, and it can be expanded to regulate other nucleic acid related enzymes.
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Affiliation(s)
- Yi Zhang
- College of Life Science and Technology , Beijing University of Chemical Technology , Beijing 100029 , China .
| | - Yingnan Deng
- College of Life Science and Technology , Beijing University of Chemical Technology , Beijing 100029 , China .
| | - Congshan Wang
- College of Life Science and Technology , Beijing University of Chemical Technology , Beijing 100029 , China .
| | - Lidan Li
- College of Life Science and Technology , Beijing University of Chemical Technology , Beijing 100029 , China .
| | - Lida Xu
- College of Life Science and Technology , Beijing University of Chemical Technology , Beijing 100029 , China .
| | - Yingjie Yu
- Department of Biomedical Engineering , Tufts University , Medford , MA 02155 , USA .
| | - Xin Su
- College of Life Science and Technology , Beijing University of Chemical Technology , Beijing 100029 , China .
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Gonzalez-Hunt CP, Wadhwa M, Sanders LH. DNA damage by oxidative stress: Measurement strategies for two genomes. CURRENT OPINION IN TOXICOLOGY 2018. [DOI: 10.1016/j.cotox.2017.11.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Hu J, Liu MH, Li Y, Tang B, Zhang CY. Simultaneous sensitive detection of multiple DNA glycosylases from lung cancer cells at the single-molecule level. Chem Sci 2017; 9:712-720. [PMID: 29629140 PMCID: PMC5869805 DOI: 10.1039/c7sc04296e] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 11/06/2017] [Indexed: 01/05/2023] Open
Abstract
We demonstrate the simultaneous detection of human 8-oxoguanine DNA glycosylase 1 and human alkyladenine DNA glycosylase at the single-molecule level.
DNA glycosylases are involved in the base excision repair pathway, and all mammals express multiple DNA glycosylases to maintain genome stability. However, the simultaneous detection of multiple DNA glycosylase still remains a great challenge. Here, we develop a single-molecule detection method for the simultaneous detection of human 8-oxoguanine DNA glycosylase 1 (hOGG1) and human alkyladenine DNA glycosylase (hAAG) on the basis of DNA glycosylase-mediated cleavage of molecular beacons. We designed a Cy3-labeled molecular beacon modified with 8-oxoguanine (8-oxoG) for a hOGG1 assay and a Cy5-labeled molecular beacon modified with deoxyinosine for a hAAG assay. hOGG1 may catalyze the removal of 8-oxoG from 8-oxoG/C base pairs to generate an apurinic/apyrimidinic (AP) site, and hAAG may catalyze the removal of deoxyinosine from deoxyinosine/T base pairs to generate an AP site. With the assistance of apurinic/apyrimidinic endonuclease (APE1), the cleavage of AP sites results in the cleavage of molecular beacons, with Cy3 indicating the presence of hOGG1 and Cy5 indicating the presence of hAAG. Both of the Cy3 and Cy5 signals can be simply quantified by total internal reflection fluorescence-based single-molecule detection. This method can simultaneously detect multiple DNA glycosylases with a detection limit of 2.23 × 10–6 U μL–1 for hOGG1 and 8.69 × 10–7 U μL–1 for hAAG without the involvement of any target amplification. Moreover, this method can be used for the screening of enzyme inhibitors and the simultaneous detection of hOGG1 and hAAG from lung cancer cells, having great potential for further application in early clinical diagnosis.
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Affiliation(s)
- Juan Hu
- College of Chemistry, Chemical Engineering and Materials Science , Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong , Key Laboratory of Molecular and Nano Probes , Ministry of Education , Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals , Shandong Normal University , Jinan 250014 , China . ; ; ; Fax: +86 531 86180017 ; Tel: +86 531 86186033 ; Tel: +86 531 86180010
| | - Ming-Hao Liu
- College of Chemistry, Chemical Engineering and Materials Science , Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong , Key Laboratory of Molecular and Nano Probes , Ministry of Education , Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals , Shandong Normal University , Jinan 250014 , China . ; ; ; Fax: +86 531 86180017 ; Tel: +86 531 86186033 ; Tel: +86 531 86180010
| | - Ying Li
- School of Medicine , Health Science Center , Shenzhen University , Shenzhen 518060 , China
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science , Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong , Key Laboratory of Molecular and Nano Probes , Ministry of Education , Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals , Shandong Normal University , Jinan 250014 , China . ; ; ; Fax: +86 531 86180017 ; Tel: +86 531 86186033 ; Tel: +86 531 86180010
| | - Chun-Yang Zhang
- College of Chemistry, Chemical Engineering and Materials Science , Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong , Key Laboratory of Molecular and Nano Probes , Ministry of Education , Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals , Shandong Normal University , Jinan 250014 , China . ; ; ; Fax: +86 531 86180017 ; Tel: +86 531 86186033 ; Tel: +86 531 86180010
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