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Singh SK, Kumar R, Mathur M, Kamboj H, Kaushik JK, Mohanty AK, Kumar S. Exploring aptamers for targeted enrichment of X sperm in bovine: unraveling selective potential. Anim Biotechnol 2024; 35:2323592. [PMID: 38770771 DOI: 10.1080/10495398.2024.2323592] [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] [Indexed: 05/22/2024]
Abstract
Nucleic acid aptamers have been used in the past for the development of diagnostic methods against a number of targets such as bacteria, pesticides, cancer cells etc. In the present study, six rounds of Cell-SELEX were performed on a ssDNA aptamer library against X-enriched sperm cells from Sahiwal breed cattle. Sequencing was used to examine the aptamer sequences that shown affinity for sperm carrying the X chromosome in order to find any possible X-sperm-specific sequences. Out of 35 identified sequences, 14 were selected based on bioinformatics analysis like G-Score and Mfold structures. Further validation of their specificity was done via fluorescence microscopy. The interaction of biotinylated-aptamer with sperm was also determined by visualizing the binding of streptavidin coated magnetic beads on the head region of the sperm under bright field microscopy. Finally, a real-time experiment was designed for the validation of X-sperm enrichment by synthesized aptamer sequences. Among the studied sequences, aptamer 29a exhibited a higher affinity for X sperm compared to Y sperm in a mixed population of sperm cells. By using aptamer sequence 29a, we obtained an enrichment of 70% for X chromosome bearing sperm cells.
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Affiliation(s)
| | | | - Manya Mathur
- National Dairy Research Institute (ICAR), Karnal, Haryana, India
| | - Himanshu Kamboj
- Amity Institute of Biotechnology, Amity University, Noida, India
| | | | - Ashok Kumar Mohanty
- National Dairy Research Institute (ICAR), Karnal, Haryana, India
- Central Institute for Research on Cattle, Meerut, Uttar Pradesh, India
| | - Sudarshan Kumar
- National Dairy Research Institute (ICAR), Karnal, Haryana, India
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Shin S, Nasim U, O'Connor H, Hong Y. Progress towards permanent respiratory support. Curr Opin Organ Transplant 2024; 29:349-356. [PMID: 38990111 DOI: 10.1097/mot.0000000000001163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
PURPOSE OF REVIEW Although lung transplantation stands as the gold standard curative therapy option for end-stage lung disease, the scarcity of available organs poses a significant challenge in meeting the escalating demand. This review provides an overview of recent advancements in ambulatory respiratory assist systems, selective anticoagulation therapies that target the intrinsic pathway, and innovative surface coatings to enable permanent respiratory support as a viable alternative to lung transplantation. RECENT FINDINGS Several emerging ambulatory respiratory assist systems have shown promise in both preclinical and clinical trials. These systems aim to create more biocompatible, compact, and portable forms of extracorporeal membrane oxygenation that can provide long-term respiratory support. Additionally, innovative selective anticoagulation strategies, currently in various stages of preclinical or clinical development, present a promising alternative to currently utilized nonselective anticoagulants. Moreover, novel surface coatings hold the potential to locally prevent artificial surface-induced thrombosis and minimize bleeding risks. SUMMARY This review of recent advancements toward permanent respiratory support summarizes the development of ambulatory respiratory assist systems, selective anticoagulation therapies, and novel surface coatings. The integration of these evolving device technologies with targeted anticoagulation strategies may allow a safe and effective mode of permanent respiratory support for patients with chronic lung disease.
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Affiliation(s)
- Suji Shin
- Department of Biomedical Engineering, Carnegie Mellon University
| | - Umar Nasim
- Department of Biomedical Engineering, Carnegie Mellon University
| | - Hassana O'Connor
- Department of Biomedical Engineering, Carnegie Mellon University
| | - Yeahwa Hong
- Department of Biomedical Engineering, Carnegie Mellon University
- Department of Surgery, the University of Pittsburgh Medical Center
- Department of Cardiothoracic Surgery, the University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania (PA), USA
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3
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Murray MT, Wetmore SD. Unlocking precision in aptamer engineering: a case study of the thrombin binding aptamer illustrates why modification size, quantity, and position matter. Nucleic Acids Res 2024:gkae729. [PMID: 39217472 DOI: 10.1093/nar/gkae729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 08/02/2024] [Accepted: 08/23/2024] [Indexed: 09/04/2024] Open
Abstract
The thrombin binding aptamer (TBA) is a prototypical platform used to understand the impact of chemically-modified nucleotides on aptamer stability and target affinity. To provide structural insight into the experimentally-observed effects of modification size, location, and number on aptamer performance, long time-scale molecular dynamics (MD) simulations were performed on multiple binding orientations of TBA-thrombin complexes that contain a large, flexible tryptophan thymine derivative (T-W) or a truncated analogue (T-K). Depending on modification position, T-W alters aptamer-target binding orientations, fine-tunes aptamer-target interactions, strengthens networks of nucleic acid-protein contacts, and/or induces target conformational changes to enhance binding. The proximity and 5'-to-3' directionality of nucleic acid structural motifs also play integral roles in the behavior of the modifications. Modification size can differentially influence target binding by promoting more than one aptamer-target binding pose. Multiple modifications can synergistically strengthen aptamer-target binding by generating novel nucleic acid-protein structural motifs that are unobtainable for single modifications. By studying a diverse set of modified aptamers, our work uncovers design principles that must be considered in the future development of aptamers containing chemically-modified nucleotides for applications in medicine and biotechnology, highlighting the value of computational studies in nucleic acids research.
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Affiliation(s)
- Makay T Murray
- Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Drive West, Lethbridge, Alberta T1K 3M4, Canada
| | - Stacey D Wetmore
- Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Drive West, Lethbridge, Alberta T1K 3M4, Canada
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Nuntawong P, Senoo A, Tayama Y, Caaveiro JMM, Morimoto S, Sakamoto S. An aptamer-based fluorometric method for the rapid berberine detection in Kampo medicines. Anal Chim Acta 2024; 1318:342930. [PMID: 39067935 DOI: 10.1016/j.aca.2024.342930] [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: 02/01/2024] [Revised: 06/08/2024] [Accepted: 06/30/2024] [Indexed: 07/30/2024]
Abstract
BACKGROUND Berberine (BBR), a key component in Kampo medicine, is a cationic benzylisoquinoline alkaloid whose detection plays a critical role in the quality control of these traditional remedies. Traditional methods for detecting BBR often involve complex procedures, which can be time-consuming and costly. To address this challenge, our study focuses on developing a simpler, faster, and more efficient detection method for BBR in Kampo medicine formulations. RESULTS We successfully developed a rapid fluorometric detection method for BBR using colloidal gold nanoparticle-based systematic evolution of ligands by exponential enrichment (GOLD-SELEX). Initially, specific single-stranded DNA (ssDNA) sequences were selected for their ability to enhance BBR's fluorescence intensity. The optimal ssDNA sequence, identified as BBR38, was further truncated to produce BBR38S, a stem-loop ssDNA that improved fluorescence upon interaction with BBR. To further enhance the fluorescence, the BBR38S aptamer underwent additional modifications, including stem truncation and nucleotide mutations, resulting in the higher fluorescence variant BBR38S-3 A10C. The final product, TetBBR38S, a tetramer version of BBR38S-3 A10C, exhibited a linear detection range of 0.780-50.0 μg mL-1 and a limit of detection of 0.369 μg mL-1. The assay demonstrated sufficient selectivity and was successfully applied to analyze 128 different Kampo medicine formulations, accurately detecting BBR content with high precision. SIGNIFICANCE This study represents an advancement in Kampo medicine research, marking the first successful application of an aptamer-based approach for BBR detection in complex matrices. The developed method is not only simple and rapid (with a detection time of 5 min) but also cost-effective, which is crucial for widespread application.
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Affiliation(s)
- Poomraphie Nuntawong
- Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Akinobu Senoo
- Department of Protein Drug Discovery, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yorie Tayama
- Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Jose M M Caaveiro
- Department of Protein Drug Discovery, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Satoshi Morimoto
- Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Seiichi Sakamoto
- Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
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Bang S, Choi D, Shin J, Kim J, Choi Y, Lee SE, Hong S. Automated System for Attomolar-Level Detection of MiRNA as a Biomarker for Influenza A Virus. ACS APPLIED MATERIALS & INTERFACES 2024; 16:33897-33906. [PMID: 38902962 DOI: 10.1021/acsami.4c04898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/22/2024]
Abstract
We have developed an automated sensing system for the repeated detection of a specific microRNA (miRNA) of the influenza A (H1N1) virus. In this work, magnetic particles functionalized with DNAs, target miRNAs, and alkaline phosphate (ALP) enzymes formed sandwich structures. These particles were trapped on nickel (Ni) patterns of our sensor chip by an external magnetic field. Then, additional electrical signals from electrochemical markers generated by ALP enzymes were measured using the sensor, enabling the highly sensitive detection of target miRNA. The magnetic particles used on the sensor were easily removed by applying the opposite direction of external magnetic fields, which allowed us to repeat sensing measurements. As a proof of concept, we demonstrated the detection of miRNA-1254, one of the biomarkers for the H1N1 virus, with a high sensitivity down to 1 aM in real time. Moreover, our sensor could selectively detect the target from other miRNA samples. Importantly, our sensor chip showed reliable electrical signals even after six repeated miRNA sensing measurements. Furthermore, we achieved technical advances to utilize our sensor platform as part of an automated sensing system. In this regard, our reusable sensing platform could be utilized for versatile applications in the field of miRNA detection and basic research.
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Affiliation(s)
- Sunwoo Bang
- Department of Physics and Astronomy, and the Institute of Applied Physics, Seoul National University, Seoul 08826, Korea
| | - Danmin Choi
- Department of Physics and Astronomy, and the Institute of Applied Physics, Seoul National University, Seoul 08826, Korea
| | - Junghyun Shin
- Department of Physics and Astronomy, and the Institute of Applied Physics, Seoul National University, Seoul 08826, Korea
| | - Jeongsu Kim
- Department of Physics and Astronomy, and the Institute of Applied Physics, Seoul National University, Seoul 08826, Korea
| | - Yoonji Choi
- Department of Physics and Astronomy, and the Institute of Applied Physics, Seoul National University, Seoul 08826, Korea
| | - Sang-Eun Lee
- Department of Physics and Astronomy, and the Institute of Applied Physics, Seoul National University, Seoul 08826, Korea
| | - Seunghun Hong
- Department of Physics and Astronomy, and the Institute of Applied Physics, Seoul National University, Seoul 08826, Korea
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Domsicova M, Korcekova J, Poturnayova A, Breier A. New Insights into Aptamers: An Alternative to Antibodies in the Detection of Molecular Biomarkers. Int J Mol Sci 2024; 25:6833. [PMID: 38999943 PMCID: PMC11240909 DOI: 10.3390/ijms25136833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 06/17/2024] [Accepted: 06/18/2024] [Indexed: 07/14/2024] Open
Abstract
Aptamers are short oligonucleotides with single-stranded regions or peptides that recently started to transform the field of diagnostics. Their unique ability to bind to specific target molecules with high affinity and specificity is at least comparable to many traditional biorecognition elements. Aptamers are synthetically produced, with a compact size that facilitates deeper tissue penetration and improved cellular targeting. Furthermore, they can be easily modified with various labels or functional groups, tailoring them for diverse applications. Even more uniquely, aptamers can be regenerated after use, making aptasensors a cost-effective and sustainable alternative compared to disposable biosensors. This review delves into the inherent properties of aptamers that make them advantageous in established diagnostic methods. Furthermore, we will examine some of the limitations of aptamers, such as the need to engage in bioinformatics procedures in order to understand the relationship between the structure of the aptamer and its binding abilities. The objective is to develop a targeted design for specific targets. We analyse the process of aptamer selection and design by exploring the current landscape of aptamer utilisation across various industries. Here, we illuminate the potential advantages and applications of aptamers in a range of diagnostic techniques, with a specific focus on quartz crystal microbalance (QCM) aptasensors and their integration into the well-established ELISA method. This review serves as a comprehensive resource, summarising the latest knowledge and applications of aptamers, particularly highlighting their potential to revolutionise diagnostic approaches.
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Affiliation(s)
- Michaela Domsicova
- Centre of Biosciences, Institute of Molecular Physiology and Genetics, Slovak Academy of Sciences, Dúbravská Cesta 9, 84005 Bratislava, Slovakia; (M.D.); (J.K.); (A.P.)
| | - Jana Korcekova
- Centre of Biosciences, Institute of Molecular Physiology and Genetics, Slovak Academy of Sciences, Dúbravská Cesta 9, 84005 Bratislava, Slovakia; (M.D.); (J.K.); (A.P.)
| | - Alexandra Poturnayova
- Centre of Biosciences, Institute of Molecular Physiology and Genetics, Slovak Academy of Sciences, Dúbravská Cesta 9, 84005 Bratislava, Slovakia; (M.D.); (J.K.); (A.P.)
| | - Albert Breier
- Centre of Biosciences, Institute of Molecular Physiology and Genetics, Slovak Academy of Sciences, Dúbravská Cesta 9, 84005 Bratislava, Slovakia; (M.D.); (J.K.); (A.P.)
- Institute of Biochemistry and Microbiology, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 81237 Bratislava, Slovakia
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Santarpia G, Carnes E. Therapeutic Applications of Aptamers. Int J Mol Sci 2024; 25:6742. [PMID: 38928448 PMCID: PMC11204156 DOI: 10.3390/ijms25126742] [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: 05/20/2024] [Revised: 06/13/2024] [Accepted: 06/17/2024] [Indexed: 06/28/2024] Open
Abstract
Affinity reagents, or target-binding molecules, are quite versatile and are major workhorses in molecular biology and medicine. Antibodies are the most famous and frequently used type and they have been used for a wide range of applications, including laboratory techniques, diagnostics, and therapeutics. However, antibodies are not the only available affinity reagents and they do have significant drawbacks, including laborious and costly production. Aptamers are one potential alternative that have a variety of unique advantages. They are single stranded DNA or RNA molecules that can be selected for binding to many targets including proteins, carbohydrates, and small molecules-for which antibodies typically have low affinity. There are also a variety of cost-effective methods for producing and modifying nucleic acids in vitro without cells, whereas antibodies typically require cells or even whole animals. While there are also significant drawbacks to using aptamers in therapeutic applications, including low in vivo stability, aptamers have had success in clinical trials for treating a variety of diseases and two aptamer-based drugs have gained FDA approval. Aptamer development is still ongoing, which could lead to additional applications of aptamer therapeutics, including antitoxins, and combinatorial approaches with nanoparticles and other nucleic acid therapeutics that could improve efficacy.
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Affiliation(s)
- George Santarpia
- College of Public Health, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Eric Carnes
- College of Public Health, University of Nebraska Medical Center, Omaha, NE 68198, USA
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Dubourg G, Pavlović Z, Bajac B, Kukkar M, Finčur N, Novaković Z, Radović M. Advancement of metal oxide nanomaterials on agri-food fronts. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 928:172048. [PMID: 38580125 DOI: 10.1016/j.scitotenv.2024.172048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 03/03/2024] [Accepted: 03/26/2024] [Indexed: 04/07/2024]
Abstract
The application of metal oxide nanomaterials (MOx NMs) in the agrifood industry offers innovative solutions that can facilitate a paradigm shift in a sector that is currently facing challenges in meeting the growing requirements for food production, while safeguarding the environment from the impacts of current agriculture practices. This review comprehensively illustrates recent advancements and applications of MOx for sustainable practices in the food and agricultural industries and environmental preservation. Relevant published data point out that MOx NMs can be tailored for specific properties, enabling advanced design concepts with improved features for various applications in the agrifood industry. Applications include nano-agrochemical formulation, control of food quality through nanosensors, and smart food packaging. Furthermore, recent research suggests MOx's vital role in addressing environmental challenges by removing toxic elements from contaminated soil and water. This mitigates the environmental effects of widespread agrichemical use and creates a more favorable environment for plant growth. The review also discusses potential barriers, particularly regarding MOx toxicity and risk evaluation. Fundamental concerns about possible adverse effects on human health and the environment must be addressed to establish an appropriate regulatory framework for nano metal oxide-based food and agricultural products.
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Affiliation(s)
- Georges Dubourg
- University of Novi Sad, Center for Sensor Technologies, Biosense Institute, Dr Zorana Đinđića 1, 21000 Novi Sad, Serbia.
| | - Zoran Pavlović
- University of Novi Sad, Center for Sensor Technologies, Biosense Institute, Dr Zorana Đinđića 1, 21000 Novi Sad, Serbia
| | - Branimir Bajac
- University of Novi Sad, Center for Sensor Technologies, Biosense Institute, Dr Zorana Đinđića 1, 21000 Novi Sad, Serbia
| | - Manil Kukkar
- University of Novi Sad, Center for Sensor Technologies, Biosense Institute, Dr Zorana Đinđića 1, 21000 Novi Sad, Serbia
| | - Nina Finčur
- University of Novi Sad Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
| | - Zorica Novaković
- University of Novi Sad, Center for Sensor Technologies, Biosense Institute, Dr Zorana Đinđića 1, 21000 Novi Sad, Serbia
| | - Marko Radović
- University of Novi Sad, Center for Sensor Technologies, Biosense Institute, Dr Zorana Đinđića 1, 21000 Novi Sad, Serbia
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Shafiei N, Mahmoodzadeh Hosseini H, Amani J, Mirhosseini SA, Jafary H. Screening and identification of DNA nucleic acid aptamers against F1 protein of Yersinia pestis using SELEX method. Mol Biol Rep 2024; 51:722. [PMID: 38829419 DOI: 10.1007/s11033-024-09561-y] [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: 11/19/2023] [Accepted: 04/16/2024] [Indexed: 06/05/2024]
Abstract
BACKGROUND Yersinia pestis is a bacterium that causes the disease plague. It has caused the deaths of many people throughout history. The bacterium possesses several virulence factors (pPla, pFra, and PYV). PFra plasmid encodes fraction 1 (F1) capsular antigen. F1 protein protects the bacterium against host immune cells through phagocytosis process. This protein is specific for Y. pestis. Many diagnostic techniques are based on molecular and serological detection and quantification of F1 protein in different food and clinical samples. Aptamers are small nucleic acid sequences that can act as specific ligands for many targets.This study, aimed to isolate the high-affinity ssDNA aptamers against F1 protein. METHODS AND RESULTS In this study, SELEX was used as the main strategy in screening aptamers. Moreover, enzyme-linked aptamer sorbent assay (ELASA) and surface plasmon resonance (SPR) were used to determine the affinity and specificity of obtained aptamers to F1 protein. The analysis showed that among the obtained aptamers, the three aptamers of Yer 21, Yer 24, and Yer 25 were selected with a KD value of 1.344E - 7, 2.004E - 8, and 1.68E - 8 M, respectively. The limit of detection (LoD) was found to be 0.05, 0.076, and 0.033 μg/ml for Yer 21, Yer 24, and Yer 25, respectively. CONCLUSION This study demonstrated that the synthesized aptamers could serve as effective tools for detecting and analyzing the F1 protein, indicating their potential value in future diagnostic applications.
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Affiliation(s)
- Nafiseh Shafiei
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Hamideh Mahmoodzadeh Hosseini
- Applied Microbiology Research Center, Biomedicine Technologies Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
| | - Jafar Amani
- Applied Microbiology Research Center, Biomedicine Technologies Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Seyed Ali Mirhosseini
- Applied Microbiology Research Center, Biomedicine Technologies Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Hanieh Jafary
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Le Dortz LL, Rouxel C, Polack B, Boulouis HJ, Lagrée AC, Deshuillers PL, Haddad N. Tick-borne diseases in Europe: Current prevention, control tools and the promise of aptamers. Vet Parasitol 2024; 328:110190. [PMID: 38714064 DOI: 10.1016/j.vetpar.2024.110190] [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: 10/27/2023] [Revised: 04/03/2024] [Accepted: 04/23/2024] [Indexed: 05/09/2024]
Abstract
In Europe, tick-borne diseases (TBDs) cause significant morbidity and mortality, affecting both human and animal health. Ticks can transmit a wide variety of pathogens (bacteria, viruses, and parasites) and feed on many vertebrate hosts. The incidence and public health burden of TBDs are tending to intensify in Europe due to various factors, mainly anthropogenic and often combined. Early detection of tick-borne pathogens (TBPs), preventive measures and treatment are of great importance to control TBDs and their expansion. However, there are various limitations in terms of the sensitivity and/or specificity of detection and prevention methods, and even in terms of feasibility. Aptamers are single-stranded DNA or RNA that could address these issues as they are able to bind with high affinity and specificity to a wide range of targets (e.g., proteins, small compounds, and cells) due to their unique three-dimensional structure. To date, aptamers have been selected against TBPs such as tick-borne encephalitis virus, Francisella tularensis, and Rickettsia typhi. These studies have demonstrated the benefits of aptamer-based assays for pathogen detection and medical diagnosis. In this review, we address the applications of aptamers to TBDs and discuss their potential for improving prevention measures (use of chemical acaricides, vaccination), diagnosis and therapeutic strategies to control TBDs.
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Affiliation(s)
- Lisa Lucie Le Dortz
- ANSES, INRAE, EnvA (Ecole nationale vétérinaire d'Alfort), UMR BIPAR, Laboratory of Animal Health, Maisons-Alfort F-94700, France
| | - Clotilde Rouxel
- ANSES, INRAE, EnvA (Ecole nationale vétérinaire d'Alfort), UMR BIPAR, Laboratory of Animal Health, Maisons-Alfort F-94700, France
| | - Bruno Polack
- ANSES, INRAE, EnvA (Ecole nationale vétérinaire d'Alfort), UMR BIPAR, Laboratory of Animal Health, Maisons-Alfort F-94700, France
| | - Henri-Jean Boulouis
- ANSES, INRAE, EnvA (Ecole nationale vétérinaire d'Alfort), UMR BIPAR, Laboratory of Animal Health, Maisons-Alfort F-94700, France
| | - Anne-Claire Lagrée
- ANSES, INRAE, EnvA (Ecole nationale vétérinaire d'Alfort), UMR BIPAR, Laboratory of Animal Health, Maisons-Alfort F-94700, France
| | - Pierre Lucien Deshuillers
- ANSES, INRAE, EnvA (Ecole nationale vétérinaire d'Alfort), UMR BIPAR, Laboratory of Animal Health, Maisons-Alfort F-94700, France
| | - Nadia Haddad
- ANSES, INRAE, EnvA (Ecole nationale vétérinaire d'Alfort), UMR BIPAR, Laboratory of Animal Health, Maisons-Alfort F-94700, France.
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11
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Doan THP, Fried JP, Tang W, Hagness DE, Yang Y, Wu Y, Tilley RD, Gooding JJ. Nanopore Blockade Sensors for Quantitative Analysis Using an Optical Nanopore Assay. NANO LETTERS 2024; 24:6218-6224. [PMID: 38757765 DOI: 10.1021/acs.nanolett.4c00530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Nanopore sensing is a popular biosensing strategy that is being explored for the quantitative analysis of biomarkers. With low concentrations of analytes, nanopore sensors face challenges related to slow response times and selectivity. Here, we demonstrate an approach to rapidly detect species at ultralow concentrations using an optical nanopore blockade sensor for quantitative detection of the protein vascular endothelial growth factor (VEGF). This sensor relies on monitoring fluorescent polystyrene nanoparticles blocking nanopores in a nanopore array of 676 nanopores. The fluorescent signal is read out using a wide-field fluorescence microscope. Nonspecific blockade events are then distinguished from specific blockade events based on the ability to pull the particles out of the pore using an applied electric field. This allows the detection of VEGF at sub-picomolar concentration in less than 15 min.
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Affiliation(s)
- Thanh Hoang Phuong Doan
- School of Chemistry, Australian Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Jasper P Fried
- School of Chemistry, Australian Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Wenxian Tang
- School of Chemistry, Australian Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Daniel Everett Hagness
- School of Chemistry, Australian Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Ying Yang
- School of Chemistry, Australian Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Yanfang Wu
- School of Chemistry, Australian Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Richard D Tilley
- School of Chemistry, Australian Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
- Electron Microscope Unit, Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - J Justin Gooding
- School of Chemistry, Australian Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
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12
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Oliveira R, Pinho E, Barros MM, Azevedo NF, Almeida C. In vitro selection of DNA aptamers against staphylococcal enterotoxin A. Sci Rep 2024; 14:11345. [PMID: 38762575 PMCID: PMC11102521 DOI: 10.1038/s41598-024-61094-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 04/30/2024] [Indexed: 05/20/2024] Open
Abstract
Staphylococcal enterotoxin A (SEA) is the most frequently reported in staphylococcal food poisoning (SFP) outbreaks. Aptamers are single-stranded nucleic acids that are seen as promising alternatives to antibodies in several areas, including diagnostics. In this work, systematic evolution of ligands by exponential enrichment (SELEX) was used to select DNA aptamers against SEA. The SELEX protocol employed magnetic beads as an immobilization matrix for the target molecule and real-time quantitative PCR (qPCR) for monitoring and optimizing sequence enrichment. After 10 selection cycles, the ssDNA pool with the highest affinity was sequenced by next generation sequencing (NGS). Approximately 3 million aptamer candidates were identified, and the most representative cluster sequences were selected for further characterization. The aptamer with the highest affinity showed an experimental dissociation constant (KD) of 13.36 ± 18.62 nM. Increased temperature negatively affected the affinity of the aptamer for the target. Application of the selected aptamers in a lateral flow assay demonstrated their functionality in detecting samples containing 100 ng SEA, the minimum amount capable of causing food poisoning. Overall, the applicability of DNA aptamers in SEA recognition was demonstrated and characterized under different conditions, paving the way for the development of diagnostic tools.
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Affiliation(s)
- Ricardo Oliveira
- INIAV - National Institute for Agrarian and Veterinarian Research, Rua dos Lagidos, Vairão, 4485-655, Vila do Conde, Portugal.
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal.
- AliCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal.
| | - Eva Pinho
- INIAV - National Institute for Agrarian and Veterinarian Research, Rua dos Lagidos, Vairão, 4485-655, Vila do Conde, Portugal
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
- AliCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
| | - Maria Margarida Barros
- INIAV - National Institute for Agrarian and Veterinarian Research, Rua dos Lagidos, Vairão, 4485-655, Vila do Conde, Portugal
| | - Nuno Filipe Azevedo
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
- AliCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
| | - Carina Almeida
- INIAV - National Institute for Agrarian and Veterinarian Research, Rua dos Lagidos, Vairão, 4485-655, Vila do Conde, Portugal
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
- AliCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
- Centre of Biological Engineering (CEB), University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
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13
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Shayesteh OH, Derakhshandeh K, Ranjbar A, Mahjub R, Farmany A. Development of a label-free, sensitive gold nanoparticles-poly(adenine) aptasensing platform for colorimetric determination of aflatoxin B1 in corn. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024. [PMID: 38682263 DOI: 10.1039/d4ay00605d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
In this work, a sensitive colorimetric bioassay method based on a poly(adenine) aptamer (polyA apt) and gold nanoparticles (AuNPs) was developed for the determination of aflatoxin B1 (AFB1). The polyA apt, adsorbed on the AuNPs, especially can bind to the analyte while deterring non-specific interactions. This nano aptasensor uses cationic polymer poly(diallyl dimethyl ammonium chloride) (PDDA), as an aggregating agent, to aggregate gold nanoparticles. PolyA apt-decorated gold nanoparticles (AuNPs/polyA apt) show resistance to PDDA-induced aggregation and maintains their dispersed state (red color) with the optical absorbance signal at λ = 520 nm. However, in the presence of AFB1 in the assay solution, the specific aptamer reacts with high affinity and folds into its three-dimensional form. Aggregation of AuNPs induced by PDDA caused their optical signal shift to λ = 620 nm (blue color). AFB1 concentration in the bioassay solution determines the amount of optical signal shift. Therefore, optical density ratio in two wavelengths (A620/520) can be used as a sturdy colorimetric signal to detect the concentration of aflatoxin B1. AFB1 was linearly detected between 0.5 and 20 ng mL-1, with a detection limit of 0.09 ng mL-1 (S/N = 3). The fabricated aptasensor was applied to the detection of AFB1 in real corn samples.
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Affiliation(s)
- Omid Heydari Shayesteh
- Nutrition Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.
- Medicinal Plants and Natural Products Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Katayoun Derakhshandeh
- Department of Pharmaceutics, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Akram Ranjbar
- Nutrition Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.
- Department of Toxicology and Pharmacology, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Reza Mahjub
- Department of Pharmaceutics, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Abbas Farmany
- Dental Research Center, School of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran
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14
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Wang B, Pan X, Teng IT, Li X, Kobeissy F, Wu ZY, Zhu J, Cai G, Yan H, Yan X, Liang M, Yu F, Lu J, Yang Z, Biondi E, Haskins W, Cao YC, Benner SA, Tan W, Wang KK. Functional Selection of Tau Oligomerization-Inhibiting Aptamers. Angew Chem Int Ed Engl 2024; 63:e202402007. [PMID: 38407551 DOI: 10.1002/anie.202402007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 02/19/2024] [Accepted: 02/21/2024] [Indexed: 02/27/2024]
Abstract
Pathological hyperphosphorylation and aggregation of microtubule-associated Tau protein contribute to Alzheimer's Disease (AD) and other related tauopathies. Currently, no cure exists for Alzheimer's Disease. Aptamers offer significant potential as next-generation therapeutics in biotechnology and the treatment of neurological disorders. Traditional aptamer selection methods for Tau protein focus on binding affinity rather than interference with pathological Tau. In this study, we developed a new selection strategy to enrich DNA aptamers that bind to surviving monomeric Tau protein under conditions that would typically promote Tau aggregation. Employing this approach, we identified a set of aptamer candidates. Notably, BW1c demonstrates a high binding affinity (Kd=6.6 nM) to Tau protein and effectively inhibits arachidonic acid (AA)-induced Tau protein oligomerization and aggregation. Additionally, it inhibits GSK3β-mediated Tau hyperphosphorylation in cell-free systems and okadaic acid-mediated Tau hyperphosphorylation in cellular milieu. Lastly, retro-orbital injection of BW1c tau aptamer shows the ability to cross the blood brain barrier and gain access to neuronal cell body. Through further refinement and development, these Tau aptamers may pave the way for a first-in-class neurotherapeutic to mitigate tauopathy-associated neurodegenerative disorders.
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Affiliation(s)
- Bang Wang
- Department of Chemistry and Department of Physiology and Functional Genomics, Center for Research at Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL 32611, USA
- Foundation for Applied Molecular Evolution, Firebird Biomolecular Sciences LLC, 13709 Progress Boulevard, No. 7, Alachua, FL 32615, USA
| | - Xiaoshu Pan
- Department of Chemistry and Department of Physiology and Functional Genomics, Center for Research at Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL 32611, USA
| | - I-Ting Teng
- Department of Chemistry and Department of Physiology and Functional Genomics, Center for Research at Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL 32611, USA
| | - Xiaowei Li
- Department of Chemistry and Department of Physiology and Functional Genomics, Center for Research at Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL 32611, USA
| | - Firas Kobeissy
- Center for Neurotrauma, Multiomics & Biomarkers, Department of Neurobiology, Neuroscience Institute, Morehouse School of Medicine, 720 Westview Dr. SW, Atlanta, GA 30310-1458, (USA). Department of Emergency Medicine, McKnight Brain Institute, University of Florida, Gainesville, FL 32611, USA
| | - Zo-Yu Wu
- Center for Neurotrauma, Multiomics & Biomarkers, Department of Neurobiology, Neuroscience Institute, Morehouse School of Medicine, 720 Westview Dr. SW, Atlanta, GA 30310-1458, (USA). Department of Emergency Medicine, McKnight Brain Institute, University of Florida, Gainesville, FL 32611, USA
| | - Jiepei Zhu
- Center for Neurotrauma, Multiomics & Biomarkers, Department of Neurobiology, Neuroscience Institute, Morehouse School of Medicine, 720 Westview Dr. SW, Atlanta, GA 30310-1458, (USA). Department of Emergency Medicine, McKnight Brain Institute, University of Florida, Gainesville, FL 32611, USA
| | - Guangzheng Cai
- Center for Neurotrauma, Multiomics & Biomarkers, Department of Neurobiology, Neuroscience Institute, Morehouse School of Medicine, 720 Westview Dr. SW, Atlanta, GA 30310-1458, (USA). Department of Emergency Medicine, McKnight Brain Institute, University of Florida, Gainesville, FL 32611, USA
| | - He Yan
- Department of Chemistry and Department of Physiology and Functional Genomics, Center for Research at Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL 32611, USA
| | - Xin Yan
- Department of Chemistry and Department of Physiology and Functional Genomics, Center for Research at Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL 32611, USA
| | - Mingwei Liang
- Department of Biochemistry and Molecular Biology, UF Health Cancer Center, College of Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Fahong Yu
- Department of Chemistry and Department of Physiology and Functional Genomics, Center for Research at Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL 32611, USA
| | - Jianrong Lu
- Department of Biochemistry and Molecular Biology, UF Health Cancer Center, College of Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Zunyi Yang
- Foundation for Applied Molecular Evolution, Firebird Biomolecular Sciences LLC, 13709 Progress Boulevard, No. 7, Alachua, FL 32615, USA
| | - Elisa Biondi
- Foundation for Applied Molecular Evolution, Firebird Biomolecular Sciences LLC, 13709 Progress Boulevard, No. 7, Alachua, FL 32615, USA
| | - William Haskins
- Gryphon Bio, Inc., 611 Gateway Blvd. Suite 120 #253, South San Francisco, CA 94080-7066, USA
| | - Y Charles Cao
- Department of Chemistry and Department of Physiology and Functional Genomics, Center for Research at Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL 32611, USA
| | - Steven A Benner
- Foundation for Applied Molecular Evolution, Firebird Biomolecular Sciences LLC, 13709 Progress Boulevard, No. 7, Alachua, FL 32615, USA
| | - Weihong Tan
- Department of Chemistry and Department of Physiology and Functional Genomics, Center for Research at Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL 32611, USA
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan, 410082, China
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, 310022, China
| | - Kevin K Wang
- Center for Neurotrauma, Multiomics & Biomarkers, Department of Neurobiology, Neuroscience Institute, Morehouse School of Medicine, 720 Westview Dr. SW, Atlanta, GA 30310-1458, (USA). Department of Emergency Medicine, McKnight Brain Institute, University of Florida, Gainesville, FL 32611, USA
- Gryphon Bio, Inc., 611 Gateway Blvd. Suite 120 #253, South San Francisco, CA 94080-7066, USA
- Brain Rehabilitation Research Center, Malcom Randall VA Medical Center, North Florida/South Georgia Veterans Health System, Gainesville, FL 32608, USA
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15
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Kavruk M, Babaie Z, Kibar G, Çetin B, Yeşilkaya H, Amrani Y, Dursun AD, Özalp VC. Aptamer decorated PDA@magnetic silica microparticles for bacteria purification. Mikrochim Acta 2024; 191:285. [PMID: 38652174 PMCID: PMC11039557 DOI: 10.1007/s00604-024-06322-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 03/20/2024] [Indexed: 04/25/2024]
Abstract
One significant constraint in the advancement of biosensors is the signal-to-noise ratio, which is adversely affected by the presence of interfering factors such as blood in the sample matrix. In the present investigation, a specific aptamer binding was chosen for its affinity, while exhibiting no binding affinity towards non-target bacterial cells. This selective binding property was leveraged to facilitate the production of magnetic microparticles decorated with aptamers. A novel assay was developed to effectively isolate S. pneumoniae from PBS or directly from blood samples using an aptamer with an affinity constant of 72.8 nM. The capture experiments demonstrated efficiencies up to 87% and 66% are achievable for isolating spiked S. pneumoniae in 1 mL PBS and blood samples, respectively.
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Affiliation(s)
- Murat Kavruk
- Department of Medical Biology, Faculty of Medicine, İstanbul Aydın University, İstanbul, 34295, Türkiye
| | - Zahra Babaie
- Microfluidics & Lab-on-a-chip Research Group, İ.D. Bilkent University, Ankara, 06800, Türkiye
- UNAM-National Nanotech, Research Center and Institute Materials Science & Nanotech, İ.D. Bilkent University, Ankara, 06800, Türkiye
| | - Güneş Kibar
- Microfluidics & Lab-on-a-chip Research Group, İ.D. Bilkent University, Ankara, 06800, Türkiye
- UNAM-National Nanotech, Research Center and Institute Materials Science & Nanotech, İ.D. Bilkent University, Ankara, 06800, Türkiye
- Micro Nano Particles (MNP) Research Group, Materials Science and Engineering Department, Adana Alparslan Turkes Science and Technology University, Adana, 01250, Türkiye
| | - Barbaros Çetin
- Department of Medical Biology, Faculty of Medicine, İstanbul Aydın University, İstanbul, 34295, Türkiye
- Microfluidics & Lab-on-a-chip Research Group, İ.D. Bilkent University, Ankara, 06800, Türkiye
| | - Hasan Yeşilkaya
- Department Respiratory Sciences, University of Leicester, University Road, Leicester, LE1 7RH, UK
| | - Yassine Amrani
- Department Respiratory Sciences, University of Leicester, University Road, Leicester, LE1 7RH, UK
| | - Ali Doğan Dursun
- Department of Physiology, School of Medicine, Atilim University, Ankara, 06830, Türkiye
| | - V Cengiz Özalp
- Department of Medical Biology, School of Medicine, Atilim University, Ankara, 06830, Türkiye.
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16
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Kouz S, Raouafi A, Ouhibi A, Lorrain N, Essafi M, Mejri M, Raouafi N, Moadhen A, Guendouz M. Detection of SARS-CoV-2 N protein using AgNPs-modified aligned silicon nanowires BioSERS chip. RSC Adv 2024; 14:12071-12080. [PMID: 38628480 PMCID: PMC11019291 DOI: 10.1039/d4ra00267a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 04/03/2024] [Indexed: 04/19/2024] Open
Abstract
The SARS-CoV-2 (COVID-19) pandemic had a strong impact on societies and economies worldwide and tests for high-performance detection of SARS-CoV-2 biomarkers are still needed for potential future outbreaks of the disease. In this paper, we present the different steps for the design of an aptamer-based surface-enhanced Raman scattering (BioSERS) sensing chip capable of detecting the coronavirus nucleocapsid protein (N protein) in spiked phosphate-buffered solutions and real samples of human blood serum. Optimization of the preparation steps in terms of the aptamer concentration used for the functionalization of the silver nanoparticles, time for affixing the aptamer, incubation time with target protein, and insulation of the silver active surface with cysteamine, led to a sensitive BioSERS chip, which was able to detect the N protein in the range from 1 to 75 ng mL-1 in spiked phosphate-buffered solutions with a detection limit of 1 ng mL-1 within 30 min. Furthermore, the BioSERS chip was used to detect the target protein in scarcely spiked human serum. This study demonstrates the possibility of a clinical application that can improve the detection limit and accuracy of the currently commercialized SARS-CoV-2 immunodiagnostic kit. Additionally, the system is modular and can be applied to detect other proteins by only changing the aptamer.
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Affiliation(s)
- Sadok Kouz
- Faculty of Sciences of Tunis, Laboratory of Nanomaterials Nanotechnology and Energy (L2NE), University of Tunis El Manar 2092 Tunis El Manar Tunisia
- UMR FOTON, CNRS, University of Rennes Enssat, BP 80518, 6 rue Kerampont F22305 Lannion France
| | - Amal Raouafi
- Faculty of Sciences of Tunis, Laboratory of Analytical Chemistry and Electrochemistry (LR99ES15), Sensor and Biosensors Group, University of Tunis El Manar 2092 Tunis El Manar Tunisia
| | - Awatef Ouhibi
- Faculty of Sciences of Tunis, Laboratory of Nanomaterials Nanotechnology and Energy (L2NE), University of Tunis El Manar 2092 Tunis El Manar Tunisia
| | - Nathalie Lorrain
- UMR FOTON, CNRS, University of Rennes Enssat, BP 80518, 6 rue Kerampont F22305 Lannion France
| | - Makram Essafi
- Pasteur Institute of Tunis, University of Tunis El Manar LTCII LR11 IPT02 Tunis Tunisia
| | - Manel Mejri
- Pasteur Institute of Tunis, University of Tunis El Manar LTCII LR11 IPT02 Tunis Tunisia
| | - Noureddine Raouafi
- Faculty of Sciences of Tunis, Laboratory of Analytical Chemistry and Electrochemistry (LR99ES15), Sensor and Biosensors Group, University of Tunis El Manar 2092 Tunis El Manar Tunisia
| | - Adel Moadhen
- Faculty of Sciences of Tunis, Laboratory of Nanomaterials Nanotechnology and Energy (L2NE), University of Tunis El Manar 2092 Tunis El Manar Tunisia
| | - Mohammed Guendouz
- UMR FOTON, CNRS, University of Rennes Enssat, BP 80518, 6 rue Kerampont F22305 Lannion France
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17
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Logan N, Cao C, Freitag S, Haughey SA, Krska R, Elliott CT. Advancing Mycotoxin Detection in Food and Feed: Novel Insights from Surface-Enhanced Raman Spectroscopy (SERS). ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2309625. [PMID: 38224595 DOI: 10.1002/adma.202309625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 12/20/2023] [Indexed: 01/17/2024]
Abstract
The implementation of low-cost and rapid technologies for the on-site detection of mycotoxin-contaminated crops is a promising solution to address the growing concerns of the agri-food industry. Recently, there have been significant developments in surface-enhanced Raman spectroscopy (SERS) for the direct detection of mycotoxins in food and feed. This review provides an overview of the most recent advancements in the utilization of SERS through the successful fabrication of novel nanostructured materials. Various bottom-up and top-down approaches have demonstrated their potential in improving sensitivity, while many applications exploit the immobilization of recognition elements and molecular imprinted polymers (MIPs) to enhance specificity and reproducibility in complex matrices. Therefore, the design and fabrication of nanomaterials is of utmost importance and are presented herein. This paper uncovers that limited studies establish detection limits or conduct validation using naturally contaminated samples. One decade on, SERS is still lacking significant progress and there is a disconnect between the technology, the European regulatory limits, and the intended end-user. Ongoing challenges and potential solutions are discussed including nanofabrication, molecular binders, and data analytics. Recommendations to assay design, portability, and substrate stability are made to help improve the potential and feasibility of SERS for future on-site agri-food applications.
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Affiliation(s)
- Natasha Logan
- National Measurement Laboratory, Centre of Excellence in Agriculture and Food Integrity, Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, UK
| | - Cuong Cao
- National Measurement Laboratory, Centre of Excellence in Agriculture and Food Integrity, Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, UK
- Material and Advanced Technologies for Healthcare, Queen's University Belfast, 18-30 Malone Road, Belfast, BT9 5BN, UK
| | - Stephan Freitag
- Department of Agrobiotechnology IFA-Tulln, Institute of Bioanalytics and Agro-Metabolomics, University of Natural Resources and Life Sciences, Konrad-Lorenz-Str. 20, Tulln, 3430, Vienna, Austria
- FFoQSI GmbH - Austrian Competence Centre for Feed and Food Quality, Safety and Innovation, Technopark 1C, Tulln, 3430, Austria
| | - Simon A Haughey
- National Measurement Laboratory, Centre of Excellence in Agriculture and Food Integrity, Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, UK
| | - Rudolf Krska
- National Measurement Laboratory, Centre of Excellence in Agriculture and Food Integrity, Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, UK
- Department of Agrobiotechnology IFA-Tulln, Institute of Bioanalytics and Agro-Metabolomics, University of Natural Resources and Life Sciences, Konrad-Lorenz-Str. 20, Tulln, 3430, Vienna, Austria
- FFoQSI GmbH - Austrian Competence Centre for Feed and Food Quality, Safety and Innovation, Technopark 1C, Tulln, 3430, Austria
| | - Christopher T Elliott
- National Measurement Laboratory, Centre of Excellence in Agriculture and Food Integrity, Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, UK
- School of Food Science and Technology, Faculty of Science and Technology, Thammasat University, 99 Mhu 18, Khong Luang, Pathum Thani, 12120, Thailand
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18
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Yus C, Gámez E, Arruebo M. Expert opinion on antimicrobial therapies: is there enough scientific evidence to state that targeted therapies outperform non-targeted ones? Expert Opin Drug Deliv 2024; 21:593-609. [PMID: 38619078 DOI: 10.1080/17425247.2024.2340661] [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: 11/28/2023] [Accepted: 04/04/2024] [Indexed: 04/16/2024]
Abstract
INTRODUCTION Different active and passive strategies have been developed to fight against pathogenic bacteria. Those actions are undertaken to reduce the bacterial burden while minimizing the possibilities to develop not only antimicrobial resistance but also antimicrobial side-effects such as allergic or hypersensitivity reactions. AREAS COVERED We have reviewed preclinical results that evidence that targeted antimicrobial therapies outperform non-targeted ones. Active selective targeting against pathogenic bacteria has been achieved through the functionalization of antimicrobials, either alone or encapsulated within micro- or nanocarriers, with various recognition moieties. These moieties include peptides, aptamers, antibodies, carbohydrates, extracellular vesicles, cell membranes, infective agents, and other affinity ligands with specific bacterial tropism. Those selective ligands increase retention and enhance effectiveness reducing the side-effects and the required dose to exert the antimicrobial action at the site of infection. EXPERT OPINION When using targeted antimicrobial therapies not only reduced side-effects are observed, but also, compared to the administration of equivalent doses of the non-targeted drugs, a superior efficacy has been demonstrated against planktonic, sessile, and intracellular pathogenic bacterial persisters. The translation of those targeted therapies to subsequent phases of clinical development still requires the demonstration of a reduction in the probabilities for the pathogen to develop resistance when using targeted approaches.
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Affiliation(s)
- Cristina Yus
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza, Spain
- Department of Chemical and Environmental Engineering, University of Zaragoza, Zaragoza, Spain
| | - Enrique Gámez
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza, Spain
- Department of Chemical and Environmental Engineering, University of Zaragoza, Zaragoza, Spain
| | - Manuel Arruebo
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza, Spain
- Department of Chemical and Environmental Engineering, University of Zaragoza, Zaragoza, Spain
- Aragon Health Research Institute (IIS Aragon), Zaragoza, Spain
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19
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Li PR, Kiran Boilla S, Wang CH, Lin PC, Kuo CN, Tsai TH, Lee GB. A self-driven, microfluidic, integrated-circuit biosensing chip for detecting four cardiovascular disease biomarkers. Biosens Bioelectron 2024; 249:115931. [PMID: 38215636 DOI: 10.1016/j.bios.2023.115931] [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: 09/22/2023] [Revised: 11/23/2023] [Accepted: 12/11/2023] [Indexed: 01/14/2024]
Abstract
Cardiovascular diseases (CVDs) claimed the lives of nearly 21 million people worldwide in 2021, accounting for 30% of global deaths. However, one in five CVD patients is unaware that they have the disease, emphasizing the need for accurate biomarker monitoring. Herein we developed an integrated microfluidic system (IMS) for rapid quantification of four CVD biomarkers, including N-terminal pro B-type natriuretic peptide (NT-proBNP), fibrinogen, cardiac troponin I (cTnI), and C-reactive protein (CRP)- via aptamer-coated interdigitated electrodes (IDE) with integrated circuits (IC) and a self-driven IMS for sample treatment. The device was composed of plasma filtration, metering, and fluidic delay modules, and the former could extract 45% of plasma from a 20-μL blood sample; the metering module could quantify 5 μL of plasma within 90 s. Subsequently, the plasma was transported to a detection chamber, where IC-based IDE sensors made measurements within 5 min. The entire 15-min process allowed us to evaluate biomarkers across a wide dynamic range: NT-proBNP (0.1-10,000 pg/mL), fibrinogen (50-1,000 mg/dL), cTnI (0.1-10,000 pg/mL), and CRP (0.5-9 mg/L). Given that spiked blood samples were measured with reasonable accuracy (>80%), the IMS could see utility in CVD risk assessment and personalized medicine.
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Affiliation(s)
- Pei-Rong Li
- Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Sasi Kiran Boilla
- Institute of Nanoengineering and Microsystems, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Chih-Hung Wang
- Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Pei-Chien Lin
- Department of Electronic Engineering, National Chung Cheng University, Chiayi, 62102, Taiwan
| | - Chien-Nan Kuo
- Institute of Electronics, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Tsung-Heng Tsai
- Industry Academy Innovation School, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan.
| | - Gwo-Bin Lee
- Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan; Institute of Nanoengineering and Microsystems, National Tsing Hua University, Hsinchu, 30013, Taiwan.
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20
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Austin TR, Fink HA, Jalal DI, Törnqvist AE, Buzkova P, Barzilay JI, Lu T, Carbone L, Gabrielsen ME, Grahnemo L, Hveem K, Jonasson C, Kizer JR, Langhammer A, Mukamal KJ, Gerszten RE, Nethander M, Psaty BM, Robbins JA, Sun YV, Skogholt AH, Åsvold BO, Valderrabano RJ, Zheng J, Richards JB, Coward E, Ohlsson C. Large-scale circulating proteome association study (CPAS) meta-analysis identifies circulating proteins and pathways predicting incident hip fractures. J Bone Miner Res 2024; 39:139-149. [PMID: 38477735 PMCID: PMC11070286 DOI: 10.1093/jbmr/zjad011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/09/2023] [Accepted: 11/23/2023] [Indexed: 03/14/2024]
Abstract
Hip fractures are associated with significant disability, high cost, and mortality. However, the exact biological mechanisms underlying susceptibility to hip fractures remain incompletely understood. In an exploratory search of the underlying biology as reflected through the circulating proteome, we performed a comprehensive Circulating Proteome Association Study (CPAS) meta-analysis for incident hip fractures. Analyses included 6430 subjects from two prospective cohort studies (Cardiovascular Health Study and Trøndelag Health Study) with circulating proteomics data (aptamer-based 5 K SomaScan version 4.0 assay; 4979 aptamers). Associations between circulating protein levels and incident hip fractures were estimated for each cohort using age and sex-adjusted Cox regression models. Participants experienced 643 incident hip fractures. Compared with the individual studies, inverse-variance weighted meta-analyses yielded more statistically significant associations, identifying 23 aptamers associated with incident hip fractures (conservative Bonferroni correction 0.05/4979, P < 1.0 × 10-5). The aptamers most strongly associated with hip fracture risk corresponded to two proteins of the growth hormone/insulin growth factor system (GHR and IGFBP2), as well as GDF15 and EGFR. High levels of several inflammation-related proteins (CD14, CXCL12, MMP12, ITIH3) were also associated with increased hip fracture risk. Ingenuity pathway analysis identified reduced LXR/RXR activation and increased acute phase response signaling to be overrepresented among those proteins associated with increased hip fracture risk. These analyses identified several circulating proteins and pathways consistently associated with incident hip fractures. These findings underscore the usefulness of the meta-analytic approach for comprehensive CPAS in a similar manner as has previously been observed for large-scale human genetic studies. Future studies should investigate the underlying biology of these potential novel drug targets.
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Affiliation(s)
- Thomas R Austin
- Cardiovascular Health Research Unit, University of Washington, Seattle, WA, 98195, United States
| | - Howard A Fink
- Geriatric Research Education and Clinical Center, VA Health Care System, Minneapolis, MN, 56401, United States
| | - Diana I Jalal
- Division of Nephrology, Department of Internal Medicine, Carver College of Medicine, Iowa City, IA, 52242, United States
- Iowa City VA Medical Center, Iowa City, IA, 52246, United States
| | - Anna E Törnqvist
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research at the Sahlgrenska Academy, University of Gothenburg, 413 45, Gothenburg, Sweden
| | - Petra Buzkova
- Department of Biostatistics, University of Washington, Seattle, WA, 98115, United States
| | - Joshua I Barzilay
- Division of Endocrinology, Kaiser Permanente of Georgia, Atlanta, GA, 30339, United States
| | - Tianyuan Lu
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, H3T 1E2, Canada
- Quantitative Life Sciences Program, McGill University, Montreal, Quebec, H3G 0B1, Canada
- 5 Prime Sciences Inc, Montreal, Quebec, H3Y 2W4, Canada
| | - Laura Carbone
- Charlie Norwood VAMC, Augusta, GA, 30901, United States
- Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA, 30912, United States
| | - Maiken E Gabrielsen
- Department of Public Health and Nursing, K.G. Jebsen Center for Genetic Epidemiology, Norwegian University of Science and Technology, 7491, Trondheim, Norway
| | - Louise Grahnemo
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research at the Sahlgrenska Academy, University of Gothenburg, 413 45, Gothenburg, Sweden
| | - Kristian Hveem
- Department of Public Health and Nursing, K.G. Jebsen Center for Genetic Epidemiology, Norwegian University of Science and Technology, 7491, Trondheim, Norway
- HUNT Research Centre, NTNU, 7600, Levanger, Norway
| | - Christian Jonasson
- Department of Public Health and Nursing, K.G. Jebsen Center for Genetic Epidemiology, Norwegian University of Science and Technology, 7491, Trondheim, Norway
| | - Jorge R Kizer
- Cardiology Section, San Francisco VA Health Care System, San Francisco, CA, 94121, United States
- Department of Medicine, Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, 94158, United States
| | - Arnulf Langhammer
- HUNT Research Centre, NTNU, 7600, Levanger, Norway
- Levanger Hospital, Nord-Trøndelag Hospital Trust, 7600, Levanger, Norway
| | - Kenneth J Mukamal
- Department of Medicine, Beth Israel Deaconess Medical Center, Brookline, MA, 2446, United States
| | - Robert E Gerszten
- Department of Medicine, Beth Israel Deaconess Medical Center, Brookline, MA, 2446, United States
| | - Maria Nethander
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research at the Sahlgrenska Academy, University of Gothenburg, 413 45, Gothenburg, Sweden
- Bioinformatics and Data Center, Sahlgrenska Academy, University of Gothenburg, 413 90, Gothenburg, Sweden
| | - Bruce M Psaty
- Cardiovascular Health Research Unit, University of Washington, Seattle, WA, 98195, United States
- Departments of Medicine, Epidemiology, and Health Systems and Population Health, University of Washington, Seattle, WA, 98195, United States
| | - John A Robbins
- Department of Medicine, University of California, Davis, CA, 95817, United States
| | - Yan V Sun
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, 30322, United States
| | - Anne Heidi Skogholt
- Department of Public Health and Nursing, K.G. Jebsen Center for Genetic Epidemiology, Norwegian University of Science and Technology, 7491, Trondheim, Norway
| | - Bjørn Olav Åsvold
- Department of Public Health and Nursing, K.G. Jebsen Center for Genetic Epidemiology, Norwegian University of Science and Technology, 7491, Trondheim, Norway
- Department of Endocrinology, Clinic of Medicine, St. Olavs Hospital, Trondheim University Hospital, 7491, Trondheim, Norway
| | - Rodrigo J Valderrabano
- Research Program in Men’s Health, Aging and Metabolism, Harvard Medical School, Brigham and Women’s Hospital, Boston, MA, 2130, United States
| | - Jie Zheng
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Jiao Tong University School of Medicine, Ruijin Hospital, Shanghai, 200025, China
- Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, Shanghai National Clinical Research Center for Metabolic Diseases, Shanghai Digital Medicine Innovation Center, Shanghai Jiao Tong University School of Medicine, Ruijin Hospital, Shanghai, 200025, China
- MRC Integrative Epidemiology Unit (IEU), Bristol Medical School, University of Bristol, Oakfield House, Bristol, BS8 2BN, United Kingdom
| | - J Brent Richards
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, H3T 1E2, Canada
- 5 Prime Sciences Inc, Montreal, Quebec, H3Y 2W4, Canada
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada
- Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, Quebec, Canada
- Department of Medicine, McGill University, Montreal, Quebec, H4A 3J1, Canada
- Department of Twin Research, King’s College London, London, SE1 7EH, United Kingdom
| | - Eivind Coward
- Department of Public Health and Nursing, K.G. Jebsen Center for Genetic Epidemiology, Norwegian University of Science and Technology, 7491, Trondheim, Norway
| | - Claes Ohlsson
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research at the Sahlgrenska Academy, University of Gothenburg, 413 45, Gothenburg, Sweden
- Department of Drug Treatment, Region Västra Götaland, Sahlgrenska University Hospital, 413 45, Gothenburg, Sweden
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21
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Mahmoudian F, Ahmari A, Shabani S, Sadeghi B, Fahimirad S, Fattahi F. Aptamers as an approach to targeted cancer therapy. Cancer Cell Int 2024; 24:108. [PMID: 38493153 PMCID: PMC10943855 DOI: 10.1186/s12935-024-03295-4] [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: 11/28/2023] [Accepted: 03/06/2024] [Indexed: 03/18/2024] Open
Abstract
Conventional cancer treatments can cause serious side effects because they are not specific to cancer cells and can damage healthy cells. Aptamers often are single-stranded oligonucleotides arranged in a unique architecture, allowing them to bind specifically to target sites. This feature makes them an ideal choice for targeted therapeutics. They are typically produced through the systematic evolution of ligands by exponential enrichment (SELEX) and undergo extensive pharmacological revision to modify their affinity, specificity, and therapeutic half-life. Aptamers can act as drugs themselves, directly inhibiting tumor cells. Alternatively, they can be used in targeted drug delivery systems to transport drugs directly to tumor cells, minimizing toxicity to healthy cells. In this review, we will discuss the latest and most advanced approaches to using aptamers for cancer treatment, particularly targeted therapy overcoming resistance to conventional therapies.
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Affiliation(s)
- Fatemeh Mahmoudian
- Cancer Research Center, Semnan University of Medical Sciences, Semnan, Iran
- Clinical Research Development Unit of Ayatollah-Khansari Hospital, Arak University of Medical Sciences, Arak, Iran
| | - Azin Ahmari
- Clinical Research Development Unit of Ayatollah-Khansari Hospital, Arak University of Medical Sciences, Arak, Iran
- Department of Radiation Oncology, School of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Shiva Shabani
- Clinical Research Development Unit of Ayatollah-Khansari Hospital, Arak University of Medical Sciences, Arak, Iran
- Department of Infectious Diseases, School of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Bahman Sadeghi
- Clinical Research Development Unit of Ayatollah-Khansari Hospital, Arak University of Medical Sciences, Arak, Iran
- Department of Community Medicine, School of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Shohreh Fahimirad
- Molecular and Medicine Research Center, Arak University of Medical Sciences, Arak, Iran.
| | - Fahimeh Fattahi
- Clinical Research Development Unit of Ayatollah-Khansari Hospital, Arak University of Medical Sciences, Arak, Iran.
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran.
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22
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Ghosh Dastidar M, Murugappan K, R Nisbet D, Tricoli A. Simultaneous electrochemical detection of glycated and human serum albumin for diabetes management. Biosens Bioelectron 2024; 246:115876. [PMID: 38039734 DOI: 10.1016/j.bios.2023.115876] [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: 09/18/2023] [Revised: 10/26/2023] [Accepted: 11/22/2023] [Indexed: 12/03/2023]
Abstract
Developing highly selective and sensitive biosensors for diabetes management blood glucose monitoring is essential to reduce the health risks associated with diabetes. Assessing the glycation (GA) of human serum albumin (HSA) serves as an indicator for medium-term glycemic control, making it suitable for assessing the efficacy of blood glucose management protocols. However, most biosensors are not capable of simultaneous detection of the relative fraction of GA to HSA in a clinically relevant range. Here, we report an effective miniaturised biosensor architecture for simultaneous electrochemical detection of HSA and GA across relevant concentration ranges. We immobilise DNA aptamers specific for the detection of HSA and GA on gold nanoislands (Au NIs) decorated screen-printed carbon electrodes (SPCEs), and effectively passivate the residual surface sites. We achieve a dynamic detection range between 20 and 60 mg/mL for HSA and 1-40 mg/mL for GA in buffer solutions. The analytical utility of our HSA and GA biosensor architectures are validated in mice serum indicating immediate potential for clinical applications. Since HSA and GA have similar structures, we extensively assess our sensor specificity, observing high selectivity of the HSA and GA sensors against each other and other commonly present interfering molecules in blood such as glucose, glycine, ampicillin, and insulin. Additionally, we determine the glycation ratio, which is a crucial metric for assessing blood glucose management efficacy, in an extensive range representing healthy and poor blood glucose management profiles. These findings provide strong evidence for the clinical potential of our biosensor architecture for point-of-care and self-assessment of diabetes management protocols.
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Affiliation(s)
- Monalisha Ghosh Dastidar
- Nanotechnology Research Laboratory, Research School of Chemistry, College of Science, Australian National University, Canberra, ACT, 2601, Australia
| | - Krishnan Murugappan
- Nanotechnology Research Laboratory, Research School of Chemistry, College of Science, Australian National University, Canberra, ACT, 2601, Australia; CSIRO, Mineral Resources, Private Bag 10, Clayton South, Victoria, 3169, Australia.
| | - David R Nisbet
- The Graeme Clark Institute, The University of Melbourne, Melbourne, Australia; Department of Biomedical Engineering, Faculty of Engineering and Information Technology, The University of Melbourne, Melbourne, Australia; Melbourne Medical School, Faculty of Medicine, Dentistry and Health Science, The University of Melbourne, Melbourne, Australia
| | - Antonio Tricoli
- Nanotechnology Research Laboratory, Research School of Chemistry, College of Science, Australian National University, Canberra, ACT, 2601, Australia; Nanotechnology Research Laboratory, Faculty of Engineering, University of Sydney, Sydney, NSW, 2006, Australia.
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23
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Pham ML, Maghsoomi S, Brandl M. An Electrochemical Aptasensor for the Detection of Freshwater Cyanobacteria. BIOSENSORS 2024; 14:28. [PMID: 38248405 PMCID: PMC10813013 DOI: 10.3390/bios14010028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/20/2023] [Accepted: 12/20/2023] [Indexed: 01/23/2024]
Abstract
Aphanizomenon is a genus of cyanobacteria that is filamentous and nitrogen-fixing and inhabits aquatic environments. This genus is known as one of the major producers of cyanotoxins that can affect water quality after the bloom period. In this study, an electrochemical aptasensor is demonstrated using a specific aptamer to detect Aphanizomenon sp. ULC602 for the rapid and sensitive detection of this bacterium. The principal operation of the generated aptasensor is based on the conformational change in the aptamer attached to the electrode surface in the presence of the target bacterium, resulting in a decrease in the current peak, which is measured by square-wave voltammetry (SWV). This aptasensor has a limit of detection (LOD) of OD750~0.3, with an extension to OD750~1.2 and a sensitivity of 456.8 μA·OD750-1·cm-2 without interference from other cyanobacteria. This is the first aptasensor studied that provides rapid detection to monitor the spread of this bacterium quickly in a targeted manner.
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Affiliation(s)
- Mai-Lan Pham
- Center for Water and Environmental Sensors, Department for Integrated Sensor Systems, University for Continuing Education Krems, Dr.-Karl-Dorrek-Straße 30, 3500 Krems an der Donau, Austria; (S.M.); (M.B.)
| | - Somayeh Maghsoomi
- Center for Water and Environmental Sensors, Department for Integrated Sensor Systems, University for Continuing Education Krems, Dr.-Karl-Dorrek-Straße 30, 3500 Krems an der Donau, Austria; (S.M.); (M.B.)
- Institute of Specific Prophylaxis and Tropical Medicine, Medical University of Vienna, Kinderspitalgasse 15, 1090 Vienna, Austria
| | - Martin Brandl
- Center for Water and Environmental Sensors, Department for Integrated Sensor Systems, University for Continuing Education Krems, Dr.-Karl-Dorrek-Straße 30, 3500 Krems an der Donau, Austria; (S.M.); (M.B.)
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24
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Farka Z, Brandmeier JC, Mickert MJ, Pastucha M, Lacina K, Skládal P, Soukka T, Gorris HH. Nanoparticle-Based Bioaffinity Assays: From the Research Laboratory to the Market. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2307653. [PMID: 38039956 DOI: 10.1002/adma.202307653] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 11/16/2023] [Indexed: 12/03/2023]
Abstract
Advances in the development of new biorecognition elements, nanoparticle-based labels as well as instrumentation have inspired the design of new bioaffinity assays. This review critically discusses the potential of nanoparticles to replace current enzymatic or molecular labels in immunoassays and other bioaffinity assays. Successful implementations of nanoparticles in commercial assays and the need for rapid tests incorporating nanoparticles in different roles such as capture support, signal generation elements, and signal amplification systems are highlighted. The limited number of nanoparticles applied in current commercial assays can be explained by challenges associated with the analysis of real samples (e.g., blood, urine, or nasal swabs) that are difficult to resolve, particularly if the same performance can be achieved more easily by conventional labels. Lateral flow assays that are based on the visual detection of the red-colored line formed by colloidal gold are a notable exception, exemplified by SARS-CoV-2 rapid antigen tests that have moved from initial laboratory testing to widespread market adaption in less than two years.
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Affiliation(s)
- Zdeněk Farka
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic
| | - Julian C Brandmeier
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, Universitätsstr. 31, 93053, Regensburg, Germany
| | | | - Matěj Pastucha
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic
- TestLine Clinical Diagnostics, Křižíkova 188, Brno, 612 00, Czech Republic
| | - Karel Lacina
- CEITEC-Central European Institute of Technology, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic
| | - Petr Skládal
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic
| | - Tero Soukka
- Department of Life Technologies/Biotechnology, University of Turku, Kiinamyllynkatu 10, Turku, 20520, Finland
| | - Hans H Gorris
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic
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25
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Cusano AM, Quero G, Vaiano P, Cicatiello P, Principe M, Micco A, Ruvo M, Consales M, Cusano A. Metasurface-assisted Lab-on-fiber optrode for highly sensitive detection of vitamin D. Biosens Bioelectron 2023; 242:115717. [PMID: 37801838 DOI: 10.1016/j.bios.2023.115717] [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: 05/11/2023] [Revised: 09/18/2023] [Accepted: 09/28/2023] [Indexed: 10/08/2023]
Abstract
The increasing demand for vitamin D status assessment has highlighted the need for rapid, sensitive, and user-friendly methods for its detection in biological samples potentially integrated in Point-of-Care (PoC) diagnostic devices. Detection of the major circulating form of vitamin D, 25-hydroxyvitamin D3-25(OH)D3, is particularly challenging due to the laborious procedures for sample preparation and its low molecular weight (∼400 Da), which requires highly sensitive detection methods. In this study, we developed a novel label-free Lab-on-Fiber biosensing platform for highly sensitive detection of 25(OH)D3 based on the integration of plasmonic metasurfaces (MSs) on the tip of a single-mode optical fiber (OF). A dedicated pipeline was carefully designed and developed to optimize the bio-functionalization of the plasmonic sensor tip to specifically detect the target biomolecule. The resulting MS-assisted Lab-on-fiber platform enables direct and highly sensitive detection of 25(OH)D3 in clinically relevant ranges (4-160 ng/mL), both in buffer solution and complex matrix, with limits of detection (LOD) of 1.40 ng/mL in saline buffer and 0.85 ng/mL in complex matrix. Overall, these results demonstrate that our platform can successfully and specifically detect small molecules in label-free configuration, with performances comparable to those of conventional methods used in clinical practice. The high degree of miniaturization combined with its high sensitivity makes our platform an exceptional building block for realizing valid diagnostic alternatives for label-free detection of clinically relevant analytes, which can be transformed into new low-cost, fast, simple, and ready-to-use PoC diagnostic devices with improved processability and performance compared to current methods.
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Affiliation(s)
- A M Cusano
- Centro Regionale Information Communication Technology (CeRICT) scrl, I-82100, Benevento, Italy
| | - G Quero
- Optoelectronics Group, Engineering Department, University of Sannio, I-82100, Benevento, Italy; Bioscience and Territory Department, University of Molise, I-86090, Pesche, Italy
| | - P Vaiano
- Optoelectronics Group, Engineering Department, University of Sannio, I-82100, Benevento, Italy
| | - P Cicatiello
- Optoelectronics Group, Engineering Department, University of Sannio, I-82100, Benevento, Italy; Department of Chemical Sciences, University of Naples Federico II, I-80126, Napoli, Italy
| | - M Principe
- Optoelectronics Group, Engineering Department, University of Sannio, I-82100, Benevento, Italy
| | - A Micco
- Centro Regionale Information Communication Technology (CeRICT) scrl, I-82100, Benevento, Italy
| | - M Ruvo
- Institute of Biostructure and Bioimaging, National Research Council, I-80131, Napoli, Italy
| | - M Consales
- Centro Regionale Information Communication Technology (CeRICT) scrl, I-82100, Benevento, Italy; Optoelectronics Group, Engineering Department, University of Sannio, I-82100, Benevento, Italy.
| | - A Cusano
- Centro Regionale Information Communication Technology (CeRICT) scrl, I-82100, Benevento, Italy; Optoelectronics Group, Engineering Department, University of Sannio, I-82100, Benevento, Italy.
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Lafi Z, Gharaibeh L, Nsairat H, Asha N, Alshaer W. Aptasensors: employing molecular probes for precise medical diagnostics and drug monitoring. Bioanalysis 2023; 15:1439-1460. [PMID: 37847048 DOI: 10.4155/bio-2023-0141] [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] [Indexed: 10/18/2023] Open
Abstract
Accurate detection and monitoring of therapeutic drug levels are vital for effective patient care and treatment management. Aptamers, composed of single-stranded DNA or RNA molecules, are integral components of biosensors designed for both qualitative and quantitative detection of biological samples. Aptasensors play crucial roles in target identification, validation, detection of drug-target interactions and screening potential of drug candidates. This review focuses on the pivotal role of aptasensors in early disease detection, particularly in identifying biomarkers associated with various diseases such as cancer, infectious diseases and cardiovascular disorders. Aptasensors have demonstrated exceptional potential in enhancing disease diagnostics and monitoring therapeutic drug levels. Aptamer-based biosensors represent a transformative technology in the field of healthcare, enabling precise diagnostics, drug monitoring and disease detection.
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Affiliation(s)
- Zainab Lafi
- Pharmacological & Diagnostic Research Center, Faculty of Pharmacy, Al-Ahliyya Amman University, Amman, 19328, Jordan
| | - Lobna Gharaibeh
- Pharmacological & Diagnostic Research Center, Faculty of Pharmacy, Al-Ahliyya Amman University, Amman, 19328, Jordan
| | - Hamdi Nsairat
- Pharmacological & Diagnostic Research Center, Faculty of Pharmacy, Al-Ahliyya Amman University, Amman, 19328, Jordan
| | - Nisreen Asha
- Cell Therapy Center, The University of Jordan, Amman, 11942, Jordan
| | - Walhan Alshaer
- Cell Therapy Center, The University of Jordan, Amman, 11942, Jordan
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27
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Sequeira-Antunes B, Ferreira HA. Nucleic Acid Aptamer-Based Biosensors: A Review. Biomedicines 2023; 11:3201. [PMID: 38137422 PMCID: PMC10741014 DOI: 10.3390/biomedicines11123201] [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: 10/20/2023] [Revised: 11/23/2023] [Accepted: 11/29/2023] [Indexed: 12/24/2023] Open
Abstract
Aptamers, short strands of either DNA, RNA, or peptides, known for their exceptional specificity and high binding affinity to target molecules, are providing significant advancements in the field of health. When seamlessly integrated into biosensor platforms, aptamers give rise to aptasensors, unlocking a new dimension in point-of-care diagnostics with rapid response times and remarkable versatility. As such, this review aims to present an overview of the distinct advantages conferred by aptamers over traditional antibodies as the molecular recognition element in biosensors. Additionally, it delves into the realm of specific aptamers made for the detection of biomarkers associated with infectious diseases, cancer, cardiovascular diseases, and metabolomic and neurological disorders. The review further elucidates the varying binding assays and transducer techniques that support the development of aptasensors. Ultimately, this review discusses the current state of point-of-care diagnostics facilitated by aptasensors and underscores the immense potential of these technologies in advancing the landscape of healthcare delivery.
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Affiliation(s)
- Beatriz Sequeira-Antunes
- Institute of Biophysics and Biomedical Engineering, Faculty of Sciences, University of Lisbon, Campo Grande, 1749-016 Lisboa, Portugal
- Exotictarget, 4900-378 Viana do Castelo, Portugal
- Instituto de Engenharia de Sistemas e Computadores-Microsistemas e Nanotecnologias (INESC-MN), 1000-029 Lisbon, Portugal
| | - Hugo Alexandre Ferreira
- Institute of Biophysics and Biomedical Engineering, Faculty of Sciences, University of Lisbon, Campo Grande, 1749-016 Lisboa, Portugal
- Exotictarget, 4900-378 Viana do Castelo, Portugal
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28
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Liu MS, Zhong SS, Jiang S, Wang T, Zhang KH. Bibliometric analysis of aptamer-conjugated nanoparticles for diagnosis in the last two decades. NANOTECHNOLOGY 2023; 35:055102. [PMID: 37879319 DOI: 10.1088/1361-6528/ad06d5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 10/25/2023] [Indexed: 10/27/2023]
Abstract
Objective.Aptamer-conjugated nanoparticles for diagnosis have recently gained increasing attention. Here, we performed a bibliometric analysis to provide an overview of this field over the past two decades.Methods. The terms 'aptamer, nanoparticles and diagnosis' were used to search for relevant original articles published in English from 2003 to 2022 in the Web of Science database. VOSviewer and CiteSpace software were employed to analyze the development process, knowledge structure, research hotspots, and potential trends in the field of aptamer-conjugated nanoparticles for diagnosis.Results. A total of 1076 original articles were retrieved, with a rapid increase in the annual output and citation. The journal 'Biosensors and Bioelectronics' has contributed the most in this field, and the most influential researcher, institution and country were Weihong Tan, the Chinese Academy of Sciences, China, respectively. Gold nanoparticles and quantum dots were the most used, but in the past three years, research hotspots focused on carbon dots and graphene quantum dots. Diagnostic directions primarily focused on cancer. The most used strategy was label-free electrochemical detection, but in the past two years, colorimetric analysis and fluorescence imaging emerged as hot topics.Conclusion.The bibliometric analysis reveals a rapid increase in the research on aptamer-conjugated nanoparticles for diagnosis, major contributors at the levels of journals, authors, institutions, and countries, and research preferences in diagnostic objects, nanoparticle types, and detection methods, as well as the evolution of research hotspots and future trends.
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Affiliation(s)
- Mao-Sheng Liu
- Department of Gastroenterology, Jiangxi Institute of Gastroenterology & Hepatology, the First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Si-Si Zhong
- Department of Quality and Safety Management, the First Affiliated Hospital of Gannan Medical University, Ganzhou, People's Republic of China
| | - Song Jiang
- Department of Gastroenterology, Jiangxi Institute of Gastroenterology & Hepatology, the First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Ting Wang
- Department of Gastroenterology, Jiangxi Institute of Gastroenterology & Hepatology, the First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Kun-He Zhang
- Department of Gastroenterology, Jiangxi Institute of Gastroenterology & Hepatology, the First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
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Myres GJ, Kitt JP, Harris JM. Raman Scattering Reveals Ion-Dependent G-Quadruplex Formation in the 15-mer Thrombin-Binding Aptamer upon Association with α-Thrombin. Anal Chem 2023; 95:16160-16168. [PMID: 37870982 DOI: 10.1021/acs.analchem.3c02751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
The discovery of DNA aptamers that bind biomolecular targets has enabled significant innovations in biosensing. Aptamers form secondary structures that exhibit selective high-affinity interactions with their binding partners. The binding of its target by an aptamer is often accompanied by conformational changes, and sensing by aptamers often relies on these changes to provide readout signals from extrinsic labels to detect target association. Many biosensing applications involve aptamers immobilized to surfaces, but methods to characterize conformations of immobilized aptamers and their in situ response have been lacking. To address this challenge, we have developed a structurally informative Raman spectroscopy method to determine conformations of the 15-mer thrombin-binding aptamer (TBA) immobilized on porous silica surfaces. The TBA is of interest because its binding of α-thrombin depends on the aptamer forming an antiparallel G-quadruplex, which is thought to drive signal changes that allow thrombin-binding to be detected. However, specific metal cations also stabilize the G-quadruplex conformation of the aptamer, even in the absence of its protein target. To develop a deeper understanding of the conformational response of the TBA, we utilize Raman spectroscopy to quantify the effects of the metal cations, K+ (stabilizing) and Li+ (nonstabilizing), on G-quadruplex versus unfolded populations of the TBA. In K+ or Li+ solutions, we then detect the association of α-thrombin with the immobilized aptamer, which can be observed in Raman scattering from the bound protein. The results show that the association of α-thrombin in K+ solutions produces no detectable change in aptamer conformation, which is found in the G-quadruplex form both before and after binding its target. In Li+ solutions, however, where the TBA is unfolded prior to α-thrombin association, protein binding occurs with the formation of a G-quadruplex by the aptamer.
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Affiliation(s)
- Grant J Myres
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-0850, United States
| | - Jay P Kitt
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-0850, United States
| | - Joel M Harris
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-0850, United States
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Jabbari A, Sameiyan E, Yaghoobi E, Ramezani M, Alibolandi M, Abnous K, Taghdisi SM. Aptamer-based targeted delivery systems for cancer treatment using DNA origami and DNA nanostructures. Int J Pharm 2023; 646:123448. [PMID: 37757957 DOI: 10.1016/j.ijpharm.2023.123448] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 09/14/2023] [Accepted: 09/24/2023] [Indexed: 09/29/2023]
Abstract
Due to the limitations of conventional cancer treatment methods, nanomedicine has appeared as a promising alternative, allowing improved drug targeting and decreased drug toxicity. In the development of cancer nanomedicines, among various nanoparticles (NPs), DNA nanostructures are more attractive because of their precisely controllable size, shape, excellent biocompatibility, programmability, biodegradability, and facile functionalization. Aptamers are introduced as single-stranded RNA or DNA molecules with recognize their corresponding targets. So, incorporating aptamers into DNA nanostructures led to influential vehicles for bioimaging and biosensing as well as targeted cancer therapy. In this review, the recent developments in the application of aptamer-based DNA origami and DNA nanostructures in advanced cancer treatment have been highlighted. Some of the main methods of cancer treatment are classified as chemo-, gene-, photodynamic- and combined therapy. Finally, the opportunities and problems for targeted DNA aptamer-based nanocarriers for medicinal applications have also been discussed.
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Affiliation(s)
- Atena Jabbari
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Elham Sameiyan
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran; Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Elnaz Yaghoobi
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, ON K1N 6N5, Canada
| | - Mohammad Ramezani
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mona Alibolandi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khalil Abnous
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Seyed Mohammad Taghdisi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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Le K, Kannappan S, Kim T, Lee JH, Lee HR, Kim KK. Structural understanding of SARS-CoV-2 virus entry to host cells. Front Mol Biosci 2023; 10:1288686. [PMID: 38033388 PMCID: PMC10683510 DOI: 10.3389/fmolb.2023.1288686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 10/16/2023] [Indexed: 12/02/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is a major global health concern associated with millions of fatalities worldwide. Mutant variants of the virus have further exacerbated COVID-19 mortality and infection rates, emphasizing the urgent need for effective preventive strategies. Understanding the viral infection mechanism is crucial for developing therapeutics and vaccines. The entry of SARS-CoV-2 into host cells is a key step in the infection pathway and has been targeted for drug development. Despite numerous reviews of COVID-19 and the virus, there is a lack of comprehensive reviews focusing on the structural aspects of viral entry. In this review, we analyze structural changes in Spike proteins during the entry process, dividing the entry process into prebinding, receptor binding, proteolytic cleavage, and membrane fusion steps. By understanding the atomic-scale details of viral entry, we can better target the entry step for intervention strategies. We also examine the impacts of mutations in Spike proteins, including the Omicron variant, on viral entry. Structural information provides insights into the effects of mutations and can guide the development of therapeutics and vaccines. Finally, we discuss available structure-based approaches for the development of therapeutics and vaccines. Overall, this review provides a detailed analysis of the structural aspects of SARS-CoV-2 viral entry, highlighting its significance in the development of therapeutics and vaccines against COVID-19. Therefore, our review emphasizes the importance of structural information in combating SARS-CoV-2 infection.
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Affiliation(s)
- Kim Le
- Department of Precision Medicine, Sungkyunkwan University School of Medicine, Institute of Antibacterial Resistance Research and Therapeutics, Sungkyunkwan University, Suwon, Republic of Korea
| | - Shrute Kannappan
- Department of Precision Medicine, Sungkyunkwan University School of Medicine, Institute of Antibacterial Resistance Research and Therapeutics, Sungkyunkwan University, Suwon, Republic of Korea
- Research Center for Advanced Materials Technology Core Research Institute, Suwon, Republic of Korea
| | - Truc Kim
- Department of Precision Medicine, Sungkyunkwan University School of Medicine, Institute of Antibacterial Resistance Research and Therapeutics, Sungkyunkwan University, Suwon, Republic of Korea
| | - Jung Heon Lee
- Research Center for Advanced Materials Technology Core Research Institute, Suwon, Republic of Korea
- School of Advanced Materials and Science Engineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Hye-Ra Lee
- Department of Biotechnology and Bioinformatics, College of Science and Technology, Korea University, Sejong, Republic of Korea
| | - Kyeong Kyu Kim
- Department of Precision Medicine, Sungkyunkwan University School of Medicine, Institute of Antibacterial Resistance Research and Therapeutics, Sungkyunkwan University, Suwon, Republic of Korea
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Lee M, Shin S, Kim S, Park N. Recent Advances in Biological Applications of Aptamer-Based Fluorescent Biosensors. Molecules 2023; 28:7327. [PMID: 37959747 PMCID: PMC10647268 DOI: 10.3390/molecules28217327] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/24/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023] Open
Abstract
Aptamers have been spotlighted as promising bio-recognition elements because they can be tailored to specific target molecules, bind to targets with a high affinity and specificity, and are easy to chemically synthesize and introduce functional groups to. In particular, fluorescent aptasensors are widely used in biological applications to diagnose diseases as well as prevent diseases by detecting cancer cells, viruses, and various biomarkers including nucleic acids and proteins as well as biotoxins and bacteria from food because they have the advantages of a high sensitivity, selectivity, rapidity, a simple detection process, and a low price. We introduce screening methods for isolating aptamers with q high specificity and summarize the sequences and affinities of the aptamers in a table. This review focuses on aptamer-based fluorescence detection sensors for biological applications, from fluorescent probes to mechanisms of action and signal amplification strategies.
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Affiliation(s)
- Minhyuk Lee
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, Republic of Korea; (M.L.); (S.K.)
| | - Seonhye Shin
- Department of Chemistry, The Natural Science Research Institute, Myongji University, 116 Myongji-ro, Yongin-si 17058, Republic of Korea;
| | - Sungjee Kim
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, Republic of Korea; (M.L.); (S.K.)
| | - Nokyoung Park
- Department of Chemistry, The Natural Science Research Institute, Myongji University, 116 Myongji-ro, Yongin-si 17058, Republic of Korea;
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Ivanov YD, Malsagova KA, Goldaeva KV, Pleshakova TO, Kozlov AF, Galiullin RA, Shumov ID, Popov VP, Abramova IK, Ziborov VS, Petrov OF, Dolgoborodov AY, Archakov AI. The Study of Performance of a Nanoribbon Biosensor, Sensitized with Aptamers and Antibodies, upon Detection of Core Antigen of Hepatitis C Virus. MICROMACHINES 2023; 14:1946. [PMID: 37893383 PMCID: PMC10609547 DOI: 10.3390/mi14101946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/09/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023]
Abstract
The development of highly sensitive diagnostic systems for the early revelation of diseases in humans is one of the most important tasks of modern biomedical research, and the detection of the core antigen of the hepatitis C virus (HCVcoreAg)-a protein marker of the hepatitis C virus-is just the case. Our study is aimed at testing the performance of the nanoribbon biosensor in the case of the use of two different types of molecular probes: the antibodies and the aptamers against HCVcoreAg. The nanoribbon sensor chips employed are based on "silicon-on-insulator structures" (SOI-NR). Two different HCVcoreAg preparations are tested: recombinant β-galactosidase-conjugated HCVcoreAg ("Virogen", Watertown, MA, USA) and recombinant HCVcoreAg ("Vector-Best", Novosibirsk, Russia). Upon the detection of either type of antigen preparation, the lowest concentration of the antigen detectable in buffer with pH 5.1 was found to be approximately equal, amounting to ~10-15 M. This value was similar upon the use of either type of molecular probes.
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Affiliation(s)
- Yuri D. Ivanov
- Institute of Biomedical Chemistry (IBMC), 119121 Moscow, Russia; (Y.D.I.); (K.A.M.); (T.O.P.); (A.F.K.); (R.A.G.); (I.D.S.); (I.K.A.); (V.S.Z.); (A.I.A.)
- Joint Institute for High Temperatures of Russian Academy of Sciences, 125412 Moscow, Russia; (O.F.P.); (A.Y.D.)
| | - Kristina A. Malsagova
- Institute of Biomedical Chemistry (IBMC), 119121 Moscow, Russia; (Y.D.I.); (K.A.M.); (T.O.P.); (A.F.K.); (R.A.G.); (I.D.S.); (I.K.A.); (V.S.Z.); (A.I.A.)
| | - Kristina V. Goldaeva
- Institute of Biomedical Chemistry (IBMC), 119121 Moscow, Russia; (Y.D.I.); (K.A.M.); (T.O.P.); (A.F.K.); (R.A.G.); (I.D.S.); (I.K.A.); (V.S.Z.); (A.I.A.)
| | - Tatyana O. Pleshakova
- Institute of Biomedical Chemistry (IBMC), 119121 Moscow, Russia; (Y.D.I.); (K.A.M.); (T.O.P.); (A.F.K.); (R.A.G.); (I.D.S.); (I.K.A.); (V.S.Z.); (A.I.A.)
| | - Andrey F. Kozlov
- Institute of Biomedical Chemistry (IBMC), 119121 Moscow, Russia; (Y.D.I.); (K.A.M.); (T.O.P.); (A.F.K.); (R.A.G.); (I.D.S.); (I.K.A.); (V.S.Z.); (A.I.A.)
| | - Rafael A. Galiullin
- Institute of Biomedical Chemistry (IBMC), 119121 Moscow, Russia; (Y.D.I.); (K.A.M.); (T.O.P.); (A.F.K.); (R.A.G.); (I.D.S.); (I.K.A.); (V.S.Z.); (A.I.A.)
| | - Ivan D. Shumov
- Institute of Biomedical Chemistry (IBMC), 119121 Moscow, Russia; (Y.D.I.); (K.A.M.); (T.O.P.); (A.F.K.); (R.A.G.); (I.D.S.); (I.K.A.); (V.S.Z.); (A.I.A.)
| | - Vladimir P. Popov
- Rzhanov Institute of Semiconductor Physics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia;
| | - Irina K. Abramova
- Institute of Biomedical Chemistry (IBMC), 119121 Moscow, Russia; (Y.D.I.); (K.A.M.); (T.O.P.); (A.F.K.); (R.A.G.); (I.D.S.); (I.K.A.); (V.S.Z.); (A.I.A.)
| | - Vadim S. Ziborov
- Institute of Biomedical Chemistry (IBMC), 119121 Moscow, Russia; (Y.D.I.); (K.A.M.); (T.O.P.); (A.F.K.); (R.A.G.); (I.D.S.); (I.K.A.); (V.S.Z.); (A.I.A.)
- Joint Institute for High Temperatures of Russian Academy of Sciences, 125412 Moscow, Russia; (O.F.P.); (A.Y.D.)
| | - Oleg F. Petrov
- Joint Institute for High Temperatures of Russian Academy of Sciences, 125412 Moscow, Russia; (O.F.P.); (A.Y.D.)
| | - Alexander Yu. Dolgoborodov
- Joint Institute for High Temperatures of Russian Academy of Sciences, 125412 Moscow, Russia; (O.F.P.); (A.Y.D.)
| | - Alexander I. Archakov
- Institute of Biomedical Chemistry (IBMC), 119121 Moscow, Russia; (Y.D.I.); (K.A.M.); (T.O.P.); (A.F.K.); (R.A.G.); (I.D.S.); (I.K.A.); (V.S.Z.); (A.I.A.)
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Li H, Yuan J, Fennell G, Abdulla V, Nistala R, Dandachi D, Ho DKC, Zhang Y. Recent advances in wearable sensors and data analytics for continuous monitoring and analysis of biomarkers and symptoms related to COVID-19. BIOPHYSICS REVIEWS 2023; 4:031302. [PMID: 38510705 PMCID: PMC10903389 DOI: 10.1063/5.0140900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 05/19/2023] [Indexed: 03/22/2024]
Abstract
The COVID-19 pandemic has changed the lives of many people around the world. Based on the available data and published reports, most people diagnosed with COVID-19 exhibit no or mild symptoms and could be discharged home for self-isolation. Considering that a substantial portion of them will progress to a severe disease requiring hospitalization and medical management, including respiratory and circulatory support in the form of supplemental oxygen therapy, mechanical ventilation, vasopressors, etc. The continuous monitoring of patient conditions at home for patients with COVID-19 will allow early determination of disease severity and medical intervention to reduce morbidity and mortality. In addition, this will allow early and safe hospital discharge and free hospital beds for patients who are in need of admission. In this review, we focus on the recent developments in next-generation wearable sensors capable of continuous monitoring of disease symptoms, particularly those associated with COVID-19. These include wearable non/minimally invasive biophysical (temperature, respiratory rate, oxygen saturation, heart rate, and heart rate variability) and biochemical (cytokines, cortisol, and electrolytes) sensors, sensor data analytics, and machine learning-enabled early detection and medical intervention techniques. Together, we aim to inspire the future development of wearable sensors integrated with data analytics, which serve as a foundation for disease diagnostics, health monitoring and predictions, and medical interventions.
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Affiliation(s)
- Huijie Li
- Department of Biomedical Engineering and the Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, USA
| | - Jianhe Yuan
- Department of Electrical Engineering and Computer Science, University of Missouri-Columbia, Columbia, Missouri 65211, USA
| | - Gavin Fennell
- Department of Biomedical Engineering and the Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, USA
| | - Vagif Abdulla
- Department of Biomedical Engineering and the Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, USA
| | - Ravi Nistala
- Division of Nephrology, Department of Medicine, University of Missouri-Columbia, Columbia, Missouri 65212, USA
| | - Dima Dandachi
- Division of Infectious Diseases, Department of Medicine, University of Missouri-Columbia, 1 Hospital Drive, Columbia, Missouri 65212, USA
| | - Dominic K. C. Ho
- Department of Electrical Engineering and Computer Science, University of Missouri-Columbia, Columbia, Missouri 65211, USA
| | - Yi Zhang
- Department of Biomedical Engineering and the Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, USA
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Su Y, Bian S, Pan D, Xu Y, Rong G, Zhang H, Sawan M. Heterogeneous-Nucleation Biosensor for Long-Term Collection and Mask-Based Self-Detection of SARS-CoV-2. BIOSENSORS 2023; 13:858. [PMID: 37754092 PMCID: PMC10526364 DOI: 10.3390/bios13090858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 08/22/2023] [Accepted: 08/25/2023] [Indexed: 09/28/2023]
Abstract
The effective control of infectious diseases, including Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection, depends on the availability of rapid and accurate monitoring techniques. However, conventional SARS-CoV-2 detection technologies do not support continuous self-detection and may lead to cross-infection when utilized in medical institutions. In this study, we introduce a prototype of a mask biosensor designed for the long-term collection and self-detection of SARS-CoV-2. The biosensor utilizes the average resonance Rayleigh scattering intensity of Au nanocluster-aptamers. The inter-mask surface serves as a medium for the long-term collection and concentration enhancement of SARS-CoV-2, while the heterogeneous-nucleation nanoclusters (NCs) contribute to the exceptional stability of Au NCs for up to 48 h, facilitated by the adhesion of Ti NCs. Additionally, the biosensors based on Au NC-aptamers exhibited high sensitivity for up to 1 h. Moreover, through the implementation of a support vector machine classifier, a significant number of point signals can be collected and differentiated, leading to improved biosensor accuracy. These biosensors offer a complementary wearable device-based method for diagnosing SARS-CoV-2, with a limit of detection of 103 copies. Given their flexibility, the proposed biosensors possess tremendous potential for the continuous collection and sensitive self-detection of SARS-CoV-2 variants and other infectious pathogens.
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Affiliation(s)
- Yi Su
- College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou 310013, China; (Y.S.); (D.P.)
- CenBRAIN Neurotech, School of Engineering, Westlake University, Hangzhou 310030, China; (S.B.); (Y.X.); (G.R.); (H.Z.)
| | - Sumin Bian
- CenBRAIN Neurotech, School of Engineering, Westlake University, Hangzhou 310030, China; (S.B.); (Y.X.); (G.R.); (H.Z.)
| | - Dingyi Pan
- College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou 310013, China; (Y.S.); (D.P.)
| | - Yankun Xu
- CenBRAIN Neurotech, School of Engineering, Westlake University, Hangzhou 310030, China; (S.B.); (Y.X.); (G.R.); (H.Z.)
| | - Guoguang Rong
- CenBRAIN Neurotech, School of Engineering, Westlake University, Hangzhou 310030, China; (S.B.); (Y.X.); (G.R.); (H.Z.)
| | - Hongyong Zhang
- CenBRAIN Neurotech, School of Engineering, Westlake University, Hangzhou 310030, China; (S.B.); (Y.X.); (G.R.); (H.Z.)
| | - Mohamad Sawan
- CenBRAIN Neurotech, School of Engineering, Westlake University, Hangzhou 310030, China; (S.B.); (Y.X.); (G.R.); (H.Z.)
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Abstract
Rapid and specific assaying of molecules that report on a pathophysiological condition, environmental pollution, or drug concentration is pivotal for establishing efficient and accurate diagnostic systems. One of the main components required for the construction of these systems is the recognition element (receptor) that can identify target analytes. Oligonucleotide switching structures, or aptamers, have been widely studied as selective receptors that can precisely identify targets in different analyzed matrices with minimal interference from other components in an antibody-like recognition process. These aptasensors, especially when integrated into sensing platforms, enable a multitude of sensors that can outperform antibody-based sensors in terms of flexibility of the sensing strategy and ease of deployment to areas with limited resources. Research into compounds that efficiently enhance signal transduction and provide a suitable platform for conjugating aptamers has gained huge momentum over the past decade. The multifaceted nature of conjugated polymers (CPs), notably their versatile electrical and optical properties, endows them with a broad range of potential applications in optical, electrical, and electrochemical signal transduction. Despite the substantial body of research demonstrating the enhanced performance of sensing devices using doped or nanostructure-embedded CPs, few reviews are available that specifically describe the use of conjugated polymers in aptasensing. The purpose of this review is to bridge this gap and provide a comprehensive description of a variety of CPs, from a historical viewpoint, underpinning their specific characteristics and demonstrating the advances in biosensors associated with the use of these conjugated polymers.
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Affiliation(s)
- Razieh Salimian
- Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, Pau 64053, France
| | - Corinne Nardin
- Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, Pau 64053, France
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Ropii B, Bethasari M, Anshori I, Koesoema AP, Shalannanda W, Satriawan A, Setianingsih C, Akbar MR, Aditama R. The assessment of molecular dynamics results of three-dimensional RNA aptamer structure prediction. PLoS One 2023; 18:e0288684. [PMID: 37498889 PMCID: PMC10373999 DOI: 10.1371/journal.pone.0288684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 06/30/2023] [Indexed: 07/29/2023] Open
Abstract
Aptamers are single-stranded DNA or RNA that bind to specific targets such as proteins, thus having similar characteristics to antibodies. It can be synthesized at a lower cost, with no batch-to-batch variations, and is easier to modify chemically than antibodies, thus potentially being used as therapeutic and biosensing agents. The current method for RNA aptamer identification in vitro uses the SELEX method, which is considered inefficient due to its complex process. Computational models of aptamers have been used to predict and study the molecular interaction of modified aptamers to improve affinity. In this study, we generated three-dimensional models of five RNA aptamers from their sequence using mFold, RNAComposer web server, and molecular dynamics simulation. The model structures were then evaluated and compared with the experimentally determined structures. This study showed that the combination of mFold, RNAComposer, and molecular dynamics simulation could generate 14-16, 28, or 29 nucleotides length of 3D RNA aptamer with similar geometry and topology to the experimentally determined structures. The non-canonical basepair structure of the aptamer loop was formed through the MD simulation, which also improved the three-dimensional RNA aptamers model. Clustering analysis was recommended to choose the more representative model.
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Affiliation(s)
- Bejo Ropii
- School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung, West Java, Indonesia
| | - Maulidwina Bethasari
- Department of Pharmacy, Universitas Muhammadiyah Bandung, Bandung, West Java, Indonesia
| | - Isa Anshori
- School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung, West Java, Indonesia
- Research Center for Nanosciences and Nanotechnology (RCNN), Bandung Institute of Technology, Bandung, West Java, Indonesia
| | - Allya Paramita Koesoema
- School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung, West Java, Indonesia
| | - Wervyan Shalannanda
- School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung, West Java, Indonesia
| | - Ardianto Satriawan
- School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung, West Java, Indonesia
| | - Casi Setianingsih
- Department of Computer Engineering, School of Electrical Engineering, Telkom University, Bandung Regency, West Java, Indonesia
| | - Mohammad Rizki Akbar
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Padjadjaran and Dr. Hasan Sadikin General Hospital, Bandung, West Java, Indonesia
| | - Reza Aditama
- Biochemistry Research Group, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, Bandung, West Java, Indonesia
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Park YS, Choi S, Jang HJ, Yoo TH. Assay methods based on proximity-enhanced reactions for detecting non-nucleic acid molecules. Front Bioeng Biotechnol 2023; 11:1188313. [PMID: 37456730 PMCID: PMC10343955 DOI: 10.3389/fbioe.2023.1188313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 06/21/2023] [Indexed: 07/18/2023] Open
Abstract
Accurate and reliable detection of biological molecules such as nucleic acids, proteins, and small molecules is essential for the diagnosis and treatment of diseases. While simple homogeneous assays have been developed and are widely used for detecting nucleic acids, non-nucleic acid molecules such as proteins and small molecules are usually analyzed using methods that require time-consuming procedures and highly trained personnel. Recently, methods using proximity-enhanced reactions (PERs) have been developed for detecting non-nucleic acids. These reactions can be conducted in a homogeneous liquid phase via a single-step procedure. Herein, we review three assays based on PERs for the detection of non-nucleic acid molecules: proximity ligation assay, proximity extension assay, and proximity proteolysis assay.
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Affiliation(s)
- Ye Seop Park
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
| | - Sunjoo Choi
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
| | - Hee Ju Jang
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
| | - Tae Hyeon Yoo
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
- Department of Applied Chemistry and Biological Engineering, Ajou University, Suwon, Republic of Korea
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Park J, Ban C. Development of a one-shot dual aptamer-based fluorescence nanosensor for rapid, sensitive, and label-free detection of periostin. Sci Rep 2023; 13:10224. [PMID: 37353600 PMCID: PMC10290134 DOI: 10.1038/s41598-023-37418-0] [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: 04/04/2023] [Accepted: 06/21/2023] [Indexed: 06/25/2023] Open
Abstract
Periostin is associated with several diseases, including cancers. Therefore, monitoring blood periostin levels is a powerful tool for diagnosing various diseases and identifying their severity. However, conventional detection methods pose several challenges, including high costs. To address these issues, we developed a novel one-shot dual aptamer-based fluorescence nanosensor for detecting periostin. The proposed nanosensor facilitates rapid, label-free, and sensitive detection of periostin using gold nanoprobes constructed by rhodamine-b isothiocyanate, PL2trunc aptamer, and gold nanoparticles and silver nanoprobes fabricated by the PL5trunc aptamer and silver nanoparticles. The two nanoprobes form a core-satellite structure by interacting with periostin, and the nanosensor detects periostin through the fluorescence regenerated by the increased proximity between them. The nanosensor successfully detected periostin with remarkable detection limits of 106.68 pM in buffer and 463.3 pM in serum-spiked conditions within 30 min without additional washing or signal amplification processes. Considering serum periostin levels in various diseases, the proposed nanosensor provides a suitable method for identifying patients with various diseases and determining disease severity. Moreover, the platform can be helpful as a practical method for on-site medical diagnosis because it can be adapted to detect other biomarkers simply by replacing the aptamer with other detection probes.
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Affiliation(s)
- Jonghoon Park
- Department of Chemistry, Pohang University of Science and Technology, 77, Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, Republic of Korea
| | - Changill Ban
- Department of Chemistry, Pohang University of Science and Technology, 77, Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, Republic of Korea.
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Wijesinghe KM, Sabbih G, Algama CH, Syed R, Danquah MK, Dhakal S. FRET-Based Single-Molecule Detection of Pathogen Protein IsdA Using Computationally Selected Aptamers. Anal Chem 2023. [PMID: 37327207 DOI: 10.1021/acs.analchem.3c00717] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Iron-regulated surface determinant protein A (IsdA) is a key surface protein found in the foodborne bacteria─Staphylococcus aureus (S. aureus)─which is known to be critical for bacterial survival and colonization. S. aureus is pathogenic and has been linked to foodborne diseases; thus, early detection is critical to prevent diseases caused by this bacterium. Despite IsdA being a specific marker for S. aureus and several detection methods have been developed for sensitive detection of this bacteria such as cell culture, nucleic acids amplification, and other colorimetric and electrochemical methods, the detection of S. aureus through IsdA is underdeveloped. Here, by combining computational generation of target-guided aptamers and fluorescence resonance energy transfer (FRET)-based single-molecule analysis, we presented a widely applicable and robust detection method for IsdA. Three different RNA aptamers specific to the IsdA protein were identified and their ability to switch a FRET construct to a high-FRET state in the presence of protein was verified. The presented approach demonstrated the detection of IsdA down to picomolar levels (×10-12 M, equivalent to ∼1.1 femtomoles IsdA) with a dynamic range extending to ∼40 nM. The FRET-based single-molecule technique that we reported here is capable of detecting the foodborne pathogen protein IsdA with high sensitivity and specificity and has a broader application in the food industry and aptamer-based sensing field by enabling quantitative detection of a wide range of pathogen proteins.
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Affiliation(s)
- Kalani M Wijesinghe
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Godfred Sabbih
- Department of Chemical Engineering, University of Tennessee, Chattanooga, Tennessee 37403, United States
| | - Chamika Harshani Algama
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Rida Syed
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Michael K Danquah
- Department of Chemical Engineering, University of Tennessee, Chattanooga, Tennessee 37403, United States
| | - Soma Dhakal
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
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Yee BJ, Shafiqah NF, Mohd-Naim NF, Ahmed MU. A CRISPR/Cas12a-based fluorescence aptasensor for the rapid and sensitive detection of ampicillin. Int J Biol Macromol 2023:125211. [PMID: 37271263 DOI: 10.1016/j.ijbiomac.2023.125211] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/30/2023] [Accepted: 06/01/2023] [Indexed: 06/06/2023]
Abstract
This study introduces CRISPR/Cas-based aptasensor for the highly sensitive and specific detection of the antibiotic, ampicillin. Ampicillin (AMPI) is a commonly used antibiotic for treating pathogenic bacteria and is additionally added to livestock feed in agriculture. This study can enable early detection of antibiotic residues, prevent their accumulation in the environment, and ensure compliance with food safety regulations. Herein, the aptasensor was developed with the CRISPR/Cas system by utilizing three different ampicillin-specific aptamers, each conjugated with a biotin at the 5'-end. The ssDNA activator was bound to the aptamers through complementary base pairings. The attraction of the aptamers to the ampicillin target released the bound ssDNA, causing the activation of the CRISPR/Cas system. The DNA reporter probe, labelled with Cy3 and a quencher, turns on the fluorescence signal when cleaved by the activated Cas12a through trans-cleavage measured using a fluorescence spectrophotometer at 590 nm. The fluorescence signal was linearly proportional to the ampicillin target concentration with a 0.01 nM limit of detection and a read-out time of 30 min. This aptasensor showed high sensitivity towards ampicillin even in the presence of other antibiotics. The method was also successfully implemented for ampicillin detection in spiked food samples.
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Affiliation(s)
- Bong Jing Yee
- Biosensors and Nanobiotechnology Laboratory, Chemical Science Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
| | - Nurul Faizeemah Shafiqah
- Biosensors and Nanobiotechnology Laboratory, Chemical Science Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
| | - Noor Faizah Mohd-Naim
- PAPRSB Institute of Health Science, Univesiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
| | - Minhaz Uddin Ahmed
- Biosensors and Nanobiotechnology Laboratory, Chemical Science Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam.
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Narwade M, Shaikh A, Gajbhiye KR, Kesharwani P, Gajbhiye V. Advanced cancer targeting using aptamer functionalized nanocarriers for site-specific cargo delivery. Biomater Res 2023; 27:42. [PMID: 37149607 PMCID: PMC10164340 DOI: 10.1186/s40824-023-00365-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/20/2023] [Indexed: 05/08/2023] Open
Abstract
The non-specificity of standard anticancer therapies has profound detrimental consequences in clinical treatment. Therapeutic specificity can be precisely achieved using cutting-edge ligands. Small synthetic oligonucleotide-ligands chosen through Systematic evolution of ligands by exponential enrichment (SELEX) would be an unceasing innovation in using nucleic acids as aptamers, frequently referred to as "chemical antibodies." Aptamers act as externally controlled switching materials that can attach to various substrates, for example, membrane proteins or nucleic acid structures. Aptamers pose excellent specificity and affinity for target molecules and can be used as medicines to suppress tumor cell growth directly. The creation of aptamer-conjugated nanoconstructs has recently opened up innovative options in cancer therapy that are more effective and target tumor cells with minor toxicity to healthy tissues. This review focuses on a comprehensive description of the most capable classes of aptamer-tethered nanocarriers for precise recognition of cancer cells with significant development in proficiency, selectivity, and targetability for cancer therapy. Existing theranostic applications with the problems and future directions are also highlighted.
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Affiliation(s)
- Mahavir Narwade
- Department of Pharmaceutics, Poona College of Pharmacy, Bharati Vidyapeeth, Pune, India
| | - Aazam Shaikh
- Nanobioscience Group, Agharkar Research Institute, Pune, 411004, India
- Savitribai Phule Pune University, Ganeshkhind, Pune, 411 007, India
| | - Kavita R Gajbhiye
- Department of Pharmaceutics, Poona College of Pharmacy, Bharati Vidyapeeth, Pune, India
| | - Prashant Kesharwani
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India.
- Center for Transdisciplinary Research, Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Science, Chennai, India.
| | - Virendra Gajbhiye
- Nanobioscience Group, Agharkar Research Institute, Pune, 411004, India.
- Savitribai Phule Pune University, Ganeshkhind, Pune, 411 007, India.
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Kara N, Ayoub N, Ilgu H, Fotiadis D, Ilgu M. Aptamers Targeting Membrane Proteins for Sensor and Diagnostic Applications. Molecules 2023; 28:molecules28093728. [PMID: 37175137 PMCID: PMC10180177 DOI: 10.3390/molecules28093728] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/07/2023] [Accepted: 04/19/2023] [Indexed: 05/15/2023] Open
Abstract
Many biological processes (physiological or pathological) are relevant to membrane proteins (MPs), which account for almost 30% of the total of human proteins. As such, MPs can serve as predictive molecular biomarkers for disease diagnosis and prognosis. Indeed, cell surface MPs are an important class of attractive targets of the currently prescribed therapeutic drugs and diagnostic molecules used in disease detection. The oligonucleotides known as aptamers can be selected against a particular target with high affinity and selectivity by iterative rounds of in vitro library evolution, known as Systematic Evolution of Ligands by EXponential Enrichment (SELEX). As an alternative to antibodies, aptamers offer unique features like thermal stability, low-cost, reuse, ease of chemical modification, and compatibility with various detection techniques. Particularly, immobilized-aptamer sensing platforms have been under investigation for diagnostics and have demonstrated significant value compared to other analytical techniques. These "aptasensors" can be classified into several types based on their working principle, which are commonly electrochemical, optical, or mass-sensitive. In this review, we review the studies on aptamer-based MP-sensing technologies for diagnostic applications and have included new methodological variations undertaken in recent years.
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Affiliation(s)
- Nilufer Kara
- Department of Biological Sciences, Middle East Technical University, Ankara 06800, Turkey
| | - Nooraldeen Ayoub
- Department of Biological Sciences, Middle East Technical University, Ankara 06800, Turkey
- Institute of Biochemistry and Molecular Medicine, University of Bern, CH-3012 Bern, Switzerland
| | - Huseyin Ilgu
- Institute of Biochemistry and Molecular Medicine, University of Bern, CH-3012 Bern, Switzerland
| | - Dimitrios Fotiadis
- Institute of Biochemistry and Molecular Medicine, University of Bern, CH-3012 Bern, Switzerland
| | - Muslum Ilgu
- Department of Biological Sciences, Middle East Technical University, Ankara 06800, Turkey
- Roy J. Carver Department of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, IA 50011, USA
- Department of Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, IA 50011, USA
- Aptalogic Inc., Ames, IA 50014, USA
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Uddin N, Binzel DW, Shu D, Fu TM, Guo P. Targeted delivery of RNAi to cancer cells using RNA-ligand displaying exosome. Acta Pharm Sin B 2023; 13:1383-1399. [PMID: 37139430 PMCID: PMC10149909 DOI: 10.1016/j.apsb.2022.11.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 09/27/2022] [Accepted: 10/13/2022] [Indexed: 11/18/2022] Open
Abstract
Exosome is an excellent vesicle for in vivo delivery of therapeutics, including RNAi and chemical drugs. The extremely high efficiency in cancer regression can partly be attributed to its fusion mechanism in delivering therapeutics to cytosol without endosome trapping. However, being composed of a lipid-bilayer membrane without specific recognition capacity for aimed-cells, the entry into nonspecific cells can lead to potential side-effects and toxicity. Applying engineering approaches for targeting-capacity to deliver therapeutics to specific cells is desirable. Techniques with chemical modification in vitro and genetic engineering in cells have been reported to decorate exosomes with targeting ligands. RNA nanoparticles have been used to harbor tumor-specific ligands displayed on exosome surface. The negative charge reduces nonspecific binding to vital cells with negatively charged lipid-membrane due to the electrostatic repulsion, thus lowering the side-effect and toxicity. In this review, we focus on the uniqueness of RNA nanoparticles for exosome surface display of chemical ligands, small peptides or RNA aptamers, for specific cancer targeting to deliver anticancer therapeutics, highlighting recent advances in targeted delivery of siRNA and miRNA that overcomes the previous RNAi delivery roadblocks. Proper understanding of exosome engineering with RNA nanotechnology promises efficient therapies for a wide range of cancer subtypes.
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Affiliation(s)
- Nasir Uddin
- Center for RNA Nanobiotechnology and Nanomedicine, Division of Pharmaceutics and Pharmacology, College of Pharmacy, the Ohio State University, Columbus, OH 43210, USA
- Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University, Columbus, OH 43210, USA
- James Comprehensive Cancer Center, College of Medicine, the Ohio State University, Columbus, OH 43210, USA
| | - Daniel W. Binzel
- Center for RNA Nanobiotechnology and Nanomedicine, Division of Pharmaceutics and Pharmacology, College of Pharmacy, the Ohio State University, Columbus, OH 43210, USA
- Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University, Columbus, OH 43210, USA
- James Comprehensive Cancer Center, College of Medicine, the Ohio State University, Columbus, OH 43210, USA
| | - Dan Shu
- Center for RNA Nanobiotechnology and Nanomedicine, Division of Pharmaceutics and Pharmacology, College of Pharmacy, the Ohio State University, Columbus, OH 43210, USA
- Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University, Columbus, OH 43210, USA
- James Comprehensive Cancer Center, College of Medicine, the Ohio State University, Columbus, OH 43210, USA
| | - Tian-Min Fu
- Department of Biological Chemistry & Pharmacology, College of Medicine, the Ohio State University, Columbus, OH 43210, USA
| | - Peixuan Guo
- Center for RNA Nanobiotechnology and Nanomedicine, Division of Pharmaceutics and Pharmacology, College of Pharmacy, the Ohio State University, Columbus, OH 43210, USA
- Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University, Columbus, OH 43210, USA
- James Comprehensive Cancer Center, College of Medicine, the Ohio State University, Columbus, OH 43210, USA
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Chen Z, Deng XH, Jiang C, Wang JS, Li WP, Zhu KL, Li YH, Song B, Zhang ZZ. Repairing Avascular Meniscal Lesions by Recruiting Endogenous Targeted Cells Through Bispecific Synovial-Meniscal Aptamers. Am J Sports Med 2023; 51:1177-1193. [PMID: 36917829 DOI: 10.1177/03635465231159668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
BACKGROUND Tissue engineering is a promising treatment option for meniscal lesions in the avascular area, but a favorable cell source and its utilization in tissue-engineered menisci remain uncertain. Therefore, a more controllable and convenient method for cell recruitment is required. HYPOTHESIS Circular bispecific synovial-meniscal (S-M) aptamers with a gelatin methacryloyl (GelMA) hydrogel can recruit endogenous synovial and meniscal cells to the site of the defect, thereby promoting in situ meniscal regeneration and chondroprotection. STUDY DESIGN Controlled laboratory study. METHODS Synovial and meniscal aptamers were filtered through systematic evolution of ligands by exponential enrichment (SELEX) and cross-linked to synthesize the S-M aptamer. A GelMA-aptamer system was constructed. An in vitro analysis of the bi-recruitment of synovial and meniscal cells was performed, and the migration and proliferation of the GelMA-aptamer hydrogel were also tested. For the in vivo assay, rabbits (n = 90) with meniscal defects in the avascular zone were divided into 3 groups: repair with the GelMA-aptamer hydrogel (GelMA-aptamer group), repair with the GelMA hydrogel (GelMA group), and no repair (blank group). Regeneration of the repaired meniscus and degeneration of the cartilage were assessed by gross and histological evaluations at 4, 8, and 12 weeks postoperatively. The mechanical properties of repaired menisci were also evaluated. RESULTS In vitro synovial and meniscal cells were recruited simultaneously by the S-M aptamer with high affiliation and specificity. The GelMA-aptamer hydrogel promoted the migration of targeted cells. Compared with the other groups, the GelMA-aptamer group showed enhanced fibrocartilaginous regeneration, lower cartilage degeneration, and better mechanical strength at 12 weeks after meniscal repair. CONCLUSION/CLINICAL RELEVANCE Bispecific S-M aptamers could be used for avascular meniscal repair by recruiting endogenous synovial and meniscal cells and promoting fibrocartilaginous regeneration.
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Affiliation(s)
- Zhong Chen
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xing-Hao Deng
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chuan Jiang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jing-Song Wang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wei-Ping Li
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ke-Long Zhu
- School of Chemistry, Sun Yat-sen University, Guangzhou, China
| | - Yu-Heng Li
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Bin Song
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zheng-Zheng Zhang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
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Tungsirisurp S, O'Reilly R, Napier R. Nucleic acid aptamers as aptasensors for plant biology. TRENDS IN PLANT SCIENCE 2023; 28:359-371. [PMID: 36357246 DOI: 10.1016/j.tplants.2022.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 09/23/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Our knowledge of cell- and tissue-specific quantification of phytohormones is heavily reliant on laborious mass spectrometry techniques. Genetically encoded biosensors have allowed spatial and some temporal quantification of phytohormones intracellularly, but there is still limited information on their intercellular distributions. Here, we review nucleic acid aptamers as an emerging biosensing platform for the detection and quantification of analytes with high affinity and specificity. Options for DNA aptamer technology are explained through selection, sequencing analysis and techniques for evaluating affinity and specificity, and we focus on previously developed DNA aptamers against various plant analytes. We suggest how these tools might be applied in planta for quantification of molecules of interest both intracellularly and intercellularly.
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Affiliation(s)
| | - Rachel O'Reilly
- School of Chemistry, University of Birmingham, Birmingham B15 2TT, UK
| | - Richard Napier
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, UK.
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Yuan X, Li C, Yin X, Yang Y, Ji B, Niu Y, Ren L. Epidermal Wearable Biosensors for Monitoring Biomarkers of Chronic Disease in Sweat. BIOSENSORS 2023; 13:313. [PMID: 36979525 PMCID: PMC10045998 DOI: 10.3390/bios13030313] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 02/15/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
Biological information detection technology is mainly used for the detection of physiological and biochemical parameters closely related to human tissues and organ lesions, such as biomarkers. This technology has important value in the clinical diagnosis and treatment of chronic diseases in their early stages. Wearable biosensors can be integrated with the Internet of Things and Big Data to realize the detection, transmission, storage, and comprehensive analysis of human physiological and biochemical information. This technology has extremely wide applications and considerable market prospects in frontier fields including personal health monitoring, chronic disease diagnosis and management, and home medical care. In this review, we systematically summarized the sweat biomarkers, introduced the sweat extraction and collection methods, and discussed the application and development of epidermal wearable biosensors for monitoring biomarkers in sweat in preclinical research in recent years. In addition, the current challenges and development prospects in this field were discussed.
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Affiliation(s)
- Xichen Yuan
- School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
- MOE Key Laboratory of Micro and Nano Systems for Aerospace, Northwestern Polytechnical University, Xi’an 710072, China
| | - Chen Li
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
- Key Laboratory of Flexible Electronics of Zhejiang, Ningbo Institute of Northwestern Polytechnical University, Ningbo 315103, China
| | - Xu Yin
- School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| | - Yang Yang
- Ministry of Education Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Chongqing University, Chongqing 400030, China
| | - Bowen Ji
- Unmanned System Research Institute, Northwestern Polytechnical University, Xi’an 710072, China
| | - Yinbo Niu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | - Li Ren
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
- Key Laboratory of Flexible Electronics of Zhejiang, Ningbo Institute of Northwestern Polytechnical University, Ningbo 315103, China
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Ulloa-Gomez AM, Agredo A, Lucas A, Somvanshi SB, Stanciu L. Smartphone-based colorimetric detection of cardiac troponin T via label-free aptasensing. Biosens Bioelectron 2023; 222:114938. [PMID: 36462432 DOI: 10.1016/j.bios.2022.114938] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 11/23/2022]
Abstract
We report an aptasensing platform for the detection of cardiac troponin T (cTnT) in the immediate and early phases of acute myocardial infarction (AMI). High-flow filter paper was used to fabricate a microfluidic paper-based analytical device (μ-PAD), which was further modified with gold-decorated polystyrene microparticles functionalized with a highly specific cTnT aptamer. Herein, cTnT detection is presented in two linear ranges (0.01-0.8 μg/ml and 6.25-50 μg/ml) with an LoD of 3.9X10-4 μg/ml, which is in agreement with reference values determined by the American Heart Association. The proposed platform showed remarkable selectivity against AMI-associated cardiac biomarkers such as TNF-alpha, interleukin-6, cardiac troponin I, and reactive protein-C. This aptasensor is a label-free assay that relies only on smartphone-based image analysis and takes less processing time in comparison with traditional methods like ELISA. Furthermore, it exhibits outstanding stability over 23 days when devices are stored at 4 °C. The reported platform is a stable and cost-effective method for the on-site and user-friendly detection of cTnT in normal saline buffer and diluted human serum.
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Affiliation(s)
- Ana M Ulloa-Gomez
- Department of Materials Engineering, Purdue University, West Lafayette, IN, 7907, USA
| | - Alejandra Agredo
- Department of Biological Sciences, West Lafayette, IN, 47907, USA; Purdue Life Sciences Interdisciplinary Program (PULSe), West Lafayette, IN, 47907, USA
| | - Alec Lucas
- Department of Materials Engineering, Purdue University, West Lafayette, IN, 7907, USA
| | - Sandeep B Somvanshi
- Department of Materials Engineering, Purdue University, West Lafayette, IN, 7907, USA
| | - Lia Stanciu
- Department of Materials Engineering, Purdue University, West Lafayette, IN, 7907, USA; Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA.
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Hu WP, Wu YM, Vu CA, Chen WY. Ultrasensitive Detection of Interleukin 6 by Using Silicon Nanowire Field-Effect Transistors. SENSORS (BASEL, SWITZERLAND) 2023; 23:625. [PMID: 36679421 PMCID: PMC9865274 DOI: 10.3390/s23020625] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/19/2022] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
Interleukin 6 (IL-6) has been regarded as a biomarker that can be applied as a predictor for the severity of COVID-19-infected patients. The IL-6 level also correlates well with respiratory dysfunction and mortality risk. In this work, three silanization approaches and two types of biorecognition elements were used on the silicon nanowire field-effect transistors (SiNW-FETs) to investigate and compare the sensing performance on the detection of IL-6. Experimental data revealed that the mixed-SAMs-modified silica surface could have superior surface morphology to APTES-modified and APS-modified silica surfaces. According to the data on detecting various concentrations of IL-6, the detection range of the aptamer-functionalized SiNW-FET was broader than that of the antibody-functionalized SiNW-FET. In addition, the lowest concentration of valid detection for the aptamer-functionalized SiNW-FET was 2.1 pg/mL, two orders of magnitude lower than the antibody-functionalized SiNW-FET. The detection range of the aptamer-functionalized SiNW-FET covered the concentration of IL-6, which could be used to predict fatal outcomes of COVID-19. The detection results in the buffer showed that the anti-IL-6 aptamer could produce better detection results on the SiNW-FETs, indicating its great opportunity in applications for sensing clinical samples.
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Affiliation(s)
- Wen-Pin Hu
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung 41354, Taiwan
| | - Yu-Ming Wu
- Department of Chemical and Materials Engineering, National Central University, Taoyuan City 32001, Taiwan
| | - Cao-An Vu
- Department of Chemical and Materials Engineering, National Central University, Taoyuan City 32001, Taiwan
| | - Wen-Yih Chen
- Department of Chemical and Materials Engineering, National Central University, Taoyuan City 32001, Taiwan
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Rana A, Adhikary M, Singh PK, Das BC, Bhatnagar S. "Smart" drug delivery: A window to future of translational medicine. Front Chem 2023; 10:1095598. [PMID: 36688039 PMCID: PMC9846181 DOI: 10.3389/fchem.2022.1095598] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 11/28/2022] [Indexed: 01/05/2023] Open
Abstract
Chemotherapy is the mainstay of cancer treatment today. Chemotherapeutic drugs are non-selective and can harm both cancer and healthy cells, causing a variety of adverse effects such as lack of specificity, cytotoxicity, short half-life, poor solubility, multidrug resistance, and acquiring cancer stem-like characteristics. There is a paradigm shift in drug delivery systems (DDS) with the advent of smarter ways of targeted cancer treatment. Smart Drug Delivery Systems (SDDSs) are stimuli responsive and can be modified in chemical structure in response to light, pH, redox, magnetic fields, and enzyme degradation can be future of translational medicine. Therefore, SDDSs have the potential to be used as a viable cancer treatment alternative to traditional chemotherapy. This review focuses mostly on stimuli responsive drug delivery, inorganic nanocarriers (Carbon nanotubes, gold nanoparticles, Meso-porous silica nanoparticles, quantum dots etc.), organic nanocarriers (Dendrimers, liposomes, micelles), antibody-drug conjugates (ADC) and small molecule drug conjugates (SMDC) based SDDSs for targeted cancer therapy and strategies of targeted drug delivery systems in cancer cells.
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Affiliation(s)
- Abhilash Rana
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh, India
| | - Meheli Adhikary
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh, India
| | - Praveen Kumar Singh
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh, India
| | - Bhudev C. Das
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh, India,Amity Institute of Molecular Medicine and Stem Cell Research, Amity University, Noida, Uttar Pradesh, India
| | - Seema Bhatnagar
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh, India,*Correspondence: Seema Bhatnagar,
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