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Hu B, Ouyang SQ, Zhu YP, Lu XL, Ning Z, Jiao BH, Wang LH, Yu HB, Liu XY. Brevetoxin Aptamer Selection and Biolayer Interferometry Biosensor Application. Toxins (Basel) 2024; 16:411. [PMID: 39453187 PMCID: PMC11510897 DOI: 10.3390/toxins16100411] [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: 08/26/2024] [Revised: 09/17/2024] [Accepted: 09/18/2024] [Indexed: 10/26/2024] Open
Abstract
Brevetoxins (PbTxs) are very potent marine neurotoxins that can cause an illness clinically described as neurologic shellfish poisoning (NSP). These toxins are cyclic polyether in chemistry and have increased their geographical distribution in the past 2 decades. However, the ethical problems as well as technical difficulties associated with currently employed analysis methods for marine toxins have spurred the quest for suitable alternatives to be applied in a regulatory monitoring regime. In this work, we reported the first instance of concurrent aptamer selection of Brevetoxin-1 (PbTx-1) and Brevetoxin-2 (PbTx-2) and constructed a biolayer interferometry (BLI) biosensor utilizing PbTx-1 aptamer as a specific recognition element. Through an in vitro selection process, we have, for the first time, successfully selected DNA aptamers with high affinity and specificity to PbTx-1 and PbTx-2 from a vast pool of random sequences. Among the selected aptamers, aptamer A5 exhibited the strongest binding affinity to PbTx-1, with an equilibrium dissociation constant (KD) of 2.56 μM. Subsequently, we optimized aptamer A5 by truncation to obtain the core sequence (A5-S3). Further refinement was achieved through mutations based on the predictions of a QGRS mapper, resulting in aptamer A5-S3G, which showed a significant increase in the KD value by approximately 100-fold. Utilizing aptamer A5-S3G, we fabricated a label-free, real-time optical BLI aptasensor for the detection of PbTx-1. This aptasensor displayed a broad detection range from 100 nM to 4000 nM PbTx-1, with a linear range between 100 nM and 2000 nM, and a limit of detection (LOD) as low as 4.5 nM. Importantly, the aptasensor showed no cross-reactivity to PbTx-2 or other marine toxins, indicating a high level of specificity for PbTx-1. Moreover, the aptasensor exhibited excellent reproducibility and stability when applied for the detection of PbTx-1 in spiked shellfish samples. We strongly believe that this innovative aptasensor offers a promising alternative to traditional immunological methods for the specific and reliable detection of PbTx-1.
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Affiliation(s)
- Bo Hu
- Naval Medical Center of PLA, Naval Medical University, Shanghai 200433, China; (B.H.); (Z.N.)
| | - Sheng-Qun Ouyang
- College of Basic Medical Sciences, Naval Medical University, Shanghai 200433, China; (S.-Q.O.); (Y.-P.Z.); (X.-L.L.); (B.-H.J.); (L.-H.W.)
| | - Yu-Ping Zhu
- College of Basic Medical Sciences, Naval Medical University, Shanghai 200433, China; (S.-Q.O.); (Y.-P.Z.); (X.-L.L.); (B.-H.J.); (L.-H.W.)
| | - Xiao-Ling Lu
- College of Basic Medical Sciences, Naval Medical University, Shanghai 200433, China; (S.-Q.O.); (Y.-P.Z.); (X.-L.L.); (B.-H.J.); (L.-H.W.)
| | - Zhe Ning
- Naval Medical Center of PLA, Naval Medical University, Shanghai 200433, China; (B.H.); (Z.N.)
| | - Bing-Hua Jiao
- College of Basic Medical Sciences, Naval Medical University, Shanghai 200433, China; (S.-Q.O.); (Y.-P.Z.); (X.-L.L.); (B.-H.J.); (L.-H.W.)
| | - Liang-Hua Wang
- College of Basic Medical Sciences, Naval Medical University, Shanghai 200433, China; (S.-Q.O.); (Y.-P.Z.); (X.-L.L.); (B.-H.J.); (L.-H.W.)
| | - Hao-Bing Yu
- Naval Medical Center of PLA, Naval Medical University, Shanghai 200433, China; (B.H.); (Z.N.)
| | - Xiao-Yu Liu
- Naval Medical Center of PLA, Naval Medical University, Shanghai 200433, China; (B.H.); (Z.N.)
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Zhu X, Zhao Y, Wu L, Gao X, Huang H, Han Y, Zhu T. Advances in Biosensors for the Rapid Detection of Marine Biotoxins: Current Status and Future Perspectives. BIOSENSORS 2024; 14:203. [PMID: 38667196 PMCID: PMC11048312 DOI: 10.3390/bios14040203] [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: 03/23/2024] [Revised: 04/15/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024]
Abstract
Marine biotoxins (MBs), harmful metabolites of marine organisms, pose a significant threat to marine ecosystems and human health due to their diverse composition and widespread occurrence. Consequently, rapid and efficient detection technology is crucial for maintaining marine ecosystem and human health. In recent years, rapid detection technology has garnered considerable attention for its pivotal role in identifying MBs, with advancements in sensitivity, specificity, and accuracy. These technologies offer attributes such as speed, high throughput, and automation, thereby meeting detection requirements across various scenarios. This review provides an overview of the classification and risks associated with MBs. It briefly outlines the current research status of marine biotoxin biosensors and introduces the fundamental principles, advantages, and limitations of optical, electrochemical, and piezoelectric biosensors. Additionally, the review explores the current applications in the detection of MBs and presents forward-looking perspectives on their development, which aims to be a comprehensive resource for the design and implementation of tailored biosensors for effective MB detection.
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Affiliation(s)
- Xiangwei Zhu
- National “111” Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan 430068, China; (X.Z.); (Y.Z.); (H.H.); (T.Z.)
| | - Yufa Zhao
- National “111” Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan 430068, China; (X.Z.); (Y.Z.); (H.H.); (T.Z.)
| | - Long Wu
- School of Food Science and Engineering, Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan University, Haikou 570228, China;
| | - Xin Gao
- School of Food Science and Engineering, Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan University, Haikou 570228, China;
| | - Huang Huang
- National “111” Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan 430068, China; (X.Z.); (Y.Z.); (H.H.); (T.Z.)
| | - Yu Han
- Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, College of Life Sciences and Technology, Hubei Engineering University, Xiaogan 432000, China
| | - Ting Zhu
- National “111” Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan 430068, China; (X.Z.); (Y.Z.); (H.H.); (T.Z.)
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Zahraee H, Mehrzad A, Abnous K, Chen CH, Khoshbin Z, Verdian A. Recent Advances in Aptasensing Strategies for Monitoring Phycotoxins: Promising for Food Safety. BIOSENSORS 2022; 13:56. [PMID: 36671891 PMCID: PMC9856083 DOI: 10.3390/bios13010056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/17/2022] [Accepted: 12/23/2022] [Indexed: 06/17/2023]
Abstract
Phycotoxins or marine toxins cause massive harm to humans, livestock, and pets. Current strategies based on ordinary methods are long time-wise and require expert operators, and are not reliable for on-site and real-time use. Therefore, it is urgent to exploit new detection methods for marine toxins with high sensitivity and specificity, low detection limits, convenience, and high efficiency. Conversely, biosensors can distinguish poisons with less response time and higher selectivity than the common strategies. Aptamer-based biosensors (aptasensors) are potent for environmental monitoring, especially for on-site and real-time determination of marine toxins and freshwater microorganisms, and with a degree of superiority over other biosensors, making them worth considering. This article reviews the designed aptasensors based on the different strategies for detecting the various phycotoxins.
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Affiliation(s)
- Hamed Zahraee
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad 9177948564, Iran
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad 9177948564, Iran
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad 9177948564, Iran
| | - Atiyeh Mehrzad
- Department of Food Safety and Quality Control, Research Institute of Food Science and Technology (RIFST), Mashhad 1314983651, Iran
- Department of Food Biotechnology, Research Institute of Food Science and Technology (RIFST), Mashhad 1314983651, Iran
| | - Khalil Abnous
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad 9177948564, Iran
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad 9177948564, Iran
| | - Chih-Hsin Chen
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan
| | - Zahra Khoshbin
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad 9177948564, Iran
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad 9177948564, Iran
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad 9177948564, Iran
| | - Asma Verdian
- Department of Food Safety and Quality Control, Research Institute of Food Science and Technology (RIFST), Mashhad 1314983651, Iran
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Zhao Y, Li L, Yan X, Wang L, Ma R, Qi X, Wang S, Mao X. Emerging roles of the aptasensors as superior bioaffinity sensors for monitoring shellfish toxins in marine food chain. JOURNAL OF HAZARDOUS MATERIALS 2022; 421:126690. [PMID: 34315019 DOI: 10.1016/j.jhazmat.2021.126690] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 07/15/2021] [Accepted: 07/17/2021] [Indexed: 06/13/2023]
Abstract
Shellfish toxins are derived from harmful algae and are easily accumulated in environment and marine food through the food chain, exposing high risks on human health. Preliminary rapid screening is one of the most effective monitoring ways to reduce the potential risks; however, the traditional methods encounter with many limitations, such as complicated procedures, low sensitivity and specificity, and ethical problems. Alternatively, bioaffinity sensors are proposed and draw particular attention. Among them, the aptasensors are springing up and emerging as superior alternatives in recent years, exhibiting high practicability to analyze shellfish toxins in real samples in the marine food chain. Herein, the latest research progresses of aptasensors towards shellfish toxins in the marine food chain in the past five years was reviewed for the first time, in terms of the aptamers applied in these aptasensors, construction principles, signal transduction techniques, response types, individual performance properties, practical applications, and advantages/disadvantages of these aptasensors. Synchronously, critical discussions were given and future perspectives were prospected. We hope this review can serve as a powerful reference to promote further development and application of aptasensors to monitor shellfish toxins, as well as other analytes with similar demands.
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Affiliation(s)
- Yinglin Zhao
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Ling Li
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Xiaochen Yan
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Lele Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Rui Ma
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Xiaoyan Qi
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Sai Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China.
| | - Xiangzhao Mao
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
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