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Majdinasab M, Lamy de la Chapelle M, Marty JL. Recent Progresses in Optical Biosensors for Interleukin 6 Detection. BIOSENSORS 2023; 13:898. [PMID: 37754132 PMCID: PMC10526799 DOI: 10.3390/bios13090898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/14/2023] [Accepted: 09/18/2023] [Indexed: 09/28/2023]
Abstract
Interleukin 6 (IL-6) is pleiotropic cytokine with pathological pro-inflammatory effects in various acute, chronic and infectious diseases. It is involved in a variety of biological processes including immune regulation, hematopoiesis, tissue repair, inflammation, oncogenesis, metabolic control, and sleep. Due to its important role as a biomarker of many types of diseases, its detection in small amounts and with high selectivity is of particular importance in medical and biological fields. Laboratory methods including enzyme-linked immunoassays (ELISAs) and chemiluminescent immunoassays (CLIAs) are the most common conventional methods for IL-6 detection. However, these techniques suffer from the complexity of the method, the expensiveness, and the time-consuming process of obtaining the results. In recent years, too many attempts have been conducted to provide simple, rapid, economical, and user-friendly analytical approaches to monitor IL-6. In this regard, biosensors are considered desirable tools for IL-6 detection because of their special features such as high sensitivity, rapid detection time, ease of use, and ease of miniaturization. In this review, current progresses in different types of optical biosensors as the most favorable types of biosensors for the detection of IL-6 are discussed, evaluated, and compared.
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Affiliation(s)
- Marjan Majdinasab
- Department of Food Science & Technology, School of Agriculture, Shiraz University, Shiraz 71441-65186, Iran;
| | - Marc Lamy de la Chapelle
- Institut des Molécules et Matériaux du Mans (IMMM—UMR 6283 CNRS), Le Mans Université, Avenue Olivier Messiaen, CEDEX 9, 72085 Le Mans, France;
| | - Jean Louis Marty
- BAE: Biocapteurs-Analyses-Environnement, University of Perpignan Via Domitia, 52 Avenue Paul Alduy, CEDEX 9, 66860 Perpignan, France
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2
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Yang Y, Griffin K, Li X, Sharp E, Young L, Garcia L, Griswold J, Pappas D. Combined CD25, CD64, and CD69 Biomarker in 3D-Printed Multizone Millifluidic Device for Sepsis Detection in Clinical Samples. Anal Chem 2023; 95:12819-12825. [PMID: 37556314 DOI: 10.1021/acs.analchem.3c01797] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
Sepsis is a serious medical condition that arises from a runaway response to an infection, which triggers the immune system to release chemicals into the bloodstream. This immune response can result in widespread inflammation throughout the body, which may cause harm to vital organs and, in more severe cases, lead to organ failure and death. Timely and accurate diagnosis of sepsis remains a challenge in analytical diagnostics. In this work, we have developed and validated a sepsis detection device, utilizing 3D printing technology, which incorporates multiple affinity separation zones. Our device requires minimal operator intervention and utilizes CD64, CD69, and CD25 as the biomarker targets for detecting sepsis in liquid biopsies. We assessed the effectiveness of our 3D-printed multizone cell separation device by testing it on clinical samples obtained from both septic patients (n = 35) and healthy volunteers (n = 8) and validated its performance accordingly. Unlike previous devices using poly(dimethyl siloxane), the 3D-printed device had reduced nonspecific binding for anti-CD25 capture, allowing this biomarker to be assayed for the first time in cell separations. Our results showed a statistically significant difference in cell capture between septic and healthy samples (with p values of 0.0001 for CD64, CD69, and CD25), suggesting that 3D-printed multizone cell capture is a reliable method for distinguishing sepsis. A receiver operator characteristic (ROC) analysis was performed to determine the accuracy of the captured cell counts for each antigen in detecting sepsis. The ROC area under the curve (AUC) values for on-chip detection of CD64+, CD69+, and CD25+ leukocytes were 0.96, 0.92, and 0.88, respectively, indicating our diagnostic test matches clinical outcomes. When combined for sepsis diagnosis, the AUC value for CD64, CD69, and CD25 was 0.99, indicating an improved diagnostic performance due to the use of multiple biomarkers.
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Affiliation(s)
- Yijia Yang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
| | - Kitiara Griffin
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
| | - Xiao Li
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
| | - Elizabeth Sharp
- Clinical Research Institute, Texas Tech Health Sciences Center, Lubbock, Texas 79409, United States
| | - Lane Young
- Clinical Research Institute, Texas Tech Health Sciences Center, Lubbock, Texas 79409, United States
| | - Liza Garcia
- Clinical Research Institute, Texas Tech Health Sciences Center, Lubbock, Texas 79409, United States
| | - John Griswold
- Department of Surgery, Texas Tech Health Sciences Center, Lubbock, Texas 79409, United States
| | - Dimitri Pappas
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
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Chen F, Bao L, Zhang Y, Wang R, Liu J, Hai W, Liu Y. NiCoP/g-C 3N 4 Nanocomposites-Based Electrochemical Immunosensor for Sensitive Detection of Procalcitonin. SENSORS (BASEL, SWITZERLAND) 2023; 23:s23094348. [PMID: 37177552 PMCID: PMC10181558 DOI: 10.3390/s23094348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/22/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023]
Abstract
Herein, an ultra-sensitive and facile electrochemical biosensor for procalcitonin (PCT) detection was developed based on NiCoP/g-C3N4 nanocomposites. Firstly, NiCoP/g-C3N4 nanocomposites were synthesized using hydrothermal methods and then functionalized on the electrode surface by π-π stacking. Afterward, the monoclonal antibody that can specifically capture the PCT was successfully linked onto the surface of the nanocomposites with a 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC) and N-Hydroxysuccinimide (NHS) condensation reaction. Finally, the modified sensor was employed for the electrochemical analysis of PCT using differential Pulse Voltammetry(DPV). Notably, the larger surface area of g-C3N4 and the higher electron transfer capacity of NiCoP/g-C3N4 endow this sensor with a wider detection range (1 ag/mL to 10 ng/mL) and an ultra-low limit of detection (0.6 ag/mL, S/N = 3). In addition, this strategy was also successfully applied to the detection of PCT in the diluted human serum sample, demonstrating that the developed immunosensors have the potential for application in clinical testing.
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Affiliation(s)
- Furong Chen
- Inner Mongolia Key Laboratory of Carbon Nanomaterials, Nano Innovation Institute (NII), College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China
| | - Layue Bao
- Inner Mongolia Key Laboratory of Carbon Nanomaterials, Nano Innovation Institute (NII), College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China
| | - Ying Zhang
- Inner Mongolia Key Laboratory of Carbon Nanomaterials, Nano Innovation Institute (NII), College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China
| | - Ruili Wang
- College of Bioengineering, Beijing Polytechnic, Beijing 100176, China
| | - Jinghai Liu
- Inner Mongolia Key Laboratory of Carbon Nanomaterials, Nano Innovation Institute (NII), College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China
| | - Wenfeng Hai
- Inner Mongolia Key Laboratory of Carbon Nanomaterials, Nano Innovation Institute (NII), College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China
| | - Yushuang Liu
- Inner Mongolia Key Laboratory of Carbon Nanomaterials, Nano Innovation Institute (NII), College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China
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Chin LK, Yang JY, Chousterman B, Jung S, Kim DG, Kim DH, Lee S, Castro CM, Weissleder R, Park SG, Im H. Dual-Enhanced Plasmonic Biosensing for Point-of-Care Sepsis Detection. ACS NANO 2023; 17:3610-3619. [PMID: 36745820 PMCID: PMC10150330 DOI: 10.1021/acsnano.2c10371] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Rapid, sensitive, simultaneous quantification of multiple biomarkers in point-of-care (POC) settings could improve the diagnosis and management of sepsis, a common, potentially life-threatening condition. Compared to high-end commercial analytical systems, POC systems are often limited by low sensitivity, limited multiplexing capability, or low throughput. Here, we report an ultrasensitive, multiplexed plasmonic sensing technology integrating chemifluorescence signal enhancement with plasmon-enhanced fluorescence detection. Using a portable imaging system, the dual chemical and plasmonic amplification enabled rapid analysis of multiple cytokine biomarkers in 1 h with sub-pg/mL sensitivities. Furthermore, we also developed a plasmonic sensing chip based on nanoparticle-spiked gold nanodimple structures fabricated by wafer-scale batch processes. We used the system to detect six cytokines directly from clinical plasma samples (n = 20) and showed 100% accuracy for sepsis detection. The described technology could be employed in rapid, ultrasensitive, multiplexed plasmonic sensing in POC settings for myriad clinical conditions.
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Affiliation(s)
- Lip Ket Chin
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA 02114, USA
- Department of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR
| | - Jun-Yeong Yang
- Department of Nano-Bio Convergence, Korea Institute of Materials Science, 797 Changwondae-ro, Changwon 51508, Republic of Korea
| | - Benjamin Chousterman
- Département d’Anesthésie-Réanimation, Hôpital Lariboisière, AP-HP, 75010, Paris, France
| | - Sunghoon Jung
- Department of Nano-Bio Convergence, Korea Institute of Materials Science, 797 Changwondae-ro, Changwon 51508, Republic of Korea
| | - Do-Geun Kim
- Department of Nano-Bio Convergence, Korea Institute of Materials Science, 797 Changwondae-ro, Changwon 51508, Republic of Korea
| | - Dong-Ho Kim
- Department of Nano-Bio Convergence, Korea Institute of Materials Science, 797 Changwondae-ro, Changwon 51508, Republic of Korea
| | - Seunghun Lee
- Department of Nano-Bio Convergence, Korea Institute of Materials Science, 797 Changwondae-ro, Changwon 51508, Republic of Korea
| | - Cesar M. Castro
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA 02114, USA
- Cancer Center, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA 02114, USA
- Cancer Center, Massachusetts General Hospital, Boston, MA 02114, USA
- Department of Radiology, Massachusetts General Hospital, Boston, MA 02114, USA
- Department of Systems Biology, Harvard Medical School, 200 Longwood Ave, Boston, MA 02115, USA
| | - Sung-Gyu Park
- Department of Nano-Bio Convergence, Korea Institute of Materials Science, 797 Changwondae-ro, Changwon 51508, Republic of Korea
- Corresponding authors: Hyungsoon Im (), Sung-Gyu Park ()
| | - Hyungsoon Im
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA 02114, USA
- Department of Radiology, Massachusetts General Hospital, Boston, MA 02114, USA
- Corresponding authors: Hyungsoon Im (), Sung-Gyu Park ()
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Designing electrochemical microfluidic multiplexed biosensors for on-site applications. Anal Bioanal Chem 2022; 414:6531-6540. [PMID: 35794347 PMCID: PMC9411084 DOI: 10.1007/s00216-022-04210-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/24/2022] [Accepted: 06/28/2022] [Indexed: 11/01/2022]
Abstract
Clinical assessment based on a single biomarker is in many circumstances not sufficient for adequate diagnosis of a disease or for monitoring its therapy. Multiplexing, the measurement of multiple analytes from one sample and/or of the same target from different samples simultaneously, could enhance the accuracy of the diagnosis of diseases and their therapy success. Thus, there is a great and urgent demand for multiplexed biosensors allowing a low-cost, easy-to-use, and rapid on-site testing. In this work, we present a simple, flexible, and highly scalable strategy for implementing microfluidic multiplexed electrochemical biosensors (BiosensorX). Our technology is able to detect 4, 6, or 8 (different) analytes or samples simultaneously using a sequential design concept: multiple immobilization areas, where the assay components are adsorbed, followed by their individual electrochemical cells, where the amperometric signal readout takes place, within a single microfluidic channel. Here, first we compare vertical and horizontal designs of BiosensorX chips using a model assay. Owing to its easier handling and superior fluidic behavior, the vertical format is chosen as the final multiplexed chip design. Consequently, the feasibility of the BiosensorX for multiplexed on-site testing is successfully demonstrated by measuring meropenem antibiotics via an antibody-free β-lactam assay. The multiplexed biosensor platform introduced can be further extended for the simultaneous detection of other anti-infective agents and/or biomarkers (such as renal or inflammation biomarkers) as well as different (invasive and non-invasive) sample types, which would be a major step towards sepsis management and beyond.
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Knowledge gaps in late-onset neonatal sepsis in preterm neonates: a roadmap for future research. Pediatr Res 2022; 91:368-379. [PMID: 34497356 DOI: 10.1038/s41390-021-01721-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 08/13/2021] [Accepted: 08/17/2021] [Indexed: 12/16/2022]
Abstract
Late-onset neonatal sepsis (LONS) remains an important threat to the health of preterm neonates in the neonatal intensive care unit. Strategies to optimize care for preterm neonates with LONS are likely to improve survival and long-term neurocognitive outcomes. However, many important questions on how to improve the prevention, early detection, and therapy for LONS in preterm neonates remain unanswered. This review identifies important knowledge gaps in the management of LONS and describe possible methods and technologies that can be used to resolve these knowledge gaps. The availability of computational medicine and hypothesis-free-omics approaches give way to building bedside feedback tools to guide clinicians in personalized management of LONS. Despite advances in technology, implementation in clinical practice is largely lacking although such tools would help clinicians to optimize many aspects of the management of LONS. We outline which steps are needed to get possible research findings implemented on the neonatal intensive care unit and provide a roadmap for future research initiatives. IMPACT: This review identifies knowledge gaps in prevention, early detection, antibiotic, and additional therapy of late-onset neonatal sepsis in preterm neonates and provides a roadmap for future research efforts. Research opportunities are addressed, which could provide the means to fill knowledge gaps and the steps that need to be made before possible clinical use. Methods to personalize medicine and technologies feasible for bedside clinical use are described.
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Sharma A, Tok AIY, Alagappan P, Liedberg B. Point of care testing of sports biomarkers: Potential applications, recent advances and future outlook. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116327] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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8
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Alhamad MM, Kumar A, Chaaban H, Wickline KM, Ho TT. Platelets and Immature Neutrophils in Preterm Infants with Feeding Intolerance. Am J Perinatol 2021; 38:1150-1157. [PMID: 32446253 PMCID: PMC9536080 DOI: 10.1055/s-0040-1710555] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Feeding intolerance (FI) is a common presentation of necrotizing enterocolitis (NEC) and sepsis. NEC and sepsis are associated with hematological changes, but these changes alone are not reliable biomarkers for early diagnosis. This study examined whether the combination of hematological indices and FI can be used as an early diagnostic tool for NEC or sepsis. STUDY DESIGN This retrospective cohort study included infants born at <1,500 g or <30 weeks who had symptoms of FI. The exclusion criteria were congenital or chromosomal disorders, thrombocytopenia or platelet transfusion before the onset of FI, and history of bowel resection. We compared the hematological indices from infants with pathologic FI (due to NEC or sepsis) to infants with benign FI. RESULTS During the study period, 211 infants developed FI; 185 met the inclusion criteria. Infants with pathologic FI (n = 90, 37 cases with NEC and 53 with sepsis) had lower birth gestational age and weight compared with 95 infants with benign FI (n = 95). Pathologic FI was associated with lower platelet count (median 152 × 103/μL vs. 285 × 103/μL, p < 0.001) and higher immature-to-total neutrophil (I/T) ratio (median 0.23 vs. 0.04, p < 0.001) at the onset of FI. Pathologic FI was also associated with a decrease in baseline platelets compared with an increase in benign FI. For diagnosis of pathologic FI, a decrease ≥10% in platelets from baseline had a sensitivity and specificity of 0.64 and 0.73, respectively, I/T ratio ≥0.1 had a sensitivity and specificity of 0.71 and 0.78, respectively, and the combination of both parameters had a sensitivity and specificity of 0.50 and 0.97, respectively. CONCLUSION FI caused by NEC or sepsis was associated with a decrease in platelets from baseline, and a lower platelet level and higher I/T ratio at the onset of FI. These findings can help clinicians in the management of preterm infants with FI. KEY POINTS · FI is a common presentation of NEC and sepsis in preterm infants.. · FI due to NEC or sepsis is associated with changes in platelets and I/T ratio.. · These changes could be useful as early markers for diagnosis..
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Affiliation(s)
- Moath M.A. Alhamad
- Division of Neonatology, Department of Pediatrics, Sidra Medicine, Doha, Qatar
| | - Ambuj Kumar
- Department of Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Hala Chaaban
- Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Karen M. Wickline
- Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Thao T.B. Ho
- Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, Florida
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Jyoti A, Kumar S, Kumar Srivastava V, Kaushik S, Govind Singh S. Neonatal sepsis at point of care. Clin Chim Acta 2021; 521:45-58. [PMID: 34153274 DOI: 10.1016/j.cca.2021.06.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 06/14/2021] [Accepted: 06/14/2021] [Indexed: 01/03/2023]
Abstract
Sepsis, which includes infection followed by inflammation, is one of the leading causes of death among neonates worldwide. The major attribute of this disease process is dysregulated host response to infection leading to organ dysfunction and potentially death. A comprehensive understanding of the host response as well as the pathogen itself are important factors contributing to outcome. Early diagnosis is paramount, as it leads to accurate assessment and improved clinical management. Accordingly, a number of diagnostic platforms have been introduced to assess the presence of blood stream pathogens in septic neonates. Unfortunately, current point-of-care (POC) methods rely on a single parameter/biomarker and thus lack a comprehensive evaluation. The emerging field of biosensing has, however, resulted in the development of a wide range of analytical devices that may be useful at POC. This review discusses currently available methods to screen the inflammatory process in neonatal sepsis. We describe POC sensor-based methods for single platform multi-analyte detection and highlight the latest advances in this evolving technology. Finally, we critically evaluate the applicability of these POC devices clinically for early diagnosis of sepsis in neonates.
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Affiliation(s)
- Anupam Jyoti
- Amity Institute of Biotechnology, Amity University, Jaipur, Rajasthan 303002, India; Faculty of Applied Sciences and Biotechnology, Shoolini University of Biotechnology and Management Sciences, Bajhol, Solan, Himachal Pradesh, 173229, India.
| | - Sanni Kumar
- Department of Electrical Engineering, Indian Institute of Technology, Hyderabad, Telangana 502285, India.
| | | | - Sanket Kaushik
- Amity Institute of Biotechnology, Amity University, Jaipur, Rajasthan 303002, India.
| | - Shiv Govind Singh
- Department of Electrical Engineering, Indian Institute of Technology, Hyderabad, Telangana 502285, India.
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10
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In Vitro and Vivo Identification, Metabolism and Action of Xenoestrogens: An Overview. Int J Mol Sci 2021; 22:ijms22084013. [PMID: 33924608 PMCID: PMC8070283 DOI: 10.3390/ijms22084013] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 04/08/2021] [Accepted: 04/12/2021] [Indexed: 12/12/2022] Open
Abstract
Xenoestrogens (XEs) are substances that imitate endogenous estrogens to affect the physiologic functions of humans or other animals. As endocrine disruptors, they can be either synthetic or natural chemical compounds derived from diet, pesticides, cosmetics, plastics, plants, industrial byproducts, metals, and medications. By mimicking the chemical structure that is naturally occurring estrogen compounds, synthetic XEs, such as polychlorinated biphenyls (PCBs), bisphenol A (BPA), and diethylstilbestrol (DES), are considered the focus of a group of exogenous chemical. On the other hand, nature phytoestrogens in soybeans can also serve as XEs to exert estrogenic activities. In contrast, some XEs are not similar to estrogens in structure and can affect the physiologic functions in ways other than ER-ERE ligand routes. Studies have confirmed that even the weakly active compounds could interfere with the hormonal balance with persistency or high concentrations of XEs, thus possibly being associated with the occurrence of the reproductive tract or neuroendocrine disorders and congenital malformations. However, XEs are most likely to exert tissue-specific and non-genomic actions when estrogen concentrations are relatively low. Current research has reported that there is not only one factor affected by XEs, but opposite directions are also found on several occasions, or even different components stem from the identical endocrine pathway; thus, it is more challenging and unpredictable of the physical health. This review provides a summary of the identification, detection, metabolism, and action of XEs. However, many details of the underlying mechanisms remain unknown and warrant further investigation.
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Zhou S, Peng Y, Hu J, Duan H, Ma T, Hou L, Li X, Xiong Y. Quantum dot nanobead-based immunochromatographic assay for the quantitative detection of the procalcitonin antigen in serum samples. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105533] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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12
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Weitkamp JH. The Role of Biomarkers in Suspected Neonatal Sepsis. Clin Infect Dis 2020; 73:e391-e393. [DOI: 10.1093/cid/ciaa869] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 06/19/2020] [Indexed: 11/14/2022] Open
Affiliation(s)
- Jörn-Hendrik Weitkamp
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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13
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Cruz D, Fontes CM, Semeniak D, Huang J, Hucknall A, Chilkoti A, Mikkelsen MH. Ultrabright Fluorescence Readout of an Inkjet-Printed Immunoassay Using Plasmonic Nanogap Cavities. NANO LETTERS 2020; 20:4330-4336. [PMID: 32375003 PMCID: PMC7737629 DOI: 10.1021/acs.nanolett.0c01051] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Fluorescence-based microarrays are promising diagnostic tools due to their high throughput, small sample volume requirements, and multiplexing capabilities. However, their low fluorescence output has limited their implementation for in vitro diagnostics applications in point-of-care (POC) settings. Here, by integration of a sandwich immunoassay microarray within a plasmonic nanogap cavity, we demonstrate strongly enhanced fluorescence which is critical for readout by inexpensive POC detectors. The immunoassay consists of inkjet-printed antibodies on a polymer brush which is grown on a gold film. Colloidally synthesized silver nanocubes are placed on top and interact with the underlying gold film creating high local electromagnetic field enhancements. By varying the thickness of the brush from 5 to 20 nm, up to a 151-fold increase in fluorescence and 14-fold improvement in the limit-of-detection is observed for the cardiac biomarker B-type natriuretic peptide (BNP) compared to the unenhanced assay, paving the way for a new generation of POC clinical diagnostics.
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Affiliation(s)
- Daniela
F. Cruz
- Department
of Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Cassio M. Fontes
- Department
of Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Daria Semeniak
- Department
of Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Jiani Huang
- Department
of Physics, Duke University, Durham, North Carolina 27708, United States
| | - Angus Hucknall
- Department
of Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Ashutosh Chilkoti
- Department
of Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States
- E-mail:
| | - Maiken H. Mikkelsen
- Department
of Electrical and Computer Engineering, Duke University, Durham, North Carolina 27708, United States
- E-mail:
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14
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Khan MA, Mujahid M, Loo SCJ, Chamundeswari VN. Nanophotonics based label free detection mechanism for real-time monitoring of interleukin-6. NANOSCALE 2020; 12:9194-9207. [PMID: 32301466 DOI: 10.1039/d0nr01151g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Magneto-photonic crystals/MPCs are promising candidates for devising high-fidelity embedded biosensor systems which offer facile & real time detection of diagnostic proteins. Despite extensive use of magnetic nanomaterials for theranostic applications, the idea of exploiting its photonic response when assembled as a colloid inside a matrix remains unexplored. Herein, we report a novel label free method for quantitative detection of interleukin 6 which is a widely used prognostic marker for multiple pathological conditions. Cobalt ferrite/CoF and magnetite nanoparticles with Ms of 74.8 and 77 emu g-1 were assembled inside a hydrogel matrix with the application of an external magnetic field. Through the use of click chemistry, detecting antibodies were immobilized on their surface. The interaction of interleukin 6 with the antibodies produces a blue-shift in resonant wavelength and the reflectance intensity increases up to 50% and 44% when tested with CoF & magnetite based MPC respectively at a concentration of 50 pg ml-1. The dynamic range of the sensor lies within the prognostic values of IL-6, and the integrated sensing mechanism proposed in this study provides an ideal platform for real-time management of sepsis in patients with higher degree burns.
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Affiliation(s)
- Munezza A Khan
- School of Materials Science & Engineering, Nanyang Technological University, Nanyang Avenue, Nanyanf Avenue, 639798, Singapore.
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15
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Recent Advances in Electrochemical and Optical Biosensors Designed for Detection of Interleukin 6. SENSORS 2020; 20:s20030646. [PMID: 31979357 PMCID: PMC7038342 DOI: 10.3390/s20030646] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/06/2019] [Accepted: 12/18/2019] [Indexed: 12/11/2022]
Abstract
Interleukin 6 (IL-6), being a major component of homeostasis, immunomodulation, and hematopoiesis, manifests multiple pathological conditions when upregulated in response to viral, microbial, carcinogenic, or autoimmune stimuli. High fidelity immunosensors offer real-time monitoring of IL-6 and facilitate early prognosis of life-threatening diseases. Different approaches to augment robustness and enhance overall performance of biosensors have been demonstrated over the past few years. Electrochemical- and fluorescence-based detection methods with integrated electronics have been subjects of intensive research due to their ability to offer a better signal-to-noise ratio, high specificity, ultra-sensitivity, and wide dynamic range. In this review, the pleiotropic role of IL-6 and its clinical significance is discussed in detail, followed by detection schemes devised so far for their quantitative analysis. A critical review on underlying signal amplification strategies and performance of electrochemical and optical biosensors is presented. In conclusion, we discuss the reliability and feasibility of the proposed detection technologies for commercial applications.
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Qureshi A, Niazi JH. Biosensors for detecting viral and bacterial infections using host biomarkers: a review. Analyst 2020; 145:7825-7848. [DOI: 10.1039/d0an00896f] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A schematic diagram showing multiple modes of biosensing platforms for the diagnosis of bacterial or viral infections.
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Affiliation(s)
- Anjum Qureshi
- Sabanci University
- SUNUM Nanotechnology Research and Application Center
- Tuzla 34956
- Turkey
| | - Javed H. Niazi
- Sabanci University
- SUNUM Nanotechnology Research and Application Center
- Tuzla 34956
- Turkey
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Palanisamy S, Dutta S, Attri SV, Sundaram V. Serum C-Reactive Protein Levels in Healthy Neonates in Different Gestational and Postnatal Ages. J Trop Pediatr 2019; 65:481-490. [PMID: 30649556 DOI: 10.1093/tropej/fmy079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
There is paucity of normative data on serum C-reactive protein (CRP) in neonates. In Part I of study, we compared CRP in healthy neonates (from 28°/7 weeks to 416/7 weeks of gestation) between various gestational and postnatal age groups in first week. We planned recruitment of 50 participants each in 'term', 'late preterm' and 'moderate-to-very preterm' groups, equally divided in '24-95 h' and '96-168 h' postnatal age sub-groups. In Part II of study, we assayed CRP weekly in moderate-to-very preterm neonates until day 28 to evaluate its trend. Among 154 subjects, term neonates had higher CRP, with highest values among term infants aged 24-95 h. Barring postnatal age, maternal/perinatal factors did not affect CRP levels. CRP did not change significantly over 28 days in moderate-to-very preterm neonates. In conclusion, serum CRP in healthy neonates is highest among term infants aged 24-95 h and does not vary significantly in the first month of life among moderate-to-very preterm infants.
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Oeschger T, McCloskey D, Kopparthy V, Singh A, Erickson D. Point of care technologies for sepsis diagnosis and treatment. LAB ON A CHIP 2019; 19:728-737. [PMID: 30724931 PMCID: PMC6392004 DOI: 10.1039/c8lc01102h] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Sepsis is a rapidly progressing, life threatening immune response triggered by infection that affects millions worldwide each year. Current clinical diagnosis relies on broad physiological parameters and time consuming lab-based cell culture. If proper treatment is not provided, cases of sepsis can drastically increase in severity over the course of a few hours. Development of new point of care tools for sepsis has the potential to improve diagnostic speed and accuracy, leading to prompt administration of appropriate therapeutics, thereby reducing healthcare costs and improving patient outcomes. In this review we examine developing and commercially available technologies to assess the feasibility of rapid, accurate sepsis diagnosis, with emphasis on point of care.
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Affiliation(s)
- Taylor Oeschger
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853, USA
| | - Duncan McCloskey
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853, USA
| | - Varun Kopparthy
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853, USA
| | - Ankur Singh
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853, USA
| | - David Erickson
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853, USA
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA
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19
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Kumar S, Tripathy S, Jyoti A, Singh SG. Recent advances in biosensors for diagnosis and detection of sepsis: A comprehensive review. Biosens Bioelectron 2018; 124-125:205-215. [PMID: 30388563 DOI: 10.1016/j.bios.2018.10.034] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 09/28/2018] [Accepted: 10/16/2018] [Indexed: 12/12/2022]
Abstract
Sepsis is one of the leading causes of mortality among critically ill patients globally. According to WHO report 2018, it is estimated to affect beyond 30 million people worldwide every year. It causes loss of human lives, which arise from infection and inflammation and long term stay in intensive care unit (ICU) in hospitals. Despite the availability of satisfactory prognostic markers contributing to the diagnosis of sepsis, millions of people die even after admission to the hospitals. Correct and early diagnosis of sepsis leads to rapid administration of appropriate antibiotics can thus potentially avert the attainment to critical stages of sepsis, thereby saving human lives. Conventional diagnostic practices are costly, time consuming and they lack adequate sensitivity and selectivity, provoking an urgent need for developing alternate sepsis diagnosis systems. Nevertheless, biosensors have the much-treasured scope for reasonable sepsis diagnosis. Advancement in nano-biotechnology has provided new paradigm for biosensor platforms with upgraded features. Here, we provide an overview of the recent advances in biosensors with a brief introduction to sepsis, followed by the conventional methods of diagnosis and bio-sensing. To conclude, a proactive role and an outlook on technologically advanced biosensor platforms are discoursed with possible biomedical applications.
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Affiliation(s)
- Sanni Kumar
- Amity Institute of Biotechnology, Amity University, Jaipur, Rajasthan 303002, India.
| | | | - Anupam Jyoti
- Amity Institute of Biotechnology, Amity University, Jaipur, Rajasthan 303002, India.
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20
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Capillary-based chemiluminescence immunoassay for C-reactive protein with portable imaging device. Anal Bioanal Chem 2018; 410:7177-7183. [DOI: 10.1007/s00216-018-1321-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 08/02/2018] [Accepted: 08/13/2018] [Indexed: 10/28/2022]
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Ng S, Strunk T, Jiang P, Muk T, Sangild PT, Currie A. Precision Medicine for Neonatal Sepsis. Front Mol Biosci 2018; 5:70. [PMID: 30094238 PMCID: PMC6070631 DOI: 10.3389/fmolb.2018.00070] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 07/06/2018] [Indexed: 11/24/2022] Open
Abstract
Neonatal sepsis remains a significant cause of morbidity and mortality especially in the preterm infant population. The ability to promptly and accurately diagnose neonatal sepsis based on clinical evaluation and laboratory blood tests remains challenging. Advances in high-throughput molecular technologies have increased investigations into the utility of transcriptomic, proteomic and metabolomic approaches as diagnostic tools for neonatal sepsis. A systems-level understanding of neonatal sepsis, obtained by using omics-based technologies (at the transcriptome, proteome or metabolome level), may lead to new diagnostic tools for neonatal sepsis. In particular, recent omic-based studies have identified distinct transcriptional signatures and metabolic or proteomic biomarkers associated with sepsis. Despite the emerging need for a systems biology approach, future studies have to address the challenges of integrating multi-omic data with laboratory and clinical meta-data in order to translate outcomes into precision medicine for neonatal sepsis. Omics-based analytical approaches may advance diagnostic tools for neonatal sepsis. More research is needed to validate the recent systems biology findings in order to integrate multi-dimensional data (clinical, laboratory and multi-omic) for future translation into precision medicine for neonatal sepsis. This review will discuss the possible applications of omics-based analyses for identification of new biomarkers and diagnostic signatures for neonatal sepsis, focusing on the immune-compromised preterm infant and considerations for clinical translation.
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Affiliation(s)
- Sherrianne Ng
- Medical and Molecular Sciences, School of Veterinary and Life Sciences, Murdoch University, Perth, WA, Australia
| | - Tobias Strunk
- Centre for Neonatal Research and Education, The University of Western Australia, Perth, WA, Australia
| | - Pingping Jiang
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Tik Muk
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Per T Sangild
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Andrew Currie
- Medical and Molecular Sciences, School of Veterinary and Life Sciences, Murdoch University, Perth, WA, Australia.,Centre for Neonatal Research and Education, The University of Western Australia, Perth, WA, Australia
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Zhang Y, Li W, Zhou Y, Johnson A, Venable A, Hassan A, Griswold J, Pappas D. Detection of sepsis in patient blood samples using CD64 expression in a microfluidic cell separation device. Analyst 2018; 143:241-249. [DOI: 10.1039/c7an01471f] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A microfluidic affinity separation device was developed for the detection of sepsis in critical care patients.
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Affiliation(s)
- Ye Zhang
- Department of Chemistry and Biochemistry
- Texas Tech University
- Lubbock
- USA
| | - Wenjie Li
- Department of Chemistry and Biochemistry
- Texas Tech University
- Lubbock
- USA
| | - Yun Zhou
- Department of Chemistry and Biochemistry
- Texas Tech University
- Lubbock
- USA
| | - Amanda Johnson
- Clinical Research Institute
- Texas Tech Health Sciences Center
- Lubbock
- USA
| | - Amanda Venable
- Clinical Research Institute
- Texas Tech Health Sciences Center
- Lubbock
- USA
| | - Ahmed Hassan
- Department of Surgery
- Texas Tech Health Sciences Center
- Lubbock
- USA
| | - John Griswold
- Department of Surgery
- Texas Tech Health Sciences Center
- Lubbock
- USA
| | - Dimitri Pappas
- Department of Chemistry and Biochemistry
- Texas Tech University
- Lubbock
- USA
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23
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Gier K, Preininger C, Sauer U. A Chip for Estrogen Receptor Action: Detection of Biomarkers Released by MCF-7 Cells through Estrogenic and Anti-Estrogenic Effects. SENSORS 2017; 17:s17081760. [PMID: 28763032 PMCID: PMC5579769 DOI: 10.3390/s17081760] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 07/26/2017] [Accepted: 07/28/2017] [Indexed: 12/21/2022]
Abstract
The fluorescence-based multi-analyte chip platform for the analysis of estrogenic and anti-estrogenic substances is a new in vitro tool for the high throughput screening of environmental samples. In contrast to existing tools, the chip investigates the complex action of xenoestrogens in a human cell model by characterizing protein expression. It allows for the quantification of 10 proteins secreted by MCF-7 cells, representing various biological and pathological endpoints of endocrine action and distinguishing between estrogen- and anti-estrogen-dependent secretion of proteins. Distinct protein secretion patterns of the cancer cell line after exposure to known estrogen receptor agonists ß-estradiol, bisphenol A, genistein, and nonylphenol as well as antagonists fulvestrant and tamoxifen demonstrate the potential of the chip. Stimulation of cells with Interleukin-1ß shifts concentrations of low abundant biomarkers towards the working range of the chip. In the non-stimulated cell culture, Matrix Metalloproteinase 9 (MMP-9) and Vascular Endothelial Growth Factor (VEGF) show differences upon treatment with antagonists and agonists of the estrogen receptor. In stimulated MCF-7 cells challenged with receptor agonists secretion of Monocyte Chemoattractant Protein (MCP-1), Interleukin-6 (IL-6), Rantes, and Interleukin-8 (IL-8) significantly decreases. In parallel, the proliferating effect of endocrine-disrupting substances in MCF-7 cells is assessed in a proliferation assay based on resazurin. Using ethanol as a solvent for test substances increases the background of proliferation and secretion experiments, while using dimethyl sulfoxide (DMSO) does not show any adverse effects. The role of the selected biomarkers in different physiological processes such as cell development, reproduction, cancer, and metabolic syndrome makes the chip an excellent tool for either indicating endocrine-disrupting effects in food and environmental samples, or for screening the effect of xenoestrogens on a cellular and molecular level.
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Affiliation(s)
- Konstanze Gier
- Center for Health & Bioresources, AIT Austrian Institute of Technology GmbH, Konrad Lorenz Str 24, 3430 Tulln, Austria.
| | - Claudia Preininger
- Center for Health & Bioresources, AIT Austrian Institute of Technology GmbH, Konrad Lorenz Str 24, 3430 Tulln, Austria.
| | - Ursula Sauer
- Center for Health & Bioresources, AIT Austrian Institute of Technology GmbH, Konrad Lorenz Str 24, 3430 Tulln, Austria.
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24
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Liu C, Cai H, Jia J, Cao T, Xu C, Liu C. Research on highly sensitive optomagnetic sensor for rapid detection of inflammation. Technol Health Care 2017; 25:151-156. [DOI: 10.3233/thc-171317] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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25
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Sauer U. Analytical Protein Microarrays: Advancements Towards Clinical Applications. SENSORS (BASEL, SWITZERLAND) 2017; 17:E256. [PMID: 28146048 PMCID: PMC5335935 DOI: 10.3390/s17020256] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 01/13/2017] [Accepted: 01/23/2017] [Indexed: 01/28/2023]
Abstract
Protein microarrays represent a powerful technology with the potential to serve as tools for the detection of a broad range of analytes in numerous applications such as diagnostics, drug development, food safety, and environmental monitoring. Key features of analytical protein microarrays include high throughput and relatively low costs due to minimal reagent consumption, multiplexing, fast kinetics and hence measurements, and the possibility of functional integration. So far, especially fundamental studies in molecular and cell biology have been conducted using protein microarrays, while the potential for clinical, notably point-of-care applications is not yet fully utilized. The question arises what features have to be implemented and what improvements have to be made in order to fully exploit the technology. In the past we have identified various obstacles that have to be overcome in order to promote protein microarray technology in the diagnostic field. Issues that need significant improvement to make the technology more attractive for the diagnostic market are for instance: too low sensitivity and deficiency in reproducibility, inadequate analysis time, lack of high-quality antibodies and validated reagents, lack of automation and portable instruments, and cost of instruments necessary for chip production and read-out. The scope of the paper at hand is to review approaches to solve these problems.
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Affiliation(s)
- Ursula Sauer
- AIT Austrian Institute of Technology GmbH, Center for Health and Bioresources, 3430 Tulln, Austria.
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26
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Gogalic S, Sauer U, Doppler S, Preininger C. Bladder cancer biomarker array to detect aberrant levels of proteins in urine. Analyst 2015; 140:724-35. [PMID: 25427191 DOI: 10.1039/c4an01432d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Bladder cancer (BCa) is a serious malignancy of the urinary tract worldwide and also prominent for its high rate of recurrence incorporating 50% of all treated patients. To reduce relapse of BCa, lifelong surveillance of patients is essential leading to high treatment costs. The gold standard for the diagnosis of bladder cancer is cystoscopy. It is very sensitive, but due to high costs and its invasive nature this method for routine diagnosis of bladder cancer remains questionable. Because of this and the required surveillance of patients suffering from bladder cancer, urine based markers represent a new potential field of investigation. Literature at the National Center of Biological Information (NCBI) was retrieved for a potential marker panel offering specific protein signatures and used to develop a sensitive and accurate chip assay to monitor BCa. Discovery of possible bladder cancer protein markers is compiled by extensive literature search including 1077 recently (15.01.2008-20.03.2014) published research articles. Validation of this literature is done by selection based on prior defined inclusion and exclusion criteria. A set of six putative biomarkers (VEGF, IL-8, MMP-9, MMP-7, survivin and Cyfra 21.1) was identified and a non-invasive microarray developed to be used for further clinical validation. Investigation regarding optimized urine preparation and assay development, to enhance assay sensitivity for the marker panel, was carried out. This protein based BCa chip enables the fast (within 5 h), simultaneous, easy to operate, cheap, early and non-invasive determination of BCa and is ready for clinical evaluation.
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Affiliation(s)
- S Gogalic
- Health & Environment Department, AIT Austrian Institute of Technology, Bioresources, Konrad Lorenz Straße 24, 3430 Tulln, Austria.
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27
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Ng PC, Ma TPY, Lam HS. The use of laboratory biomarkers for surveillance, diagnosis and prediction of clinical outcomes in neonatal sepsis and necrotising enterocolitis. Arch Dis Child Fetal Neonatal Ed 2015; 100:F448-52. [PMID: 25555389 DOI: 10.1136/archdischild-2014-307656] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 12/18/2014] [Indexed: 12/21/2022]
Abstract
Biomarkers have been used to differentiate systemic neonatal infection and necrotising enterocolitis (NEC) from other non-infective neonatal conditions that share similar clinical features. With increasing understanding in biochemical characteristics of different categories of biomarkers, a specific mediator or a panel of mediators have been used in different aspects of clinical management in neonatal sepsis/NEC. This review focuses on how these biomarkers can be used in real-life clinical settings for daily surveillance, bedside point-of-care testing, early diagnosis and predicting the severity and prognosis of neonatal sepsis/NEC. In addition, with recent development of 'multi-omic' approaches and rapid advancement in knowledge of bioinformatics, more novel biomarkers and unique signatures of mediators would be discovered for diagnosis of specific diseases and organ injuries.
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Affiliation(s)
- Pak Cheung Ng
- Department of Paediatrics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
| | - Terence Ping Yuen Ma
- Department of Paediatrics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
| | - Hugh Simon Lam
- Department of Paediatrics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
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28
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Tighe PJ, Ryder RR, Todd I, Fairclough LC. ELISA in the multiplex era: potentials and pitfalls. Proteomics Clin Appl 2015; 9:406-22. [PMID: 25644123 PMCID: PMC6680274 DOI: 10.1002/prca.201400130] [Citation(s) in RCA: 245] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 12/08/2014] [Accepted: 01/19/2015] [Indexed: 12/20/2022]
Abstract
Multiplex immunoassays confer several advantages over widely adopted singleplex immunoassays including increased efficiency at a reduced expense, greater output per sample volume ratios and higher throughput predicating more resolute, detailed diagnostics and facilitating personalised medicine. Nonetheless, to date, relatively few protein multiplex immunoassays have been validated for in vitro diagnostics in clinical/point-of-care settings. This review article will outline the challenges, which must be ameliorated prior to the widespread integration of multiplex immunoassays in clinical settings: (i) biomarker validation; (ii) standardisation of immunoassay design and quality control (calibration and quantification); (iii) availability, stability, specificity and cross-reactivity of reagents; (iv) assay automation and the use of validated algorithms for transformation of raw data into diagnostic results. A compendium of multiplex immunoassays applicable to in vitro diagnostics and a summary of the diagnostic products currently available commercially are included, along with an analysis of the relative states of development for each format (namely planar slide based, suspension and planar/microtitre plate based) with respect to the aforementioned issues.
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Affiliation(s)
- Patrick J Tighe
- School of Life Sciences, The University of Nottingham, Nottingham, UK
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Abstract
There are unique challenges to antimicrobial stewardship in neonatal intensive care units (NICUs). Diagnosis of infection is difficult as neonates can have nonspecific signs and symptoms. Between and within NICUs, significant variation exists in the treatment duration of suspected sepsis and pneumonia. Development of multidisciplinary teams and meaningful metrics are essential for sustainable antibiotic stewardship. Potential stewardship interventions include optimizing culturing techniques, guiding empiric therapy by NICU-specific antibiograms, using ancillary laboratory tests, and promptly discontinuing therapy once infection is no longer suspected. Use of large neonatal databases can be used to benchmark antibiotic use and conduct comparative effectiveness research.
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Affiliation(s)
- Joseph B Cantey
- Division of Pediatric Infectious Disease, Department of Pediatrics, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390, USA; Division of Neonatal/Perinatal Medicine, Department of Pediatrics, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390, USA.
| | - Sameer J Patel
- Division of Pediatric Infectious Diseases, Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago Northwestern University Feinberg School of Medicine, 225 East Chicago Avenue, Box 20, Chicago, Illinois 60611-2605, USA
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Cheng H, Wu JX, Zheng H, Xu W, Zhou L, Too HP, Choi WK. DNA hybridization on silicon nanowire platform prepared by glancing angle deposition and metal assisted chemical etching process. RSC Adv 2015. [DOI: 10.1039/c5ra07117h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Porous nanowire surface provides high capacity for oligonucleotide hybridization.
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Affiliation(s)
- H. Cheng
- Advanced Materials for Micro- and Nano-Systems
- Singapore-MIT Alliance
- Singapore
| | - J. X. Wu
- NUS Graduate School for Integrative Sciences and Engineering
- National University of Singapore
- Singapore
| | - H. Zheng
- GLOBALFOUNDRIES Singapore Pte. Ltd
- Singapore
| | - W. Xu
- Department of Electrical and Computer Engineering
- National University of Singapore
- Singapore
| | | | - H. P. Too
- Department of Biochemistry
- National University of Singapore
- Singapore
- Bioprocessing Technology Institute
- Singapore
| | - W. K. Choi
- Advanced Materials for Micro- and Nano-Systems
- Singapore-MIT Alliance
- Singapore
- NUS Graduate School for Integrative Sciences and Engineering
- National University of Singapore
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31
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Stawicki SP, Stoltzfus JC, Aggarwal P, Bhoi S, Bhatt S, Kalra OP, Bhalla A, Hoey BA, Galwankar SC, Paladino L, Papadimos TJ. Academic College of Emergency Experts in India's INDO-US Joint Working Group and OPUS12 Foundation Consensus Statement on Creating A Coordinated, Multi-Disciplinary, Patient-Centered, Global Point-of-Care Biomarker Discovery Network. Int J Crit Illn Inj Sci 2014; 4:200-8. [PMID: 25337481 PMCID: PMC4200545 DOI: 10.4103/2229-5151.141398] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Biomarker science brings great promise to clinical medicine. This is especially true in the era of technology miniaturization, rapid dissemination of knowledge, and point-of-care (POC) implementation of novel diagnostics. Despite this tremendous progress, the journey from a candidate biomarker to a scientifically validated biomarker continues to be an arduous one. In addition to substantial financial resources, biomarker research requires considerable expertise and a multidisciplinary approach. Investigational designs must also be taken into account, with the randomized controlled trial remaining the “gold standard”. The authors present a condensed overview of biomarker science and associated investigational methods, followed by specific examples from clinical areas where biomarker development and/or implementation resulted in tangible enhancements in patient care. This manuscript also serves as a call to arms for the establishment of a truly global, well-coordinated infrastructure dedicated to biomarker research and development, with focus on delivery of the latest discoveries directly to the patient via point-of-care technology.
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Affiliation(s)
- Stanislaw P Stawicki
- Department of Research and Innovation, Research Institute, Bethlehem, Pennsylvania ; Department of Research and Innovation, OPUS 12 Foundation Global, Columbus, USA
| | - Jill C Stoltzfus
- Department of Research and Innovation, Research Institute, Bethlehem, Pennsylvania ; Department of Research and Innovation, Research Institute, Bethlehem, Pennsylvania
| | - Praveen Aggarwal
- Department of Emergency Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Sanjeev Bhoi
- Department of Emergency Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Shashi Bhatt
- Department of Anesthesiology, University of Toledo, College of Medicine, Toledo, USA
| | - O P Kalra
- Department of Medicine, University College of Medical Sciences, New Delhi, India
| | - Ashish Bhalla
- Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Brian A Hoey
- Department of Research and Innovation, OPUS 12 Foundation Global, Columbus, USA ; Department of Surgery, St Luke's University Health Network, Bethlehem, Pennsylvania
| | - Sagar C Galwankar
- Department of Research and Innovation, OPUS 12 Foundation Global, Columbus, USA ; Department of Emergency Medicine, University of Florida and Winter Haven Hospital, Florida, USA
| | - Lorenzo Paladino
- Department of Emergency Medicine, SUNY Downstate Medical Center, Long Island College Hospital, New York, USA
| | - Thomas J Papadimos
- Department of Research and Innovation, OPUS 12 Foundation Global, Columbus, USA ; Department of Anesthesiology, The Ohio State University College of Medicine, Columbus, Ohio, USA
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32
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Buchegger P, Preininger C. Four assay designs and on-chip calibration: gadgets for a sepsis protein array. Anal Chem 2014; 86:3174-80. [PMID: 24552299 DOI: 10.1021/ac5000784] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A protein microarray for the early stage diagnosis of sepsis that allows the simultaneous detection of C-reactive protein (CRP) (2-200 μg/mL), procalcitonin (PCT) (0.2-50 ng/mL), and interleukin 6 (IL-6) (2-2000 pg/mL) has been developed. To enable the parallel detection of the differently abundant analytes, the low binding affinity between CRP and phosphocholine is exploited in a "low-sensitive" sandwich assay for CRP. The calibration is integrated directly on the chip resulting in a "one patient-one array" format, to provide a user-friendly and rapid diagnostic tool. Four different assay designs are introduced: (I) the classical assay that works with biotin-streptavidin chemistry, (II) the rapid assay that is performed in a single detection step, and two ultrasensitive assay designs accomplished either by (III) an enzymatic or (IV) an antibody mediated amplification resulting in high density labeling. The assay designs were evaluated by the repetitive measurement of low, medium, and high concentration levels of commercially available certified control sera. The precision was similar across all assay designs (coefficient of variation (CV), CVintra: 8-14%; CVinter: 18-34%), while the sensitivity (limits of detection (LODs)) increased by 1 order of magnitude for the ultrasensitive assays (III, IV) and the accuracy was analyte dependent but best for the classical (I) and the antibody amplified (IV) assays.
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Affiliation(s)
- Patricia Buchegger
- Austrian Institute of Technology , Department of Health & Environment, Bioresources, Konrad Lorenz Straße 24, 3430 Tulln, Austria
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33
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Sener G, Ozgur E, Rad AY, Uzun L, Say R, Denizli A. Rapid real-time detection of procalcitonin using a microcontact imprinted surface plasmon resonance biosensor. Analyst 2013; 138:6422-8. [DOI: 10.1039/c3an00958k] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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