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Kausaite-Minkstimiene A, Popov A, Kalvaityte U, Bernotiene E, Mobasheri A, Ramanaviciene A. An ultra-sensitive SPR immunosensor for quantitative determination of human cartilage oligomeric matrix protein biomarker. Biosens Bioelectron 2023; 234:115370. [PMID: 37163879 DOI: 10.1016/j.bios.2023.115370] [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: 11/18/2022] [Revised: 03/18/2023] [Accepted: 05/01/2023] [Indexed: 05/12/2023]
Abstract
This paper reports the development of a novel surface plasmon resonance (SPR) immunosensor for ultra-sensitive quantitative determination of human articular cartilage oligomeric matrix protein (COMP), a major component of the extracellular matrix and an exploratory biomarker. Capture antibodies against human COMP (anti-COMP16F12) were covalently immobilized on an 11-mercaptoundecanoic acid (11-MUA) self-assembled monolayer (SAM)-coated SPR sensor disk and a dual sandwich-type signal amplification strategy using biotinylated detection antibodies against COMP (anti-COMP17C10-biot) and streptavidin-conjugated quantum dots (SAv‒QDs) were used for the development of an immunosensor. The binding of high-mass SAv‒QDs via biotin-streptavidin interaction to the surface of the immunosensor resulted in a drastic increase in the sensitivity. The developed immunosensor was able to detect concentrations of COMP in a range from 2.80 to 680.54 fM with a limit of detection (LOD) and a limit of quantification (LOQ) of 0.15 and 0.50 fM, respectively. The immunosensor exhibited good repeatability (relative standard deviation (RSD) 8.05%) and reproducibility (RSD 9.88%) as well as excellent operational stability (2.14 % decrease in SPR signal after 13 days). In addition, the analysis of secretomes of human knee articular cartilage explants from patients with osteoarthritis revealed that the immunosensor has good accuracy (analytical error less than 5 %). These results indicate that the immunosensor developed may be suitable for quantitative determination of COMP derived from articular cartilage and other synovial joint tissues in clinical studies.
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Affiliation(s)
- Asta Kausaite-Minkstimiene
- Department of Immunology, State Research Institute Centre for Innovative Medicine, LT-08406, Vilnius, Lithuania; NanoTechnas ‒ Center of Nanotechnology and Materials Science, Institute of Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, LT-03225, Vilnius, Lithuania.
| | - Anton Popov
- Department of Immunology, State Research Institute Centre for Innovative Medicine, LT-08406, Vilnius, Lithuania; NanoTechnas ‒ Center of Nanotechnology and Materials Science, Institute of Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, LT-03225, Vilnius, Lithuania
| | - Ursule Kalvaityte
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, LT-08406, Vilnius, Lithuania
| | - Eiva Bernotiene
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, LT-08406, Vilnius, Lithuania
| | - Ali Mobasheri
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, LT-08406, Vilnius, Lithuania; Research Unit of Health Sciences and Technology, Faculty of Medicine, University of Oulu, FI-90014, Oulu, Finland; Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China; Division of Public Health, Epidemiology and Health Economics, WHO Collaborating Center for Public Health Aspects of Musculo-Skeletal Health and Ageing, University of Liège, 4000, Liege, Belgium
| | - Almira Ramanaviciene
- Department of Immunology, State Research Institute Centre for Innovative Medicine, LT-08406, Vilnius, Lithuania; NanoTechnas ‒ Center of Nanotechnology and Materials Science, Institute of Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, LT-03225, Vilnius, Lithuania
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2
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Rasetti-Escargueil C, Avril A. Medical Countermeasures against Ricin Intoxication. Toxins (Basel) 2023; 15:toxins15020100. [PMID: 36828415 PMCID: PMC9966136 DOI: 10.3390/toxins15020100] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/14/2022] [Accepted: 01/16/2023] [Indexed: 01/22/2023] Open
Abstract
Ricin toxin is a disulfide-linked glycoprotein (AB toxin) comprising one enzymatic A chain (RTA) and one cell-binding B chain (RTB) contained in the castor bean, a Ricinus species. Ricin inhibits peptide chain elongation via disruption of the binding between elongation factors and ribosomes, resulting in apoptosis, inflammation, oxidative stress, and DNA damage, in addition to the classically known rRNA damage. Ricin has been used in traditional medicine throughout the world since prehistoric times. Because ricin toxin is highly toxic and can be readily extracted from beans, it could be used as a bioweapon (CDC B-list). Due to its extreme lethality and potential use as a biological weapon, ricin toxin remains a global public health concern requiring specific countermeasures. Currently, no specific treatment for ricin intoxication is available. This review focuses on the drugs under development. In particular, some examples are reviewed to demonstrate the proof of concept of antibody-based therapy. Chemical inhibitors, small proteins, and vaccines can serve as alternatives to antibodies or may be used in combination with antibodies.
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Affiliation(s)
- Christine Rasetti-Escargueil
- Unité des Bactéries Anaérobies et Toxines, Institut Pasteur, 25 Avenue du Docteur Roux, 75015 Paris, France
- Correspondence:
| | - Arnaud Avril
- Unité Immunopathologies, Département Microbiologie et Maladies Infectieuses, Institut de Recherche Biomédicale des Armées, 91220 Brétigny-sur-Orge, France
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3
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Qu Y, Han X, Liu X, Zheng W, Cao L, Lin H, Pavase TR, Chen S, Sui J. Preparation, characterization, and potential application of shark derived single domain antibody against myofibrillar binding serine protease (
MBSP
) in
Silver carp. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuekuan Qu
- Food Safety Laboratory Ocean University of China 5 Yushan Rd. Qingdao 266003 China
| | - Xiangning Han
- Food Safety Laboratory Ocean University of China 5 Yushan Rd. Qingdao 266003 China
| | - Xin Liu
- Food Safety Laboratory Ocean University of China 5 Yushan Rd. Qingdao 266003 China
| | - Wang Zheng
- Food Safety Laboratory Ocean University of China 5 Yushan Rd. Qingdao 266003 China
| | - Linmin Cao
- Food Safety Laboratory Ocean University of China 5 Yushan Rd. Qingdao 266003 China
| | - Hong Lin
- Food Safety Laboratory Ocean University of China 5 Yushan Rd. Qingdao 266003 China
| | - Tushar Ramesh Pavase
- Food Safety Laboratory Ocean University of China 5 Yushan Rd. Qingdao 266003 China
| | - Shengjun Chen
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute Chinese Academy of Fishery Sciences 510300 Guangzhou China
| | - Jianxin Sui
- Food Safety Laboratory Ocean University of China 5 Yushan Rd. Qingdao 266003 China
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4
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Tsai HY, Algar WR. A Dendrimer-Based Time-Gated Concentric FRET Configuration for Multiplexed Sensing. ACS NANO 2022; 16:8150-8160. [PMID: 35499916 DOI: 10.1021/acsnano.2c01473] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Förster resonance energy transfer (FRET) is widely used for the development of biological probes and sensors. In this context, the norm for multiplexed detection is deployment of multiple probes, each a discrete donor-acceptor pair. Concentric FRET (cFRET) probes enable multiplexed sensing with a single vector but, to date, have only been developed around semiconductor quantum dots, which may limit the scope of biological applications for such probes. Here, we demonstrate that dendrimers labeled with a luminescent terbium complex (Tb) are a viable and advantageous alternative platform for cFRET probes. Polyamidoamine dendrimers were functionalized with Tb, biotin, NeutrAvidin, and three types of dye-labeled oligonucleotide probes to establish a network of competitive and sequential Tb-to-dye and dye-to-dye FRET pathways. These probes were characterized physically and photophysically, and a time-gated multiplexed assay for DNA targets was demonstrated. The time-gating offered by the Tb allowed the rejection of background autofluorescence from serum. More broadly, this dendrimer-based architecture shows that cFRET is a general concept and is an important step toward a new generation of probes for biological sensing.
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Affiliation(s)
- Hsin-Yun Tsai
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - W Russ Algar
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
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5
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Luo L, Yang J, Li Z, Xu H, Guo L, Wang L, Wang Y, Luo L, Wang J, Zhang P, Yang R, Kang W, Xie J. Label-free differentiation and quantification of ricin, abrin from their agglutinin biotoxins by surface plasmon resonance. Talanta 2022; 238:122860. [PMID: 34857316 DOI: 10.1016/j.talanta.2021.122860] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 05/31/2021] [Accepted: 09/05/2021] [Indexed: 01/17/2023]
Abstract
Here we describe an affinity molecule-directed surface plasmon resonance (SPR) immunosensor for a label-free, differentiation and quantification of ricin and abrin from their structural highly like agglutinin biotoxins. By an introduction of protein G as the affinity capturing molecule, we fulfilled a complete strategy contains (i) screening monoclonal antibodies to be paired in a sandwiched format, (ii) differentiate quantification from the agglutinin, (iii) ascertain of active from inactive biotoxin, and (iv) structural identification of captured biotoxins on a single chip. By the aid of an enrichment step from immunomagnetic beads, we could accurately measure ricin or abrin with a concentration lowered to 0.6 ng/mL (10 pM) in different complex matrices such as stevia, protein powder, and human plasma, with linear ranges of two or three orders of magnitude, and satisfied recovery. We then differentially quantified the mixed crude extracts from castor beans and jequirity peas, and real samples from the fourth OPCW biotoxin exercise to prove the practical availability. We further provided a SPR-mass spectrometric evidence directly obtained from Protein G affinity chip via a noncovalent molecule surface for the first time for definitely structural identification for crude extracts.
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Affiliation(s)
- Li Luo
- School of Public Health, Hebei Medical University, Shijiazhuang, 050017, China; State Key Laboratory of Toxicology and Medical Countermeasures, and Laboratory of Toxicant Analysis, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing, 100850, China
| | - Jiewei Yang
- State Key Laboratory of Toxicology and Medical Countermeasures, and Laboratory of Toxicant Analysis, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing, 100850, China
| | - Zhi Li
- State Key Laboratory of Toxicology and Medical Countermeasures, and Laboratory of Toxicant Analysis, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing, 100850, China
| | - Hua Xu
- State Key Laboratory of Toxicology and Medical Countermeasures, and Laboratory of Toxicant Analysis, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing, 100850, China
| | - Lei Guo
- State Key Laboratory of Toxicology and Medical Countermeasures, and Laboratory of Toxicant Analysis, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing, 100850, China.
| | - Lili Wang
- State Key Laboratory of Toxicology and Medical Countermeasures, and Beijing Institute of Pharmacology and Toxicology, Beijing, 100850, China
| | - Yuxia Wang
- State Key Laboratory of Toxicology and Medical Countermeasures, and Beijing Institute of Pharmacology and Toxicology, Beijing, 100850, China
| | - Longlong Luo
- State Key Laboratory of Toxicology and Medical Countermeasures, and Beijing Institute of Pharmacology and Toxicology, Beijing, 100850, China
| | - Jing Wang
- State Key Laboratory of Toxicology and Medical Countermeasures, and Beijing Institute of Pharmacology and Toxicology, Beijing, 100850, China
| | - Pingping Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Ruifu Yang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Weijun Kang
- School of Public Health, Hebei Medical University, Shijiazhuang, 050017, China.
| | - Jianwei Xie
- State Key Laboratory of Toxicology and Medical Countermeasures, and Laboratory of Toxicant Analysis, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing, 100850, China
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6
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Ravi P, Ganesan M. Quantum Dots as Biosensors in the Determination of Biochemical Parameters in Xenobiotic Exposure and Toxins. ANAL SCI 2021; 37:661-671. [PMID: 33390416 DOI: 10.2116/analsci.20scr03] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Quantum dots (QDs) have been exploited for a range of scientific applications where the analytes can be expected to have significant photoluminescent properties. Previously, the applications of QDs as nanosensors for the detection of toxics in biospecimens, especially in cases of poisoning, have been discussed. This review focuses on the applications of QDs as biosensors for the detection of phytotoxins, vertebrate and invertebrate toxins, and microbial toxins present in biospecimens. Further, the role of QDs in the measurement of biochemical parameters of patient/victim as an indirect method of poison detection is also highlighted.
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Affiliation(s)
- Poorvisha Ravi
- Toxicology Division, Regional Forensic Science Laboratory, Forensic Sciences Department
| | - Muthupandian Ganesan
- Toxicology Division, Regional Forensic Science Laboratory, Forensic Sciences Department
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7
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Bastos-Soares EA, Sousa RMO, Gómez AF, Alfonso J, Kayano AM, Zanchi FB, Funes-Huacca ME, Stábeli RG, Soares AM, Pereira SS, Fernandes CFC. Single domain antibodies in the development of immunosensors for diagnostics. Int J Biol Macromol 2020; 165:2244-2252. [DOI: 10.1016/j.ijbiomac.2020.10.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 09/26/2020] [Accepted: 10/04/2020] [Indexed: 12/16/2022]
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8
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A Low Spring Constant Piezoresistive Microcantilever for Biological Reagent Detection. MICROMACHINES 2020; 11:mi11111001. [PMID: 33198100 PMCID: PMC7697630 DOI: 10.3390/mi11111001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 11/16/2022]
Abstract
This paper introduces a piezoresistive microcantilever with a low spring constant. The microcantilever was fabricated with titanium (Ti) as the piezoresistor, a low spring constant polyimide (PI) layer, and a thin silicon oxide (SiO2) layer as the top and bottom passive layers, respectively. Excellent mechanical performances with the spring constant of 0.02128 N/m and the deflection sensitivity (∆V/V)/∆z of 1.03 × 10−7 nm−1 were obtained. The output voltage fluctuation of a Wheatstone bridge, which consists of four piezoresistive microcantilevers, is less than 3 μV@3 V in a phosphate buffered saline (PBS) environment. A microcantilever aptasensor was then developed through functionalizing the microcantilevers with a ricin aptamer probe, and detections on ricin with concentrations of 10, 20, 50 and 100 ng/mL were successfully realized. A good specificity was also confirmed by using bovine serum albumin (BSA) as a blank control. The experiment results show that the Ti and PI-based microcantilever has great prospects for ultrasensitive biochemical molecule detections with high reliability and specificity.
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9
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Ye QC, Men C, Li YF, Liu JJ, Huang CZ, Zhen SJ. Catalytic hairpin assembly mediated liposome-encoded magnetic beads for signal amplification of peroxide test strip based point-of-care testing of ricin. Chem Commun (Camb) 2020; 56:14091-14094. [PMID: 33107866 DOI: 10.1039/d0cc05456a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Herein, we propose a new peroxide test strip (PTS) based point-of-care testing (POCT) method to detect ricin B-chain qualitatively and quantitatively by using catalytic hairpin assembly (CHA) mediated liposome-encoded magnetic beads for signal amplification. The sensitivity of this PTS based POCT method was improved significantly because it combined CHA signal amplification and liposome-based signal amplification.
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Affiliation(s)
- Qi Chao Ye
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
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10
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Delices A, Moodelly D, Hurot C, Hou Y, Ling WL, Saint-Pierre C, Gasparutto D, Nogues G, Reiss P, Kheng K. Aqueous Synthesis of DNA-Functionalized Near-Infrared AgInS 2/ZnS Core/Shell Quantum Dots. ACS APPLIED MATERIALS & INTERFACES 2020; 12:44026-44038. [PMID: 32840358 DOI: 10.1021/acsami.0c11337] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Biocompatibility, biofunctionality, and chemical stability are essential criteria to be fulfilled by quantum dot (QD) emitters for bio-imaging and -sensing applications. In addition to these criteria, achieving efficient near-infrared (NIR) emission with nontoxic QDs remains very challenging. In this perspective, we developed water-soluble NIR-emitting AgInS2/ZnS core/shell (AIS/ZnS) QDs functionalized with DNA. The newly established aqueous route relying on a two-step hot-injection synthesis led to highly luminescent chalcopyrite-type AIS/ZnS core/shell QDs with an unprecedented photoluminescence quantum yield (PLQY) of 55% at 700 nm and a long photoluminescence (PL) decay time of 900 ns. Fast and slow hot injection of the precursors were compared for the AIS core QD synthesis, yielding a completely different behavior in terms of size, size distribution, stoichiometry, and crystal structure. The PL peak positions of both types of core QDs were 710 (fast) and 760 nm (slow injection) with PLQYs of 36 and 8%, respectively. The slow and successive incorporation of the Zn and S precursors during the subsequent shell growth step on the stronger emitting cores promoted the formation of a three-monolayer thick ZnS shell, evidenced by the increase of the average QD size from 3.0 to 4.8 nm. Bioconjugation of the AIS/ZnS QDs with hexylthiol-modified DNA was achieved during the ZnS shell growth, resulting in a grafting level of 5-6 DNA single strands per QD. The successful chemical conjugation of DNA was attested by UV-vis spectroscopy and agarose gel electrophoresis. Importantly, surface plasmon resonance imaging experiments using complementary DNA strands further corroborated the successful coupling and the stability of the AIS/ZnS-DNA QD conjugates as well as the preservation of the biological activity of the anchored DNA. The strong NIR emission and biocompatibility of these AIS/ZnS-DNA QDs provide a high potential for their use in biomedical applications.
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Affiliation(s)
- Annette Delices
- Université Grenoble Alpes, CEA, CNRS, IRIG, PHELIQS, Grenoble F-38000, France
- Université Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, UMR 5819, Grenoble F-38000, France
| | - Davina Moodelly
- Université Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, UMR 5819, Grenoble F-38000, France
| | - Charlotte Hurot
- Université Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, UMR 5819, Grenoble F-38000, France
| | - Yanxia Hou
- Université Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, UMR 5819, Grenoble F-38000, France
| | - Wai Li Ling
- Université Grenoble Alpes, CEA, CNRS, IBS, Grenoble F-38000, France
| | | | - Didier Gasparutto
- Université Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, UMR 5819, Grenoble F-38000, France
| | - Gilles Nogues
- University Grenoble Alpes, CNRS, Institut Néel, Grenoble F-38000, France
| | - Peter Reiss
- Université Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, UMR 5819, Grenoble F-38000, France
| | - Kuntheak Kheng
- Université Grenoble Alpes, CEA, CNRS, IRIG, PHELIQS, Grenoble F-38000, France
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11
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Nanomaterials and new biorecognition molecules based surface plasmon resonance biosensors for mycotoxin detection. Biosens Bioelectron 2019; 143:111603. [DOI: 10.1016/j.bios.2019.111603] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/06/2019] [Accepted: 08/14/2019] [Indexed: 02/04/2023]
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12
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Farahavar G, Abolmaali SS, Gholijani N, Nejatollahi F. Antibody-guided nanomedicines as novel breakthrough therapeutic, diagnostic and theranostic tools. Biomater Sci 2019; 7:4000-4016. [PMID: 31355391 DOI: 10.1039/c9bm00931k] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Recent advances in nanotechnology, such as the development of various types of nanoparticles and hybrid nanomaterials, have revolutionized nanomedicine. The small size, customizable surface, enhanced solubility, and multi-functionality endow the nanoparticles with an ability to interact with complex cellular and biological functions in new ways. Furthermore, these systems can deliver drugs to specific tissues and provide a targeted therapy. For this purpose, different categories of molecules, particularly antibodies, have been used as ligands. Antibody-conjugated nanomaterials can significantly enhance the efficiency of nanomedicines, especially in the field of cancer. This review is focused on three major medical applications of antibody-conjugated nanomaterials, namely, therapeutic, diagnostic and theranostic applications. To provide comprehensive information on the topic and an overview of these hybrid nanomaterials for biomedical applications, a brief summary of nanomaterials and antibodies is given. Moreover, the review has depicted the potential applications of antibody-conjugated nanomaterials in different fields and their capabilities to empower nanomedicine, particularly in relation to the treatment and detection of malignancies.
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Affiliation(s)
- Ghazal Farahavar
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, Shiraz 71345, Iran.
| | - Samira Sadat Abolmaali
- Pharmaceutical Nanotechnology Department and Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz 71345, Iran.
| | - Nasser Gholijani
- Autoimmune Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Foroogh Nejatollahi
- Shiraz HIV/AIDS research center, Institute of health, Shiraz University of Medical Sciences, Shiraz, Iran.
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13
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Aflatoxins screening in non-dairy beverages by Mn-doped ZnS quantum dots – Molecularly imprinted polymer fluorescent probe. Talanta 2019; 199:65-71. [DOI: 10.1016/j.talanta.2019.02.057] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 02/11/2019] [Accepted: 02/13/2019] [Indexed: 11/20/2022]
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14
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Wang D, Loo JFC, Chen J, Yam Y, Chen SC, He H, Kong SK, Ho HP. Recent Advances in Surface Plasmon Resonance Imaging Sensors. SENSORS 2019; 19:s19061266. [PMID: 30871157 PMCID: PMC6471112 DOI: 10.3390/s19061266] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 02/22/2019] [Accepted: 02/26/2019] [Indexed: 12/12/2022]
Abstract
The surface plasmon resonance (SPR) sensor is an important tool widely used for studying binding kinetics between biomolecular species. The SPR approach offers unique advantages in light of its real-time and label-free sensing capabilities. Until now, nearly all established SPR instrumentation schemes are based on single- or several-channel configurations. With the emergence of drug screening and investigation of biomolecular interactions on a massive scale these days for finding more effective treatments of diseases, there is a growing demand for the development of high-throughput 2-D SPR sensor arrays based on imaging. The so-called SPR imaging (SPRi) approach has been explored intensively in recent years. This review aims to provide an up-to-date and concise summary of recent advances in SPRi. The specific focuses are on practical instrumentation designs and their respective biosensing applications in relation to molecular sensing, healthcare testing, and environmental screening.
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Affiliation(s)
- Dongping Wang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, China.
| | - Jacky Fong Chuen Loo
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong, China.
- Biochemistry Programme, School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China.
| | - Jiajie Chen
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong, China.
| | - Yeung Yam
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, China.
| | - Shih-Chi Chen
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, China.
| | - Hao He
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Siu Kai Kong
- Biochemistry Programme, School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China.
| | - Ho Pui Ho
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong, China.
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15
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Walper SA, Lasarte Aragonés G, Sapsford KE, Brown CW, Rowland CE, Breger JC, Medintz IL. Detecting Biothreat Agents: From Current Diagnostics to Developing Sensor Technologies. ACS Sens 2018; 3:1894-2024. [PMID: 30080029 DOI: 10.1021/acssensors.8b00420] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Although a fundamental understanding of the pathogenicity of most biothreat agents has been elucidated and available treatments have increased substantially over the past decades, they still represent a significant public health threat in this age of (bio)terrorism, indiscriminate warfare, pollution, climate change, unchecked population growth, and globalization. The key step to almost all prevention, protection, prophylaxis, post-exposure treatment, and mitigation of any bioagent is early detection. Here, we review available methods for detecting bioagents including pathogenic bacteria and viruses along with their toxins. An introduction placing this subject in the historical context of previous naturally occurring outbreaks and efforts to weaponize selected agents is first provided along with definitions and relevant considerations. An overview of the detection technologies that find use in this endeavor along with how they provide data or transduce signal within a sensing configuration follows. Current "gold" standards for biothreat detection/diagnostics along with a listing of relevant FDA approved in vitro diagnostic devices is then discussed to provide an overview of the current state of the art. Given the 2014 outbreak of Ebola virus in Western Africa and the recent 2016 spread of Zika virus in the Americas, discussion of what constitutes a public health emergency and how new in vitro diagnostic devices are authorized for emergency use in the U.S. are also included. The majority of the Review is then subdivided around the sensing of bacterial, viral, and toxin biothreats with each including an overview of the major agents in that class, a detailed cross-section of different sensing methods in development based on assay format or analytical technique, and some discussion of related microfluidic lab-on-a-chip/point-of-care devices. Finally, an outlook is given on how this field will develop from the perspective of the biosensing technology itself and the new emerging threats they may face.
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Affiliation(s)
- Scott A. Walper
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
| | - Guillermo Lasarte Aragonés
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
- College of Science, George Mason University Fairfax, Virginia 22030, United States
| | - Kim E. Sapsford
- OMPT/CDRH/OIR/DMD Bacterial Respiratory and Medical Countermeasures Branch, U.S. Food and Drug Administration, Silver Spring, Maryland 20993, United States
| | - Carl W. Brown
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
- College of Science, George Mason University Fairfax, Virginia 22030, United States
| | - Clare E. Rowland
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
- National Research Council, Washington, D.C. 20036, United States
| | - Joyce C. Breger
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
| | - Igor L. Medintz
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
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16
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Yosef G, Arkadash V, Papo N. Targeting the MMP-14/MMP-2/integrin α vβ 3 axis with multispecific N-TIMP2-based antagonists for cancer therapy. J Biol Chem 2018; 293:13310-13326. [PMID: 29986882 DOI: 10.1074/jbc.ra118.004406] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Indexed: 12/27/2022] Open
Abstract
The pathophysiological functions of the signaling molecules matrix metalloproteinase-14 (MMP-14) and integrin αvβ3 in various types of cancer are believed to derive from their collaborative activity in promoting invasion, metastasis, and angiogenesis, as shown in vitro and in vivo The two effectors act in concert in a cell-specific manner through the localization of pro-MMP-2 to the cell surface, where it is processed to intermediate and matured MMP-2. The matured MMP-2 product is localized to the cell surface via its binding to integrin αvβ3 The MMP-14/MMP-2/integrin αvβ3 axis thus constitutes an attractive putative target for therapeutic interventions, but the development of inhibitors that target this axis remains an unfulfilled task. To address the lack of such multitarget inhibitors, we have established a combinatorial approach that is based on flow cytometry screening of a yeast-displayed N-TIMP2 (N-terminal domain variant of tissue inhibitor of metalloproteinase-2) mutant library. On the basis of this screening, we generated protein monomers and a heterodimer that contain monovalent and bivalent binding epitopes to MMP-14 and integrin αvβ3 Among these proteins, the bi-specific heterodimer, which bound strongly to both MMP-14 and integrin αvβ3, exhibited superior ability to inhibit MMP-2 activation and displayed the highest inhibitory activity in cell-based models of a MMP-14-, MMP-2-, and integrin αvβ3-dependent glioblastoma and of endothelial cell invasiveness and endothelial capillary tube formation. These assays enabled us to show the superiority of the combined target effects of the inhibitors and to investigate separately the role each of the three signaling molecules in various malignant processes.
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Affiliation(s)
- Gal Yosef
- From the Department of Biotechnology Engineering and the National Institute of Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Valeria Arkadash
- From the Department of Biotechnology Engineering and the National Institute of Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Niv Papo
- From the Department of Biotechnology Engineering and the National Institute of Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva, Israel
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17
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Mohammadzadeh-Asl S, Keshtkar A, Ezzati Nazhad Dolatabadi J, de la Guardia M. Nanomaterials and phase sensitive based signal enhancment in surface plasmon resonance. Biosens Bioelectron 2018; 110:118-131. [PMID: 29604520 DOI: 10.1016/j.bios.2018.03.051] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 03/13/2018] [Accepted: 03/22/2018] [Indexed: 01/19/2023]
Abstract
Measurement of small molecules in extremely dilute concentrations of analyte play an important role in different issues ranging from food industry to biological, pharmaceutical and therapeutical applications. Surface plasmon resonance (SPR) sensors can be a suitable choice for detection of small molecules based on interactions with biomolecules. However, sensitivity of the system for detection of these molecules is very low. Improving sensitivity has been a challenge for years. Therefore, different methods have been used to enhance SPR signals. The SPR signal enhancement using numerous nanomaterials has provided exciting results. Among various nanomaterials, metal nanoparticles (for instance gold, silver and magnetic nanoparticles), quantum dots, nanorads, and carbon-based nanostructures have got much attention due to ease in fabrication, appropriate size and shape. In addition to the advantages provided by using nanomaterials, signal enhancement provided by the appropriate use of phase information of the reflected light could be also important to improve SPR sensitivity. Phase-sensitive SPR sensors are able to detect infinitesimal changes in external properties of target while traditional type of SPR cannot demonstrate these changes. This article provides an overview on signal enhancment in SPR using nanomaterials and properties of light. We also discuss on recent progresses of the field, describing basic concepts concerning nanostructures as well as phase-sensitive sensors as platform for enhancement of signal in SPR.
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Affiliation(s)
- Saeideh Mohammadzadeh-Asl
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Medical Physics, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ahmad Keshtkar
- Department of Medical Physics, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Miguel de la Guardia
- Department of Analytical Chemistry, University of Valencia, Dr. Moliner 50, 46100 Burjassot, Valencia, Spain.
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18
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Zhang S, Geryak R, Geldmeier J, Kim S, Tsukruk VV. Synthesis, Assembly, and Applications of Hybrid Nanostructures for Biosensing. Chem Rev 2017; 117:12942-13038. [DOI: 10.1021/acs.chemrev.7b00088] [Citation(s) in RCA: 206] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Shuaidi Zhang
- School of Materials Science
and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Ren Geryak
- School of Materials Science
and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Jeffrey Geldmeier
- School of Materials Science
and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Sunghan Kim
- School of Materials Science
and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Vladimir V. Tsukruk
- School of Materials Science
and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
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19
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Shriver-Lake LC, Zabetakis D, Goldman ER, Anderson GP. Evaluation of anti-botulinum neurotoxin single domain antibodies with additional optimization for improved production and stability. Toxicon 2017; 135:51-58. [DOI: 10.1016/j.toxicon.2017.06.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 06/01/2017] [Accepted: 06/02/2017] [Indexed: 01/27/2023]
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20
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Greene MK, Richards DA, Nogueira JCF, Campbell K, Smyth P, Fernández M, Scott CJ, Chudasama V. Forming next-generation antibody-nanoparticle conjugates through the oriented installation of non-engineered antibody fragments. Chem Sci 2017; 9:79-87. [PMID: 29629076 PMCID: PMC5869316 DOI: 10.1039/c7sc02747h] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 08/08/2017] [Indexed: 12/15/2022] Open
Abstract
Enabling oriented installation of non-engineered antibody fragments on nanoparticle surfaces to create next-generation antibody–nanoparticle conjugates.
The successful development of targeted nanotherapeutics is contingent upon the conjugation of therapeutic nanoparticles to target-specific ligands, with particular emphasis being placed on antibody-based ligands. Thus, new methods that enable the covalent and precise installation of targeting antibodies to nanoparticle surfaces are greatly desired, especially those which do not rely on costly and time-consuming antibody engineering techniques. Herein we present a novel method for the highly controlled and oriented covalent conjugation of non-engineered antibody F(ab) fragments to PLGA–PEG nanoparticles using disulfide-selective pyridazinedione linkers and strain-promoted alkyne–azide click chemistry. Exemplification of this method with trastuzumab and cetuximab showed significant improvements in both conjugation efficiency and antigen binding capability, when compared to commonly employed strategies for antibody–nanoparticle construction. This new approach paves the way for the development of antibody-targeted nanomedicines with improved paratope availability, reproducibility and uniformity to enhance both biological activity and ease of manufacture.
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Affiliation(s)
- Michelle K Greene
- Centre for Cancer Research and Cell Biology , School of Medicine , Dentistry and Biomedical Sciences , Queen's University Belfast , Belfast , UK .
| | | | | | - Katrina Campbell
- Institute for Global Food Security , School of Biological Sciences , Queen's University Belfast , Belfast , UK
| | - Peter Smyth
- Centre for Cancer Research and Cell Biology , School of Medicine , Dentistry and Biomedical Sciences , Queen's University Belfast , Belfast , UK .
| | - Marcos Fernández
- Department of Chemistry , University College London , London , UK .
| | - Christopher J Scott
- Centre for Cancer Research and Cell Biology , School of Medicine , Dentistry and Biomedical Sciences , Queen's University Belfast , Belfast , UK .
| | - Vijay Chudasama
- Department of Chemistry , University College London , London , UK . .,Research Institute for Medicines (iMed.ULisboa) , Faculty of Pharmacy , Universidade de Lisboa , Lisbon , Portugal
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21
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Determination of ricin intoxication in biological samples by monitoring depurinated 28S rRNA in a unique reverse transcription-ligase-polymerase chain reaction assay. Forensic Toxicol 2017. [DOI: 10.1007/s11419-017-0377-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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22
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Li CH, Xiao X, Tao J, Wang DM, Huang CZ, Zhen SJ. A graphene oxide-based strand displacement amplification platform for ricin detection using aptamer as recognition element. Biosens Bioelectron 2017; 91:149-154. [PMID: 28006682 DOI: 10.1016/j.bios.2016.12.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 11/24/2016] [Accepted: 12/05/2016] [Indexed: 12/21/2022]
Abstract
The toxic plant protein ricin is a potential agent for criminal or bioterrorist attacks due to the wide availability and relative ease of preparation. Herein, we developed a novel strategy for the detection of ricin B-chain (RTB) based on isothermal strand-displacement polymerase reaction (ISDPR) by using aptamer as a recognition element and graphene oxide (GO) as a low background platform. In this method, ricin-binding aptamer (RBA) hybridized with a short blocker firstly, and then was immobilized on the surface of streptavidin-coated magnetic beads (MBs). The addition of RTB could release the blocker, which could hybridize with the dye-modified hairpin probe and trigger the ISDPR, resulting in high fluorescence intensity. In the absence of RTB, however, the fluorescence of the dye could be quenched strongly by GO, resulting in the extremely low background signal. Thus, RTB could be sensitively detected by the significantly increased fluorescence signal. The linear range of the current analytical system was from 0.75μg/mL to 100μg/mL and the limit of detection (3σ) was 0.6μg/mL. This method has been successfully utilized for the detection of both the RTB and the entire ricin toxin in real samples, and it could be generalized to any kind of target detection based on an appropriate aptamer.
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Affiliation(s)
- Chun Hong Li
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, 400715 Chongqing, PR China
| | - Xue Xiao
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, 400715 Chongqing, PR China
| | - Jing Tao
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, 400715 Chongqing, PR China
| | - Dong Mei Wang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, 400715 Chongqing, PR China
| | - Cheng Zhi Huang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, 400715 Chongqing, PR China; College of Pharmaceutical Sciences, Southwest University, 400715 Chongqing, PR China.
| | - Shu Jun Zhen
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, 400715 Chongqing, PR China.
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23
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Arkadash V, Yosef G, Shirian J, Cohen I, Horev Y, Grossman M, Sagi I, Radisky ES, Shifman JM, Papo N. Development of High Affinity and High Specificity Inhibitors of Matrix Metalloproteinase 14 through Computational Design and Directed Evolution. J Biol Chem 2017; 292:3481-3495. [PMID: 28087697 DOI: 10.1074/jbc.m116.756718] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 01/12/2017] [Indexed: 12/13/2022] Open
Abstract
Degradation of the extracellular matrices in the human body is controlled by matrix metalloproteinases (MMPs), a family of more than 20 homologous enzymes. Imbalance in MMP activity can result in many diseases, such as arthritis, cardiovascular diseases, neurological disorders, fibrosis, and cancers. Thus, MMPs present attractive targets for drug design and have been a focus for inhibitor design for as long as 3 decades. Yet, to date, all MMP inhibitors have failed in clinical trials because of their broad activity against numerous MMP family members and the serious side effects of the proposed treatment. In this study, we integrated a computational method and a yeast surface display technique to obtain highly specific inhibitors of MMP-14 by modifying the natural non-specific broad MMP inhibitor protein N-TIMP2 to interact optimally with MMP-14. We identified an N-TIMP2 mutant, with five mutations in its interface, that has an MMP-14 inhibition constant (Ki ) of 0.9 pm, the strongest MMP-14 inhibitor reported so far. Compared with wild-type N-TIMP2, this variant displays ∼900-fold improved affinity toward MMP-14 and up to 16,000-fold greater specificity toward MMP-14 relative to other MMPs. In an in vitro and cell-based model of MMP-dependent breast cancer cellular invasiveness, this N-TIMP2 mutant acted as a functional inhibitor. Thus, our study demonstrates the enormous potential of a combined computational/directed evolution approach to protein engineering. Furthermore, it offers fundamental clues into the molecular basis of MMP regulation by N-TIMP2 and identifies a promising MMP-14 inhibitor as a starting point for the development of protein-based anticancer therapeutics.
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Affiliation(s)
- Valeria Arkadash
- Department of Biotechnology Engineering and the National Institute of Biotechnology in the Negev, Ben-Gurion University of the Negev, 84105 Beer-Sheva, Israel
| | - Gal Yosef
- Department of Biotechnology Engineering and the National Institute of Biotechnology in the Negev, Ben-Gurion University of the Negev, 84105 Beer-Sheva, Israel
| | - Jason Shirian
- Department of Biological Chemistry, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel
| | - Itay Cohen
- Department of Biotechnology Engineering and the National Institute of Biotechnology in the Negev, Ben-Gurion University of the Negev, 84105 Beer-Sheva, Israel
| | - Yuval Horev
- Department of Biotechnology Engineering and the National Institute of Biotechnology in the Negev, Ben-Gurion University of the Negev, 84105 Beer-Sheva, Israel
| | - Moran Grossman
- Department of Biological Regulation, Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Irit Sagi
- Department of Biological Regulation, Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Evette S Radisky
- Department of Cancer Biology, Mayo Clinic Comprehensive Cancer Center, Jacksonville, Florida 32224
| | - Julia M Shifman
- Department of Biological Chemistry, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel.
| | - Niv Papo
- Department of Biotechnology Engineering and the National Institute of Biotechnology in the Negev, Ben-Gurion University of the Negev, 84105 Beer-Sheva, Israel.
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24
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Richards DA, Maruani A, Chudasama V. Antibody fragments as nanoparticle targeting ligands: a step in the right direction. Chem Sci 2017; 8:63-77. [PMID: 28451149 PMCID: PMC5304706 DOI: 10.1039/c6sc02403c] [Citation(s) in RCA: 172] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 09/05/2016] [Indexed: 12/13/2022] Open
Abstract
Recent advances in nanomedicine have shown that dramatic improvements in nanoparticle therapeutics and diagnostics can be achieved through the use of disease specific targeting ligands. Although immunoglobulins have successfully been employed for the generation of actively targeted nanoparticles, their use is often hampered by the suboptimal characteristics of the resulting complexes. Emerging data suggest that a switch in focus from full antibodies to antibody derived fragments could help to alleviate these problems and expand the potential of antibody-nanoparticle conjugates as biomedical tools. This review aims to highlight how antibody derived fragments have been utilised to overcome both fundamental and practical issues encountered during the design and application of antibody-targeted nanoparticles.
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Affiliation(s)
- Daniel A Richards
- Department of Chemistry , University College London , 20 Gordon Street , London , WC1H 0AJ , UK . ; ; Tel: +44 (0)207 679 2077
| | - Antoine Maruani
- Department of Chemistry , University College London , 20 Gordon Street , London , WC1H 0AJ , UK . ; ; Tel: +44 (0)207 679 2077
| | - Vijay Chudasama
- Department of Chemistry , University College London , 20 Gordon Street , London , WC1H 0AJ , UK . ; ; Tel: +44 (0)207 679 2077
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25
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Fan JR, Zhu J, Wu WG, Huang Y. Plasmonic Metasurfaces Based on Nanopin-Cavity Resonator for Quantitative Colorimetric Ricin Sensing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1601710. [PMID: 27709785 DOI: 10.1002/smll.201601710] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 08/27/2016] [Indexed: 06/06/2023]
Abstract
In view of the toxic potential of a bioweapon threat, rapid visual recognition and sensing of ricin has been of considerable interest while remaining a challenging task up to date. In this study, a gold nanopin-based colorimetric sensor is developed realizing a multicolor variation for ricin qualitative recognition and analysis. It is revealed that such plasmonic metasurfaces based on nanopin-cavity resonator exhibit reflective color appearance, due to the excitation of standing-wave resonances of narrow bandwidth in visible region. This clear color variation is a consequence of the reflective color mixing defined by different resonant wavelengths. In addition, the colored metasurfaces appear sharp color difference in a narrow refractive index range, which makes them especially well-suited for sensing applications. Therefore, this antibody-functionalized nanopin-cavity biosensor features high sensitivity and fast response, allowing for visual quantitative ricin detection within the range of 10-120 ng mL-1 (0.15 × 10-9 -1.8 × 10-9 m), a limit of detection of 10 ng mL-1 , and the typical measurement time of less than 10 min. The on-chip integration of such nanopin metasurfaces to portable colorimetric microfluidic device may be envisaged for the quantitative studies of a variety of biochemical molecules.
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Affiliation(s)
- Jiao-Rong Fan
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Institute of Microelectronics, Peking University, Beijing, 100871, P. R. China
- Innovation Center for MicroNanoelectronics and Integrated System, Beijing, 100871, P. R. China
| | - Jia Zhu
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Institute of Microelectronics, Peking University, Beijing, 100871, P. R. China
- Innovation Center for MicroNanoelectronics and Integrated System, Beijing, 100871, P. R. China
| | - Wen-Gang Wu
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Institute of Microelectronics, Peking University, Beijing, 100871, P. R. China
- Innovation Center for MicroNanoelectronics and Integrated System, Beijing, 100871, P. R. China
| | - Yun Huang
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Institute of Microelectronics, Peking University, Beijing, 100871, P. R. China
- Innovation Center for MicroNanoelectronics and Integrated System, Beijing, 100871, P. R. China
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26
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Ouyang H, Shu Q, Wang W, Wang Z, Yang S, Wang L, Fu Z. An ultra-facile and label-free immunoassay strategy for detection of copper (II) utilizing chemiluminescence self-enhancement of Cu (II)-ethylenediaminetetraacetate chelate. Biosens Bioelectron 2016; 85:157-163. [DOI: 10.1016/j.bios.2016.05.007] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 04/27/2016] [Accepted: 05/02/2016] [Indexed: 11/30/2022]
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27
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Rowland CE, Brown CW, Delehanty JB, Medintz IL. Nanomaterial-based sensors for the detection of biological threat agents. MATERIALS TODAY (KIDLINGTON, ENGLAND) 2016; 19:464-477. [PMID: 32288600 PMCID: PMC7108310 DOI: 10.1016/j.mattod.2016.02.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The danger posed by biological threat agents and the limitations of modern detection methods to rapidly identify them underpins the need for continued development of novel sensors. The application of nanomaterials to this problem in recent years has proven especially advantageous. By capitalizing on large surface/volume ratios, dispersability, beneficial physical and chemical properties, and unique nanoscale interactions, nanomaterial-based biosensors are being developed with sensitivity and accuracy that are starting to surpass traditional biothreat detection methods, yet do so with reduced sample volume, preparation time, and assay cost. In this review, we start with an overview of bioagents and then highlight the breadth of nanoscale sensors that have recently emerged for their detection.
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Affiliation(s)
- Clare E. Rowland
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, DC 20375, USA
- National Research Council, Washington, DC 20036, USA
| | - Carl W. Brown
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, DC 20375, USA
- College of Science, George Mason University, Fairfax, VA 22030, USA
| | - James B. Delehanty
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, DC 20375, USA
| | - Igor L. Medintz
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, DC 20375, USA
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28
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A SPR biosensor based on signal amplification using antibody-QD conjugates for quantitative determination of multiple tumor markers. Sci Rep 2016; 6:33140. [PMID: 27615417 PMCID: PMC5018874 DOI: 10.1038/srep33140] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 08/22/2016] [Indexed: 12/21/2022] Open
Abstract
The detection of tumor markers is very important in early cancer diagnosis; however, tumor markers are usually present at very low concentrations, especially in the early stages of tumor development. Surface plasmon resonance (SPR) is widely used to detect biomolecular interactions; it has inherent advantages of being high-throughput, real-time, and label-free technique. However, its sensitivity needs essential improvement for practical applications. In this study, we developed a signal amplification strategy using antibody-quantum dot (QD) conjugates for the sensitive and quantitative detection of α-fetoprotein (AFP), carcinoembryonic antigen (CEA) and cytokeratin fragment 21-1 (CYFRA 21-1) in clinical samples. The use of a dual signal amplification strategy using AuNP-antibody and antibody-QD conjugates increased the signal amplification by 50-folds. The constructed SPR biosensor showed a detection limit as low as 0.1 ng/mL for AFP, CEA, and CYFRA 21-1. Moreover, the results obtained using this SPR biosensor were consistent with those obtained using the electrochemiluminescence method. Thus, the constructed SPR biosensor provides a highly sensitive and specific approach for the detection of tumor markers. This SPR biosensor can be expected to be readily applied for the detection of other tumor markers and can offer a potentially powerful solution for tumor screening.
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29
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Kong W, Yang X, Yang M, Zhou H, Ouyang Z, Zhao M. Photoluminescent nanosensors capped with quantum dots for high-throughput determination of trace contaminants: Strategies for enhancing analytical performance. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2015.07.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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30
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Stern D, Pauly D, Zydek M, Müller C, Avondet MA, Worbs S, Lisdat F, Dorner MB, Dorner BG. Simultaneous differentiation and quantification of ricin and agglutinin by an antibody-sandwich surface plasmon resonance sensor. Biosens Bioelectron 2016; 78:111-117. [DOI: 10.1016/j.bios.2015.11.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 10/23/2015] [Accepted: 11/08/2015] [Indexed: 01/26/2023]
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31
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Liu JL, Walper SA, Turner KB, Lee AB, Medintz IL, Susumu K, Oh E, Zabetakis D, Goldman ER, Anderson GP. Conjugation of biotin-coated luminescent quantum dots with single domain antibody-rhizavidin fusions. ACTA ACUST UNITED AC 2016; 10:56-65. [PMID: 28352525 PMCID: PMC5040863 DOI: 10.1016/j.btre.2016.03.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 02/29/2016] [Accepted: 03/01/2016] [Indexed: 12/28/2022]
Abstract
Single domain antibody—rhizavidin fusion bioconjugated biotin coated quantum dots. Provided facile and effective method to orient antibodies on QD surface. Accomplished improved production of His-tagged rhizavidin (RZh) in E. coli. Demonstrated utility of RZh as a replacement for tetrameric biotin binders.
Straightforward and effective methods are required for the bioconjugation of proteins to surfaces and particles. Previously we demonstrated that the fusion of a single domain antibody with the biotin binding molecule rhizavidin provided a facile method to coat biotin-modified surfaces with a highly active and oriented antibody. Here, we constructed similar single domain antibody—rhizavidin fusions as well as unfused rhizavidin with a His-tag. The unfused rhizavidin produced efficiently and its utility for assay development was demonstrated in surface plasmon resonance experiments. The single domain antibody-rhizavidin fusions were utilized to coat quantum dots that had been prepared with surface biotins. Preparation of antibody coated quantum dots by this means was found to be both easy and effective. The prepared single domain antibody-quantum dot reagent was characterized by surface plasmon resonance and applied to toxin detection in a fluoroimmunoassay sensing format.
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Affiliation(s)
- Jinny L Liu
- Naval Research Laboratory, Center for Bio/Molecular Science and Engineering, 4555 Overlook Ave SW, Washington DC 20375, USA
| | - Scott A Walper
- Naval Research Laboratory, Center for Bio/Molecular Science and Engineering, 4555 Overlook Ave SW, Washington DC 20375, USA
| | - Kendrick B Turner
- Naval Research Laboratory, Center for Bio/Molecular Science and Engineering, 4555 Overlook Ave SW, Washington DC 20375, USA
| | | | - Igor L Medintz
- Naval Research Laboratory, Center for Bio/Molecular Science and Engineering, 4555 Overlook Ave SW, Washington DC 20375, USA
| | - Kimihiro Susumu
- Sotera Defense Solutions, Inc., 7230 Lee Deforest Drive, Columbia, MD 21046, USA
| | - Eunkeu Oh
- Sotera Defense Solutions, Inc., 7230 Lee Deforest Drive, Columbia, MD 21046, USA
| | - Dan Zabetakis
- Naval Research Laboratory, Center for Bio/Molecular Science and Engineering, 4555 Overlook Ave SW, Washington DC 20375, USA
| | - Ellen R Goldman
- Naval Research Laboratory, Center for Bio/Molecular Science and Engineering, 4555 Overlook Ave SW, Washington DC 20375, USA
| | - George P Anderson
- Naval Research Laboratory, Center for Bio/Molecular Science and Engineering, 4555 Overlook Ave SW, Washington DC 20375, USA
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An Electrochemiluminescence Immunosensor Based on Gold-Magnetic Nanoparticles and Phage Displayed Antibodies. SENSORS 2016; 16:308. [PMID: 26927130 PMCID: PMC4813883 DOI: 10.3390/s16030308] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 01/28/2016] [Accepted: 01/28/2016] [Indexed: 12/23/2022]
Abstract
Using the multiple advantages of the ultra-highly sensitive electrochemiluminescence (ECL) technique, Staphylococcus protein A (SPA) functionalized gold-magnetic nanoparticles and phage displayed antibodies, and using gold-magnetic nanoparticles coated with SPA and coupled with a polyclonal antibody (pcAb) as magnetic capturing probes, and Ru(bpy)32+-labeled phage displayed antibody as a specific luminescence probe, this study reports a new way to detect ricin with a highly sensitive and specific ECL immunosensor and amplify specific detection signals. The linear detection range of the sensor was 0.0001~200 µg/L, and the limit of detection (LOD) was 0.0001 µg/L, which is 2500-fold lower than that of the conventional ELISA technique. The gold-magnetic nanoparticles, SPA and Ru(bpy)32+-labeled phage displayed antibody displayed different amplifying effects in the ECL immunosensor and can decrease LOD 3-fold, 3-fold and 20-fold, respectively, compared with the ECL immunosensors without one of the three effects. The integrated amplifying effect can decrease the LOD 180-fold. The immunosensor integrates the unique advantages of SPA-coated gold-magnetic nanoparticles that improve the activity of the functionalized capturing probe, and the amplifying effect of the Ru(bpy)32+-labeled phage displayed antibodies, so it increases specificity, interference-resistance and decreases LOD. It is proven to be well suited for the analysis of trace amounts of ricin in various environmental samples with high recovery ratios and reproducibility.
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Turner KB, Alves NJ, Medintz IL, Walper SA. Improving the targeting of therapeutics with single-domain antibodies. Expert Opin Drug Deliv 2016; 13:561-70. [DOI: 10.1517/17425247.2016.1133583] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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34
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Sensitive detection of carcinoembryonic antigen using surface plasmon resonance biosensor with gold nanoparticles signal amplification. Talanta 2015; 140:143-149. [DOI: 10.1016/j.talanta.2015.03.041] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 03/17/2015] [Accepted: 03/22/2015] [Indexed: 11/18/2022]
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Walper SA, Turner KB, Medintz IL. Enzymatic bioconjugation of nanoparticles: developing specificity and control. Curr Opin Biotechnol 2015; 34:232-41. [PMID: 25955793 DOI: 10.1016/j.copbio.2015.04.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 03/30/2015] [Accepted: 04/01/2015] [Indexed: 12/31/2022]
Abstract
Nanoparticles are finding increasing roles in biotechnology for applications as contrast agents, probes, sensors, therapeutics and increasingly new value-added hybrid materials such as molecular logic devices. In most cases these materials must be conjugated to different types of biologicals such as proteins or DNA to accomplish this. However, most traditional methods of bioconjugation result in heterogeneous attachment and loss of activity. Bioorthogonal chemistries and in particular enzymatic labeling chemistries offer new strategies for catalyzing specific biomolecular attachment. We highlight current enzymatic labeling methods available for bioconjugating nanoparticles, some materials they have been used with, and how the resulting bioconjugates were applied. A discussion of the benefits and remaining issues associated with this type of bioconjugation chemistry and a brief perspective on how this field will develop is also provided.
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Affiliation(s)
- Scott A Walper
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, 4555 Overlook Avenue, S.W., Washington, DC 20375, USA
| | - Kendrick B Turner
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, 4555 Overlook Avenue, S.W., Washington, DC 20375, USA
| | - Igor L Medintz
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, 4555 Overlook Avenue, S.W., Washington, DC 20375, USA.
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Bilan R, Fleury F, Nabiev I, Sukhanova A. Quantum Dot Surface Chemistry and Functionalization for Cell Targeting and Imaging. Bioconjug Chem 2015; 26:609-24. [DOI: 10.1021/acs.bioconjchem.5b00069] [Citation(s) in RCA: 169] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Regina Bilan
- Laboratory
of Nano-Bioengineering, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 31 Kashirskoe sh., 115409 Moscow, Russian Federation
| | - Fabrice Fleury
- DNA
repair group, UFIP, CNRS UMR6286, Univertité de Nantes, 2 rue de la
Houssinière, 44322 Nantes Cedex 3, France
| | - Igor Nabiev
- Laboratory
of Nano-Bioengineering, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 31 Kashirskoe sh., 115409 Moscow, Russian Federation
- Laboratoire
de Recherche en Nanosciences, EA4682-LRN, 51 rue Cognacq Jay, UFR
de Pharmacie, Université de Reims Champagne-Ardenne, 51100 Reims, France
| | - Alyona Sukhanova
- Laboratory
of Nano-Bioengineering, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 31 Kashirskoe sh., 115409 Moscow, Russian Federation
- Laboratoire
de Recherche en Nanosciences, EA4682-LRN, 51 rue Cognacq Jay, UFR
de Pharmacie, Université de Reims Champagne-Ardenne, 51100 Reims, France
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Bozza WP, Tolleson WH, Rivera Rosado LA, Zhang B. Ricin detection: Tracking active toxin. Biotechnol Adv 2015; 33:117-123. [DOI: 10.1016/j.biotechadv.2014.11.012] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 10/22/2014] [Accepted: 11/30/2014] [Indexed: 12/11/2022]
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Breger JC, Walper SA, Oh E, Susumu K, Stewart MH, Deschamps JR, Medintz IL. Quantum dot display enhances activity of a phosphotriesterase trimer. Chem Commun (Camb) 2015; 51:6403-6. [DOI: 10.1039/c5cc00418g] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Phosphotrisomerase trimer assembled on a quantum dot. This construct displays enhanced catalytic over freely diffusing enzyme and has potential to be spun into a fiber.
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Affiliation(s)
- Joyce C. Breger
- Center for Bio/Molecular Science and Engineering
- Code 6900
- U. S. Naval Research Laboratory
- Washington
- USA
| | - Scott A. Walper
- Center for Bio/Molecular Science and Engineering
- Code 6900
- U. S. Naval Research Laboratory
- Washington
- USA
| | - Eunkeu Oh
- Optical Sciences Division
- Code 5600. U.S. Naval Research Laboratory
- Washington
- USA
- Sotera Defense Solutions
| | - Kimihiro Susumu
- Optical Sciences Division
- Code 5600. U.S. Naval Research Laboratory
- Washington
- USA
- Sotera Defense Solutions
| | - Michael H. Stewart
- Optical Sciences Division
- Code 5600. U.S. Naval Research Laboratory
- Washington
- USA
| | - Jeffrey R. Deschamps
- Center for Bio/Molecular Science and Engineering
- Code 6900
- U. S. Naval Research Laboratory
- Washington
- USA
| | - Igor L. Medintz
- Center for Bio/Molecular Science and Engineering
- Code 6900
- U. S. Naval Research Laboratory
- Washington
- USA
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Huang Y, Chen X, Wu S, Duan N, Yu Y, Wang Z. Homogeneous time-resolved fluorescence assay for the detection of ricin using an aptamer immobilized on europium-doped KGdF4 nanoparticles and graphene oxide as a quencher. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1422-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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40
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Herrera C, Vance DJ, Eisele LE, Shoemaker CB, Mantis NJ. Differential neutralizing activities of a single domain camelid antibody (VHH) specific for ricin toxin's binding subunit (RTB). PLoS One 2014; 9:e99788. [PMID: 24918772 PMCID: PMC4053406 DOI: 10.1371/journal.pone.0099788] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 05/17/2014] [Indexed: 11/18/2022] Open
Abstract
Ricin, a member of the A-B family of ribosome-inactivating proteins, is classified as a Select Toxin by the Centers for Disease Control and Prevention because of its potential use as a biothreat agent. In an effort to engineer therapeutics for ricin, we recently produced a collection of alpaca-derived, heavy-chain only antibody VH domains (VHH or “nanobody”) specific for ricin’s enzymatic (RTA) and binding (RTB) subunits. We reported that one particular RTB-specific VHH, RTB-B7, when covalently linked via a peptide spacer to different RTA-specific VHHs, resulted in heterodimers like VHH D10/B7 that were capable of passively protecting mice against a lethal dose challenge with ricin. However, RTB-B7 itself, when mixed with ricin at a 1∶10 toxin:antibody ratio did not afford any protection in vivo, even though it had demonstrable toxin-neutralizing activity in vitro. To better define the specific attributes of antibodies associated with ricin neutralization in vitro and in vivo, we undertook a more thorough characterization of RTB-B7. We report that RTB-B7, even at 100-fold molar excess (toxin:antibody) was unable to alter the toxicity of ricin in a mouse model. On the other hand, in two well-established cytotoxicity assays, RTB-B7 neutralized ricin with a 50% inhibitory concentration (IC50) that was equivalent to that of 24B11, a well-characterized and potent RTB-specific murine monoclonal antibody. In fact, RTB-B7 and 24B11 were virtually identical when compared across a series of in vitro assays, including adherence to and neutralization of ricin after the toxin was pre-bound to cell surface receptors. RTB-B7 differed from both 24B11 and VHH D10/B7 in that it was relatively less effective at blocking ricin attachment to receptors on host cells and was not able to form high molecular weight toxin:antibody complexes in solution. Whether either of these activities is important in ricin toxin neutralizing activity in vivo remains to be determined.
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Affiliation(s)
- Cristina Herrera
- Division of Infectious Disease, Wadsworth Center, New York State Department of Health, Albany, New York, United States of America
- Department of Biomedical Sciences, University at Albany School of Public Health, Albany, New York, United States of America
| | - David J. Vance
- Division of Infectious Disease, Wadsworth Center, New York State Department of Health, Albany, New York, United States of America
| | - Leslie E. Eisele
- Scientific Cores, Wadsworth Center, New York State Department of Health, Albany, New York, United States of America
| | - Charles B. Shoemaker
- Department of Infectious Disease and Global Health, Tufts Cummings School of Veterinary Medicine, North Grafton, Massachusetts, United States of America
| | - Nicholas J. Mantis
- Division of Infectious Disease, Wadsworth Center, New York State Department of Health, Albany, New York, United States of America
- Department of Biomedical Sciences, University at Albany School of Public Health, Albany, New York, United States of America
- * E-mail:
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41
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Zeptomole detection of C-reactive protein in serum by a nanoparticle amplified surface plasmon resonance imaging aptasensor. Sci Rep 2014; 4:5129. [PMID: 24875139 PMCID: PMC4038818 DOI: 10.1038/srep05129] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 05/14/2014] [Indexed: 01/13/2023] Open
Abstract
Diagnostic biomarkers (i.e. proteins) are often in low abundance in bodily fluids presenting many challenges for their detection. In order to extend the application of SPRi systems in detecting biomarkers at ultralow levels, we combine the advantage of aptamer technology with nanomaterials and microwave-assisted surface functionalization. By implementing a sandwich assay through the introduction of aptamer-modified quantum dots (QDs), it was possible to measure 7 zeptomole (at 5 fg/mL) of C-reactive protein (CRP) selectively in spiked human serum. It is expected that the proposed platform will provide new direction in designing ultrasensitive SPRi biosensors with multiplexing capabilities.
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42
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Kinetic Characterization of a Panel of High-Affinity Monoclonal Antibodies Targeting Ricin and Recombinant Re-Formatting for Biosensor Applications. Antibodies (Basel) 2014. [DOI: 10.3390/antib3020215] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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43
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Wei F, Wu Y, Xu G, Gao Y, Yang J, Liu L, Zhou P, Hu Q. Molecularly imprinted polymer based on CdTe@SiO2 quantum dots as a fluorescent sensor for the recognition of norepinephrine. Analyst 2014; 139:5785-92. [DOI: 10.1039/c4an00951g] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A fluorescent sensor with recognition ability for norepinephrine was simply prepared and actually used to determine norepinephrine in rat plasma.
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Affiliation(s)
- Fangdi Wei
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166, China
| | - Yanzi Wu
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166, China
| | - Guanhong Xu
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166, China
| | - Yankun Gao
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166, China
| | - Jing Yang
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166, China
| | - Liping Liu
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166, China
| | - Ping Zhou
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166, China
| | - Qin Hu
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166, China
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