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Naoumi N, Araya-Farias M, Megariti M, Alexandre L, Papadakis G, Descroix S, Gizeli E. Acoustic detection of a mutation-specific Ligase Chain Reaction based on liposome amplification. Analyst 2024. [PMID: 38758167 DOI: 10.1039/d3an02142d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Single nucleotide variants (SNVs) play a crucial role in understanding genetic diseases, cancer development, and personalized medicine. However, existing ligase-based amplification and detection techniques, such as Rolling Circle Amplification and Ligase Detection Reaction, suffer from low efficiency and difficulties in product detection. To address these limitations, we propose a novel approach that combines Ligase Chain Reaction (LCR) with acoustic detection using highly dissipative liposomes. In our study, we are using LCR combined with biotin- and cholesterol-tagged primers to produce amplicons also modified at each end with a biotin and cholesterol molecule. We then apply the LCR mix without any purification directly on a neutravidin modified QCM device Au-surface, where the produced amplicons can bind specifically through the biotin end. To improve sensitivity, we finally introduce liposomes as signal enhancers. For demonstration, we used the detection of the BRAF V600E point mutation versus the wild-type allele, achieving an impressive detection limit of 220 aM of the mutant target in the presence of the same amount of the wild type. Finally, we combined the assay with a microfluidic fluidized bed DNA extraction technology, offering the potential for semi-automated detection of SNVs in patients' crude samples. Overall, our LCR/acoustic method outperforms other LCR-based approaches and surface ligation biosensing techniques in terms of detection efficiency and time. It effectively overcomes challenges related to DNA detection, making it applicable in diverse fields, including genetic disease and pathogen detection.
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Affiliation(s)
- Nikoletta Naoumi
- Department of Biology, University of Crete, Vassilika Vouton, Heraklion, 70013, Greece
- Institute of Molecular Biology and Biotechnology-FORTH, 100 N. Plastira Str., Heraklion 70013, Greece.
| | - Monica Araya-Farias
- Laboratoire Physico-Chimie Curie, CNRS UMR 168, Institut Curie, PSL Research University, Paris, France
- Institut Pierre-Gilles de Gennes for Microfluidic (IPGG), Paris, France
| | - Maria Megariti
- Institute of Molecular Biology and Biotechnology-FORTH, 100 N. Plastira Str., Heraklion 70013, Greece.
| | - Lucile Alexandre
- Laboratoire Physico-Chimie Curie, CNRS UMR 168, Institut Curie, PSL Research University, Paris, France
- Institut Pierre-Gilles de Gennes for Microfluidic (IPGG), Paris, France
| | - George Papadakis
- Institute of Molecular Biology and Biotechnology-FORTH, 100 N. Plastira Str., Heraklion 70013, Greece.
| | - Stephanie Descroix
- Laboratoire Physico-Chimie Curie, CNRS UMR 168, Institut Curie, PSL Research University, Paris, France
- Institut Pierre-Gilles de Gennes for Microfluidic (IPGG), Paris, France
| | - Electra Gizeli
- Department of Biology, University of Crete, Vassilika Vouton, Heraklion, 70013, Greece
- Institute of Molecular Biology and Biotechnology-FORTH, 100 N. Plastira Str., Heraklion 70013, Greece.
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2
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Kang Q, Chen B, He M, Hu B. Discrimination of Multiple Homologous Sequences Based on DNA Logic Gate and Elemental Labeling Technology. Anal Chem 2024; 96:6329-6336. [PMID: 38597405 DOI: 10.1021/acs.analchem.3c05915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
The simultaneous discrimination of multiple homologous sequences faces challenges due to the high similarity of sequences and the complexity of the discrimination system in most reported works. Herein, a simple and ingenious analysis method was developed to identify eight miRNAs of the let-7 family by combining logic gates and entropy-driven catalytic (EDC)-based lanthanide labeling inductively coupled plasma mass spectrometry (ICP-MS) technology. Specifically, eight miRNAs were first divided into four types according to the difference of bases in the domains 2 and 3 on sequences. To identify the type of targets, a DNA logic gate was constructed with two strand displacement reactions on magnetic beads that could be initiated by different types of targets. Based on the difference of the output signals after two strand displacement reactions, the type of targets was distinguished preliminarily. Then, the discrimination of a specific target was achieved with EDC-based lanthanide labeling ICP-MS detection. By labeling the different magnetic probes with different elemental tags, a specific element signal released from magnetic beads after EDC could be detected by ICP-MS, and therefore, simultaneous detection of homologous sequences was completed. This work provided a novel and simple method for highly specific identification of homologous sequences with the assistance of a logic gate and can promote further development of elemental labeling ICP-MS in the field of multiple analysis.
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Affiliation(s)
- Qi Kang
- Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Beibei Chen
- Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Man He
- Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Bin Hu
- Department of Chemistry, Wuhan University, Wuhan 430072, China
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3
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Zhu X, Ding Y, Li S, Jiang Y, Chen Y. Electroenzymatic cascade reaction on a biohybrid boosts the chiral epoxidation reaction. Sci Bull (Beijing) 2024; 69:483-491. [PMID: 38123433 DOI: 10.1016/j.scib.2023.12.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/11/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023]
Abstract
The chiral epoxidation of styrene and its derivatives is an important transformation that has attracted considerable scientific interest in the chemical industry. Herein, we integrate enzymatic catalysis and electrocatalysis to propose a new route for the chiral epoxidation of styrene and its derivatives. Chloroperoxidase (CPO) functionalized with 1-ethyl-3-methylimidazolium bromide (ILEMB) was loaded onto cobalt nitrogen-doped carbon nanotubes (CoN@CNT) to form a biohybrid (CPO-ILEMB/CoN@CNT). H2O2 species were generated in situ through a two-electron oxygen reduction reaction (2e-ORR) at CoN@CNT to initiate the following enzymatic epoxidation of styrene by CPO. CoN@CNT had high electroactivity for the ORR to produce H2O2 at a more positive potential, prohibiting the conversion of FeIII to FeII in the heme of CPO to maintain enzymatic activity. Meanwhile, CoN@CNT could serve as an ideal carrier for the immobilization of CPO-ILEMB. Hence, the coimmobilization of CPO-ILEMB and CoN@CNT could facilitate the diffusion of intermediate H2O2, which achieved 17 times higher efficiency than the equivalent amounts of free CPO-ILEMB in bulk solution for styrene epoxidation. Notably, an enhancement (∼45%) of chiral selectivity for the epoxidation of styrene was achieved.
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Affiliation(s)
- Xuefang Zhu
- School of Chemistry & Chemical Engineering, Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Normal University, Xi'an 710119, China
| | - Yu Ding
- School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Shuni Li
- School of Chemistry & Chemical Engineering, Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Normal University, Xi'an 710119, China
| | - Yucheng Jiang
- School of Chemistry & Chemical Engineering, Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Normal University, Xi'an 710119, China.
| | - Yu Chen
- School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
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4
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Wu K, Kong F, Zhang J, Tang Y, Chen Y, Chao L, Nie L, Huang Z. Recent Progress in Single-Nucleotide Polymorphism Biosensors. BIOSENSORS 2023; 13:864. [PMID: 37754098 PMCID: PMC10527258 DOI: 10.3390/bios13090864] [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: 07/19/2023] [Revised: 08/23/2023] [Accepted: 08/26/2023] [Indexed: 09/28/2023]
Abstract
Single-nucleotide polymorphisms (SNPs), the most common form of genetic variation in the human genome, are the main cause of individual differences. Furthermore, such attractive genetic markers are emerging as important hallmarks in clinical diagnosis and treatment. A variety of destructive abnormalities, such as malignancy, cardiovascular disease, inherited metabolic disease, and autoimmune disease, are associated with single-nucleotide variants. Therefore, identification of SNPs is necessary for better understanding of the gene function and health of an individual. SNP detection with simple preparation and operational procedures, high affinity and specificity, and cost-effectiveness have been the key challenge for years. Although biosensing methods offer high specificity and sensitivity, as well, they suffer drawbacks, such as complicated designs, complicated optimization procedures, and the use of complicated chemistry designs and expensive reagents, as well as toxic chemical compounds, for signal detection and amplifications. This review aims to provide an overview on improvements for SNP biosensing based on fluorescent and electrochemical methods. Very recently, novel designs in each category have been presented in detail. Furthermore, detection limitations, advantages and disadvantages, and challenges have also been presented for each type.
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Affiliation(s)
| | | | | | | | | | | | - Libo Nie
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China; (K.W.); (F.K.); (J.Z.); (Y.T.); (Y.C.); (L.C.)
| | - Zhao Huang
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China; (K.W.); (F.K.); (J.Z.); (Y.T.); (Y.C.); (L.C.)
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5
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Shi J, Oger PM, Cao P, Zhang L. Thermostable DNA ligases from hyperthermophiles in biotechnology. Front Microbiol 2023; 14:1198784. [PMID: 37293226 PMCID: PMC10244674 DOI: 10.3389/fmicb.2023.1198784] [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: 04/02/2023] [Accepted: 05/09/2023] [Indexed: 06/10/2023] Open
Abstract
DNA ligase is an important enzyme ubiquitous in all three kingdoms of life that can ligate DNA strands, thus playing essential roles in DNA replication, repair and recombination in vivo. In vitro, DNA ligase is also used in biotechnological applications requiring in DNA manipulation, including molecular cloning, mutation detection, DNA assembly, DNA sequencing, and other aspects. Thermophilic and thermostable enzymes from hyperthermophiles that thrive in the high-temperature (above 80°C) environments have provided an important pool of useful enzymes as biotechnological reagents. Similar to other organisms, each hyperthermophile harbors at least one DNA ligase. In this review, we summarize recent progress on structural and biochemical properties of thermostable DNA ligases from hyperthermophiles, focusing on similarities and differences between DNA ligases from hyperthermophilic bacteria and archaea, and between these thermostable DNA ligases and non-thermostable homologs. Additionally, altered thermostable DNA ligases are discussed. Possessing improved fidelity or thermostability compared to the wild-type enzymes, they could be potential DNA ligases for biotechnology in the future. Importantly, we also describe current applications of thermostable DNA ligases from hyperthermophiles in biotechnology.
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Affiliation(s)
- Jingru Shi
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, China
| | - Philippe M. Oger
- University of Lyon, INSA de Lyon, CNRS UMR, Villeurbanne, France
| | - Peng Cao
- Faculty of Environment and Life, Beijing University of Technology, Beijing, China
| | - Likui Zhang
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, China
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6
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Recent advances in biosensors and sequencing technologies for the detection of mutations. Microchem J 2023. [DOI: 10.1016/j.microc.2022.108306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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7
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Advances in ligase-based nucleic acid amplification technology for detecting gene mutations: a review. Mol Cell Biochem 2022; 478:1621-1631. [DOI: 10.1007/s11010-022-04615-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 11/14/2022] [Indexed: 11/29/2022]
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8
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Shanmugam ST, Trashin S, De Wael K. Singlet oxygen-based photoelectrochemical detection of DNA. Biosens Bioelectron 2022; 195:113652. [PMID: 34583105 DOI: 10.1016/j.bios.2021.113652] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 09/02/2021] [Accepted: 09/16/2021] [Indexed: 01/02/2023]
Abstract
The current work, designed for the photoelectrochemical detection of DNA, evaluates light-responsive DNA probes carrying molecular photosensitizers generating singlet oxygen (1O2). We take advantage of their chromophore's ability to produce 1O2 upon photoexcitation and subsequent photocurrent response. Type I, fluorescent and type II photosensitizers were studied using diode lasers at 406 nm blue, 532 nm green and 659 nm red lasers in the presensce and absence of a redox reporter, hydroquinone (HQ). Only type II photosensitizers (producing 1O2) resulted in a noticeable photocurrent in 1-4 nA range upon illumination, in particular, dissolved DNA probes labeled with chlorin e6 and erythrosine were found to give a well-detectable photocurrent response in the presence of HQ. Whereas, Type I photosensitizers and fluorescent chromophores generate negligible photocurrents (<0.15 nA). The analytical performance of the sensing system was evaluated using a magnetic beads-based DNA assay on disposable electrode platforms, with a focus to enhance the sensitivity and robustness of the technique in detecting complementary DNA targets. Amplified photocurrent responses in the range of 70-100 nA were obtained and detection limits of 17 pM and 10 pM were achieved using magnetic beads-captured chlorin e6 and erythrosine labeled DNA probes respectively. The presented novel photoelectrochemical detection can further be optimized and employed in applications for which enzymatic amplification such as polymerase chain reaction (PCR) is not applicable owing to their limitations and as an effective alternative to colorimetric detection when rapid detection of specific nucleic acid targets is required.
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Affiliation(s)
- Saranya Thiruvottriyur Shanmugam
- A-Sense Lab, Department of Bioengineering, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium; NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Stanislav Trashin
- A-Sense Lab, Department of Bioengineering, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium; NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Karolien De Wael
- A-Sense Lab, Department of Bioengineering, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium; NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium.
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9
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Li T, Zou H, Zhang J, Ding H, Li C, Chen X, Li Y, Feng W, Kageyama K. High-efficiency and high-fidelity ssDNA circularisation via the pairing of five 3′-terminal bases to assist LR-LAMP for the genotyping of single-nucleotide polymorphisms. Analyst 2022; 147:3993-3999. [DOI: 10.1039/d2an01042a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A high-fidelity ssDNA circularisation via the pairing of five 3′-terminal bases was developed to assist LR-LAMP for genotyping of SNPs.
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Affiliation(s)
- Taiwen Li
- Key Laboratory of Agricultural Microbiology, College of Agriculture, Guiyang 550025, China
| | - Huayan Zou
- Key Laboratory of Agricultural Microbiology, College of Agriculture, Guiyang 550025, China
| | - Jing Zhang
- Key Laboratory of Agricultural Microbiology, College of Agriculture, Guiyang 550025, China
| | - Haixia Ding
- Key Laboratory of Agricultural Microbiology, College of Agriculture, Guiyang 550025, China
| | - Cheng Li
- Key Laboratory of Agricultural Microbiology, College of Agriculture, Guiyang 550025, China
| | - Xiangru Chen
- Key Laboratory of Agricultural Microbiology, College of Agriculture, Guiyang 550025, China
| | - Yunzhou Li
- Key Laboratory of Agricultural Microbiology, College of Agriculture, Guiyang 550025, China
| | - Wenzhuo Feng
- Key Laboratory of Agricultural Microbiology, College of Agriculture, Guiyang 550025, China
| | - Koji Kageyama
- River Basin Research Center, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
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10
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Jiang H, Xi H, Juhas M, Zhang Y. Biosensors for Point Mutation Detection. Front Bioeng Biotechnol 2021; 9:797831. [PMID: 34976987 PMCID: PMC8714947 DOI: 10.3389/fbioe.2021.797831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 11/17/2021] [Indexed: 11/25/2022] Open
Affiliation(s)
- Hanlin Jiang
- College of Science, Harbin Institute of Technology, Shenzhen, China
| | - Hui Xi
- College of Science, Harbin Institute of Technology, Shenzhen, China
| | - Mario Juhas
- Medical and Molecular Microbiology Unit, Department of Medicine, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland
| | - Yang Zhang
- College of Science, Harbin Institute of Technology, Shenzhen, China
- *Correspondence: Yang Zhang,
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11
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Chen J, Wei H, Fang X, Cai Y, Zhang Z, Wang Y, Lin J, Zhang W, Zhong G. A pragmatic eLCR for an ultrasensitive detection of methicillin-resistant Staphylococcus aureus in joint synovial fluid: superior to qPCR. Analyst 2021; 146:3500-3509. [PMID: 33885074 DOI: 10.1039/d1an00350j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
For periprosthetic joint infection (PJI) patients, an early and rapid detection of methicillin-resistant Staphylococcus aureus (MRSA) in joint synovial fluid is of great significance for receiving timely treatment and avoiding side effects. In clinical practice, the methods for detecting MRSA include the culture-based method and the PCR-based mecA gene detection method with fluorescent readout. However, the culture-based method requires up to 3-7 days for incubation and elaborative screening. The PCR-based molecular diagnosis, due to its high sensitivity, improves the detection time but sacrifices cost and gives false-positive results. Herein, a ligation chain reaction (LCR)-based electrochemical biosensor was developed to detect the mecA of MRSA with the advantages of rapidity, accuracy and low cost. In this system, an integrated dsDNA labeled with thiol and biotin at both terminals is generated only in the presence of the target DNA after LCR, followed by immobilization of the integrated dsDNAs on the bovine serum albumin (BSA)-coated gold electrode, and then the streptavidin horseradish peroxidase (SA-HRPs) is specifically bound to the biotin labels via biotin-streptavidin interaction, generating the catalytic amperometric readout. Impressively, the developed method achieved the detection of rare mecA in the joint synovial fluid of PJI patients (417-666 copies as quantified by qPCR). The proposed electrochemistry-based method is highly convenient for the point-of-care testing and was comparable with PCR in sensitivity, but superior in selectivity (single-base differentiation) and cost (nanomolar DNA probe consumption and simple device), demonstrating its huge potential in clinical applications for MRSA diagnosis.
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Affiliation(s)
- Jinyuan Chen
- The Central Laboratory, Fujian Key Laboratory of Precision Medicine for Cancer, the First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China and Key Laboratory of Radiation Biology of Fujian higher education institutions, the First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China
| | - Hongxiang Wei
- Department of Orthopaedics, Fujian Provincial Institute of Orthopaedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China.
| | - Xinyu Fang
- Department of Orthopaedics, Fujian Provincial Institute of Orthopaedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China.
| | - Yuanqing Cai
- Department of Orthopaedics, Fujian Provincial Institute of Orthopaedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China.
| | - Zhenzhen Zhang
- Department of Phthology, the First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China
| | - Yunqing Wang
- Department of Orthopaedics, Fujian Provincial Institute of Orthopaedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China.
| | - Jianhua Lin
- Department of Orthopaedics, Fujian Provincial Institute of Orthopaedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China.
| | - Wenming Zhang
- Department of Orthopaedics, Fujian Provincial Institute of Orthopaedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China.
| | - Guangxian Zhong
- Department of Orthopaedics, Fujian Provincial Institute of Orthopaedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China.
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12
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Zhong GX, Ye CL, Wei HX, Yang LY, Wei QX, Liu ZJ, Fu LX, Lin XH, Chen JY. Ultrasensitive Detection of RNA with Single-Base Resolution by Coupling Electrochemical Sensing Strategy with Chimeric DNA Probe-Aided Ligase Chain Reaction. Anal Chem 2020; 93:911-919. [PMID: 33284015 DOI: 10.1021/acs.analchem.0c03563] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Accurate and sensitive detection of single-base mutations in RNAs is of great value in basic studies of life science and medical diagnostics. However, the current available RNA detection methods are challenged by heterogeneous clinical samples in which trace RNA mutants usually existed in a large pool of normal wild sequences. Thus, there is still great need for developing the highly sensitive and highly specific methods in detecting single-base mutations of RNAs in heterogeneous clinical samples. In the present study, a new chimeric DNA probe-aided ligase chain reaction-based electrochemical method (cmDNA-eLCR) was developed for RNA mutation detection through the BSA-based carrier platform and the horseradish peroxidase-hydrogen peroxide-tetramethylbenzidine (HRP-H2O2-TMB) system. The denaturing polyacrylamide gel electrophoresis and a fluorophore-labeled probe was ingeniously designed to demonstrate the advantage of cmDNA in ligation to normal DNA templated by RNA with the catalysis of T4 RNA ligase 2 as well as its higher selectivity than DNA ligase system. Finally, the proposed cmDNA-eLCR, compared with the traditional eLCR, showed excellent performance in discriminating single base-mismatched sequences, where the signal response for mismatched targets at a high concentration could overlap completely with that for the blank control. Besides, this cmDNA-eLCR assay had a wide linear range crossing six orders of magnitude from 1.0 × 10-15 to1.0 × 10-10 M with a limit of detection as low as 0.6 fM. Furthermore, this assay was applied to detect RNA in real sample with a satisfactory result, thereby demonstrating its great potential in diagnosis of RNA-related diseases.
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Affiliation(s)
- Guang-Xian Zhong
- Department of Orthopedics, Fujian Provincial Institute of Orthopedics, First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - Chen-Liu Ye
- Department of Pharmacy, Longyan First Hospital, Affiliated to Fujian Medical University, Longyan 364000, China
| | - Hong-Xiang Wei
- Department of Orthopedics, Fujian Provincial Institute of Orthopedics, First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - Liang-Yong Yang
- Department of Pharmacy, First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - Qing-Xia Wei
- Department of Pharmacy, First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - Zhou-Jie Liu
- Department of Pharmacy, First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - Leng-Xi Fu
- The Central Laboratory, First Affiliated Hospital of Fujian Medical University, Fujian Provincial Key Laboratory of Precision Medicine for Cancer, Key Laboratory of Radiation Biology (Fujian Medical University), Fujian Province University, Fuzhou 350005, China
| | - Xin-Hua Lin
- Department of Pharmaceutical Analysis, Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Faculty of Pharmacy, Fujian Medical University, Fuzhou 350122, China
| | - Jin-Yuan Chen
- The Central Laboratory, First Affiliated Hospital of Fujian Medical University, Fujian Provincial Key Laboratory of Precision Medicine for Cancer, Key Laboratory of Radiation Biology (Fujian Medical University), Fujian Province University, Fuzhou 350005, China
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