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Chen Z, Sun Q, Yang Y, Nie X, Xiang W, Ren Y, Le T. Aptamer-based diagnostic and therapeutic approaches for animal viruses: A review. Int J Biol Macromol 2024; 257:128677. [PMID: 38072350 DOI: 10.1016/j.ijbiomac.2023.128677] [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: 11/01/2023] [Revised: 11/28/2023] [Accepted: 12/06/2023] [Indexed: 01/27/2024]
Abstract
Animal diseases often have significant consequences due to the unclear and time-consuming diagnosis process. Furthermore, the emergence of new viral infections and drug-resistant pathogens has further complicated the diagnosis and treatment of viral diseases. Aptamers, which are obtained through systematic evolution of ligands by exponential enrichment (SELEX) technology, provide a promising solution as they enable specific identification and binding to targets, facilitating pathogen detection and the development of novel therapeutics. This review presented an overview of aptasensors for animal virus detection, discussed the antiviral activity and mechanisms of aptamers, and highlighted advancements in aptamer-based antiviral research following the COVID-19 pandemic. Additionally, the challenges and prospects of aptamer-based virus diagnosis and treatment research were explored. Although this review was not exhaustive, it offered valuable insights into the progress of aptamer-based antiviral drug research, target mechanisms, as well as the development of novel antiviral drugs and biosensors.
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Affiliation(s)
- Zhuoer Chen
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, PR China
| | - Qi Sun
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, PR China
| | - Ying Yang
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, PR China
| | - Xunqing Nie
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, PR China
| | - Wenyu Xiang
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, PR China
| | - Yueyang Ren
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, PR China
| | - Tao Le
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, PR China.
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Qin P, Munang'andu HM, Xu C, Xie J. Megalocytivirus and Other Members of the Family Iridoviridae in Finfish: A Review of the Etiology, Epidemiology, Diagnosis, Prevention and Control. Viruses 2023; 15:1359. [PMID: 37376659 DOI: 10.3390/v15061359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/06/2023] [Accepted: 06/11/2023] [Indexed: 06/29/2023] Open
Abstract
Aquaculture has expanded to become the fastest growing food-producing sector in the world. However, its expansion has come under threat due to an increase in diseases caused by pathogens such as iridoviruses commonly found in aquatic environments used for fish farming. Of the seven members belonging to the family Iridoviridae, the three genera causing diseases in fish comprise ranaviruses, lymphocystiviruses and megalocytiviruses. These three genera are serious impediments to the expansion of global aquaculture because of their tropism for a wide range of farmed-fish species in which they cause high mortality. As economic losses caused by these iridoviruses in aquaculture continue to rise, the urgent need for effective control strategies increases. As a consequence, these viruses have attracted a lot of research interest in recent years. The functional role of some of the genes that form the structure of iridoviruses has not been elucidated. There is a lack of information on the predisposing factors leading to iridovirus infections in fish, an absence of information on the risk factors leading to disease outbreaks, and a lack of data on the chemical and physical properties of iridoviruses needed for the implementation of biosecurity control measures. Thus, the synopsis put forth herein provides an update of knowledge gathered from studies carried out so far aimed at addressing the aforesaid informational gaps. In summary, this review provides an update on the etiology of different iridoviruses infecting finfish and epidemiological factors leading to the occurrence of disease outbreaks. In addition, the review provides an update on the cell lines developed for virus isolation and culture, the diagnostic tools used for virus detection and characterization, the current advances in vaccine development and the use of biosecurity in the control of iridoviruses in aquaculture. Overall, we envision that the information put forth in this review will contribute to developing effective control strategies against iridovirus infections in aquaculture.
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Affiliation(s)
- Pan Qin
- Key Laboratory of Marine Biotechnology of Fujian Province, College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | | | - Cheng Xu
- Department of Paraclinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, 1433 Ås, Norway
| | - Jianjun Xie
- Key Laboratory of Mariculture and Enhancement of Zhejiang Province, Marine Fisheries Research Institute of Zhejiang, Zhoushan 316100, China
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Kulabhusan PK, Pishva P, Çapkın E, Tambe P, Yüce M. Aptamer-based Emerging Tools for Viral Biomarker Detection: A Focus on SARS-CoV-2. Curr Med Chem 2023; 30:910-934. [PMID: 35156569 DOI: 10.2174/1568009622666220214101059] [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: 06/22/2021] [Revised: 11/11/2021] [Accepted: 12/19/2021] [Indexed: 11/22/2022]
Abstract
Viral infections can cause fatal illnesses to humans as well as animals. Early detection of viruses is therefore crucial to provide effective treatment to patients. Recently, the Covid-19 pandemic has undoubtedly given an alarming call to develop rapid and sensitive detection platforms. The viral diagnostic tools need to be fast, affordable, and easy to operate with high sensitivity and specificity equivalent or superior to the currently used diagnostic methods. The present detection methods include direct detection of viral antigens or measuring the response of antibodies to viral infections. However, the sensitivity and quantification of the virus are still a significant challenge. Detection tools employing synthetic binding molecules like aptamers may provide several advantages over the conventional methods that use antibodies in the assay format. Aptamers are highly stable and tailorable molecules and are therefore ideal for detection and chemical sensing applications. This review article discusses various advances made in aptamer-based viral detection platforms, including electrochemical, optical, and colorimetric methods to detect viruses, specifically SARS-Cov-2. Considering the several advantages, aptamers could be game-changing in designing high-throughput biosensors for viruses and other biomedical applications in the future.
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Affiliation(s)
- Prabir Kumar Kulabhusan
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, UK
| | - Parsa Pishva
- Sabanci University, Faculty of Engineering and Natural Sciences, Istanbul, 34956, Turkey
| | - Eda Çapkın
- Sabanci University, Faculty of Engineering and Natural Sciences, Istanbul, 34956, Turkey
| | - Prajakta Tambe
- Wellcome-- Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, UK
| | - Meral Yüce
- Sabanci University, SUNUM Nanotechnology Research, and Application Centre, Istanbul, 34956, Turkey
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4
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Wei H, Liu M, Ke K, Xiao S, Huang L, He Q, Mo C, Pang H, Xiao G, Li P, Yu Q. Study on aptamer based high throughput approach identifies natural ingredients against RGNNV. JOURNAL OF FISH DISEASES 2022; 45:1711-1719. [PMID: 35916773 DOI: 10.1111/jfd.13693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/13/2022] [Accepted: 07/18/2022] [Indexed: 06/15/2023]
Abstract
Nervous necrosis virus (NNV) is one of the most destructive pathogens in marine fish aquaculture and is capable of infecting more than 50 fish species worldwide, which resulted in great economic losses. Effective drugs for managing NNV infection are urgently required. Medicinal plants have been known for thousands of years and benefit of medicinal plants against pathogens in aquaculture have emerged. Nowadays, the most commonly used method for detecting virus infection and assessing antiviral drugs efficacy is reverse transcription-quantitative real-time PCR. However, the application is limited on account of high reagent costs, complex time-consuming operations and long detection time. Aptamers have been widely applied in application of pathogens or diseases diagnosis and treatments because of high specificity, strong affinity, good stability, easy synthesized and low costs. This study aimed to establish an aptamer (GBN34)-based high-throughput screening (GBN34-AHTS) model for efficient selection and evaluation of natural ingredients against NNV infection. GBN34-AHTS is an expeditious rapid method for selecting natural ingredients against NNV, which is characterized with high-speed, dram, sensitive and accurate. AHTS strategy could reduce work intensity and experimental costs and shorten the whole screening cycle of effective ingredients. AHTS should be suitable for rapid selection of effective ingredients against other viruses, which is important for improving the prevention and controlling of aquatic diseases.
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Affiliation(s)
- Hongling Wei
- Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Academy of Sciences, Nanning, China
| | - Mingzhu Liu
- Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Academy of Sciences, Nanning, China
| | - Ke Ke
- Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Academy of Sciences, Nanning, China
| | - Shuangyan Xiao
- Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Academy of Sciences, Nanning, China
| | - Lin Huang
- Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Academy of Sciences, Nanning, China
| | - Qiongyu He
- Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Academy of Sciences, Nanning, China
- Guangxi Yulin Xinjian planting and breeding Co., Ltd, Yulin, China
| | - Changping Mo
- Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Academy of Sciences, Nanning, China
- Guangxi Yulin Xinjian planting and breeding Co., Ltd, Yulin, China
| | - Hai Pang
- Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Academy of Sciences, Nanning, China
- Guangxi Yulin Xinjian planting and breeding Co., Ltd, Yulin, China
| | - Guozhu Xiao
- Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Academy of Sciences, Nanning, China
- Guangxi Yulin Xinjian planting and breeding Co., Ltd, Yulin, China
| | - Pengfei Li
- Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Academy of Sciences, Nanning, China
| | - Qing Yu
- Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Academy of Sciences, Nanning, China
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Wei H, Guo Z, Long Y, Liu M, Xiao J, Huang L, Yu Q, Li P. Aptamer-Based High-Throughput Screening Model for Efficient Selection and Evaluation of Natural Ingredients against SGIV Infection. Viruses 2022; 14:v14061242. [PMID: 35746713 PMCID: PMC9227401 DOI: 10.3390/v14061242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/29/2022] [Accepted: 06/01/2022] [Indexed: 11/16/2022] Open
Abstract
Singapore grouper iridovirus (SGIV) causes high economic losses in mariculture. Effective drugs for managing SGIV infection are urgently required. Medicinal plant resources are rich in China. Medicinal plants have a long history and significant curative effects in the treatment of many diseases. Reverse-transcription quantitative real-time PCR is the most commonly used method for detecting virus infection and assessing antiviral efficacy with high accuracy. However, their applications are limited due to high reagent costs and complex time-consuming operations. Aptamers have been applied in some biosensors to achieve the accurate detection of pathogens or diseases through signal amplification. This study aimed to establish an aptamer-based high-throughput screening (AHTS) model for the efficient selection and evaluation of medicinal plants components against SGIV infection. Q2-AHTS is an expeditious, rapid method for selecting medicinal plant drugs against SGIV, which was characterized as being dram, high-speed, sensitive, and accurate. AHTS strategy reduced work intensity and experimental costs and shortened the whole screening cycle for effective ingredients. AHTS should be suitable for the rapid selection of effective components against other viruses, thus further promoting the development of high-throughput screening technology.
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Affiliation(s)
- Hongling Wei
- Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Academy of Sciences, Nanning 530007, China; (H.W.); (M.L.); (L.H.)
| | - Zhongbao Guo
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Breeding, Guangxi Academy of Fishery Science, Nanning 530000, China; (Z.G.); (J.X.)
| | - Yu Long
- Department of Biochemistry and Molecular Biology, Wuzhou Medical College, Wuzhou 543000, China;
| | - Mingzhu Liu
- Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Academy of Sciences, Nanning 530007, China; (H.W.); (M.L.); (L.H.)
| | - Jun Xiao
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Breeding, Guangxi Academy of Fishery Science, Nanning 530000, China; (Z.G.); (J.X.)
| | - Lin Huang
- Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Academy of Sciences, Nanning 530007, China; (H.W.); (M.L.); (L.H.)
| | - Qing Yu
- Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Academy of Sciences, Nanning 530007, China; (H.W.); (M.L.); (L.H.)
- Correspondence: (Q.Y.); (P.L.); Tel.: +86-0771-2503976 (P.L.); Fax: +86-0771-2503976 (P.L.)
| | - Pengfei Li
- Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Academy of Sciences, Nanning 530007, China; (H.W.); (M.L.); (L.H.)
- Correspondence: (Q.Y.); (P.L.); Tel.: +86-0771-2503976 (P.L.); Fax: +86-0771-2503976 (P.L.)
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A Novel Sandwich ELASA Based on Aptamer for Detection of Largemouth Bass Virus (LMBV). Viruses 2022; 14:v14050945. [PMID: 35632687 PMCID: PMC9145880 DOI: 10.3390/v14050945] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 11/17/2022] Open
Abstract
Largemouth bass virus (LMBV) is a major viral pathogen in largemouth bass culture, usually causing high mortality and heavy economic losses. Accurate and early detection of LMBV is crucial for diagnosis and control of the diseases caused by LMBV. Previously, we selected the specific aptamers, LA38 and LA13, targeting LMBV by systematic evolution of ligands by exponential enrichment (SELEX). In this study, we further generated truncated LA38 and LA13 (named as LA38s and LA13s) with high specificity and affinities and developed an aptamer-based sandwich enzyme-linked apta-sorbent assay (ELASA) for LMBV diagnosis. The sandwich ELASA showed high specificity and sensitivity for the LMBV detection, without cross reaction with other viruses. The detection limit of the ELASA was as low as 1.25 × 102 LMBV-infected cells, and the incubation time of the lysate and biotin labeled aptamer was as short as 10 min. The ELASA could still detect LMBV infection in spleen lysates at dilutions of 1/25, with good consistency of qRT-PCR. For the fish samples collected from the field, the sensitivity of ELASA was 13.3% less than PCR, but the ELASA was much more convenient and less time consuming. The procedure of ELASA mainly requires washing and incubation, with completion in approximately 4 h. The sandwich ELASA offers a useful tool to rapidly detect LMBV rapidly, contributing to control and prevention of LMBV infection.
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Yu Y, Yang Z, Wang L, Sun F, Lee M, Wen Y, Qin Q, Yue GH. LAMP for the rapid diagnosis of iridovirus in aquaculture. AQUACULTURE AND FISHERIES 2022. [DOI: 10.1016/j.aaf.2021.08.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Cui H, Lu H, Yang J, Fu Y, Huang Y, Li L, Ding Y. A Significant Fluorescent Aptamer Sensor Based on Carbon Dots and Graphene Oxide for Highly Selective Detection of Progesterone. J Fluoresc 2022; 32:927-936. [PMID: 35119576 DOI: 10.1007/s10895-022-02896-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 01/18/2022] [Indexed: 10/19/2022]
Abstract
In this paper, a fluorescent aptamer sensor was constructed based on the carbon dots (CDs) and graphene oxide (GO). This sensor combines the excellent fluorescence performance of CDs with the high specificity of aptamer, which can detect progesterone (P4) with high sensitivity and selectivity. In the absence of P4, the CDs-aptamer system and GO form a fluorescence resonance energy transfer process (FRET), which quenches the fluorescence of the CDs. When P4 is added, the aptamer specifically binds to it, resulting the fluorescence of the CDs is recovered. At optimal conditions, the fluorescence intensity recovered by the CDs has a linear relationship with the concentration of P4 in the range of 0.1-120 nM and the detection limit is 3.3 × 10-11 M. Besides, the sensor has satisfactory detection results of P4 in milk, indicating that constructed method has enormous potential for application in food safety.
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Affiliation(s)
- Hanyue Cui
- Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, China
| | - Huan Lu
- Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, China
| | - Jing Yang
- Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, China
| | - Yao Fu
- Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, China
| | - Yan Huang
- Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, China
| | - Li Li
- Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, China.
| | - Yaping Ding
- Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, China.
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Yu Q, Li M, Liu M, Huang S, Wang G, Wang T, Li P. Selection and Characterization of ssDNA Aptamers Targeting Largemouth Bass Virus Infected Cells With Antiviral Activities. Front Microbiol 2022; 12:785318. [PMID: 34975807 PMCID: PMC8718865 DOI: 10.3389/fmicb.2021.785318] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/19/2021] [Indexed: 11/13/2022] Open
Abstract
Largemouth bass virus (LMBV) is one of the most devastating viral pathogens in farmed Largemouth bass. Aptamers are novel molecule probes and have been widely applied in the field of efficient therapeutic and diagnostic agents development. LMBV-infected fathead minnow cells (LMBV-FHM) served as target cells in this study, and three DNA aptamers (LBVA1, LBVA2, and LBVA3) were generated against target cells by SELEX technology. The selected aptamers could specifically bind to LMBV-FHM cells, with rather high calculated dissociation constants (Kd) of 890.09, 517.22, and 249.31 nM for aptamers LBVA1, LBVA2, and LBVA3, respectively. Three aptamers displayed efficient antiviral activities in vitro. It indicates that the selected aptamers have great potentials in developing efficient anti-viruses treatments. The targets of aptamers LBVA1, LBVA2, and LBVA3 could be membrane proteins on host cells. The targets of aptamers (LBVA1, LBVA2, and LBVA3) come out on the cells surface at 8, 10, 8 h post-infection. As novel molecular probes for accurate recognition, aptamer LBVA3 could detect LMBV infection in vitro and in vivo, it indicates that the selected aptamers could be applied in the development of rapid detective technologies, which are characterized by high sensitivity, accuracy, and easy operation.
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Affiliation(s)
- Qing Yu
- Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Academy of Sciences, Nanning, China
| | - Mengmeng Li
- Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Academy of Sciences, Nanning, China.,College of Life Science, Henan Normal University, Xinxiang, China
| | - Mingzhu Liu
- Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Academy of Sciences, Nanning, China.,Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning, China
| | - Shuaishuai Huang
- Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Academy of Sciences, Nanning, China.,Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity Conservation, College of Marine Sciences, Beibu Gulf University, Qinzhou, China
| | - Gaoxue Wang
- Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Academy of Sciences, Nanning, China
| | - Taixia Wang
- College of Life Science, Henan Normal University, Xinxiang, China
| | - Pengfei Li
- Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Academy of Sciences, Nanning, China.,Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning, China.,Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity Conservation, College of Marine Sciences, Beibu Gulf University, Qinzhou, China
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Aptamers in Virology-A Consolidated Review of the Most Recent Advancements in Diagnosis and Therapy. Pharmaceutics 2021; 13:pharmaceutics13101646. [PMID: 34683938 PMCID: PMC8540715 DOI: 10.3390/pharmaceutics13101646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/28/2021] [Accepted: 10/01/2021] [Indexed: 01/05/2023] Open
Abstract
The use of short oligonucleotide or peptide molecules as target-specific aptamers has recently garnered substantial attention in the field of the detection and treatment of viral infections. Based on their high affinity and high specificity to desired targets, their use is on the rise to replace antibodies for the detection of viruses and viral antigens. Furthermore, aptamers inhibit intracellular viral transcription and translation, in addition to restricting viral entry into host cells. This has opened up a plethora of new targets for the research and development of novel vaccines against viruses. Here, we discuss the advances made in aptamer technology for viral diagnosis and therapy in the past decade.
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Yu Q, Liu M, Wu S, Xiao H, Qin X, Li P. Generation and characterization of aptamers against grass carp reovirus infection for the development of rapid detection assay. JOURNAL OF FISH DISEASES 2021; 44:33-44. [PMID: 32959408 DOI: 10.1111/jfd.13265] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/20/2020] [Accepted: 08/23/2020] [Indexed: 06/11/2023]
Abstract
Grass carp reovirus (GCRV) causes devastating viral haemorrhagic disease in farmed grass carp (Ctenopharyngon idellus). As novel molecular probes, aptamers have been widely applied in rapid diagnosis and efficient therapies against virus or diseases. In this study, three single-stranded DNA (ssDNA) aptamers were selected against GCRV-infected CIK cells via SELEX (systematic evolution of ligands by exponential enrichment technology). Secondary structures predicted by MFOLD indicated that aptamers formed stem-loop structures, and GVI-11 had the lowest ΔG value of -30.84 KJ/mol. Three aptamers could specifically recognize GCRV-infected CIK cells, with calculated dissociation constants (Kd) of 220.86, 176.63 and 278.66 nM for aptamers GVI-1, GVI-7 and GVI-11, respectively, which indicated that they could serve as specific delivery system for antiviral therapies. The targets of aptamers GVI-1, GVI-7 and GVI-11 on the surface of GCRV-infected cells could be membrane proteins, which were trypsin-sensitive. Furthermore, FAM-labelled aptamer GVI-7 could be applied to detect GCRV infection in vivo. It is the first time to generate and characterize aptamers against GCRV-infected cells. These aptamers have great potentials in development of rapid diagnosis technology and antiviral agents against GCRV infection in aquaculture.
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Affiliation(s)
- Qing Yu
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Advanced Technology R & D Center, Beibu Gulf Marine Industrial Research Institute, Guangxi Academy of Sciences, Nanning, China
| | - Mingzhu Liu
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Advanced Technology R & D Center, Beibu Gulf Marine Industrial Research Institute, Guangxi Academy of Sciences, Nanning, China
| | - Siting Wu
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Advanced Technology R & D Center, Beibu Gulf Marine Industrial Research Institute, Guangxi Academy of Sciences, Nanning, China
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Hehe Xiao
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Advanced Technology R & D Center, Beibu Gulf Marine Industrial Research Institute, Guangxi Academy of Sciences, Nanning, China
| | - Xinling Qin
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, China
| | - Pengfei Li
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Advanced Technology R & D Center, Beibu Gulf Marine Industrial Research Institute, Guangxi Academy of Sciences, Nanning, China
- Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity Conservation, College of Marine Sciences, Beibu Gulf University, Qinzhou, China
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Ospina-Villa JD, Cisneros-Sarabia A, Sánchez-Jiménez MM, Marchat LA. Current Advances in the Development of Diagnostic Tests based on Aptamers in Parasitology: A Systematic Review. Pharmaceutics 2020; 12:pharmaceutics12111046. [PMID: 33142793 PMCID: PMC7693570 DOI: 10.3390/pharmaceutics12111046] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/25/2020] [Accepted: 10/27/2020] [Indexed: 02/07/2023] Open
Abstract
Aptamers are single-stranded DNA or RNA sequences of 20–80 nucleotides that interact with different targets such as: proteins, ions, viruses, or toxins, through non-covalent interactions and their unique three-dimensional conformation. They are obtained in vitro by the systematic evolution of ligands by exponential enrichment (SELEX). Because of their ability of target recognition with high specificity and affinity, aptamers are usually compared to antibodies. However, they present many advantages that make them promising molecules for the development of new methods for the diagnosis and treatment of human diseases. In medical parasitology, aptamers also represent an attractive alternative for the implementation of new parasite detection methods, easy to apply in endemic regions. The aim of this study was to describe the current advances in the development of diagnostic tests based on aptamers in parasitology. For this, articles were selected following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, with specific inclusion and exclusion criteria. The 26 resulting articles deal with the use of aptamers for the detection of six important protozoa that affect human health. This systematic review clearly demonstrates the specificity, sensitivity and selectivity of aptamers and aptasensors, that certainly will soon become standard methods in medical parasitology.
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Affiliation(s)
- Juan David Ospina-Villa
- Instituto Colombiano de Medicina Tropical, Universidad CES, Sabaneta CP 055450, Antioquia, Colombia; (J.D.O.-V.); (M.M.S.-J.)
| | - Alondra Cisneros-Sarabia
- ENMH, Instituto Politécnico Nacional, Guillermo Massieu Helguera 239, Fracc. La Escalera, Ticomán, Del. Gustavo A. Madero, Mexico City CP 07320, Mexico;
| | - Miryan Margot Sánchez-Jiménez
- Instituto Colombiano de Medicina Tropical, Universidad CES, Sabaneta CP 055450, Antioquia, Colombia; (J.D.O.-V.); (M.M.S.-J.)
| | - Laurence A. Marchat
- ENMH, Instituto Politécnico Nacional, Guillermo Massieu Helguera 239, Fracc. La Escalera, Ticomán, Del. Gustavo A. Madero, Mexico City CP 07320, Mexico;
- Correspondence: ; Tel.: +52-55-5729-6300 (ext. 55543)
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13
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Ekrami E, Pouresmaieli M, Barati F, Asghari S, Ziarani FR, Shariati P, Mamoudifard M. Potential Diagnostic Systems for Coronavirus Detection: a Critical Review. Biol Proced Online 2020; 22:21. [PMID: 32884452 PMCID: PMC7462115 DOI: 10.1186/s12575-020-00134-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 08/23/2020] [Indexed: 02/06/2023] Open
Abstract
Abstract Currently there are no effective anti-viral drugs for SARS-CoV-2, so the primary line of defense is to detect infected cases as soon as possible. The high rate of contagion for this virus and the highly nonspecific symptoms of the disease (Coronovirus disease 2019, (Covid-19)) that it causes, such as respiratory symptoms, cough, dyspnea, fever, and viral pneumonia, require the urgent establishment of precise and fast diagnostic tests to verify suspected cases, screen patients, and conduct virus surveillance. Nowadays, several virus detection methods are available for viral diseases, which act on specific properties of each virus or virus family, therefore, further investigations and trials are needed to find a highly efficient and accurate detection method to detect and prevent the outcomes of the disease. Hence, there is an urgent need for more and precise studies in this field. In this review, we discussed the properties of a new generation of coronaviruses (SARS-CoV-2) following routine virus detection methods and proposed new strategies and the use of potential samples for SARS-CoV-2 detection. Graphical Abstract ![]()
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Affiliation(s)
- Elena Ekrami
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Mahdi Pouresmaieli
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Fatemeh Barati
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Sahar Asghari
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Farzad Ramezani Ziarani
- Department of Microbiology, School of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Parvin Shariati
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Matin Mamoudifard
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
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14
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Yu Q, Liu M, Wu S, Wei X, Xiao H, Yi Y, Cheng H, Wang S, Zhang Q, Qin Q, Li P. Specific Aptamer-Based Probe for Analyzing Biomarker MCP Entry Into Singapore Grouper Iridovirus-Infected Host Cells via Clathrin-Mediated Endocytosis. Front Microbiol 2020; 11:1206. [PMID: 32636813 PMCID: PMC7318552 DOI: 10.3389/fmicb.2020.01206] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 05/12/2020] [Indexed: 01/16/2023] Open
Abstract
Biomarkers have important roles in various physiological functions and disease pathogenesis. As a nucleocytoplasmic DNA virus, Singapore grouper iridovirus (SGIV) causes high economic losses in the mariculture industry. Aptamer-Q5-complexed major capsid protein (MCP) in the membrane of SGIV-infected cells can be used as a specific molecular probe to investigate the crucial events of MCP endocytosis into SGIV-infected host cells during viral infection. Chlorpromazine blocks clathrin-mediated endocytosis, and MCP endocytosis into SGIV-infected cells decreased significantly when the cells were pretreated with chlorpromazine. The disruption of cellular cholesterol by methyl-β-cyclodextrin also significantly reduced MCP endocytosis. In contrast, inhibitors of key regulators of caveolae/raft-dependent endocytosis and macropinocytosis, including genistein, Na+/H+ exchanger, p21-activated kinase 1 (PAK1), myosin II, Rac1 GTPase, and protein kinase C (PKC), had no effect on MCP endocytosis. The endocytosis of the biomarker MCP is dependent on low pH and cytoskeletal actin filaments, as shown with various inhibitors (chloroquine, ammonia chloride, cytochalasin D). Therefore, MCP enters SGIV-infected host cells via clathrin-mediated endocytosis, which is dependent on dynamin, cholesterol, low pH, and cytoskeletal actin filaments. This is the first report of a specific aptamer-based probe used to analyze MCP endocytosis into SGIV-infected host cells during viral infection. This method provides a convenient strategy for exploring viral pathogenesis and facilitates the development of diagnostic tools for and therapeutic approaches to viral infection.
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Affiliation(s)
- Qing Yu
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning, China
| | - Mingzhu Liu
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning, China
| | - Siting Wu
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Science, South China Agricultural University, Guangzhou, China.,Guangxi Key Laboratory for Polysaccharide Materials and Modifications, Guangxi Colleges and Universities Key Laboratory of Utilization of Microbial and Botanical Resources, School of Marine Sciences and Biotechnology, Guangxi University for Nationalities, Nanning, China
| | - Xinxian Wei
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Academy of Fishery Sciences, Nanning, China
| | - Hehe Xiao
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning, China
| | - Yi Yi
- Guangxi Key Laboratory of Green Processing of Sugar Resources, College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, China
| | - Hao Cheng
- Guangxi Key Laboratory of Green Processing of Sugar Resources, College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, China
| | - Shaowen Wang
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Science, South China Agricultural University, Guangzhou, China
| | - Qin Zhang
- Guangxi Key Laboratory for Polysaccharide Materials and Modifications, Guangxi Colleges and Universities Key Laboratory of Utilization of Microbial and Botanical Resources, School of Marine Sciences and Biotechnology, Guangxi University for Nationalities, Nanning, China
| | - Qiwei Qin
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Science, South China Agricultural University, Guangzhou, China
| | - Pengfei Li
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning, China
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YU Q, LIU MZ, XIAO HH, YI Y, CHENG H, Putra DF, LI SQ, LI PF. Selection and Characterization of Aptamers for Specific Detection of Iridovirus Disease in Cultured Hybrid Grouper (Epinephelus Fuscoguttatus♀ × E. Lanceolatus♂). CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2020. [DOI: 10.1016/s1872-2040(20)60021-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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16
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Liu M, Yu Q, Xiao H, Yi Y, Cheng H, Putra DF, Huang Y, Zhang Q, Li P. Antiviral activity of Illicium verum Hook. f. extracts against grouper iridovirus infection. JOURNAL OF FISH DISEASES 2020; 43:531-540. [PMID: 32100315 DOI: 10.1111/jfd.13146] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 01/14/2020] [Indexed: 06/10/2023]
Abstract
Grouper iridovirus causes high mortality rates in cultured groupers, and effective treatment for grouper iridovirus infection is urgently required. Illicium verum Hook. f. is a well-known medicinal plant with a variety of biological activities. The aim of this study was to analyse the use of I. verum extracts to treat grouper iridovirus infection. The safe working concentration of each I. verum extract was identified both in vitro and in vivo as follows: I. verum aqueous extract (IVAE) ≤ 500 μg/ml; I. verum ethanol extract (IVEE) ≤ 250 μg/ml; shikimic acid (SKA) ≤ 250 μg/ml; trans-anethole (TAT) ≤ 800 μg/ml; 3,4-dihydroxybenzoic acid (DDBA) ≤ 400 μg/ml; and quercetin (QCE) ≤ 50 μg/ml. The inhibitory activity of each I. verum extract against grouper iridovirus infection was analysed using aptamer (Q2)-based fluorescent molecular probe (Q2-AFMP) and RT-qPCR. All of the I. verum extracts displayed dose-dependent antiviral activities against grouper iridovirus. Based on the achieved per cent inhibition, IVAE, IVEE, DDBA and QCE were associated with the greatest antiviral activity (all > 90%). Together, our results indicate that I. verum extracts have effective antiviral properties, making it an excellent potential source material for the development of effective treatment for grouper iridovirus infection.
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Affiliation(s)
- Mingzhu Liu
- Guangxi Key Laboratory of Green Processing of Sugar Resources, College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, China
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning, China
| | - Qing Yu
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning, China
- Guangxi Key Laboratory for Polysaccharide Materials and Modifications, Guangxi Colleges and Universities Key Laboratory of Utilization of Microbial and Botanical Resources, School of Marine Science and Biotechnology, Guangxi University for Nationalities, Nanning, China
| | - Hehe Xiao
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning, China
| | - Yi Yi
- Guangxi Key Laboratory of Green Processing of Sugar Resources, College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, China
| | - Hao Cheng
- Guangxi Key Laboratory of Green Processing of Sugar Resources, College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, China
| | | | - Yaming Huang
- Guangxi Key Laboratory for Polysaccharide Materials and Modifications, Guangxi Colleges and Universities Key Laboratory of Utilization of Microbial and Botanical Resources, School of Marine Science and Biotechnology, Guangxi University for Nationalities, Nanning, China
| | - Qin Zhang
- Guangxi Key Laboratory for Polysaccharide Materials and Modifications, Guangxi Colleges and Universities Key Laboratory of Utilization of Microbial and Botanical Resources, School of Marine Science and Biotechnology, Guangxi University for Nationalities, Nanning, China
| | - Pengfei Li
- Guangxi Key Laboratory of Green Processing of Sugar Resources, College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, China
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning, China
- Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity Conservation, College of Marine Sciences, Beibu Gulf University, Qinzhou, China
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Zhou L, Wang S, Yu Q, Wei S, Liu M, Wei J, Huang Y, Huang X, Li P, Qin Q. Characterization of Novel Aptamers Specifically Directed to Red-Spotted Grouper Nervous Necrosis Virus (RGNNV)-Infected Cells for Mediating Targeted siRNA Delivery. Front Microbiol 2020; 11:660. [PMID: 32425897 PMCID: PMC7203557 DOI: 10.3389/fmicb.2020.00660] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 03/23/2020] [Indexed: 12/29/2022] Open
Abstract
Nervous necrosis virus (NNV) causes viral nervous necrosis, the most devastating disease in more than 50 fish species worldwide, with massive mortality rates up to 100%, resulting in great economic losses to mariculture. However, few methods are available for the efficient diagnosis and treatment of viral nervous necrosis. Aptamers are molecular recognition ligands characterized by their remarkably high specificity and affinity, great stability, and ease of synthesis, and have been widely studied in application of disease diagnosis and therapies. In this study, we generated three aptamers against red-spotted grouper nervous necrosis virus (RGNNV)-infected grouper brain (GB) cells using the Cell-SELEX (cell based-systematic evolution of ligands by exponential enrichment) technology. The selected aptamers formed stable stem-loop structures, and could specifically recognize RGNNV-infected GB cells, with calculated dissociation constants (Kd) of 27.96, 29.3, and 59.5 nM for aptamers GBN2, GBN10, and GBN34, respectively. They also recognized RGNNV-infected brain tissues. The three aptamers were non-toxic and showed antiviral activities both in vitro and in vivo. Fluorescence microscopy and flow cytometry also demonstrated that aptamer GBN34 could be efficiently and specifically internalized into RGNNV-infected GB cells. The targeted cellular delivery of aptamer-small interfering RNA (siRNA) conjugates remarkably inhibited RGNNV infection in GB cells. The efficiency of the aptamer-based targeted delivery system was about 75% reduction in infection after 48 h, which was similar to that of transfection. These aptamers have great potential utility in the rapid diagnosis and inhibition of RGNNV infection in mariculture.
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Affiliation(s)
- Lingli Zhou
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Shaowen Wang
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Qing Yu
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning, China
| | - Shina Wei
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Mingzhu Liu
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, China
| | - Jingguang Wei
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Youhua Huang
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Xiaohong Huang
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Pengfei Li
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning, China
| | - Qiwei Qin
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, China
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18
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Xiao H, Liu M, Li S, Shi D, Zhu D, Ke K, Xu Y, Dong D, Zhu L, Yu Q, Li P. Isolation and Characterization of a Ranavirus Associated with Disease Outbreaks in Cultured Hybrid Grouper (♀ Tiger Grouper Epinephelus fuscoguttatus × ♂ Giant Grouper E. lanceolatus) in Guangxi, China. JOURNAL OF AQUATIC ANIMAL HEALTH 2019; 31:364-370. [PMID: 31519049 DOI: 10.1002/aah.10090] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 09/06/2019] [Indexed: 06/10/2023]
Abstract
An outbreak of suspected iridovirus disease in cultured hybrid grouper (♀Tiger Grouper Epinephelus fuscoguttatus × ♂ Giant Grouper Epinephelus lanceolatus) occurred in the Guangxi Province in July, 2018. In this study, grouper iridovirus Guangxi (SGIV-Gx) was isolated from diseased hybrid grouper that were collected from Guangxi. Cytopathic effects were observed and identified in grouper spleen cells that were incubated with diseased tissue homogenates after 24 h, and the effects increased at 48 h postinfection. The transmission electron microscopy results showed that viral particles that were about 200 nm in diameter with hexagonal profiles were present in the cell cytoplasm of suspected virus-infected cells. The presence of SGIV-Gx (accession number: MK107821) was identified by polymerase chain reaction (PCR) and amplicon sequencing, which showed that this strain was most closely related to Singapore grouper iridovirus (AY521625.1). The detection of SGIV-Gx infection was further supported by novel aptamer (Q2c)-based detection technology. The effects of temperature and pH on viral infectivity were analyzed by using reverse transcription quantitative real-time polymerase chain reaction (RT-qPCR) and cell culture. The results indicated that SGIV-Gx was resistant to exposure to pH levels 5, 7, and 7.5 for 1 h, but its infectivity was remarkably lower at pH levels 3 and 10 after 1 h. The analyses showed that SGIV-Gx was stable for 1 h at 4°C and 25°C but was inactivated after 1 h at 40, 50, and 60°C.
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Affiliation(s)
- Hehe Xiao
- College of Life Science, Henan Normal University, Xinxiang, China
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, China
| | - Mingzhu Liu
- Guangxi Key Laboratory for Marine Biotechnology, Guangxi Institute of Oceanography, Guangxi Academy of Sciences, Beihai, China
- Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity Conservation, College of Marine Sciences, Beibu Gulf University, Qinzhou, China
| | - Siqiao Li
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, China
| | - Deqiang Shi
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, China
| | - Donglin Zhu
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, China
| | - Ke Ke
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, China
| | - Youhou Xu
- Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity Conservation, College of Marine Sciences, Beibu Gulf University, Qinzhou, China
| | - Dexin Dong
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, China
| | - Libo Zhu
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, China
| | - Qing Yu
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, China
| | - Pengfei Li
- Guangxi Key Laboratory for Marine Biotechnology, Guangxi Institute of Oceanography, Guangxi Academy of Sciences, Beihai, China
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Yu Q, Liu M, Wei S, Xiao H, Wu S, Ke K, Huang X, Qin Q, Li P. Identification of Major Capsid Protein as a Potential Biomarker of Grouper Iridovirus-Infected Cells Using Aptamers Selected by SELEX. Front Microbiol 2019; 10:2684. [PMID: 31849862 PMCID: PMC6901930 DOI: 10.3389/fmicb.2019.02684] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 11/05/2019] [Indexed: 01/31/2023] Open
Abstract
Biomarkers have important roles in disease pathogenesis, and serve as important disease indicators for developing novel diagnostic and therapeutic approaches. Grouper iridovirus is a nucleocytoplasmic DNA virus, which not only causes great economic losses in mariculture but also seriously threatens the global biodiversity. However, a lack of biomarkers has limited the progress in clarifying iridovirus pathogenesis. Here, we report novel molecular probes, aptamers, for specific identification of biomarkers in grouper iridovirus-infected cells. Aptamers are selected by SELEX, which is a completely different approach from conventional antibody-based methods for biomarkers discovery. Aptamer-based technology is the unique efficient selection for cell-specific target molecules, and helps find out new biomarkers without the knowledge of characteristics of proteins expressed on virus-infected cell surface. With the implementation of a two-step strategy (aptamer selection and biomarker discovery), combined with mass spectrometry, grouper iridovirus major capsid protein was ultimately identified as a potential biomarker of aptamer Q5 for grouper iridovirus infection. The specific interactions of aptamer Q5 and MCP were experimentally validated by several assays, including EMSA, co-localization of fluorescence by LSCM, binding competition tests, and siRNA silencing tests by flow cytometry. This aptamer-based method for biomarkers discovery developed with grouper iridovirus-infected cells could be applicable to other types of virus infection, markedly improve our studies of biomarker discovery and virus pathogenesis, and further facilitate the development of diagnostic tools and therapeutic approaches to treat virus infection.
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Affiliation(s)
- Qing Yu
- Guangxi Key Laboratory for Marine Biotechnology, Guangxi Institute of Oceanography, Guangxi Academy of Sciences, Nanning, China
| | - Mingzhu Liu
- College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Shina Wei
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, China
| | - Hehe Xiao
- College of Life Science, Henan Normal University, Xinxiang, China
| | - Siting Wu
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, China
| | - Ke Ke
- Guangxi Key Laboratory for Marine Biotechnology, Guangxi Institute of Oceanography, Guangxi Academy of Sciences, Nanning, China
| | - Xiaohong Huang
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, China
| | - Qiwei Qin
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, China
| | - Pengfei Li
- Guangxi Key Laboratory for Marine Biotechnology, Guangxi Institute of Oceanography, Guangxi Academy of Sciences, Nanning, China.,College of Marine Sciences, South China Agricultural University, Guangzhou, China
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20
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Yu Q, Liu M, Xiao H, Wu S, Qin X, Ke K, Li S, Mi H, Shi D, Li P. Development of novel aptamer-based enzyme-linked apta-sorbent assay (ELASA) for rapid detection of mariculture pathogen Vibrio alginolyticus. JOURNAL OF FISH DISEASES 2019; 42:1523-1529. [PMID: 31448425 DOI: 10.1111/jfd.13066] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 07/13/2019] [Accepted: 07/15/2019] [Indexed: 06/10/2023]
Abstract
As the major opportunistic pathogen to both marine animals and humans, Vibrio alginolyticus (V. alginolyticus) has caused heavy economic losses to mariculture. ssDNA aptamer VA2 targeting live V. alginolyticus was generated by systematic evolution of ligands by exponential enrichment (SELEX) technology in our previous study. In this study, we first developed aptamer (VA2)-based enzyme-linked apta-sorbent assay (VA2-ELASA) for rapid detection of mariculture pathogen V. alginolyticus. The VA2-ELASA could achieve the rapid detection for V. alginolyticus infection with high specificity and sensitivity. The VA2-ELASA could specifically identify V. alginolyticus, but not other non-target bacterial strains. VA2-ELASA could detect V. alginolyticus at the concentration of 5 × 104 /ml, the incubation time short to 1 min and the incubation temperature as high as 45°C, which proved sensitivity and stability of the novel VA2-ELASA in this study. It took less than one hour to accomplish the detection process by VA2-ELASA. The characteristics of specificity, sensitivity and easy operation make VA2-ELASA a novel useful technology for the rapid diagnosis of pathogen V. alginolyticus in mariculture.
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Affiliation(s)
- Qing Yu
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Academy of Sciences, Nanning, China
| | - Mingzhu Liu
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Academy of Sciences, Nanning, China
| | - Hehe Xiao
- College of Life Science, Henan Normal University, Xinxiang, China
- Guangxi Key Lab for Marine Biotechnology, Beihai, China
| | - Siting Wu
- Guangxi Key Lab for Marine Biotechnology, Beihai, China
- College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Xianling Qin
- Guangxi Key Laboratory of Marine Environmental Science, Nanning, China
| | - Ke Ke
- Guangxi Key Laboratory of Marine Environmental Science, Nanning, China
| | - Siqiao Li
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Academy of Sciences, Nanning, China
| | - Huizhi Mi
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Academy of Sciences, Nanning, China
| | - Deqiang Shi
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Academy of Sciences, Nanning, China
| | - Pengfei Li
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Academy of Sciences, Nanning, China
- Guangxi Key Lab for Marine Biotechnology, Beihai, China
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21
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Zou X, Wu J, Gu J, Shen L, Mao L. Application of Aptamers in Virus Detection and Antiviral Therapy. Front Microbiol 2019; 10:1462. [PMID: 31333603 PMCID: PMC6618307 DOI: 10.3389/fmicb.2019.01462] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 06/11/2019] [Indexed: 12/19/2022] Open
Abstract
Viral infections can cause serious diseases for humans and animals. Accurate and early detection of viruses is often crucial for clinical diagnosis and therapy. Aptamers are mostly single-stranded nucleotide sequences that are artificially synthesized by an in vitro technology known as the Systematic Evolution of Ligands by Exponential Enrichment (SELEX). Similar to antibodies, aptamers bind specifically to their targets. However, compared with antibody, aptamers are easy to synthesize and modify and can bind to a broad range of targets. Thus, aptamers are promising for detecting viruses and treating viral infections. In this review, we briefly introduce aptamer-based biosensors (aptasensors) and describe their applications in rapid detection of viruses and as antiviral agents in treating infections. We summarize available data about the use of aptamers to detect and inhibit viruses. Furthermore, for the first time, we list aptamers specific to different viruses that have been screened out but have not yet been used for detecting viruses or treating viral infections. Finally, we analyze barriers and developing perspectives in the application of aptamer-based virus detection and therapeutics.
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Affiliation(s)
- Xinran Zou
- Department of Laboratory Medicine, The Affiliated People's Hospital, Jiangsu University, Zhenjiang, China.,Jiangsu Key Laboratory of Laboratory Medicine, Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Jing Wu
- Department of Laboratory Medicine, The Affiliated People's Hospital, Jiangsu University, Zhenjiang, China.,Jiangsu Key Laboratory of Laboratory Medicine, Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Jiaqi Gu
- Department of Laboratory Medicine, The Affiliated People's Hospital, Jiangsu University, Zhenjiang, China.,Jiangsu Key Laboratory of Laboratory Medicine, Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Li Shen
- Zhenjiang Center for Disease Control and Prevention, Jiangsu, China
| | - Lingxiang Mao
- Department of Laboratory Medicine, The Affiliated People's Hospital, Jiangsu University, Zhenjiang, China
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22
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Yu Q, Liu M, Su H, Xiao H, Wu S, Qin X, Li S, Mi H, Lu Z, Shi D, Li P. Selection and characterization of ssDNA aptamers specifically recognizing pathogenic Vibrio alginolyticus. JOURNAL OF FISH DISEASES 2019; 42:851-858. [PMID: 30859598 DOI: 10.1111/jfd.12985] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 02/12/2019] [Accepted: 02/13/2019] [Indexed: 06/09/2023]
Abstract
Vibrio alginolyticus (V. alginolyticus) is a major opportunistic pathogen to both marine animals and humans, which has also caused heavy economic losses to mariculture. The aim of this study was to develop highly specific aptamers for V. alginolyticus. Single-stranded DNA (ssDNA) aptamers with high binding affinity to viable V. alginolyticus were generated by Systematic Evolution of Ligands by Exponential Enrichment (SELEX) and identified by flow cytometric analysis in this study. The selected aptamers showed high specificity for V. alginolyticus and low apparent binding for other bacteria. The aptamers formed distinct stem-loop structures, which could form the basis of aptamers' specific binding to the target V. alginolyticus. Aptamer VA2 and VA8 showed particularly high binding affinity constant (Kd) of 14.31 ± 4.26 and 90.00 ± 13.51 nM, respectively. The aptamers produced no cytotoxic effects in vitro and in vivo. ssDNA aptamers were successfully selected against the viable bacteria pathogen V. alginolyticus by SELEX. The aptamers selected in this study could be not only applied as specific chemical molecular probes for studying V. alginolyticus pathogenesis to Trachinotus ovatus, but also developing rapid convenient diagnosis assay for V. alginolyticus infection, even when applied to the complex sample matrix, such as food and environment samples.
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Affiliation(s)
- Qing Yu
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, China
| | - Mingzhu Liu
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, China
| | - Hongfei Su
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, College of Marine Sciences, Guangxi University, Nanning, China
| | - Hehe Xiao
- College of Life Science, Henan Normal University, Xinxiang, China
| | - Siting Wu
- Guangxi Key Lab for Marine Biotechnology, Guangxi Institute of Oceanography, Beihai, China
| | - Xianling Qin
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, China
| | - Siqiao Li
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Academy of Sciences, Nanning, China
| | - Huizhi Mi
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Academy of Sciences, Nanning, China
| | - Zijun Lu
- College of Marine Sciences, Guangxi University for Nationalities, Nanning, China
| | - Deqiang Shi
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, China
| | - Pengfei Li
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, China
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23
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Chong C, Low C. Synthetic antibody: Prospects in aquaculture biosecurity. FISH & SHELLFISH IMMUNOLOGY 2019; 86:361-367. [PMID: 30502461 DOI: 10.1016/j.fsi.2018.11.060] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 10/12/2018] [Accepted: 11/27/2018] [Indexed: 06/09/2023]
Abstract
The emerging technology of aptamers that is also known as synthetic antibodies is rivalling antibodies research in the recent years. The unique yet important features of aptamers are advancing antibodies in diverse applications, which include disease diagnosis, prophylactic and therapeutic. The versatility of aptamer has further extended its application to function as gene expression modulator, known as synthetic riboswitches. This report reviewed and discussed the applications of aptamers technology in the biosecurity of aquaculture, the promising developments in biosensor detection for disease diagnosis as well as prophylactic and therapeutic measurements. The application of aptamers technology in immunophenotyping study of aquatic animal is highlighted. Lastly, the future perspective of aptamers in the management of aquatic animal health is discussed, special emphasis on the potential application of aptamers as synthetic riboswitches to enhance host immunity, as well as the growth performance.
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Affiliation(s)
- ChouMin Chong
- Laboratory of Marine Biotechnology, Institute of Bioscience, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
| | - ChenFei Low
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, 43600, UKM Bangi, Selangor, Malaysia.
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24
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Letchumanan I, Gopinath SCB, Md Arshad MK, Anbu P, Lakshmipriya T. Gold nano-urchin integrated label-free amperometric aptasensing human blood clotting factor IX: A prognosticative approach for "Royal disease". Biosens Bioelectron 2019; 131:128-135. [PMID: 30826647 DOI: 10.1016/j.bios.2019.02.006] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 02/06/2019] [Indexed: 12/16/2022]
Abstract
This article is clearly presenting the development of a biosensor for human factor IX (FIX) to diagnose the blood clotting deficiency, a so-called 'Royal disease' using an interdigitated electrode (IDE) with the zinc oxide surface modification. Gold nano-urchins (GNUs) with 60 nm in diameter was integrated into a streptavidin-biotinylated aptamer strategy to enhance the active surface area. Two different comparative studies have been done to validate the system to be practiced in the current work holds with a higher capability for the high-performance sense. Whereby, the presence and absence of GNUs in the aptasensing system for FIX interaction were investigated using the amperometric measurement, using a linear sweep voltage of 0-2 V at 0.01 V step voltage. The detection limit was 6 pM based on 3σ calculation when GNUs integrated aptamer assay was utilized for FIX detection, which shows 8 folds sensitivity enhancement comparing the condition in the absence of GNU and 50 folds higher than sensitive radio-isotope and surface plasmon resonance assays. Albeit, the surface and molecular characterizations were well demonstrated by scanning electron microscopy, atomic force microscopy, 3D nano-profilometry and further supports were rendered by UV-Vis spectroscopy and Enzyme-linked apta-sorbent assay (ELASA). Furthermore, the spiking experiment was done by FIX-spikes in human blood serum in order to demonstrate the stability with a higher non-fouling.
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Affiliation(s)
- Iswary Letchumanan
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis, Malaysia
| | - Subash C B Gopinath
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis, Malaysia; School of Bioprocess Engineering, Universiti Malaysia Perlis, 02600 Arau, Perlis, Malaysia.
| | - M K Md Arshad
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis, Malaysia; School of Microelectronic Engineering, Universiti Malaysia Perlis, Pauh Putra, Arau 02600, Perlis, Malaysia
| | - Periasamy Anbu
- Department of Biological Engineering, College of Engineering, Inha University, Incheon 402-751, Republic of Korea
| | - Thangavel Lakshmipriya
- Centre of Innovative Nanostructure & Nanodevices, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak Darul Ridzuan, Malaysia
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25
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Yu Q, Liu M, Wei S, Wu S, Xiao H, Qin X, Su H, Li P. Characterization of ssDNA aptamers specifically directed against Trachinotus ovatus NNV (GTONNV)-infected cells with antiviral activities. J Gen Virol 2019; 100:380-391. [PMID: 30698517 DOI: 10.1099/jgv.0.001226] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Nervous necrosis virus (NNV), is one of the most fatal viruses in marine fish aquaculture, and is capable of infecting over 50 different fish species. Trachinotus ovatus NNV (GTONNV) was isolated from diseased golden pompano. This T. ovatus strain was isolated from Guangxi, China. Single-stranded DNA (ssDNA) aptamers with high specificity for GTONNV-infected T. ovatus cerebellum cells (TOCC) were produced by Systematic Evolution of Ligands by Exponential Enrichment (SELEX). The characterization of these aptamers was performed using flow cytometry and laser scanning confocal microscopy. The selected aptamers showed significant specificity for GTONNV-infected cells. Based on MFOLD prediction, aptamers formed distinct stem-loop structures that could form the basis for the aptamers' specific binding to their cellular targets. Protease treatment results revealed that the target molecules for aptamers TNA1, TNA4 and TNA19 within GTONNV-infected cells may be membrane proteins that were trypsin-sensitive. Specific endocytosis of aptamer TNA1, TNA4 and TNA19 into GTONNV-infected cells was also shown. The selected aptamers demonstrated antiviral effects against GTONNV both in vitro and in vivo. This is the first time that aptamers targeting GTONNV-infected T. ovatus cells have been selected and characterized. These aptamers hold promise as rapid diagnostic reagents or targeted therapeutic drugs against GTONNV.
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Affiliation(s)
- Qing Yu
- 1Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynethesis Chemistry, Guangxi Academy of Sciences, Nanning, PR China
| | - Mingzhu Liu
- 1Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynethesis Chemistry, Guangxi Academy of Sciences, Nanning, PR China
| | - Shina Wei
- 2College of Marine Sciences, South China Agricultural University, Guangzhou, PR China
| | - Siting Wu
- 1Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynethesis Chemistry, Guangxi Academy of Sciences, Nanning, PR China.,3Guangxi Key Lab for Marine Biotechnology, Guangxi Institute of Oceanography, Beihai, PR China
| | - Hehe Xiao
- 4College of Life Science, Henan Normal University, Xinxiang, PR China
| | - Xianling Qin
- 5Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, PR China
| | - Hongfei Su
- 6Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, College of Marine Sciences, Guangxi University, Nanning, PR China
| | - Pengfei Li
- 1Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynethesis Chemistry, Guangxi Academy of Sciences, Nanning, PR China
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26
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Low CF, Md Yusoff MR, Kuppusamy G, Ahmad Nadzri NF. Molecular biology of Macrobrachium rosenbergii nodavirus infection in giant freshwater prawn. JOURNAL OF FISH DISEASES 2018; 41:1771-1781. [PMID: 30270534 DOI: 10.1111/jfd.12895] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 08/24/2018] [Accepted: 08/25/2018] [Indexed: 06/08/2023]
Abstract
Macrobrachium rosenbergii nodavirus (MrNV) has been threatening the giant freshwater prawn aquaculture since 1997, causing white tail disease in the prawn species that leads to 100% lethality of the infected postlarvae. Comprehension of the viral infectivity and pathogenesis at molecular biology level has recently resolved the viral capsid protein and evidenced the significant difference in the viral structural protein compared to other nodaviruses that infect fish and insect. Cumulative researches have remarked the proposal to assert MrNV as a member of new genus, gammanodavirus to the Nodaviridae family. The significance of molecular biology in MrNV infection is being highlighted in this current review, revolving the viral life cycle from virus binding and entry into host, virus replication in host cell, to virus assembly and release. The current review also highlights the emerging aptamers technology that is also known as synthetic antibody, its application in disease diagnosis, and its prophylactic and therapeutic properties. The future perspective of synthetic virology technology in understanding viral pathogenesis, as well as its potential in viral vaccine development, is also discussed.
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Affiliation(s)
- Chen-Fei Low
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, UKM, Bangi, Selangor, Malaysia
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27
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Li P, Yu Q, Zhou L, Dong D, Wei S, Ya H, Chen B, Qin Q. Probing and characterizing the high specific sequences of ssDNA aptamer against SGIV-infected cells. Virus Res 2018; 246:46-54. [PMID: 29341876 DOI: 10.1016/j.virusres.2018.01.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Revised: 12/07/2017] [Accepted: 01/12/2018] [Indexed: 12/15/2022]
Abstract
As the major viral pathogen of grouper aquaculture, Singapore grouper iridovirus (SGIV) has caused great economic losses in China and Southeast Asia. In the previous study, we have generated highly specific ssDNA aptamers against SGIV-infected grouper spleen cells (GS) by Systematic Evolution of Ligands by Exponential Enrichment technology (SELEX), in which Q2 had the highest binding affinity of 16.43 nM. In this study, we would try to identify the specific sequences in the aptamer Q2 that exhibited the high binding affinity to SGIV-infected cells by truncating the original Q2 into some different specific segments. We first evaluated the specificity and binding affinity of these truncated aptamers to SGIV-infected cells by flow cytometry, fluorescent imaging of cells and aptamer-based enzyme-linked apta-sorbent assay (ELASA). We then performed cytotoxicity analysis, assessment of the inhibitory effects upon SGIV infection and the celluar internalization kinetics of each truncated aptamer. Compared to the initial Q2, one of the truncated aptamer Q2-C5 showed a 3-fold increase in the binding affinity for SGIV-infected cells, and held more effective inhibitory effects, higher internalization kinetics and stability. Hence, the aptamer's truncated methods could be applied in the research of identifying aptamer's key sequences. The shorter, structure optimizing aptamer showed more excellent performance over the originally selected aptamer, which could potentially be applied in developing commercial detection probes for the early and rapid diagnosis of SGIV infection, and highly specific therapeutic drugs against SGIV infection.
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Affiliation(s)
- Pengfei Li
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning 530007, China
| | - Qing Yu
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning 530007, China
| | - Lingli Zhou
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha 410081, China
| | - Dexin Dong
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning 530007, China
| | - Shina Wei
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Hanzheng Ya
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning 530007, China
| | - Bo Chen
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning 530007, China
| | - Qiwei Qin
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China.
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