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Zheng X, Hu Z, Gao S, Li Z, Chen J, Zhang G, Kong N, Sun J, Liu W. One-pot assay using a target-driven split aptamer recognition and assembly strategy for convenient and rapid detection of gliotoxin. Food Chem 2024; 454:139738. [PMID: 38820643 DOI: 10.1016/j.foodchem.2024.139738] [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: 12/23/2023] [Revised: 05/16/2024] [Accepted: 05/17/2024] [Indexed: 06/02/2024]
Abstract
An aptamer targeting gliotoxin (GTX) was optimized to increase the binding affinity by approximately 20 times and achieve higher structural stability and targeting specificity. Molecular dynamics simulations were used to explore the molecular mechanism and key action sites underlying the recognition of GTX by the optimized aptamer. Subsequently, the optimized aptamer was split into two fragments and a convenient and rapid one-pot assay for GTX detection was successfully established using a target-driven split aptamer recognition and assembly strategy. The method exhibited a good linear range of 0.128 nM to 2 μM, a low detection limit of 0.07 nM, and excellent selectivity for GTX. Furthermore, the method had good accuracy and stability in real sample analysis. Therefore, the developed one-pot method provides a reliable, convenient, and cost-effective approach for the widespread application of GTX detection.
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Affiliation(s)
- Xin Zheng
- Department of Laboratory Medicine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Zunqi Hu
- Department of General Surgery, Changzheng Hospital, Naval Medical University, Shanghai 200003, China
| | - Shunxiang Gao
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China; National Clinical Research Center for Eye Diseases, Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai 200080, China.
| | - Zhen Li
- Department of Laboratory Medicine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Jia Chen
- Department of Laboratory Medicine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Guanyi Zhang
- Department of Laboratory Medicine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Nana Kong
- Department of Laboratory Medicine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Jianguo Sun
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Shanghai Medical College, Fudan University, Shanghai 200031, China
| | - Weiwei Liu
- Department of Laboratory Medicine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China.
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2
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Zhu J, Yin H, Wang Y, Wang L, Geng X, Deng Y. Conformational change-based fluorometric aptasensor for sensitive cadmium(II) detection in fruits and vegetables. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024. [PMID: 39143932 DOI: 10.1039/d4ay01333f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
Cadmium (Cd2+) is a highly toxic heavy metal that can accumulate in the human body through contaminated food and water, posing great health risks. In this study, a label-free fluorescent aptasensor based on SYBR Green I (SGI) for the rapid and sensitive detection of Cd2+ in food samples was designed. The aptasensor utilizes a Cd2+-specific aptamer (Cd-(21)) and its complementary strand (CSCd-(21)) to form a double-stranded DNA (dsDNA) structure in the absence of Cd2+. SGI intercalates into the dsDNA, resulting in a strong fluorescence signal. In the presence of Cd2+, the aptamer undergoes a conformational change, preventing the formation of dsDNA and leading to a decrease in fluorescence intensity. Under optimized conditions, the aptasensor exhibited a linear response to Cd2+ concentrations ranging from 0.11 to 157.37 ng mL-1, with a limit of detection (LOD) of 0.07 ng mL-1. The aptasensor demonstrated high specificity and was successfully applied to detect Cd2+ in fruits and vegetables, with satisfactory recovery rates (95-111%). The proposed aptasensor provides a promising tool for the rapid and sensitive detection of Cd2+ in food.
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Affiliation(s)
- Jiangxiong Zhu
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China.
- Yunnan Dali Research Institute of Shanghai Jiao Tong University, Yunnan 671000, China
| | - Hao Yin
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China.
- Yunnan Dali Research Institute of Shanghai Jiao Tong University, Yunnan 671000, China
| | - Yang Wang
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China.
| | - Lumei Wang
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China.
- Yunnan Dali Research Institute of Shanghai Jiao Tong University, Yunnan 671000, China
| | - Xueqing Geng
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China.
| | - Yun Deng
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China.
- Yunnan Dali Research Institute of Shanghai Jiao Tong University, Yunnan 671000, China
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3
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Zhang S, Qin Y, Yuan J, Wang Y, Yao J, Zhang M. Based on mutated aptamer-smartphone colorimetric detection of metronidazole in milk. Front Bioeng Biotechnol 2024; 12:1444846. [PMID: 39157440 PMCID: PMC11327025 DOI: 10.3389/fbioe.2024.1444846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Accepted: 07/19/2024] [Indexed: 08/20/2024] Open
Abstract
Excessive residue of metronidazole (MNZ) in food is harmful to the human body. There is an urgent demand to develop a portable tool for MNZ detection on-site. In this study, fifteen aptamers were prepared through targeted base mutation. Apt1-3 with the highest enrichment was chosen for further study. Its affinity was characterized by molecular docking simulation, AuNPs colorimetric assay, graphene oxide (GO) fluorescence assay, and exonuclease assay. Kd was determined by GO fluorescence assay (Kd: 92.60 ± 25.59 nM). Its specificity was also characterized by an exonuclease assay. A novel aptasensor was constructed by using the newly identified aptamer combined with the smartphone dark box. The principle of color change is caused by the aggregation state of AuNPs. Smartphones act as reading instruments. The detection can be completed in just a few seconds without the aid of instruments, achieving a detection limit of 0.15 nmol/mL and a range of 6.7-44.4 nmol/mL (R 2 = 0.9810). Therefore, the constructed smartphone colorimetric sensor based on mutant aptamers has important applications in food detection.
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Affiliation(s)
- Sicheng Zhang
- School of Pharmacy, Xinjiang Medical University, Urumqi, China
| | - Yadi Qin
- School of Pharmacy, Xinjiang Medical University, Urumqi, China
| | - Jie Yuan
- School of Pharmacy, Xinjiang Medical University, Urumqi, China
- School of Pharmacy, Xinjiang Second Medical College, Karamay, China
| | - Yu Wang
- School of Pharmacy, Xinjiang Medical University, Urumqi, China
| | - Jun Yao
- School of Pharmacy, Xinjiang Medical University, Urumqi, China
- Key Laboratory of Active Components and Drug Release Technology of Natural Medicines in Xinjiang, Xinjiang Medical University, Urumqi, China
| | - Minwei Zhang
- College Life Science and Technology, Xinjiang University, Urumqi, China
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Almenhali AZ, Eissa S. Aptamer-based biosensors for the detection of neonicotinoid insecticides in environmental samples: A systematic review. Talanta 2024; 275:126190. [PMID: 38703483 DOI: 10.1016/j.talanta.2024.126190] [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: 02/04/2024] [Revised: 03/29/2024] [Accepted: 04/29/2024] [Indexed: 05/06/2024]
Abstract
Neonicotinoids, sometimes abbreviated as neonics, represent a class of neuro-active insecticides with chemical similarities to nicotine. Neonicotinoids are the most widely adopted group of insecticides globally since their discovery in the late 1980s. Their physiochemical properties surpass those of previously established insecticides, contributing to their popularity in various sectors such as agriculture and wood treatment. The environmental impact of neonicotinoids, often overlooked, underscores the urgency to develop tools for their detection and understanding of their behavior. Conventional methods for pesticide detection have limitations. Chromatographic techniques are sensitive but expensive, generate waste, and require complex sample preparation. Bioassays lack specificity and accuracy, making them suitable as preliminary tests in conjunction with instrumental methods. Aptamer-based biosensor is recognized as an advantageous tool for neonicotinoids detection due to its rapid response, user-friendly nature, cost-effectiveness, and suitability for on-site detection. This comprehensive review represents the inaugural in-depth analysis of advancements in aptamer-based biosensors targeting neonicotinoids such as imidacloprid, thiamethoxam, clothianidin, acetamiprid, thiacloprid, nitenpyram, and dinotefuran. Additionally, the review offers valuable insights into the critical challenges requiring prompt attention for the successful transition from research to practical field applications.
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Affiliation(s)
- Asma Zaid Almenhali
- Department of Chemistry, Khalifa University of Science and Technology, Abu Dhabi, P.O. Box 127788, United Arab Emirates
| | - Shimaa Eissa
- Department of Chemistry, Khalifa University of Science and Technology, Abu Dhabi, P.O. Box 127788, United Arab Emirates; Center for Catalysis and Separations, Khalifa University of Science and Technology, Abu Dhabi P.O. Box 127788, United Arab Emirates.
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5
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Wei K, Ye Z, Dong W, Zhang L, Wang W, Li J, Eltzov E, Wang S, Mao X. Generating robust aptamers for food analysis by sequence-based configuration optimization. Talanta 2024; 275:126044. [PMID: 38626500 DOI: 10.1016/j.talanta.2024.126044] [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: 12/13/2023] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/18/2024]
Abstract
Advanced analytical techniques are emerging in the food industry. Aptamer-based biosensors achieve rapid and highly selective analysis, thus drawing particular attention. Aptamers are oligonucleotide probes screened via in vitro Systematic Evolution of Ligands by EXponential Enrichment (SELEX), which can bind with their specific targets by folding into three-dimensional configurations and accept various modifications to be incorporated into biosensors, showing great potential in food analysis. Unfortunately, aptamers obtained by SELEX may not possess satisfactory affinity. Post-SELEX strategies were proposed to optimize aptamers' configuration and enhance the binding affinity, with specificity confirmed. Sequence-based optimization strategies exhibit great advantages in simple operation, good generalization, low cost, etc. This review summarizes the latest study (2015-2023) on generating robust aptamers for food targets by sequence-based configuration optimization, as well as the generated aptamers and aptasensors, with an expectation to provide inspirations for developing aptamer and aptasensors with high performance for food analysis and to safeguard food quality and safety.
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Affiliation(s)
- Kaiyue Wei
- State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao, 266404, PR China; Qingdao Key Laboratory of Food Biotechnology, Qingdao, 266404, PR China; Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, 266404, PR China
| | - Ziyang Ye
- State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao, 266404, PR China; Qingdao Key Laboratory of Food Biotechnology, Qingdao, 266404, PR China; Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, 266404, PR China
| | - Wenhui Dong
- State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao, 266404, PR China; Qingdao Key Laboratory of Food Biotechnology, Qingdao, 266404, PR China; Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, 266404, PR China
| | - Ling Zhang
- State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao, 266404, PR China; Qingdao Key Laboratory of Food Biotechnology, Qingdao, 266404, PR China; Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, 266404, PR China
| | - Wenjing Wang
- State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao, 266404, PR China; Qingdao Key Laboratory of Food Biotechnology, Qingdao, 266404, PR China; Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, 266404, PR China
| | - Jiao Li
- State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao, 266404, PR China; Qingdao Key Laboratory of Food Biotechnology, Qingdao, 266404, PR China; Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, 266404, PR China
| | - Evgeni Eltzov
- Department of Postharvest Science, Institute of Postharvest and Food Sciences, The Volcani Center, Agricultural Research Organization, Bet Dagan, 50250, Israel
| | - Sai Wang
- State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao, 266404, PR China; Qingdao Key Laboratory of Food Biotechnology, Qingdao, 266404, PR China; Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, 266404, PR China.
| | - Xiangzhao Mao
- State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao, 266404, PR China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, PR China; Qingdao Key Laboratory of Food Biotechnology, Qingdao, 266404, PR China; Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, 266404, PR China
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6
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Guo X. Research progress on the detection of foodborne pathogens based on aptamer recognition. Mikrochim Acta 2024; 191:318. [PMID: 38727855 DOI: 10.1007/s00604-024-06375-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 04/20/2024] [Indexed: 05/15/2024]
Abstract
Foodborne diseases caused by bacterial contamination are a serious threat to food safety and human health. The classical plate culture method has the problems of long detection cycle, low sensitivity and specificity, and complicated operation, which cannot meet the growing demand for rapid quantitative detection of pathogenic bacteria. The frequent outbreak of foodborne diseases has put forward higher requirements for rapid and simple detection technology of foodborne pathogens. Aptamer is a kind of oligonucleotide fragment that can recognize targets with the advantages of high affinity and good specificity. The target can be range from proteins, small molecules, cells bacteria, and even viruses. Herein, the latest advances in sensitive and rapid detection of foodborne pathogens based on aptamer recognition was reviewed. Special attention has been paid to the obtained sequences of aptamers to various foodborne pathogens, the optimization of sequences, and the mechanism of aptamer recognition. Then, the research progress of biosensors for the detection of pathogenic bacteria based on aptamer recognition were summarized. Some challenges and prospects for the detection of foodborne pathogens based on aptamer recognition were prospected. In summary, with the further deepening of aptamer research and improvement of detection technology, aptamer-based recognition can meet the needs of rapid, sensitive, and accurate detection in practical applications.
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Affiliation(s)
- Xianglin Guo
- School of Food Science and Technology, Hunan Agricultural University, Changsha, 410128, Hunan, China.
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7
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Du S, Ge Y, Lu Z, Du W, Zhang Z, Zhang H. Selection and application of highly specific Salmonella typhimurium aptamers against matrix interference. Biosens Bioelectron 2024; 249:116013. [PMID: 38211466 DOI: 10.1016/j.bios.2024.116013] [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: 10/30/2023] [Revised: 01/05/2024] [Accepted: 01/07/2024] [Indexed: 01/13/2024]
Abstract
In practical applications, the structure and performance of aptamers can be influenced by the presence of sample matrices, which interferes with the specific binding between the aptamer and its target. In this work, to obtain aptamer chains resistant to matrix interference, four typical food matrices were introduced as negative selection targets and selection environments in the process of selecting aptamers for Salmonella typhimurium using the systematic evolution of ligands by exponential enrichment (SELEX) technology. As a result, some highly specific candidate aptamers for Salmonella typhimurium (BB-34, BB-37, ROU-8, ROU-9, ROU-14, ROU-24, DAN-3, NAI-12, and NAI-21) were successfully obtained. Based on the characterization results of secondary structure, affinity, and specificity of these candidate aptamers, ROU-24 selected in the pork matrix and BB-34 selected in the binding buffer were chosen to develop label-free fluorescence aptasensors for the sensitive and rapid detection of the Salmonella typhimurium and verify the performance against matrix interference. The ROU-24-based aptasensor demonstrated a larger linear range and better specificity compared to the BB-34-based aptasensor. Meanwhile, the recovery rate of the ROU-24-based aptasensor in real sample detection (ranging from 94.2% to 110.7%) was significantly higher than that of the BB-34-based aptasensor. These results illustrated that the negative selection of food matrices induced in SELEX could enhance specific binding between the aptamer and its target and the performance against matrix interference. Overall, the label-free fluorescence aptasensors were developed and successfully validated in different foodstuffs, demonstrating a theoretical and practical basis for the study of aptamers against matrix interference.
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Affiliation(s)
- Shuyuan Du
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan, 250014, PR China
| | - Yuanyuan Ge
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan, 250014, PR China
| | - Zhang Lu
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan, 250014, PR China
| | - Wenjing Du
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan, 250014, PR China
| | - Zhen Zhang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan, 250014, PR China
| | - Hongyan Zhang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan, 250014, PR China.
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8
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Hu M, Yue F, Dong J, Tao C, Bai M, Liu M, Zhai S, Chen S, Liu W, Qi G, Vrublevsky I, Sun X, Guo Y. Screening of broad-spectrum aptamer and development of electrochemical aptasensor for simultaneous detection of penicillin antibiotics in milk. Talanta 2024; 269:125508. [PMID: 38070284 DOI: 10.1016/j.talanta.2023.125508] [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: 07/24/2023] [Revised: 11/29/2023] [Accepted: 11/30/2023] [Indexed: 01/05/2024]
Abstract
Penicillin antibiotics (PENs) play an important role in killing pathogenic bacteria. However, the residues of various penicillin antibiotics in milk gradually accumulate in the human body with the increase of milk intake, which causes direct harm to the human body. Aptamers can be used as recognition element of sensors. It is great significance to use broad-spectrum aptamers for simultaneous detection of PENs. In this study, we reported the screening and identification of DNA aptamers for PENs. The aptamers were screened by graphene oxide-systematic evolution of ligands by exponential enrichment (GO-SELEX). The broad-spectrum aptamers with high affinity and specificity were successfully obtained after 13 rounds of screening. The affinity and specificity of candidate aptamers were analyzed by a GO fluorescence competition method. Further sequence analysis revealed that a truncated 47 nt aptamer (P-11-1) had a higher affinity than the original 79 nt aptamer. The truncated aptamer P-11-1 was used as a recognition element, and an electrochemical aptasensor was prepared using gold nanoparticles (AuNPs) combined with ferroferric oxide-multi walled carbon nanotube (Fe3O4-MWCNTs) complex. The results showed that the developed aptasensor achieved the simultaneous detection of PENs in milk samples across a concentration range of 2 nM-10,000 nM, achieving a limit of detection of 0.667 nM. This methodology provided a simple and sensitive new thinking for antibiotic multi-residue detection.
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Affiliation(s)
- Mengjiao Hu
- College of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Fengling Yue
- College of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Jiwei Dong
- College of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Chong Tao
- College of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Mengyuan Bai
- College of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Mengyue Liu
- College of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Shengxi Zhai
- College of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Shihao Chen
- College of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Wenzheng Liu
- College of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Guangyu Qi
- College of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Igor Vrublevsky
- Department of Information Security, Belarusian State University of Informatics and Radioelectronics, Minsk 220013, Belarus
| | - Xia Sun
- College of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China.
| | - Yemin Guo
- College of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China.
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Fan Y, Amin K, Jing W, Lyu B, Wang S, Fu H, Yu H, Yang H, Li J. A novel Recjf Exo signal amplification strategy based on bioinformatics-assisted truncated aptamer for efficient fluorescence detection of AFB1. Int J Biol Macromol 2024; 254:128061. [PMID: 37963499 DOI: 10.1016/j.ijbiomac.2023.128061] [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: 09/22/2023] [Revised: 10/26/2023] [Accepted: 11/10/2023] [Indexed: 11/16/2023]
Abstract
Aflatoxin B1 (AFB1) is a typical mycotoxin that signifacntly endangers public health and economy. In this study, we systematically studied the interaction of aptamers with AFB1 using circular dichroism, molecular dynamics, molecular docking, and fluorescence analysis. The truncated sequence aptamers were screened using molecular docking. We successfully obtained the AFB1 aptamer with higher affinity and its truncated form was enhanced by 5.2-fold compared to the initial AFB1 aptamer. In addition, for rapid detection of AFB1, we designed a fluorescent nano-adaptor sensing platform using RecJf exonuclease signal amplification strategy based on the optimal aptamer. The aptasensor showed satisfactory sensitivity towards AFB1 with a linear detection range of 1-400 ng/mL and a detection limit of 0.57 ng/mL. The aptasensor was successfully applied to the determination of AFB1 in soybean oil and corn oil with recoveries of 91.02 %-106.59 % and 87.39 %-110.61 %, respectively. The successful application of the AFB1 aptasensor, developed through bioinformatics truncation of the aptamer, provides a novel approach to creating a cost-effective, eco-friendly, and rapid aptamer sensing platform.
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Affiliation(s)
- Yiting Fan
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China; Division of Soybean Processing, Soybean Research & Development Center, Chinese Agricultural Research System, Changchun 130118, China
| | - Khalid Amin
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China; Division of Soybean Processing, Soybean Research & Development Center, Chinese Agricultural Research System, Changchun 130118, China
| | - Wendan Jing
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China; Division of Soybean Processing, Soybean Research & Development Center, Chinese Agricultural Research System, Changchun 130118, China.
| | - Bo Lyu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China; Division of Soybean Processing, Soybean Research & Development Center, Chinese Agricultural Research System, Changchun 130118, China
| | - Sainan Wang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China; Division of Soybean Processing, Soybean Research & Development Center, Chinese Agricultural Research System, Changchun 130118, China
| | - Hongling Fu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China; Division of Soybean Processing, Soybean Research & Development Center, Chinese Agricultural Research System, Changchun 130118, China
| | - Hansong Yu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China; Division of Soybean Processing, Soybean Research & Development Center, Chinese Agricultural Research System, Changchun 130118, China.
| | - Huanhuan Yang
- College of Food Science, Heilongjiang Bayi Agricultural University, Daqing 163000, China; College of Life Science Chang Chun Normal University, Changchun 130032, China.
| | - Jiaxin Li
- Division of Soybean Processing, Soybean Research & Development Center, Chinese Agricultural Research System, Changchun 130118, China; Universidade de Vigo, Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Sciences, 32004 Ourense, Spain.
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10
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Wang P, Ding L, Zhang Y, Jiang X. A Novel Aptamer Biosensor Based on a Localized Surface Plasmon Resonance Sensing Chip for High-Sensitivity and Rapid Enrofloxacin Detection. BIOSENSORS 2023; 13:1027. [PMID: 38131787 PMCID: PMC10741520 DOI: 10.3390/bios13121027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 12/05/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023]
Abstract
Enrofloxacin, a fluoroquinolone widely used in animal husbandry, presents environmental and human health hazards due to its stability and incomplete hydrolysis leading to residue accumulation. To address this concern, a highly sensitive aptamer biosensor utilizing a localized surface plasmon resonance (LSPR) sensing chip and microfluidic technology was developed for rapid enrofloxacin residue detection. AuNPs were prepared by the seed method and the AuNPs-Apt complexes were immobilized on the chip by the sulfhydryl groups modified on the end of the aptamer. The properties and morphologies of the sensing chip and AuNPs-Apt complexes were characterized by Fourier transform infrared spectroscopy (FTIR), UV-Vis spectrophotometer, and scanning electron microscope (SEM), respectively. The sensing chip was able to detect enrofloxacin in the range of 0.01-100 ng/mL with good linearity, and the relationship between the response of the sensing chip and the concentration was Δλ (nm) = 1.288log ConENR (ng/mL) + 5.245 (R2 = 0.99), with the limit of detection being 0.001 ng/mL. The anti-interference, repeatability, and selectivity of this sensing chip were studied in detail. Compared with other sensors, this novel aptamer biosensor based on AuNPs-Apt complexes is expected to achieve simple, stable, and economical application in the field of enrofloxacin detection.
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Affiliation(s)
- Pan Wang
- National Engineering Research Center of Fiber Optic Sensing Technology and Networks, Wuhan University of Technology, Wuhan 430070, China; (P.W.); (Y.Z.)
| | - Liyun Ding
- National Engineering Research Center of Fiber Optic Sensing Technology and Networks, Wuhan University of Technology, Wuhan 430070, China; (P.W.); (Y.Z.)
- School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China;
| | - Yumei Zhang
- National Engineering Research Center of Fiber Optic Sensing Technology and Networks, Wuhan University of Technology, Wuhan 430070, China; (P.W.); (Y.Z.)
| | - Xingdong Jiang
- School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China;
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11
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Ji C, Wei J, Zhang L, Hou X, Tan J, Yuan Q, Tan W. Aptamer-Protein Interactions: From Regulation to Biomolecular Detection. Chem Rev 2023; 123:12471-12506. [PMID: 37931070 DOI: 10.1021/acs.chemrev.3c00377] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
Serving as the basis of cell life, interactions between nucleic acids and proteins play essential roles in fundamental cellular processes. Aptamers are unique single-stranded oligonucleotides generated by in vitro evolution methods, possessing the ability to interact with proteins specifically. Altering the structure of aptamers will largely modulate their interactions with proteins and further affect related cellular behaviors. Recently, with the in-depth research of aptamer-protein interactions, the analytical assays based on their interactions have been widely developed and become a powerful tool for biomolecular detection. There are some insightful reviews on aptamers applied in protein detection, while few systematic discussions are from the perspective of regulating aptamer-protein interactions. Herein, we comprehensively introduce the methods for regulating aptamer-protein interactions and elaborate on the detection techniques for analyzing aptamer-protein interactions. Additionally, this review provides a broad summary of analytical assays based on the regulation of aptamer-protein interactions for detecting biomolecules. Finally, we present our perspectives regarding the opportunities and challenges of analytical assays for biological analysis, aiming to provide guidance for disease mechanism research and drug discovery.
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Affiliation(s)
- Cailing Ji
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Junyuan Wei
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Lei Zhang
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Xinru Hou
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Jie Tan
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Quan Yuan
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Weihong Tan
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China
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12
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Zhu Z, Yang Z, Zhu C, Hu Z, Jiang Z, Gong J, Yuan Y, Chen X, Jin Y, Yin Y. Development of a DNA aptamer targeting IDO1 with anti-tumor effects. iScience 2023; 26:107367. [PMID: 37520707 PMCID: PMC10374466 DOI: 10.1016/j.isci.2023.107367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 04/29/2023] [Accepted: 07/10/2023] [Indexed: 08/01/2023] Open
Abstract
Immune checkpoint blockade has become an effective approach to reverse the immune tolerance of tumor cells. Indoleamine 2,3-dioxygenase 1 (IDO1) is frequently upregulated in many types of cancers and contributes to the establishment of an immunosuppressive cancer microenvironment, which has been thought to be a potential target for cancer therapy. However, the development of IDO1 inhibitors for clinical application is still limited. Here, we isolated a DNA aptamer with a strong affinity and inhibitory activity against IDO1, designated as IDO-APT. By conjugating with nanoparticles, in situ injection of IDO-APT to CT26 tumor-bearing mice significantly suppresses the activity of regulatory T cells and promotes the function of CD8+ T cells, leading to tumor suppression and prolonged survival. Therefore, this functional IDO1-specific aptamer with potent anti-tumor effects may serve as a potential therapeutic strategy in cancer immunotherapy. Our data provide an alternative way to target IDO1 in addition to small molecule inhibitors.
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Affiliation(s)
- Zhenyu Zhu
- Institute of Systems Biomedicine, Department of Pathology, Beijing Key Laboratory of Tumor Systems Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Zeliang Yang
- Institute of Systems Biomedicine, Department of Pathology, Beijing Key Laboratory of Tumor Systems Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Chuanda Zhu
- Institute of Systems Biomedicine, Department of Pathology, Beijing Key Laboratory of Tumor Systems Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Zixi Hu
- Institute of Systems Biomedicine, Department of Pathology, Beijing Key Laboratory of Tumor Systems Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Zhongyu Jiang
- Institute of Systems Biomedicine, Department of Pathology, Beijing Key Laboratory of Tumor Systems Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Jingjing Gong
- Institute of Systems Biomedicine, Department of Pathology, Beijing Key Laboratory of Tumor Systems Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Yuyao Yuan
- Institute of Systems Biomedicine, Department of Pathology, Beijing Key Laboratory of Tumor Systems Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Xi Chen
- Institute of Systems Biomedicine, Department of Pathology, Beijing Key Laboratory of Tumor Systems Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Yan Jin
- Institute of Systems Biomedicine, Department of Pathology, Beijing Key Laboratory of Tumor Systems Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Yuxin Yin
- Institute of Systems Biomedicine, Department of Pathology, Beijing Key Laboratory of Tumor Systems Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
- Peking-Tsinghua Center for Life Sciences, Peking University Health Science Center, Beijing, China
- Institute of Precision Medicine, Peking University Shenzhen Hospital, Shenzhen 518036, China
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13
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Kong AHY, Wu AJ, Ho OKY, Leung MMK, Huang AS, Yu Y, Zhang G, Lyu A, Li M, Cheung KH. Exploring the Potential of Aptamers in Targeting Neuroinflammation and Neurodegenerative Disorders: Opportunities and Challenges. Int J Mol Sci 2023; 24:11780. [PMID: 37511539 PMCID: PMC10380291 DOI: 10.3390/ijms241411780] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/18/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023] Open
Abstract
Neuroinflammation is the precursor for several neurodegenerative diseases (NDDs), such as Alzheimer's disease (AD), Parkinson's disease (PD), and multiple sclerosis (MS). Targeting neuroinflammation has emerged as a promising strategy to address a wide range of CNS pathologies. These NDDs still present significant challenges in terms of limited and ineffective diagnosis and treatment options, driving the need to explore innovative and novel therapeutic alternatives. Aptamers are single-stranded nucleic acids that offer the potential for addressing these challenges through diagnostic and therapeutic applications. In this review, we summarize diagnostic and therapeutic aptamers for inflammatory biomolecules, as well as the inflammatory cells in NDDs. We also discussed the potential of short nucleotides for Aptamer-Based Targeted Brain Delivery through their unique features and modifications, as well as their ability to penetrate the blood-brain barrier. Moreover, the unprecedented opportunities and substantial challenges of using aptamers as therapeutic agents, such as drug efficacy, safety considerations, and pharmacokinetics, are also discussed. Taken together, this review assesses the potential of aptamers as a pioneering approach for target delivery to the CNS and the treatment of neuroinflammation and NDDs.
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Affiliation(s)
- Anna Hau-Yee Kong
- Teaching and Research Division, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
| | - Aston Jiaxi Wu
- Teaching and Research Division, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
| | - Olivia Ka-Yi Ho
- Teaching and Research Division, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
| | - Maggie Ming-Ki Leung
- Teaching and Research Division, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
| | - Alexis Shiying Huang
- Teaching and Research Division, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
| | - Yuanyuan Yu
- Law Sau Fai Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
- Guangdong-Hong Kong-Macao Greater Bay Area International Research Platform for Aptamer-Based Translational Medicine and Drug Discovery, Hong Kong SAR, China
| | - Ge Zhang
- Law Sau Fai Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
- Guangdong-Hong Kong-Macao Greater Bay Area International Research Platform for Aptamer-Based Translational Medicine and Drug Discovery, Hong Kong SAR, China
| | - Aiping Lyu
- Law Sau Fai Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
- Guangdong-Hong Kong-Macao Greater Bay Area International Research Platform for Aptamer-Based Translational Medicine and Drug Discovery, Hong Kong SAR, China
| | - Min Li
- Teaching and Research Division, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
| | - King-Ho Cheung
- Teaching and Research Division, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
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14
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Li Y, Gao X, Fang Y, Cui B, Shen Y. Nanomaterials-driven innovative electrochemiluminescence aptasensors in reporting food pollutants. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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15
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Han J, Ma P, Khan IM, Zhang Y, Wang Z. Study of binding mechanism of aptamer to kanamycin and the development of fluorescent aptasensor in milk detection. Talanta 2023; 260:124530. [PMID: 37116356 DOI: 10.1016/j.talanta.2023.124530] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 03/28/2023] [Accepted: 04/04/2023] [Indexed: 04/30/2023]
Abstract
Aptasensors being versatile sensing platforms presented higher sensitivity toward target detection. However, lacking theoretical basis of recognition between most targets and their corresponding aptamers has impeded their applications. Herein, we conducted a study to explore the binding mechanism of aptamer to kanamycin (Kana) and developed rapid fluorescent aptasensing methods. Based on the fluorescence polarization results, base mutations were performed at different sites of the aptamer. The key binding nucleotides of Kana was identified as T7, T8, C13 and A15 by using isothermal titration calorimetry (ITC). The Kmut3 (2.18 μM) with lower dissociation constants (Kd), one-third of the native aptamer (6.91 μM), was also obtained. In addition, the lower K+ concentration and temperature were found to be conducive to Kana binding. Circular dichroism (CD) results revealed that the binding of Kana can trigger the change of base stacking force and helix force. On the aforementioned basis, a fluorescent sensor was designed with the native aptamer and Kmut3 as recognition elements. The comparison results proved that the Kmut3 presented a 3 times lower limit of detection of 59 nM compared to the native aptamer (148 nM). Notably, this developed aptasensor can be finished in 45 min and was convenient to operate.
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Affiliation(s)
- Jing Han
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Pengfei Ma
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China; National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, China.
| | - Imran Mahmood Khan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China; National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, China
| | - Yin Zhang
- Key Laboratory of Meat Processing of Sichuan, Chengdu University, Chengdu, 610106, China
| | - Zhouping Wang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China; National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, 214122, China; School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212004, China.
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16
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A DNA tweezers fluorescence aptasensor based on split aptamer -assisted magnetic nanoparticles for the detection of enrofloxacin in food. Food Control 2023. [DOI: 10.1016/j.foodcont.2022.109437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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Shang X, Yan Y, Li J, Zhou X, Xiang X, Huang R, Li X, Ma C, Nie X. A turn-on fluorescent strategy for alkaline phosphatase detection based on enzyme-assisted signal amplification. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 286:121939. [PMID: 36219964 DOI: 10.1016/j.saa.2022.121939] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 09/09/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
As a representative biochemical indicator, alkaline phosphatase (ALP) is of great importance in indicating and diagnosing clinical diseases. Herein, we developed a signal-on fluorescence sensing method for sensitive ALP activity detection based on the enzyme-assisted target recycling (EATR) technique. In this method, a two-step signal amplification process is designed. In the presence of ALP, the 3' phosphate group of an ss-DNA is removed explicitly by ALP, thus releasing free 3'-OH. Terminal deoxynucleotidyl transferase (TdT) can subsequently extend this substrate to generate poly(A) tails, converting the trace-level ALP information into multiple sequences and achieving the first-time amplification. A poly(T) Taqman probe labeled with FAM and BHQ1 provides the second one under the assistance of T7 exonuclease (T7 Exo) through alternate hybridization and degradation of ds-DNA regions. The previously quenched fluorescence is recovered due to the departure of FAM/BHQ1 during the cleavage of T7 Exo. Thus, taking advantage of template-free TdT-mediated polymerization and T7 Exo-based EATR, this strategy shows a sensitive LOD at 0.0074 U/L (S/N = 3) and a linear range of 0.01-8 U/L between ALP concentration and fluorescence intensity. To further verify the specificity and accuracy in practical application, we challenged it in a set of co-existing interference and biological environments and have gained satisfying results. The proposed method successfully quantified the ALP levels in clinical human serum samples, suggesting its applicability in practical application. Moreover, we have used this method to investigate the inhibition effects of Na3VO4. Above all, the proposed assay is sensitive, facile, and cost-effective for ALP determining, holding a promising perspective and excellent potential in clinical diagnosis and drug screening.
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Affiliation(s)
- Xueling Shang
- Department of Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Ying Yan
- School of Life Sciences, Central South University, Changsha 410013, China
| | - Jian Li
- Department of Blood Transfusion, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Xi Zhou
- School of Life Sciences, Central South University, Changsha 410013, China
| | - Xinying Xiang
- School of Life Sciences, Central South University, Changsha 410013, China
| | - Rong Huang
- Department of Blood Transfusion, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Xisheng Li
- Department of Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Changbei Ma
- School of Life Sciences, Central South University, Changsha 410013, China.
| | - Xinmin Nie
- Department of Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha 410013, China; Hunan Engineering Technology Research Center of Optoelectronic Health Detection, Changsha 410013, China.
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18
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Ma P, Guo H, Ye H, Zhang Y, Wang Z. Structural insights into the AFB 1 aptamer coupled with a rationally designed CRISPR/Cas12a-Exo III aptasensor for AFB 1 detection. Int J Biol Macromol 2023; 225:1164-1171. [PMID: 36414074 DOI: 10.1016/j.ijbiomac.2022.11.177] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 11/14/2022] [Accepted: 11/17/2022] [Indexed: 11/21/2022]
Abstract
Aflatoxin B1 (AFB1) is a typical food contaminant. A truncated DNA aptamer of AFB1 was reported by our team in previous work. However, the recognition mechanism between aptamer and AFB1 was lacking, which was crucial for the design of related aptasensor. Herein, the binding of aptamer to AFB1 was systematically studied and found that it was an exothermic process and the conformation of aptamer changed during the recognition process. Loop bases in the secondary structure of aptamer formed a special binding pocket to recognize AFB1. Van der Waals and electrostatic interaction were the main driving forces. By blocking the stem bases guided by the structural investigation, a rationally designed CRISPR/Cas12a-Exo III aptasensor for AFB1 detection was constructed, and the sensitivity was improved by target recycling. Under optimal conditions, the linear detection range for AFB1 was 0.01-20 ng/mL, and AFB1 was accurately determined in corn and wheat samples. This work laid a theoretical foundation for the design of AFB1 aptasensor, and the developed detection model came up with new ideas for the development of CRISPR/Cas12a-based aptasensor.
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Affiliation(s)
- Pengfei Ma
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Hualin Guo
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Hua Ye
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang 212004, China
| | - Yin Zhang
- Key Laboratory of Meat Processing of Sichuan, Chengdu University, Chengdu 610106, China
| | - Zhouping Wang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China; School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang 212004, China.
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19
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Dou X, Xu S, Jiang Y, Ding Z, Xie J. Aptamers-functionalized nanoscale MOFs for saxitoxin and tetrodotoxin sensing in sea foods through FRET. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 284:121827. [PMID: 36081191 DOI: 10.1016/j.saa.2022.121827] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/24/2022] [Accepted: 08/30/2022] [Indexed: 06/15/2023]
Abstract
Saxitoxin (STX) and tetrodotoxin (TTX) are widely distributed and extremely harmful marine toxins, it is certainly worth to spend effort to develop facile methods to detect them in sea food for human safety. In this work, two nano-sensors were developed by combining with two zirconium fluorescence Nanoscale metal-organic frameworks (NMOFs) with two emissions and TAMRA-labelled aptamers for STX and TTX sensing, respectively. The recognition of STX and TTX by these nano-sensors could change the structure of aptamer, which caused the blue or green emissions from NMOFs (energy donor) decreased while red emission from TAMRA-labelled aptamers (energy acceptor) increased owing to fluorescence resonance energy transfer (FRET) effect. Based on this strategy, NMOFs-Aptasensor 1 and NMOFs-Aptasensor 2 were developed for the ratiometric detection, with detection limits of 1.17 nM and 3.07 nM for STX and TTX, respectively. Moreover, NMOFs-Aptasensors displayed significant stability, pH-independence, selectivity and NMOFs-Aptasensors were successfully applied in shellfish sample for toxin sensing.
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Affiliation(s)
- Xilin Dou
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Shihan Xu
- Department of Chemistry, University of Washington, Seattle, WA 98195, USA
| | - Yifei Jiang
- Department of Chemistry, University of Washington, Seattle, WA 98195, USA
| | - Zhaoyang Ding
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
| | - Jing Xie
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
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20
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Liu Z, Tong Z, Wu Y, Liu B, Feng S, Mu X, Wang J, Du B, Xu J, Liu S. A New Method for Abrin Detection Based on the Interaction between Target Molecules and Fluorescently Labeled Aptamers on Magnetic Microspheres. MATERIALS (BASEL, SWITZERLAND) 2022; 15:6977. [PMID: 36234322 PMCID: PMC9573059 DOI: 10.3390/ma15196977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 09/30/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
A quantitative structure-activity relationship (QSAR) model for the structure and affinity of abrin aptamers was established. A higher affinity abrin aptamer based on the established QSAR model was screened by site-directed mutagenesis. The fluorescence quenching effect between magnetic microspheres and fluorescent molecules was studied for the first time. A new method for abrin detection based on the interaction between target molecules and fluorescently labeled aptamers on magnetic microspheres was developed, with the detection limit of 5 ng mL-1. This method can overcome the influence of complex environmental interferents in abrin detection and can meet the analysis requirements for simulated samples such as water, soil, and food.
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21
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FeMOF-based nanostructured platforms for T-2 toxin detection in beer by a “fence-type” aptasensing principle. Anal Bioanal Chem 2022; 414:7999-8008. [DOI: 10.1007/s00216-022-04330-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/30/2022] [Accepted: 09/07/2022] [Indexed: 11/01/2022]
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22
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Liu J, Li T, Qin H, Li L, Yan M, Zhu C, Qu F, Abd El-Aty AM. Self-assembly and label-free fluorescent aptasensor based on deoxyribonucleic acid intercalated dyes for detecting lactoferrin in milk powder. Front Nutr 2022; 9:992188. [PMID: 36185658 PMCID: PMC9521185 DOI: 10.3389/fnut.2022.992188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
Lactoferrin (Lf), an iron-binding glycoprotein, regulates the immune system. It has broad-spectrum antimicrobial activity and is critical for child physical growth and development. As a common additive in the dairy industry, it is crucial to quantify LF content. This study established a self-assembly and universal fluorescence aptasensor for detecting LF in milk powder based on structure-selective dyes of PicoGreen intercalated in the label-free aptamer. Herein, the aptamer functions as both a specific recognition element against targets and a fluorescent signal reporter integrated with structure-selective dyes. First, the aptamer folds into a three-dimensional spatial structure based on complementary base pairings and intermolecular weak non-covalent interactions. Then, the dye is intercalated into the minor groove structures of the aptamer and triggers its potential fluorescent property. When the target exists, the aptamer binds to it preferentially, and its space structure unfolds. This causes the freeing of the subsequent dye and decreases the corresponding fluorescence. Hence, the reflected fluorescence signals could directly determine the target concentrations. Under the optimum conditions, a good linear relationship (R2, 0.980) was obtained in the Lf range from 20 to 500 nM with a detection limit of 3 nM (2.4 mg/kg) and good specificity, as well as a reliable recovery of 95.8–105.1% in milk powder. In addition, the universality was also confirmed with a good performance by quickly changing the aptamers against other targets (chlorpyrifos, acetamiprid, bovine thyroglobulin, and human transferrin) or utilizing another fluorescence dye. Therefore, this self-assembly aptasensor provides a universal and concise strategy for effective detection.
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Affiliation(s)
- Jiahui Liu
- Institute of Quality Standard and Testing Technology for Agro-products, Shandong Academy of Agricultural Sciences, Jinan, China
- Shandong Provincial Key Laboratory Test Technology on Food Quality and Safety, Jinan, China
- College of Life Sciences and Food Engineering, Hebei University of Engineering, Handan, China
| | - Tengfei Li
- College of Life Sciences and Food Engineering, Hebei University of Engineering, Handan, China
| | - Hongwei Qin
- Institute of Quality Standard and Testing Technology for Agro-products, Shandong Academy of Agricultural Sciences, Jinan, China
- Shandong Provincial Key Laboratory Test Technology on Food Quality and Safety, Jinan, China
| | - Linsen Li
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Sciences, Beijing Institute of Technology, Beijing, China
| | - Mengmeng Yan
- Institute of Quality Standard and Testing Technology for Agro-products, Shandong Academy of Agricultural Sciences, Jinan, China
- Shandong Provincial Key Laboratory Test Technology on Food Quality and Safety, Jinan, China
- *Correspondence: Mengmeng Yan,
| | - Chao Zhu
- Institute of Quality Standard and Testing Technology for Agro-products, Shandong Academy of Agricultural Sciences, Jinan, China
- Shandong Provincial Key Laboratory Test Technology on Food Quality and Safety, Jinan, China
- Chao Zhu,
| | - Feng Qu
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Sciences, Beijing Institute of Technology, Beijing, China
| | - A. M. Abd El-Aty
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
- Department of Medical Pharmacology, Medical Faculty, Ataturk University, Erzurum, Turkey
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Chen X, Yang L, Tang J, Wen X, Zheng X, Chen L, Li J, Xie Y, Le T. An AuNPs-Based Fluorescent Sensor with Truncated Aptamer for Detection of Sulfaquinoxaline in Water. BIOSENSORS 2022; 12:bios12070513. [PMID: 35884316 PMCID: PMC9312917 DOI: 10.3390/bios12070513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/07/2022] [Accepted: 07/09/2022] [Indexed: 11/28/2022]
Abstract
Herein, we developed a novel truncation technique for aptamer sequences to fabricate highly sensitive aptasensors based on molecular docking and molecular dynamics simulations. The binding mechanism and energy composition of the aptamer/sulfaquinoxaline (SQX) complexes were investigated. We successfully obtained a new SQX-specific aptamer (SBA28-1: CCCTAGGGG) with high affinity (Kd = 27.36 nM) and high specificity determined using graphene oxide. This aptamer has a unique stem-loop structure that can bind to SQX. Then, we fabricated a fluorescence aptasensor based on SBA28-1, gold nanoparticles (AuNPs), and rhodamine B (RhoB) that presented a good linear range of 1.25–160 ng/mL and a limit of detection of 1.04 ng/mL. When used to analyze water samples, the aptasensor presented acceptable recovery rates of 93.1–100.1% and coefficients of variation (CVs) of 2.2–10.2%. In conclusion, the fluorescence aptasensor can accurately and sensitively detect SQX in water samples and has good application prospects.
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Affiliation(s)
- Xingyue Chen
- College of Life Science, Chongqing Normal University, Chongqing 401331, China; (X.C.); (L.Y.); (J.T.); (X.W.); (X.Z.); (L.C.); (J.L.)
| | - Lulan Yang
- College of Life Science, Chongqing Normal University, Chongqing 401331, China; (X.C.); (L.Y.); (J.T.); (X.W.); (X.Z.); (L.C.); (J.L.)
| | - Jiaming Tang
- College of Life Science, Chongqing Normal University, Chongqing 401331, China; (X.C.); (L.Y.); (J.T.); (X.W.); (X.Z.); (L.C.); (J.L.)
| | - Xu Wen
- College of Life Science, Chongqing Normal University, Chongqing 401331, China; (X.C.); (L.Y.); (J.T.); (X.W.); (X.Z.); (L.C.); (J.L.)
| | - Xiaoling Zheng
- College of Life Science, Chongqing Normal University, Chongqing 401331, China; (X.C.); (L.Y.); (J.T.); (X.W.); (X.Z.); (L.C.); (J.L.)
| | - Lingling Chen
- College of Life Science, Chongqing Normal University, Chongqing 401331, China; (X.C.); (L.Y.); (J.T.); (X.W.); (X.Z.); (L.C.); (J.L.)
| | - Jiaqi Li
- College of Life Science, Chongqing Normal University, Chongqing 401331, China; (X.C.); (L.Y.); (J.T.); (X.W.); (X.Z.); (L.C.); (J.L.)
| | - Yong Xie
- Bioassay 3D Reconstruction Laboratory, Chongqing College of Electronic Engineering, Chongqing 401331, China
- Correspondence: (Y.X.); (T.L.)
| | - Tao Le
- College of Life Science, Chongqing Normal University, Chongqing 401331, China; (X.C.); (L.Y.); (J.T.); (X.W.); (X.Z.); (L.C.); (J.L.)
- Correspondence: (Y.X.); (T.L.)
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Liu M, Yue F, Kong Q, Liu Z, Guo Y, Sun X. Aptamers against Pathogenic Bacteria: Selection Strategies and Apta-assay/Aptasensor Application for Food Safety. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:5477-5498. [PMID: 35471004 DOI: 10.1021/acs.jafc.2c01547] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Pathogenic bacteria are primarily kinds of detrimental agents that cause mankind illness via contaminated food with traits of multiple types, universality, and low content. In view of the detection demands for rapidity, aptamer recognition factors emerged as a substitution for antibodies, which are short single strands of nucleic acid selected via in vitro. They display certain superiorities over antibodies, such as preferable stability, liable modification, and cost-efficiency. Taking advantage of the situation, numerous aptamers against pathogenic bacteria have been successfully selected and applied, yet there are still restrictions on commercial availability. In this review, the strategies/approaches to key sections in pathogen aptamers SELEX and post-SELEX are summarized and sorted out. Recently, optical, electrochemical, and piezoelectric aptamer-based assays or sensors dedicated to pathogen detection have been critically reviewed. Ultimately, the existing challenges and future trends in this field are proposed to further promote development prospects.
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Affiliation(s)
- Mengyue Liu
- School of Agricultural Engineering and Food Science, Shandong University of Technology, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
| | - Fengling Yue
- School of Agricultural Engineering and Food Science, Shandong University of Technology, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
| | - Qianqian Kong
- School of Agricultural Engineering and Food Science, Shandong University of Technology, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
| | - Zhanli Liu
- School of Agricultural Engineering and Food Science, Shandong University of Technology, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
| | - Yemin Guo
- School of Agricultural Engineering and Food Science, Shandong University of Technology, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
| | - Xia Sun
- School of Agricultural Engineering and Food Science, Shandong University of Technology, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, 266 Xincun Xilu, Zibo, Shandong 255049, People's Republic of China
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