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Debnath N, Live LS, Poudineh M. A microfluidic plasma separation device combined with a surface plasmon resonance biosensor for biomarker detection in whole blood. LAB ON A CHIP 2023; 23:572-579. [PMID: 36723239 DOI: 10.1039/d2lc00693f] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Biomarker detection in whole blood enables understanding of the cause, progression, relapse or outcome of treatment of a disease. Conventional biomarker detection techniques, such as enzyme-linked immunosorbent assay, polymerase chain reaction, and immunofluorescence, require long assay time, costly laboratory instruments, large reagent volume and sample pre-processing. Hence, there is an unmet need for reliable capture and detection of biomarkers in unprocessed blood which are adaptable to point-of-care (POC) testing. Here, we present a simple, low-cost, and rapid protein detection device from whole blood samples which has the potential to be employed in a POC setting. The platform consists of two components: a plasma separation device that extracts plasma from whole blood without the application of any external active forces and a SPR sensor chip that uses a label-free optical technique for the detection of biomarkers in the extracted plasma. We have demonstrated the detection of IgG and IgM biomolecules in unprocessed blood at concentrations lower than the physiological value within 15 min. The proposed technique has the potential for improving the diagnosis and screening of many diseases, including cancer, influenza, human immunodeficiency virus, and SARS-Cov2 at POC.
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Affiliation(s)
- Nandini Debnath
- Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
| | | | - Mahla Poudineh
- Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
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2
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Han C, Dong T, Wang P, Zhou F. Microfluidically Partitioned Dual Channels for Accurate Background Subtraction in Cellular Binding Studies by Surface Plasmon Resonance Microscopy. Anal Chem 2022; 94:17303-17311. [PMID: 36454605 DOI: 10.1021/acs.analchem.2c04324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Unlike conventional surface plasmon resonance (SPR) using an antifouling film to anchor biomolecules and a reference channel for background subtraction, SPR microscopy for single-cell analysis uses a protein- or polypeptide-modified gold substrate to immobilize cells and a cell-free area as the reference. In this work, we show that such a substrate is prone to nonspecific adsorption (NSA) of species from the cell culture media, resulting in false background signals that cannot be correctly subtracted. To obtain accurate kinetic results, we patterned a dual-channel substrate using a microfluidic device, with one channel having poly-l-lysine deposited in situ onto a preformed polyethylene glycol (PEG) self-assembled monolayer for cell immobilization and the other channel remaining as PEG-covered for reference. The two 2.0 mm-wide channels are separated by a 75 μm barrier, and parts of the channels can be readily positioned into the field of view of an SPR microscope. The use of this dual-channel substrate for background subtraction is contrasted with the conventional approach through the following binding studies: (1) wheat germ agglutinin (WGA) attachment to the N-acetyl glucosamine and N-acetyl-neuraminic acid sites of glycans on HFF cells, and (2) the S1 protein of the COVID-19 virus conjugation with angiotensin-converting enzyme 2 (ACE2) on the HEK293 cells. Both studies revealed that interferences by NSA and the surface plasmon polariton wave diffracted by cells can be excluded with the dual-channel substrate, and the much smaller refractive index changes caused by the injected solutions can be correctly subtracted. Consequently, sensorgrams with higher signal-to-noise ratios and shapes predicted by the correct binding model can be obtained with accurate kinetic and affinity parameters that are more biologically relevant. The affinity between S1 protein and ACE2 is comparable to that measured with recombinant ACE2, yet the binding kinetics is different, suggesting that the cell membrane does impose a kinetic barrier to their interaction.
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Affiliation(s)
- Chaowei Han
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan 250022, Shandong, P. R. China
| | - Tianbao Dong
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan 250022, Shandong, P. R. China
| | - Pengcheng Wang
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan 250022, Shandong, P. R. China
| | - Feimeng Zhou
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan 250022, Shandong, P. R. China
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3
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Víšová I, Houska M, Vaisocherová-Lísalová H. Biorecognition antifouling coatings in complex biological fluids: a review of functionalization aspects. Analyst 2022; 147:2597-2614. [PMID: 35621143 DOI: 10.1039/d2an00436d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Recent progress in biointerface research has highlighted the role of antifouling functionalizable coatings in the development of advanced biosensors for point-of-care bioanalytical and biomedical applications dealing with real-world complex samples. The resistance to nonspecific adsorption promotes the biorecognition performance and overall increases the reliability and specificity of the analysis. However, the process of modification with biorecognition elements (so-called functionalization) may influence the resulting antifouling properties. The extent of these effects concerning both functionalization procedures potentially changing the surface architecture and properties, and the physicochemical properties of anchored biorecognition elements, remains unclear and has not been summarized in the literature yet. This critical review summarizes these key functionalization aspects with respect to diverse antifouling architectures showing low or ultra-low fouling quantitative characteristics in complex biological media such as bodily fluids or raw food samples. The subsequent discussion focuses on the impact of functionalization on fouling resistance. Furthermore, this review discusses some of the drawbacks of available surface sensitive characterization methods and highlights the importance of suitable assessment of the resistance to fouling.
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Affiliation(s)
- Ivana Víšová
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 1999/2, 182 21 Prague 8, Czech Republic.
| | - Milan Houska
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 1999/2, 182 21 Prague 8, Czech Republic.
| | - Hana Vaisocherová-Lísalová
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 1999/2, 182 21 Prague 8, Czech Republic.
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4
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Chupradit S, Jasim SA, Bokov D, Mahmoud MZ, Roomi AB, Hachem K, Rudiansyah M, Suksatan W, Bidares R. Recent advances in biosensor devices for HER-2 cancer biomarker detection. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:1301-1310. [PMID: 35318477 DOI: 10.1039/d2ay00111j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The human epidermal growth factor receptor 2 (HER-2) protein is a member of the epidermal growth factor receptor (EGFR or ErbB) family and is a transmembrane tyrosine kinase receptor. HER-2 is highly regulated in ovarian, lung, gastric, oral, and breast cancers. The low specificity, complexity, expensiveness and the lack of sensitivity are essential restrictions in traditional diagnosis methods such as FISH, immunohistochemistry and PCR and these disadvantages led to the need for more studies on alternative methods. Biosensor technology has greatly affected the quality of human life owing to its features including, sensitivity, specificity, and rapid diagnosis and monitoring of different patient diseases. In this review article, we examine various biosensors, considering that they have been categorized based on the transducers used including piezoelectric biosensors, optical sensors such as fluorescence and surface plasmon resonance, and electrochemical types for the diagnosis of HER-2 and the effectiveness of some drugs against that. Attention to developing some types of biosensor devices such as colorimetric biosensors for HER-2 detection can be an important point in future studies.
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Affiliation(s)
- Supat Chupradit
- Department of Occupational Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | | | - Dmitry Bokov
- Institute of Pharmacy, Sechenov First Moscow State Medical University, 8 Trubetskaya St., Bldg. 2, Moscow, 119991, Russian Federation
- Laboratory of Food Chemistry, Federal Research Center of Nutrition, Biotechnology and Food Safety, 2/14 Ustyinsky pr., Moscow, 109240, Russian Federation
| | - Mustafa Z Mahmoud
- Department of Radiology and Medical Imaging, College of Applied Medical Sciences, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
- Faculty of Health, University of Canberra, Canberra, ACT, Australia
| | - Ali B Roomi
- PhD Biochemistry, Ministry of Education, Directorate of Education Thi-Qar, Thi-Qar, 64001, Iraq
- Biochemistry and Biological Engineering Research Group, Scientific Research Center, Al-Ayen University, Thi-Qar, 64001, Iraq
| | - Kadda Hachem
- Laboratory of Biotoxicology, Pharmacognosy and Biological Valorization of Plants (LBPVBP), Faculty of Sciences, University of Saida - Dr Moulay Tahar, 20000 Saida, Algeria
| | - Mohammad Rudiansyah
- Division of Nephrology & Hypertension, Department of Internal Medicine, Faculty of Medicine, Universitas Lambung Mangkurat, Banjarmasin, Indonesia
| | - Wanich Suksatan
- Faculty of Nursing, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok, 10210, Thailand
| | - Ramtin Bidares
- Department of Anatomy, Histology Forensic Medicine, Sapienza University of Rome, Rome, Italy
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5
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Azzouz A, Hejji L, Kim KH, Kukkar D, Souhail B, Bhardwaj N, Brown RJC, Zhang W. Advances in surface plasmon resonance-based biosensor technologies for cancer biomarker detection. Biosens Bioelectron 2022; 197:113767. [PMID: 34768064 DOI: 10.1016/j.bios.2021.113767] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 10/21/2021] [Accepted: 10/31/2021] [Indexed: 01/25/2023]
Abstract
Surface plasmon resonance approach is a highly useful option to offer optical and label-free detection of target bioanalytes with numerous advantages (e.g., low-cost fabrication, appreciable sensitivity, label-free detection, and outstanding accuracy). As such, it allows early diagnosis of cancer biomarkers to monitor tumor progression and to prevent the recurrence of oncogenic tumors. This work highlights the recent progress in SPR biosensing technology for the diagnosis of various cancer types (e.g., lung, breast, prostate, and ovarian). Further, the performance of various SPR biosensors is also evaluated in terms of the basic quality assurance criteria (e.g., limit of detection (LOD), selectivity, sensor response time, and reusability). Finally, the limitations and future challenges associated with SPR biosensors are also discussed with respect to cancer biomarker detection.
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Affiliation(s)
- Abdelmonaim Azzouz
- Department of Chemistry, Faculty of Science, University of Abdelmalek Essaadi, B.P. 2121, M'Hannech II, 93002, Tétouan, Morocco
| | - Lamia Hejji
- Department of Chemistry, Faculty of Science, University of Abdelmalek Essaadi, B.P. 2121, M'Hannech II, 93002, Tétouan, Morocco
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, South Korea.
| | - Deepak Kukkar
- Department of Nanotechnology, Sri Guru Granth Sahib World University, Fatehgarh Sahib, 140406, Punjab, India
| | - Badredine Souhail
- Department of Chemistry, Faculty of Science, University of Abdelmalek Essaadi, B.P. 2121, M'Hannech II, 93002, Tétouan, Morocco
| | - Neha Bhardwaj
- Department of Biotechnology, University Institute of Engineering Technology (UIET), Panjab University, Chandigarh, India
| | - Richard J C Brown
- Environment Department, National Physical Laboratory, Teddington, TW11 0LW, UK
| | - Wei Zhang
- School of Ecology and Environmental Science, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan, 450001, PR China
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6
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Hu Y, Long S, Fu H, She Y, Xu Z, Yoon J. Revisiting imidazolium receptors for the recognition of anions: highlighted research during 2010-2019. Chem Soc Rev 2020; 50:589-618. [PMID: 33174897 DOI: 10.1039/d0cs00642d] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Imidazolium based receptors selectively recognize anions, and have received more and more attention. In 2006 and 2010, we reviewed the mechanism and progress of imidazolium salt recognition of anions, respectively. In the past ten years, new developments have emerged in this area, including some new imidazolium motifs and the identification of a wider variety of biological anions. In this review, we discuss the progress of imidazolium receptors for the recognition of anions in the period of 2010-2019 and highlight the trends in this area. We first classify receptors based on motifs, including some newly emerging receptors, as well as new advances in existing receptor types at this stage. Then we discuss separately according to the types of anions, including ATP, GTP, DNA and RNA.
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Affiliation(s)
- Ying Hu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China.
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7
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Fattahi Z, Khosroushahi AY, Hasanzadeh M. Recent progress on developing of plasmon biosensing of tumor biomarkers: Efficient method towards early stage recognition of cancer. Biomed Pharmacother 2020; 132:110850. [PMID: 33068930 DOI: 10.1016/j.biopha.2020.110850] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 09/21/2020] [Accepted: 10/04/2020] [Indexed: 12/18/2022] Open
Abstract
Cancer is the second most extended disease with an improved death rate over the past several time. Due to the restrictions of cancer analysis methods, the patient's real survival rate is unknown. Therefore, early stage diagnosis of cancer is crucial for its strong detection. Bio-analysis based on biomarkers may help to overcome the problem Biosensors with high sensitivity and specificity, low-cost, high analysis speed and minimum limit of detection are practical alternatives for laboratory tests. Surface plasmon resonance (SPR) is reaching a maturity level sufficient for their application in detection and determination cancer biomarkers in clinical samples. This review discusses main concepts and performance characteristics of SPR biosensor. Mainly, it focuses on newly emerged enhanced SPR biosensors towards high-throughput and ultrasensitive screening of cancer biomarkers such as PSA, α-fetoprotein, CEA, CA125, CA 15-3, HER2, ctDNA, ALCAM, hCG, VEGF, TNF, Interleukin, IFN-γ, CD24, CD44, Ferritin, COLIV using labeling processes with focusing on the future application in biomedical research and clinical diagnosis. This article reviews current status of the field, showcasing a series of early successes in the application of SPR for clinical bioanalysis of cancer related biomolecules and detailing a series of considerations regarding sensing schemes, exposing issues with analysis in biofluids, while providing an outlook of the challenges currently associated with plasmonic materials, bioreceptor selection, microfluidics, and validation of a clinical bioassay for applying SPR biosensors to clinical samples. Research opportunities are proposed to further advance the field and transition SPR biosensors from research proof-of-concept stage to actual clinical usage.
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Affiliation(s)
- Zahra Fattahi
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ahmad Yari Khosroushahi
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran; Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Mohammad Hasanzadeh
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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8
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Liu L, Kuang Y, Wang Z, Chen Y. A photocleavable peptide-tagged mass probe for chemical mapping of epidermal growth factor receptor 2 (HER2) in human cancer cells. Chem Sci 2020; 11:11298-11306. [PMID: 34094372 PMCID: PMC8162480 DOI: 10.1039/d0sc04481d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 09/10/2020] [Indexed: 12/31/2022] Open
Abstract
Human epidermal growth factor receptor 2 (HER2) testing has great value for cancer diagnosis, prognosis and treatment selection. However, the clinical utility of HER2 is frequently tempered by the uncertainty regarding the accuracy of the methods currently available to assess HER2. The development of novel methods for accurate HER2 testing is in great demand. Considering the visualization features of in situ imaging and the quantitative capability of mass spectrometry, integration of the two components into a molecular mapping approach has attracted increasing interest. In this work, we reported an integrated chemical mapping approach using a photocleavable peptide-tagged mass probe for HER2 detection. The probe consists of four functional domains, including the recognition unit of an aptamer to catch HER2, a fluorescent dye moiety (FITC) for fluorescence imaging, a reporter peptide for mass spectrometric quantification, and a photocleavable linker for peptide release. After characterization of this novel probe (e.g., conjugation efficiency, binding affinity and specificity, and photolysis release efficiency), the probe binding and photolysis release conditions were optimized. Then, fluorescence images were collected, and the released reporter peptide after photolysis was quantified by liquid chromatography-tandem mass spectrometry (LC-MS/MS). A limit of quantification (LOQ) of 25 pM was obtained, which very well meets the requirements for clinical laboratory testing. Finally, the developed assay was applied for HER2 testing in four breast cancer cell lines and 42 pairs of human breast primary tumors and adjacent normal tissue samples. Overall, this integrated approach based on a photocleavable peptide-tagged mass probe can provide chemical mapping including both quantitative and visual information of HER2 reliably and consistently, and may pave the way for clinical applications in a more accurate manner.
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Affiliation(s)
- Liang Liu
- School of Pharmacy, Nanjing Medical University Nanjing 211166 China
- Department of Pharmacy, Zhongnan Hospital of Wuhan University Wuhan 430071 China
| | - Yuqiong Kuang
- School of Pharmacy, Nanjing Medical University Nanjing 211166 China
- Department of Pharmacy, The First Affiliated Hospital with Nanjing Medical University 210029 China
| | - Zhongcheng Wang
- School of Pharmacy, Nanjing Medical University Nanjing 211166 China
| | - Yun Chen
- School of Pharmacy, Nanjing Medical University Nanjing 211166 China
- State Key Laboratory of Reproductive Medicine, Key Laboratory of Cardiovascular & Cerebrovascular Medicine Nanjing 210029 China
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9
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Garifullina A, Shen AQ. Optimized Immobilization of Biomolecules on Nonspherical Gold Nanostructures for Efficient Localized Surface Plasmon Resonance Biosensing. Anal Chem 2019; 91:15090-15098. [PMID: 31692333 DOI: 10.1021/acs.analchem.9b03780] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Plasmonic biosensing techniques employ metal nanostructures, commonly gold (Au), often with biomolecules attached to their surfaces either directly or via other linkers. Various surface chemistry methods based on dispersion and covalent interactions are used to attach biomolecules to Au. As a result, when immobilizing a molecule on a metal surface, quantitative estimates of binding efficiency and stability of these surface chemistry methods are needed. Most prior work to compare such methods deals with bulk/thin film configurations or spherical nanoparticles, and very little is known about immobilization of biomolecules on plasmonic nanostructures of different shapes. Besides, due to rapid advancement of modern nanofabrication techniques, there is a growing need to determine an efficient surface chemistry method for immobilization of biomolecules on nonspherical plasmonic nanostructures. Previous comparison of immobilization methods on spherical Au nanoparticles has shown that physical adsorption resulted in the highest concentration of immobilized antibodies. In our work, we conducted a similar study and compared four representative Au surface functionalization methods as well as estimated how efficient these methods are at attaching biomolecules to nonspherical plasmonic Au nanostructures. We estimated the concentration of immobilized antibody that is specific to human C-reactive protein (anti-hCRP) by measuring the localized surface plasmon resonance (LSPR) shifts after exposing the surface of Au nanostructures to the antibody. Our results differ from the previously reported ones since the highest concentration of anti-hCRP was immobilized using 11-mercaptoundecanoic acid (MUA) chemistry. We demonstrated that immobilized antibodies retained their stability and specificity toward hCRP throughout the immunoassay when diluted hCRP or hCRP-spiked human serum samples were used. These findings have important implications for the fields of biosensing and diagnostics that employ nonspherical plasmonic nanostructures since an overall performance of these devices depends on efficient biomolecule immobilization.
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Affiliation(s)
- Ainash Garifullina
- Micro/Bio/Nanofluidics Unit , Okinawa Institute of Science and Technology Graduate University , 1919-1 Tancha , Onna-son , Okinawa 904-0495 , Japan
| | - Amy Q Shen
- Micro/Bio/Nanofluidics Unit , Okinawa Institute of Science and Technology Graduate University , 1919-1 Tancha , Onna-son , Okinawa 904-0495 , Japan
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10
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Bellassai N, D'Agata R, Jungbluth V, Spoto G. Surface Plasmon Resonance for Biomarker Detection: Advances in Non-invasive Cancer Diagnosis. Front Chem 2019; 7:570. [PMID: 31448267 PMCID: PMC6695566 DOI: 10.3389/fchem.2019.00570] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 07/26/2019] [Indexed: 12/24/2022] Open
Abstract
Biomarker-based cancer analysis has great potential to lead to a better understanding of disease at the molecular level and to improve early diagnosis and monitoring. Unlike conventional tissue biopsy, liquid biopsy allows the detection of a large variety of circulating biomarkers, such as microRNA (miRNA), exosomes, circulating tumor DNA (ctDNA), circulating tumor cells (CTCs), and proteins, in an easily accessible and minimally invasive way. In this review, we describe and evaluate the relevance and applicability of surface plasmon resonance (SPR) and localized SPR (LSPR)-based platforms for the detection of different classes of cancer biomarkers in liquid biopsy samples. Firstly, we critically discuss unsolved problems and issues in capturing and analyzing biomarkers. Secondly, we highlight current challenges which need to be resolved in applying SPR biosensors into clinical practice. Then, we mainly focus on applications of SPR-based platforms that process a patient sample aiming to detect and quantify biomarkers as a minimally invasive liquid biopsy tool for cancer patients appearing over the last 5 years. Finally, we describe the analytical performances of selected SPR biosensor assays and their significant advantages in terms of high sensitivity and specificity as well as accuracy and workflow simplicity.
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Affiliation(s)
- Noemi Bellassai
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Catania, Italy
| | - Roberta D'Agata
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Catania, Italy
| | - Vanessa Jungbluth
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Catania, Italy
| | - Giuseppe Spoto
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Catania, Italy
- Istituto Nazionale di Biostrutture e Biosistemi, Università degli Studi di Catania, Catania, Italy
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11
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McKeating KS, Hinman SS, Rais NA, Zhou Z, Cheng Q. Antifouling Lipid Membranes over Protein A for Orientation-Controlled Immunosensing in Undiluted Serum and Plasma. ACS Sens 2019; 4:1774-1782. [PMID: 31262175 DOI: 10.1021/acssensors.9b00257] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
An important advance in biosensor research is the extension and application of laboratory-developed methodologies toward clinical diagnostics, though the propensity toward nonspecific binding of materials in clinically relevant matrices, such as human blood serum and plasma, frequently leads to compromised assays. Several surface chemistries have been developed to minimize nonspecific interactions of proteins and other biological components found within blood and serum samples, though these often exhibit substantially variable outcomes. Herein we report a surface chemistry consisting of a charged-matched supported lipid membrane that has been tailored to form over a gold surface functionalized with protein A. Fine tuning of the interfacial charge of this membrane, along with rational selection of a backfilling self-assembled monolayer, allows for high surface coverage with retention of orientation-controlled capture antibody attachment. We demonstrate using surface-plasmon resonance (SPR) that this highly charged lipid membrane is antifouling, allowing for complete removal of nonspecific human serum and plasma components using only a mild buffer rinse, which we attribute to unique steric interactions with the underlying surface. Furthermore, this surface chemistry is successfully applied for specific detection of IgG and cholera toxin in undiluted human biofluids with negligible sacrifice of SPR signal compared to buffered analysis. This novel lipid membrane interface over protein A may open new avenues for direct biosensing of disease markers within clinical samples.
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Affiliation(s)
| | | | | | - Zhiguo Zhou
- Luna Innovations Inc., Danville, Virginia 24541, United States
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12
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Abstract
HER2-positive breast cancer is a particularly aggressive type of breast cancer. Indication of HER2 positivity is essential for its treatment. In addition to a few FDA-approved methods such as immunohistochemical (IHC) detection of HER2 protein expression and in situ hybridization (ISH) assessment of HER2 gene amplification, several novel methods have been developed for HER2 testing in recent years. This chapter provides an overview of HER2 testing with emphasis on those new methods.
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Affiliation(s)
- Yun Chen
- School of Pharmacy, Nanjing Medical University, Nanjing, China.
| | - Liang Liu
- School of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Ronghua Ni
- School of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Weixian Zhou
- School of Pharmacy, Nanjing Medical University, Nanjing, China
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13
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Xia Y, Zhang P, Yuan H, Su R, Huang R, Qi W, He Z. Sequential sandwich immunoassay for simultaneous detection in trace samples using single-channel surface plasmon resonance. Analyst 2019; 144:5700-5705. [DOI: 10.1039/c9an01183h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
An efficient and facile method of a sequential sandwich immunoassay was developed for simultaneous detection in trace samples using single-channel SPR with low-dosage samples and testing times.
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Affiliation(s)
- Yinqiang Xia
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Membrane Science and Desalination Technology
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Peiqian Zhang
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Membrane Science and Desalination Technology
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Hui Yuan
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Membrane Science and Desalination Technology
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Rongxin Su
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Membrane Science and Desalination Technology
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Renliang Huang
- School of Environmental Science and Engineering
- Tianjin University
- Tianjin 300072
- PR China
| | - Wei Qi
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Membrane Science and Desalination Technology
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Zhimin He
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Membrane Science and Desalination Technology
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
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14
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Kohn EM, Lee JY, Calabro A, Vaden TD, Caputo GA. Heme Dissociation from Myoglobin in the Presence of the Zwitterionic Detergent N, N-Dimethyl- N-Dodecylglycine Betaine: Effects of Ionic Liquids. Biomolecules 2018; 8:biom8040126. [PMID: 30380655 PMCID: PMC6315634 DOI: 10.3390/biom8040126] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 10/23/2018] [Accepted: 10/24/2018] [Indexed: 01/24/2023] Open
Abstract
We have investigated myoglobin protein denaturation using the zwitterionic detergent Empigen BB (EBB, N,N-Dimethyl-N-dodecylglycine betaine). A combination of absorbance, fluorescence, and circular dichroism spectroscopic measurements elucidated the protein denaturation and heme dissociation from myoglobin. The results indicated that Empigen BB was not able to fully denature the myoglobin structure, but apparently can induce the dissociation of the heme group from the protein. This provides a way to estimate the heme binding free energy, ΔGdissociation. As ionic liquids (ILs) have been shown to perturb the myoglobin protein, we have investigated the effects of the ILs 1-butyl-3-methylimidazolium chloride (BMICl), 1-ethyl-3-methylimidazolium acetate (EMIAc), and 1-butyl-3-methylimidazolium tetrafluoroborate (BMIBF4) in aqueous solution on the ΔGdissociation values. Absorbance experiments show the ILs had minimal effect on ΔGdissociation values when compared to controls. Fluorescence and circular dichroism data confirm the ILs have no effect on heme dissociation, demonstrating that low concentrations ILs do not impact the heme dissociation from the protein and do not significantly denature myoglobin on their own or in combination with EBB. These results provide important data for future studies of the mechanism of IL-mediated protein stabilization/destabilization and biocompatibility studies.
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Affiliation(s)
- Eric M Kohn
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA.
- Bantivoglio Honors College, Rowan University, Glassboro, NJ 08028, USA.
| | - Joshua Y Lee
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA.
- Bantivoglio Honors College, Rowan University, Glassboro, NJ 08028, USA.
| | - Anthony Calabro
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA.
| | - Timothy D Vaden
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA.
| | - Gregory A Caputo
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA.
- Department of Molecular & Cellular Biosciences, Rowan University, Glassboro, NJ 08028, USA.
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15
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Benedetto A, Ballone P. Room-Temperature Ionic Liquids and Biomembranes: Setting the Stage for Applications in Pharmacology, Biomedicine, and Bionanotechnology. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:9579-9597. [PMID: 29510045 DOI: 10.1021/acs.langmuir.7b04361] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Empirical evidence and conceptual elaboration reveal and rationalize the remarkable affinity of organic ionic liquids for biomembranes. Cations of the so-called room-temperature ionic liquids (RTILs), in particular, are readily absorbed into the lipid fraction of biomembranes, causing a variety of observable biological effects, including generic cytotoxicity, broad antibacterial potential, and anticancer activity. Chemical physics analysis of model systems made of phospholipid bilayers, RTIL ions, and water confirm and partially explain this evidence, quantifying the mild destabilizing effect of RTILs on the structural, dynamic, and thermodynamic properties of lipids in biomembranes. Our Feature Article presents a brief introduction to these systems and to their roles in biophysics and biotechnology, summarizing recent experimental and computational results on their properties. More importantly, it highlights the many developments in pharmacology, biomedicine, and bionanotechnology expected from the current research effort on this topic. To anticipate future developments, we speculate on (i) potential applications of (magnetic) RTILs to affect and control the rheology of cells and biological tissues, of great relevance for diagnostics and (ii) the use of RTILs to improve the durability, reliability, and output of biomimetic photovoltaic devices.
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Affiliation(s)
- Antonio Benedetto
- Laboratory for Neutron Scattering , Paul Scherrer Institute , Villigen 5232 , Switzerland
- Conway Institute of Biomolecular and Biomedical Research , University College Dublin , Dublin 4 , Ireland
| | - Pietro Ballone
- Italian Institute of Technology , Via Morego 30 , 16163 Genova , Italy
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16
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Hinman SS, McKeating KS, Cheng Q. Surface Plasmon Resonance: Material and Interface Design for Universal Accessibility. Anal Chem 2018; 90:19-39. [PMID: 29053253 PMCID: PMC6041476 DOI: 10.1021/acs.analchem.7b04251] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Samuel S. Hinman
- Environmental Toxicology, University of California–Riverside, Riverside, California 92521, United States
| | - Kristy S. McKeating
- Department of Chemistry, University of California–Riverside, Riverside, California 92521, United States
| | - Quan Cheng
- Environmental Toxicology, University of California–Riverside, Riverside, California 92521, United States
- Department of Chemistry, University of California–Riverside, Riverside, California 92521, United States
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