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Zhao C, Yang Z, Hu T, Liu J, Zhao Y, Leng D, Yang K, An G. CRISPR-Cas12a based target recognition initiated duplex-specific nuclease enhanced fluorescence and colorimetric analysis of cell-free DNA (cfDNA). Talanta 2024; 271:125717. [PMID: 38281430 DOI: 10.1016/j.talanta.2024.125717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 01/18/2024] [Accepted: 01/23/2024] [Indexed: 01/30/2024]
Abstract
The significant role of cell-free DNA (cfDNA) for disease diagnosis, including cancer, has garnered a lot of attention. The challenges of creating target-specific primers and the possibility of false-positive signals make amplification-based detection methods problematic. Fluorescent biosensors based on CRISPR-Cas have been widely established, however they still require an amplification step before they can be used for detection. To detect cfDNA, researchers have created a CRISPR-Cas12a-based nucleic acid amplification-free fluorescent biosensor that uses a combination of fluorescence and colorimetric signaling improved by duplex-specific nuclease (DSN). DSN-assisted signal recycling is initiated in H1@MBs when the target cfDNA activates the CRISPR-Cas12a complex, leading to the degradation of single-strand DNA (ssDNA) sequences. This method has an extremely high detection limit for the BRCA-1 breast cancer gene. In addition to measuring viral DNA in a field-deployable and point-of-care testing (POCT) platform, this fast and highly selective sensor can be used to evaluate additional nucleic acid biomarkers.
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Affiliation(s)
- Chenglong Zhao
- Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, No. 23, Post Street, Nangang District, Harbin City, Heilongjiang Province, 150000, China
| | - Zhipeng Yang
- Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, No. 23, Post Street, Nangang District, Harbin City, Heilongjiang Province, 150000, China
| | - Tengfei Hu
- Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, No. 23, Post Street, Nangang District, Harbin City, Heilongjiang Province, 150000, China
| | - Jingwei Liu
- Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, No. 23, Post Street, Nangang District, Harbin City, Heilongjiang Province, 150000, China
| | - Yibo Zhao
- Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, No. 23, Post Street, Nangang District, Harbin City, Heilongjiang Province, 150000, China
| | - Dongming Leng
- Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, No. 23, Post Street, Nangang District, Harbin City, Heilongjiang Province, 150000, China
| | - Kun Yang
- Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, No. 23, Post Street, Nangang District, Harbin City, Heilongjiang Province, 150000, China; Sichuan Rehabilitation Hospital Affiliated of Chengdu University of Traditional Chinese Medicine Sichuan Bayi Rehabilitation Center, Chengdu, Sichuan province, 611100, China
| | - Gang An
- Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, No. 23, Post Street, Nangang District, Harbin City, Heilongjiang Province, 150000, China.
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Yan T, Zhang S, Yang Y, Li Y, Xu LP. Biomineralization-inspired magnetic nanoflowers for sensitive miRNA detection based on exonuclease-assisted target recycling amplification. Mikrochim Acta 2022; 189:260. [PMID: 35713711 DOI: 10.1007/s00604-022-05351-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 05/21/2022] [Indexed: 10/18/2022]
Abstract
Biomineralization-inspired magnetic hybrid nanoflowers were prepared facilely, and capture probes were easily immobilized on the obtained nanoflowers without tedious processing. Based on the magnetic hybrid nanoflowers and exonuclease-assisted target recycling amplification, a fluorescence miRNA sensor was fabricated. The presence of target miRNA leads to the formation of the double-strand structure, which would then be selectively digested by the exonuclease and increase fluorescence intensity. The target miRNA can be released for recycling and signal amplification. Under optimized reaction conditions, the hybrid nanoflower-based miRNA sensor had a broad detection range from 0.001 nM to 100 nM and a limit of detection of 0.23 pM (S/N = 3). The sensitive detection of miRNA in serum was also achieved with recoveries from 94.3% to 116.1%. This work provides a new insight into the fabrication of bioconjugated materials and shows great potential in miRNA sensing.
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Affiliation(s)
- Tingxiu Yan
- Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
| | - Shaofang Zhang
- Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
| | - Yuemeng Yang
- Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
| | - Yuetong Li
- Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
| | - Li-Ping Xu
- Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China.
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Wang JJ, Liu Y, Ding Z, Zhang L, Han C, Yan C, Amador E, Yuan L, Wu Y, Song C, Liu Y, Chen W. The exploration of quantum dot-molecular beacon based MoS 2 fluorescence probing for myeloma-related Mirnas detection. Bioact Mater 2022; 17:360-368. [PMID: 35386454 PMCID: PMC8964961 DOI: 10.1016/j.bioactmat.2021.12.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/23/2021] [Accepted: 12/30/2021] [Indexed: 12/16/2022] Open
Abstract
Highly sensitive and reliable detection of multiple myeloma remains a major challenge in liquid biopsy. Herein, for the first time, quantum dot-molecular beacon (QD-MB) functionalized MoS2 (QD-MB @MoS2) fluorescent probes were designed for the dual detection of multiple myeloma (MM)-related miRNA-155 and miRNA-150. The results indicate that the two probes can effectively detect miRNA-155 and miRNA-150 simultaneously with satisfactory recovery rates, and the limit of detections (LODs) of miRNA-155 and miRNA-150 in human serum are low to 7.19 fM and 5.84 fM, respectively. These results indicate that our method is the most sensitive detection so far reported and that the designed fluorescent probes with signal amplification strategies can achieve highly sensitive detection of MM-related miRNAs for MM diagnosis. Novel quantum dot-molecular beacon functionalized MoS2 (QD-MB@MoS2) fluorescent probes were designed and fabricated. The dual detection of miRNA-155 and miRNA-150 with high sensitivity, low detection limit and high recovery was realized. The fluorescence probes have a great influence on the fluorescence quenching efficiency and the sensitivity. The new MB@MoS2 fluorescent probe and dual detection strategy provide a valuable tool for the detection of miRNA.
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Affiliation(s)
- Jing Jing Wang
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, China
| | - Ying Liu
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, China
| | - Zhou Ding
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, China
| | - Le Zhang
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, China
| | - Caiqin Han
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, China
| | - Changchun Yan
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, China
| | - Eric Amador
- Department of Physics, The University of Texas at Arlington, Arlington, TX, 76019-0059, USA
| | - Liqin Yuan
- Department of General Surgery, The Second Xiangya Hospital, Central South University, ChangSha, Hu'nan, 410011, China
| | - Ying Wu
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, China
| | - Chunyuan Song
- Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
| | - Ying Liu
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, China
| | - Wei Chen
- Department of Physics, The University of Texas at Arlington, Arlington, TX, 76019-0059, USA.,Medical Technology Research Centre, Chelmsford Campus, Anglia Ruskin University, Chelmsford, CM1 1SQ, UK
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Zhang Y, Tian J, Li K, Tian H, Xu W. Label-free visual biosensor based on cascade amplification for the detection of Salmonella. Anal Chim Acta 2019; 1075:144-151. [PMID: 31196420 DOI: 10.1016/j.aca.2019.05.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 04/29/2019] [Accepted: 05/13/2019] [Indexed: 12/13/2022]
Abstract
Salmonella is a widely distributed, extremely harmful bacteria, the presence of which requires confirmation via an on-site visual biosensor. In this study, we constructed a label-free, cascade amplification visualization biosensor for the sensitive and rapid detection of Salmonella enterica subsp. enterica serovar typhimurium based on the RDTG principle (recombinase polymerase amplification (RPA), duplex-specific enzyme (DSN) cleavage, terminal deoxynucleotidyl transferase (TdT) extension and G-quadruplexes output). Following DNA extraction of Salmonella spp., the first step in the construction involved the recognition and amplification of nucleic acids, carried out by RPA, to achieve the first signal amplification within 10 min. This RPA product was then specifically cleaved by DSN to produce a large number of small double-stranded DNA (dsDNA) products with 3'-OH within 15 min to achieve the second signal amplification. Thereafter, TdT was employed to empower these small 3'-OH dsDNA products to extend and produce a large number of long G-rich single-stranded DNAs (ssDNAs) within 20 min, thus realizing the third signal increase. These long G-rich ssDNA products displayed a color change that could be directly observed through the naked eye by adding H2O2/3,3',5,5'-tetramethylbenzidine (TMB). The RDTG biosensor for the detection of Salmonella spp. has several advantages, including a low limit of 6 cfu/mL. It is an isothermal-free instrument, simple to operate, with a rapid detection time of less than 1.5 h. Furthermore, it can be visually characterized and quantified by a microplate reader to detect Salmonella spp., in food and environmental samples, and it has broad application prospects.
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Affiliation(s)
- Yuan Zhang
- College of Food Science and Technology Agricultural University of Hebei, 071001, Baoding, China; Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Jingjing Tian
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Kai Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Hongtao Tian
- College of Food Science and Technology Agricultural University of Hebei, 071001, Baoding, China.
| | - Wentao Xu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China; Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing 100083, China.
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