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Jain R, Gupta G, Mitra DK, Guleria R. Diagnosis of extra pulmonary tuberculosis: An update on novel diagnostic approaches. Respir Med 2024; 225:107601. [PMID: 38513873 DOI: 10.1016/j.rmed.2024.107601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 02/29/2024] [Accepted: 03/12/2024] [Indexed: 03/23/2024]
Abstract
Tuberculosis (TB) remains a major global public health problem worldwide. Though Pulmonary TB (PTB) is mostly discussed, one in five cases of TB present are extrapulmonary TB (EPTB) that manifests conspicuous diagnostic and management challenges with respect to the site of infection. The diagnosis of EPTB is often delayed or even missed due to insidious clinical presentation, pauci-bacillary nature of the disease, and lack of laboratory facilities in the resource limited settings. Culture, the classical gold standard for the diagnosis of tuberculosis, suffers from increased technical and logistical constraints in EPTB cases. Other than culture, several other tests are available but their feasibility and effciacy for the detection of EPTB is still the matter of interest. We need more specific and precise test/s for the various forms of EPTB diagnosis which can easily be applied in the routine TB control program is required. A test that can contribute remarkably towards improving EPTB case detection reducing the morbidity and mortality is the utmost requirement. In this review we described the scenario of molecular and other noval methods available for laboratory diagnosis of EPTB, and also discussed the challenges linked with each diagnostic method. This review will make the readers aware of new emerging diagnostic techniques in the field of EPTB diagnosis. They can make an informed decision to choose the appropriate one according to the test availability, their clinical settings and financial considerations.
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Affiliation(s)
- Rashi Jain
- Department of Pulmonary Critical Care and Sleep Medicine, All India Institute of Medical Sciences, New Delhi, 110029, India; Department of Transplant Immunology and Immunogenetics, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Gopika Gupta
- Department of Transplant Immunology and Immunogenetics, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - D K Mitra
- Department of Transplant Immunology and Immunogenetics, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Randeep Guleria
- Department of Pulmonary Critical Care and Sleep Medicine, All India Institute of Medical Sciences, New Delhi, 110029, India; Institute of Internal Medicine & Respiratory and Sleep Medicine, Medanta-The Medicity, Gurugram, Haryana, 122033, India.
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He X, Wang S, Ma C, Xu GR, Ma J, Xie H, Zhu W, Liu H, Wang L, Wang Y. Utilizing Electrochemical Biosensors as an Innovative Platform for the Rapid and On-Site Detection of Animal Viruses. Animals (Basel) 2023; 13:3141. [PMID: 37835747 PMCID: PMC10571726 DOI: 10.3390/ani13193141] [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: 08/11/2023] [Revised: 09/19/2023] [Accepted: 10/05/2023] [Indexed: 10/15/2023] Open
Abstract
Animal viruses are a significant threat to animal health and are easily spread across the globe with the rise of globalization. The limitations in diagnosing and treating animal virus infections have made the transmission of diseases and animal deaths unpredictable. Therefore, early diagnosis of animal virus infections is crucial to prevent the spread of diseases and reduce economic losses. To address the need for rapid diagnosis, electrochemical sensors have emerged as promising tools. Electrochemical methods present numerous benefits, including heightened sensitivity and selectivity, affordability, ease of use, portability, and rapid analysis, making them suitable for real-time virus detection. This paper focuses on the construction of electrochemical biosensors, as well as promising biosensor models, and expounds its advantages in virus detection, which is a promising research direction.
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Affiliation(s)
- Xun He
- Henan Institute of Science and Technology, Xinxiang 453003, China; (X.H.); (S.W.); (C.M.); (G.-R.X.); (J.M.); (H.X.); (W.Z.)
| | - Shan Wang
- Henan Institute of Science and Technology, Xinxiang 453003, China; (X.H.); (S.W.); (C.M.); (G.-R.X.); (J.M.); (H.X.); (W.Z.)
| | - Caoyuan Ma
- Henan Institute of Science and Technology, Xinxiang 453003, China; (X.H.); (S.W.); (C.M.); (G.-R.X.); (J.M.); (H.X.); (W.Z.)
| | - Guang-Ri Xu
- Henan Institute of Science and Technology, Xinxiang 453003, China; (X.H.); (S.W.); (C.M.); (G.-R.X.); (J.M.); (H.X.); (W.Z.)
| | - Jinyou Ma
- Henan Institute of Science and Technology, Xinxiang 453003, China; (X.H.); (S.W.); (C.M.); (G.-R.X.); (J.M.); (H.X.); (W.Z.)
| | - Hongbing Xie
- Henan Institute of Science and Technology, Xinxiang 453003, China; (X.H.); (S.W.); (C.M.); (G.-R.X.); (J.M.); (H.X.); (W.Z.)
| | - Wei Zhu
- Henan Institute of Science and Technology, Xinxiang 453003, China; (X.H.); (S.W.); (C.M.); (G.-R.X.); (J.M.); (H.X.); (W.Z.)
| | - Hongyang Liu
- Shuangliao Animal Disease Control Center, Siping 136400, China;
| | - Lei Wang
- Henan Institute of Science and Technology, Xinxiang 453003, China; (X.H.); (S.W.); (C.M.); (G.-R.X.); (J.M.); (H.X.); (W.Z.)
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou 450046, China
| | - Yimin Wang
- Henan Institute of Science and Technology, Xinxiang 453003, China; (X.H.); (S.W.); (C.M.); (G.-R.X.); (J.M.); (H.X.); (W.Z.)
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou 450046, China
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Bethu R, Mittal HG, Sharma TK, Shulania A, Sharma N, Rangarajan S, Jain P. Rapid diagnosis of TB using Aptamer-based assays for Mycobacterium tuberculosis antigens in children and adolescents. Lung India 2023; 40:434-439. [PMID: 37787357 PMCID: PMC10553784 DOI: 10.4103/lungindia.lungindia_295_23] [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: 06/08/2023] [Accepted: 07/06/2023] [Indexed: 10/04/2023] Open
Abstract
Background Despite advances establishing microbiological evidence of tuberculosis (TB) is still a concern in children due to the limitation of availability of sample and predominance of extrapulmonary TB, there is unmet need for diagnostic tests which are low cost, rapid and sensitive and specific. Methods This study evaluated the utility of aptamer-based assay for detecting mycobacterium tuberculosis antigens HspX and MPT 64 in rapid diagnosis of TB in children up to 18 years of age in a tertiary medical college. A total of 100 children were sequentially enrolled with presumptive pulmonary (n = 52 and extrapulmonary n = 48) TB based on clinico-radiological characteristics. The samples were evaluated with ALISA technique for TB antigens and compared with the results of ZN microscopy, GeneXpert and mycobacterial culture MGIT. Results The enrolled children had mean age (11.7 + 4.4 years) with both pulmonary (n = 52) and extrapulmonary TB (n = 48). Our study results concluded poor results of smears (11% positivity, sensitivity: 17.7%, NPV: 42.7%) and better of GeneXpert (positivity: 42%, sensitivity of 67.4%, NPV: 65.5%) and culture (positivity 57%, sensitivity 91.9%, NPV 88.3%). HspX antigen by ALISA had comparable results (positivity: 49%, sensitivity: 62.9%; NPV: 54.9%). MPT 64 antigen by ALISA also had similar results (positivity: 45%, sensitivity: 58% and NPV 52, 3%). Sensitivity and specificity were higher in pulmonary TB compared to EPTB for both antigens. HspX antigen assay by ALISA and MPT 64 ALISA over existing microbiological diagnostic methods had additional of 13%. Conclusion ALISA technique for mycobacterium antigens HspX and MPT 64 was rapid, low-cost test (1-3$/test) high sensitivity and specificity and comparable to currently available methods.
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Affiliation(s)
- Rajesh Bethu
- Department of Pediatrics, Division of Pediatric Pulmonology, ABVIMS and RMLH, New Delhi, India
| | - Hema Gupta Mittal
- Department of Pediatrics, Division of Pediatric Pulmonology, ABVIMS and RMLH, New Delhi, India
| | - Tarun K. Sharma
- Department of Medical Biotechnology, Gujarat Biotechnology University, Gandhinagar, Gujarat, India
| | - Anuradha Shulania
- Department of Microbiology, ABVIMS and Dr. RML Hospital, New Delhi, India
| | - Neera Sharma
- Department of Biochemistry, ABVIMS and Dr. RML Hospital, New Delhi, India
| | - Shmitha Rangarajan
- Department of Pediatrics, Division of Pediatric Pulmonology, ABVIMS and RMLH, New Delhi, India
| | - Prerna Jain
- Department of Pediatrics, Division of Pediatric Pulmonology, ABVIMS and RMLH, New Delhi, India
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Bioanalytical methods encompassing label-free and labeled tuberculosis aptasensors: A review. Anal Chim Acta 2022; 1234:340326. [DOI: 10.1016/j.aca.2022.340326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 08/12/2022] [Accepted: 08/24/2022] [Indexed: 11/22/2022]
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Kumari P, Dhiman A, Lavania S, Sharma P, Rath D, Anthwal D, Gupta RK, Kochar A, Sharma N, Gadpayle A, Taneja R, Sharma L, Haldar S, Sharma TK, Tyagi JS. Assessment of DNA aptamers targeting GlcB and HspX antigens for application in the diagnosis of abdominal tuberculosis. Tuberculosis (Edinb) 2022; 134:102206. [DOI: 10.1016/j.tube.2022.102206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 03/31/2022] [Accepted: 04/03/2022] [Indexed: 02/07/2023]
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Chen XF, Zhao X, Yang Z. Aptasensors for the detection of infectious pathogens: design strategies and point-of-care testing. Mikrochim Acta 2022; 189:443. [PMID: 36350388 PMCID: PMC9643942 DOI: 10.1007/s00604-022-05533-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 10/10/2022] [Indexed: 11/11/2022]
Abstract
The epidemic of infectious diseases caused by contagious pathogens is a life-threatening hazard to the entire human population worldwide. A timely and accurate diagnosis is the critical link in the fight against infectious diseases. Aptamer-based biosensors, the so-called aptasensors, employ nucleic acid aptamers as bio-receptors for the recognition of target pathogens of interest. This review focuses on the design strategies as well as state-of-the-art technologies of aptasensor-based diagnostics for infectious pathogens (mainly bacteria and viruses), covering the utilization of three major signal transducers, the employment of aptamers as recognition moieties, the construction of versatile biosensing platforms (mostly micro and nanomaterial-based), innovated reporting mechanisms, and signal enhancement approaches. Advanced point-of-care testing (POCT) for infectious disease diagnostics are also discussed highlighting some representative ready-to-use devices to address the urgent needs of currently prevalent coronavirus disease 2019 (COVID-19). Pressing issues in aptamer-based technology and some future perspectives of aptasensors are provided for the implementation of aptasensor-based diagnostics into practical application.
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Affiliation(s)
- Xiao-Fei Chen
- Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou, 510070, People's Republic of China
| | - Xin Zhao
- Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou, 510070, People's Republic of China.
| | - Zifeng Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, People's Republic of China.
- Guangzhou Laboratory, Guangzhou, 510320, People's Republic of China.
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, Guangzhou, 510005, People's Republic of China.
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Electrochemical detection of cortisol on graphene quantum dots modified electrodes using a rationally truncated high affinity aptamer. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-02086-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Identification and Engineering of Aptamers for Theranostic Application in Human Health and Disorders. Int J Mol Sci 2021; 22:ijms22189661. [PMID: 34575825 PMCID: PMC8469434 DOI: 10.3390/ijms22189661] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/25/2021] [Accepted: 07/31/2021] [Indexed: 02/07/2023] Open
Abstract
An aptamer is a short sequence of synthetic oligonucleotides which bind to their cognate target, specifically while maintaining similar or higher sensitivity compared to an antibody. The in-vitro selection of an aptamer, applying a conjoining approach of chemistry and molecular biology, is referred as Systematic Evolution of Ligands by Exponential enrichment (SELEX). These initial products of SELEX are further modified chemically in an attempt to make them stable in biofluid, avoiding nuclease digestion and renal clearance. While the modification is incorporated, enough care should be taken to maintain its sensitivity and specificity. These modifications and several improvisations have widened the window frame of aptamer applications that are currently not only restricted to in-vitro systems, but have also been used in molecular imaging for disease pathology and treatment. In the food industry, it has been used as sensor for detection of different diseases and fungal infections. In this review, we have discussed a brief history of its journey, along with applications where its role as a therapeutic plus diagnostic (theranostic) tool has been demonstrated. We have also highlighted the potential aptamer-mediated strategies for molecular targeting of COVID-19. Finally, the review focused on its future prospective in immunotherapy, as well as in identification of novel biomarkers in stem cells and also in single cell proteomics (scProteomics) to study intra or inter-tumor heterogeneity at the protein level. Small size, chemical synthesis, low batch variation, cost effectiveness, long shelf life and low immunogenicity provide advantages to the aptamer over the antibody. These physical and chemical properties of aptamers render them as a strong biomedical tool for theranostic purposes over the existing ones. The significance of aptamers in human health was the key finding of this review.
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Wan Q, Liu X, Zu Y. Oligonucleotide aptamers for pathogen detection and infectious disease control. Theranostics 2021; 11:9133-9161. [PMID: 34522231 PMCID: PMC8419047 DOI: 10.7150/thno.61804] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 08/04/2021] [Indexed: 12/21/2022] Open
Abstract
During an epidemic or pandemic, the primary task is to rapidly develop precise diagnostic approaches and effective therapeutics. Oligonucleotide aptamer-based pathogen detection assays and control therapeutics are promising, as aptamers that specifically recognize and block pathogens can be quickly developed and produced through simple chemical synthesis. This work reviews common aptamer-based diagnostic techniques for communicable diseases and summarizes currently available aptamers that target various pathogens, including the SARS-CoV-2 virus. Moreover, this review discusses how oligonucleotide aptamers might be leveraged to control pathogen propagation and improve host immune system responses. This review offers a comprehensive data source to the further develop aptamer-based diagnostics and therapeutics specific for infectious diseases.
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Affiliation(s)
| | | | - Youli Zu
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, TX 77030, USA
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Liu LS, Wang F, Ge Y, Lo PK. Recent Developments in Aptasensors for Diagnostic Applications. ACS APPLIED MATERIALS & INTERFACES 2021; 13:9329-9358. [PMID: 33155468 DOI: 10.1021/acsami.0c14788] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Aptamers are exciting smart molecular probes for specific recognition of disease biomarkers. A number of strategies have been developed to convert target-aptamer binding into physically detectable signals. Since the aptamer sequence was first discovered, a large variety of aptamer-based biosensors have been developed, with considerable attention paid to their potential applications in clinical diagnostics. So far, a variety of techniques in combination with a wide range of functional nanomaterials have been used for the design of aptasensors to further improve the sensitivity and detection limit of target determination. In this paper, the advantages of aptamers over traditional antibodies as the molecular recognition components in biosensors for high-throughput screening target molecules are highlighted. Aptamer-target pairing configurations are predominantly single- or dual-site binding; the design of recognition modes of each aptamer-target pairing configuration is described. Furthermore, signal transduction strategies including optical, electrical, mechanical, and mass-sensitive modes are clearly explained together with examples. Finally, we summarize the recent progress in the development of aptamer-based biosensors for clinical diagnosis, including detection of cancer and disease biomarkers and in vivo molecular imaging. We then conclude with a discussion on the advanced development and challenges of aptasensors.
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Affiliation(s)
- Ling Sum Liu
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China
| | - Fei Wang
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China
| | - Yonghe Ge
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China
| | - Pik Kwan Lo
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China
- Key Laboratory of Biochip Technology, Biotech and Health Centre, Shenzhen Research Institute of City University of Hong Kong, Shenzhen 518057, China
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Pereira HS, Tagliaferri TL, Mendes TADO. Enlarging the Toolbox Against Antimicrobial Resistance: Aptamers and CRISPR-Cas. Front Microbiol 2021; 12:606360. [PMID: 33679633 PMCID: PMC7932999 DOI: 10.3389/fmicb.2021.606360] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 01/05/2021] [Indexed: 12/13/2022] Open
Abstract
In the post-genomic era, molecular treatments and diagnostics have been envisioned as powerful techniques to tackle the antimicrobial resistance (AMR) crisis. Among the molecular approaches, aptamers and CRISPR-Cas have gained support due to their practicality, sensibility, and flexibility to interact with a variety of extra- and intracellular targets. Those characteristics enabled the development of quick and onsite diagnostic tools as well as alternative treatments for pan-resistant bacterial infections. Even with such potential, more studies are necessary to pave the way for their successful use against AMR. In this review, we highlight those two robust techniques and encourage researchers to refine them toward AMR. Also, we describe how aptamers and CRISPR-Cas can work together with the current diagnostic and treatment toolbox.
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Affiliation(s)
| | | | - Tiago Antônio de Oliveira Mendes
- Laboratory of Synthetic Biology and Modelling of Biological Systems, Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Viçosa, Brazil
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Taneja V, Goel M, Shankar U, Kumar A, Khilnani GC, Prasad HK, Prasad GBKS, Gupta UD, Sharma TK. An Aptamer Linked Immobilized Sorbent Assay (ALISA) to Detect Circulatory IFN-α, an Inflammatory Protein among Tuberculosis Patients. ACS COMBINATORIAL SCIENCE 2020; 22:656-666. [PMID: 33063508 DOI: 10.1021/acscombsci.0c00108] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Dysregulation of IFN-α is the basis for pathogenesis of autoimmune as well as infectious diseases. Identifying inflammatory signatures in peripheral blood of patients is an approach for monitoring active infection. Hence, estimation of type I IFNs as an inflammatory biomarker to scrutinize disease status after treatment is useful. Accordingly, an Aptamer Linked Immobilized Sorbent Assay (ALISA) for the detection of IFN-α in serum samples was developed. Sixteen aptamers were screened for their ability to bind IFN-α. Aptamer IFNα-3 exhibited specificity for IFN-α with no cross-reactivity with interferons β and γ and human serum albumin. The disassociation constant (Kd) was determined to be 3.96 ± 0.36 nM, and the limit of detection was ∼2 ng. The characterized IFNα-3 aptamer was used in ALISA to screen tuberculosis (TB) patients' sera. An elevated IFN-α level in sera derived from untreated TB patients (median = 0.31), compared to nontuberculous household contacts (median = 0.13) and healthy volunteers (median = 0.12), and further a decline in IFN-α level among treated patients (median = 0.13) were seen. The ALISA assay facilitates direct estimation of inflammatory protein(s) in circulation unlike mRNA estimation by real time PCR. Designing of aptamers similar to the IFNα-3 aptamer provides a novel approach to assess other inflammatory protein(s) in patients before, during, and after completion of treatment and would denote clinical improvement in successfully treated patients.
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Affiliation(s)
- Vibha Taneja
- National JALMA Institute of Leprosy and Other Mycobacterial Diseases, Tajganj, Agra, 282001, India
- Department of Biochemistry, Jiwaji University, Gwalior, Madhya Pradesh 474011, India
- Aptamer Technology and Diagnostics Laboratory, Multidisciplinary Clinical and Translational Research Group, Translational Health Science and Technology Institute, Incubator, NCR Biotech Science Cluster, Third Milestone, Faridabad, Gurgaon Expressway, Faridabad, 121001, India
- Department of Biotechnology, All India Institute of Medical Sciences (AIIMS), New Delhi 110029, India
| | - Manish Goel
- Department of Pulmonary, Critical Care and Sleep Medicine, All India Institute of Medical Sciences (AIIMS), New Delhi 110029, India
| | - Uma Shankar
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
| | - Amit Kumar
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
| | - Gopi C. Khilnani
- Department of Pulmonary, Critical Care and Sleep Medicine, All India Institute of Medical Sciences (AIIMS), New Delhi 110029, India
| | - Hanumanthappa K. Prasad
- Department of Biotechnology, All India Institute of Medical Sciences (AIIMS), New Delhi 110029, India
| | | | - Umesh D. Gupta
- National JALMA Institute of Leprosy and Other Mycobacterial Diseases, Tajganj, Agra, 282001, India
| | - Tarun K. Sharma
- Aptamer Technology and Diagnostics Laboratory, Multidisciplinary Clinical and Translational Research Group, Translational Health Science and Technology Institute, Incubator, NCR Biotech Science Cluster, Third Milestone, Faridabad, Gurgaon Expressway, Faridabad, 121001, India
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Koçer MB, Aydoğdu Tığ G, Pekyardımcı Ş. Selective determination of non-organophosphorus insecticide using DNA aptamer-based single-use biosensors. Biotechnol Appl Biochem 2020; 68:1174-1184. [PMID: 32969502 DOI: 10.1002/bab.2039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 09/17/2020] [Indexed: 12/18/2022]
Abstract
In the present study, we developed a disposable aptamer-based biosensor for rapid, sensitive, and reliable detection of acetamiprid (ACE). To improve the sensitivity of the aptasensor, poly-5-amino-2-mercapto-1,3,4-thiadiazole [P(AMT)] and gold nanoparticles (AuNPs) were progressively electrodeposited on the screen-printed electrode (SPE) surface by using cyclic voltammetry (CV) technique. For the determination of ACE, thiol-modified primary aptamer (Apt1) was selected by using the SELEX method and immobilized on the surface of the P(AMT) and AuNPs-modified SPE (SPE/P(AMT)/AuNPs) via AuS bonding. Then, the surface-bound aptamer was incubated with ACE for 45 Min. After that, the biotin-labeled aptamer 2 (Apt2) was interacted with the ACE, then the enzyme-labeled step was performed. In this step, alkaline phosphatase (ALP) was bound to the surface through the interaction between Apt2 labeled with biotin and streptavidin (strep)-ALP conjugate. The determination of ACE was achieved by measuring the oxidation signal of α-naphthol, which is formed on the electrode surface through the interaction of ALP with α-naphthyl phosphate. The working range of the developed aptasensor was determined as 5 × 10-12 -5 × 10-10 mol L-1 with a low limit of detection (1.5 pmol L-1 ). It was also found that the proposed aptasensor possessed great advantages such as low cost, good selectivity, and good reproducibility.
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Affiliation(s)
- Mustafa Barış Koçer
- Department of Chemistry, Faculty of Science, Selçuk University, Konya, Turkey
| | - Gözde Aydoğdu Tığ
- Department of Chemistry, Faculty of Science, Ankara University, Ankara, Turkey
| | - Şule Pekyardımcı
- Department of Chemistry, Faculty of Science, Ankara University, Ankara, Turkey
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Mohd Amiruddin M, Ang GY, Yu CY, Falero-Diaz G, Otero O, Reyes F, Camacho F, Chin K, Sarmiento M, Norazmi M, Acosta A, Yean Yean C. Development of an immunochromatographic lateral flow dipstick for the detection of Mycobacterium tuberculosis 16 kDa antigen (Mtb-strip). J Microbiol Methods 2020; 176:106003. [DOI: 10.1016/j.mimet.2020.106003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/27/2020] [Accepted: 07/13/2020] [Indexed: 01/05/2023]
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15
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Trunzo NE, Hong KL. Recent Progress in the Identification of Aptamers Against Bacterial Origins and Their Diagnostic Applications. Int J Mol Sci 2020; 21:ijms21145074. [PMID: 32708376 PMCID: PMC7404326 DOI: 10.3390/ijms21145074] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/15/2020] [Accepted: 07/16/2020] [Indexed: 12/18/2022] Open
Abstract
Aptamers have gained an increasing role as the molecular recognition element (MRE) in diagnostic assay development, since their first conception thirty years ago. The process to screen for nucleic acid-based binding elements (aptamers) was first described in 1990 by the Gold Laboratory. In the last three decades, many aptamers have been identified for a wide array of targets. In particular, the number of reports on investigating single-stranded DNA (ssDNA) aptamer applications in biosensing and diagnostic platforms have increased significantly in recent years. This review article summarizes the recent (2015 to 2020) progress of ssDNA aptamer research on bacteria, proteins, and lipids of bacterial origins that have implications for human infections. The basic process of aptamer selection, the principles of aptamer-based biosensors, and future perspectives will also be discussed.
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Negahdary M. Electrochemical aptasensors based on the gold nanostructures. Talanta 2020; 216:120999. [PMID: 32456913 DOI: 10.1016/j.talanta.2020.120999] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/29/2020] [Accepted: 04/01/2020] [Indexed: 02/07/2023]
Abstract
Electrochemical aptasensors as novel diagnostic tools have attracted sufficient research interest in biomedical sciences. In this review, recent leading trends about gold (Au) nanostructures based electrochemical aptasensors have been collected, reviewed, and compared. Here, the considered electrochemical aptasensors were categorized based on the analytes and diagnostic techniques. Pharmaceutical analytes and biomolecules were reviewed in a separate section consisting of a variety of antibiotics, analgesics, and other biomolecules. Various aptasensors have also measured toxins, ions, and hazardous chemicals, and the findings of them have also been reviewed. Many aptasensors have been designed to detect different disease biomarkers that will play an essential role in the future of early diagnosis of diseases. Pathogen microorganisms have been considered as the analyte in several designed electrochemical aptasensors in recent researches, and their results have been reviewed and discussed as another section. Important aspects considered in the review of the mentioned aptasensors were the type of analyte, features of the aptamer as the biorecognition element, type of Au nanostructures, diagnostic technique, diagnostic mechanism, detection range and the limit of detection (LOD). In the last section, an in-depth analysis has been provided based on the crucial features of all included aptasensors.
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Affiliation(s)
- Masoud Negahdary
- Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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Electrochemical biosensors based on nucleic acid aptamers. Anal Bioanal Chem 2020; 412:55-72. [PMID: 31912182 DOI: 10.1007/s00216-019-02226-x] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 10/12/2019] [Accepted: 10/18/2019] [Indexed: 02/07/2023]
Abstract
During recent decades, nucleic acid aptamers have emerged as powerful biological recognition elements for electrochemical affinity biosensors. These bioreceptors emulate or improve on antibody-based biosensors because of their excellent characteristics as bioreceptors, including limitless selection capacity for a large variety of analytes, easy and cost-effective production, high stability and reproducibility, simple chemical modification, stable and oriented immobilization on electrode surfaces, enhanced target affinity and selectivity, and possibility to design them in target-sensitive 3D folded structures. This review provides an overview of the state of the art of electrochemical aptasensor technology, focusing on novel aptamer-based electroanalytical assay configurations and providing examples to illustrate the different possibilities. Future prospects for this technology are also discussed. Graphical abstract.
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Exploring electrochemistry of carbon nanodots and its application in noninvasive bacterial growth monitoring. Biosens Bioelectron 2019; 144:111640. [DOI: 10.1016/j.bios.2019.111640] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 08/11/2019] [Accepted: 08/26/2019] [Indexed: 12/18/2022]
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Tuberculosis Presenting as Isolated Wrist Swelling: A Case Report and Review of Literature. Case Rep Surg 2019; 2019:4916157. [PMID: 31772811 PMCID: PMC6854222 DOI: 10.1155/2019/4916157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 09/30/2019] [Indexed: 11/18/2022] Open
Abstract
Background. Tuberculosis is a common disease entity in South East Asian countries with a significant global burden. An extra skeletal manifestation such as monoarticular TB is common, but isolated involvement of the wrist is rare. Case Summary. A 53-year-old Sri Lankan male with long-standing diabetes presented with an isolated hand swelling for a 7-month duration. His initial imaging and MRI showed multiple destructive lesions in the carpal bones, surrounding focal fluid collections and found to have caseous material intraoperatively. His histology and microbiological studies were positive for TB with no other concurrent evidence of TB elsewhere. Conclusion. Different presentations of tuberculosis should be considered when patients are presenting with atypical clinical and initial basic investigation findings in relation to monoarticular pathologies.
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