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de Olazarra AS, Wang SX. Advances in point-of-care genetic testing for personalized medicine applications. BIOMICROFLUIDICS 2023; 17:031501. [PMID: 37159750 PMCID: PMC10163839 DOI: 10.1063/5.0143311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 04/12/2023] [Indexed: 05/11/2023]
Abstract
Breakthroughs within the fields of genomics and bioinformatics have enabled the identification of numerous genetic biomarkers that reflect an individual's disease susceptibility, disease progression, and therapy responsiveness. The personalized medicine paradigm capitalizes on these breakthroughs by utilizing an individual's genetic profile to guide treatment selection, dosing, and preventative care. However, integration of personalized medicine into routine clinical practice has been limited-in part-by a dearth of widely deployable, timely, and cost-effective genetic analysis tools. Fortunately, the last several decades have been characterized by tremendous progress with respect to the development of molecular point-of-care tests (POCTs). Advances in microfluidic technologies, accompanied by improvements and innovations in amplification methods, have opened new doors to health monitoring at the point-of-care. While many of these technologies were developed with rapid infectious disease diagnostics in mind, they are well-suited for deployment as genetic testing platforms for personalized medicine applications. In the coming years, we expect that these innovations in molecular POCT technology will play a critical role in enabling widespread adoption of personalized medicine methods. In this work, we review the current and emerging generations of point-of-care molecular testing platforms and assess their applicability toward accelerating the personalized medicine paradigm.
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Affiliation(s)
- A. S. de Olazarra
- Department of Electrical Engineering, Stanford University, Stanford, California 94305, USA
| | - S. X. Wang
- Author to whom correspondence should be addressed:
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2
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Li L, Liu X, Su B, Zhang H, Li R, Liu Z, Chen Q, Huang T, Cao H. An innovative electrochemical immunosensor based on nanobody heptamer and AuNPs@ZIF-8 nanocomposites as support for the detection of alpha fetoprotein in serum. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107463] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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3
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Rando HM, Brueffer C, Lordan R, Dattoli AA, Manheim D, Meyer JG, Mundo AI, Perrin D, Mai D, Wellhausen N, Gitter A, Greene CS. Molecular and Serologic Diagnostic Technologies for SARS-CoV-2. ARXIV 2022:arXiv:2204.12598v2. [PMID: 35547240 PMCID: PMC9094103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Revised: 04/28/2022] [Indexed: 01/09/2023]
Abstract
The COVID-19 pandemic has presented many challenges that have spurred biotechnological research to address specific problems. Diagnostics is one area where biotechnology has been critical. Diagnostic tests play a vital role in managing a viral threat by facilitating the detection of infected and/or recovered individuals. From the perspective of what information is provided, these tests fall into two major categories, molecular and serological. Molecular diagnostic techniques assay whether a virus is present in a biological sample, thus making it possible to identify individuals who are currently infected. Additionally, when the immune system is exposed to a virus, it responds by producing antibodies specific to the virus. Serological tests make it possible to identify individuals who have mounted an immune response to a virus of interest and therefore facilitate the identification of individuals who have previously encountered the virus. These two categories of tests provide different perspectives valuable to understanding the spread of SARS-CoV-2. Within these categories, different biotechnological approaches offer specific advantages and disadvantages. Here we review the categories of tests developed for the detection of the SARS-CoV-2 virus or antibodies against SARS-CoV-2 and discuss the role of diagnostics in the COVID-19 pandemic.
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Affiliation(s)
- Halie M Rando
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America; Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, Colorado, United States of America; Center for Health AI, University of Colorado School of Medicine, Aurora, Colorado, United States of America · Funded by the Gordon and Betty Moore Foundation (GBMF 4552); the National Human Genome Research Institute (R01 HG010067)
| | | | - Ronan Lordan
- Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104-5158, USA; Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania; Philadelphia, PA 19104, USA
| | - Anna Ada Dattoli
- Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA; Department of Systems Pharmacology & Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - David Manheim
- 1DaySooner, Delaware, United States of America; Risk and Health Communication Research Center, School of Public Health, University of Haifa, Haifa, Israel; Technion, Israel Institute of Technology, Haifa, Israel · Funded by Center for Effective Altruism, Long Term Future Fund
| | - Jesse G Meyer
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America · Funded by National Institute of General Medical Sciences (R35 GM142502)
| | - Ariel I Mundo
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, Arkansas, USA
| | - Dimitri Perrin
- School of Computer Science, Queensland University of Technology, Brisbane, Australia; Centre for Data Science, Queensland University of Technology, Brisbane, Australia
| | - David Mai
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA; Center for Cellular Immunotherapies, Perelman School of Medicine, and Parker Institute for Cancer Immunotherapy at University of Pennsylvania, Philadelphia, PA, USA
| | - Nils Wellhausen
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Anthony Gitter
- Department of Biostatistics and Medical Informatics, University of Wisconsin-Madison, Madison, Wisconsin, United States of America; Morgridge Institute for Research, Madison, Wisconsin, United States of America · Funded by John W. and Jeanne M. Rowe Center for Research in Virology
| | - Casey S Greene
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America; Childhood Cancer Data Lab, Alex's Lemonade Stand Foundation, Philadelphia, Pennsylvania, United States of America; Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, Colorado, United States of America; Center for Health AI, University of Colorado School of Medicine, Aurora, Colorado, United States of America · Funded by the Gordon and Betty Moore Foundation (GBMF 4552); the National Human Genome Research Institute (R01 HG010067)
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Kim SY, Lee JP, Shin WR, Oh IH, Ahn JY, Kim YH. Cardiac biomarkers and detection methods for myocardial infarction. Mol Cell Toxicol 2022; 18:443-455. [PMID: 36105117 PMCID: PMC9463516 DOI: 10.1007/s13273-022-00287-1] [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] [Accepted: 08/28/2022] [Indexed: 12/14/2022]
Abstract
Background A significant heart attack known as a myocardial infarction (MI) occurs when the blood supply to the heart is suddenly interrupted, harming the heart muscles due to a lack of oxygen. The incidence of myocardial infarction is increasing worldwide. A relationship between COVID-19 and myocardial infarction due to the recent COVID-19 pandemic has also been revealed. Objective We propose a biomarker and a method that can be used for the diagnosis of myocardial infarction, and an aptamer-based approach. Results For the diagnosis of myocardial infarction, an algorithm-based diagnosis method was developed using electrocardiogram data. A diagnosis method through biomarker detection was then developed. Conclusion Myocardial infarction is a disease that is difficult to diagnose based on the aspect of a single factor. For this reason, it is necessary to use a combination of various methods to diagnose myocardial infarction quickly and accurately. In addition, new materials such as aptamers must be grafted and integrated into new ways. Purpose of Review The incidence of myocardial infarction is increasing worldwide, and some studies are being conducted on the association between COVID-19 and myocardial infarction. The key to properly treating myocardial infarction is early detection, thus we aim to do this by offering both tools and techniques as well as the most recent diagnostic techniques. Recent Findings Myocardial infarction is diagnosed using an electrocardiogram and echocardiogram, which utilize cardiac signals. It is required to identify biomarkers of myocardial infarction and use biomarker-based ELISA, SPR, gold nanoparticle, and aptamer technologies in order to correctly diagnose myocardial infarction.
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Affiliation(s)
- Sang Young Kim
- Department of Food Science and Biotechnology, Shin Ansan University, 135 Sinansandaehak-Ro, Danwon-Gu, Ansan, 15435 Republic of Korea
| | - Jin-Pyo Lee
- School of Biological Sciences, Chungbuk National University, 1 Chungdae-Ro, Seowon-Gu, Cheongju 28644 South Korea
| | - Woo-Ri Shin
- School of Biological Sciences, Chungbuk National University, 1 Chungdae-Ro, Seowon-Gu, Cheongju 28644 South Korea
| | - In-Hwan Oh
- School of Biological Sciences, Chungbuk National University, 1 Chungdae-Ro, Seowon-Gu, Cheongju 28644 South Korea
| | - Ji-Young Ahn
- School of Biological Sciences, Chungbuk National University, 1 Chungdae-Ro, Seowon-Gu, Cheongju 28644 South Korea
| | - Yang-Hoon Kim
- School of Biological Sciences, Chungbuk National University, 1 Chungdae-Ro, Seowon-Gu, Cheongju 28644 South Korea
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Nanobody multimerization strategy to enhance the sensitivity of competitive ELISA for detection of ochratoxin A in coffee samples. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108167] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Song L, Xie C, Liu X, Huo Z, Xie Y, Gao J, Zhou S, Shen J, Tang X, Liu X. Development of a Sandwich Chemiluminescence Immunoassay for the Detection of Intact Procollagen Type I N Propeptide with Magnetic Nanosphere Carrier Technology. J Biomed Nanotechnol 2021; 17:1690-1698. [PMID: 34544545 DOI: 10.1166/jbn.2021.3132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The metabolic product of type I collagen synthesis, intact procollagen type I N propeptide (intact PINP), is a potential marker of bone formation and osteoporosis, which is not affected by kidney function. We sought to establish a chemiluminescent immunoassay method for the detection of serum intact PINP with previously prepared paired monoclonal antibodies and to evaluate the diagnostic value of the assay in osteoporosis. Using the capture molecule and monoclonal antibody as detection molecule, a diagnostic reagent was developed to detect intact PINP in serum with magnetic nanosphere carriers by the chemiluminescence method, and its analytical performance in the laboratory was evaluated. Serum intact PINP was measured in 142 healthy people and 115 osteoporosis patients. Results were matched with results of a similar test kit, Roche total PINP Elecsys Chemiluminescent Immunoassay Assay. Compared with the performance of the Roche PINP assay product, our method had higher sensitivity (0.02 ng/mL), wider linear range (0.02-1500 ng/mL), and anti-interference. Serum intact PINP values in osteoporosis patients were significantly higher than in healthy subjects (p < 0.001). Our method had good consistency compared with the Roche PINP assay (r = 0.9794). This chemiluminescence method for detecting serum intact PINP (CLIA-intact PINP) with magnetic nanosphere carrier technology meets the requirements of a clinical testing reagent and is expected to have clinical application after further evaluation and can compete with expensive imported kits on the market.
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Affiliation(s)
- Li Song
- Clinical Laboratory Medicine, Anhui University of Science & Technology, Huainan, 232001, China
| | - Chunmei Xie
- Department of Blood Transfusion, Guangzhou 8th People's Hospital, Guangzhou Medical University, Guangzhou, 510440, People's Republic of China
| | - Xueke Liu
- Department of Clinical Laboratory Medicine, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, 322000, China
| | - Zhen Huo
- Clinical Laboratory Medicine, Anhui University of Science & Technology, Huainan, 232001, China
| | - Yinhai Xie
- Clinical Laboratory Medicine, Anhui University of Science & Technology, Huainan, 232001, China
| | - Jiafeng Gao
- Clinical Laboratory Medicine, Anhui University of Science & Technology, Huainan, 232001, China
| | - Shuping Zhou
- Clinical Laboratory Medicine, Anhui University of Science & Technology, Huainan, 232001, China
| | - Jing Shen
- Clinical Laboratory Medicine, Anhui University of Science & Technology, Huainan, 232001, China
| | - Xiaolong Tang
- Clinical Laboratory Medicine, Anhui University of Science & Technology, Huainan, 232001, China
| | - Xinkuang Liu
- Clinical Laboratory Medicine, Anhui University of Science & Technology, Huainan, 232001, China
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Liu F, Zou J, Luo X, Liu Y, Huang C, He X, Wang Y. A point-of-care chemiluminescence immunoassay for pepsinogen I enables large-scale community health screening. Anal Bioanal Chem 2021; 413:4493-4500. [PMID: 34041573 DOI: 10.1007/s00216-021-03412-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 05/10/2021] [Accepted: 05/17/2021] [Indexed: 11/28/2022]
Abstract
Pepsinogen I (PGI) can reflect the morphology and function of the gastric mucosa. Accordingly, the large-scale community health screening of PGI can dramatically increase the early diagnosis rate of gastric cancer. However, PGI testing can only be carried out in comprehensive hospitals and health examination centers. To ameliorate this issue, a point-of-care chemiluminescent immunoassay for PGI was developed in a fully automated miniaturized instrument. This instrument was especially developed for health check-ups in the grassroots communities; its volume of which is only 0.18 m3. Critically, the entire detection process for a single sample only requires 20 min, and the samples can be loaded continuously, making the method suitable for high-throughput analysis. The assay displayed an excellent detection limit of 0.048 ng/mL with a broad detection range of 0-200 ng/mL. Furthermore, this assay exhibited high sensitivity and specificity, had low intra- and inter-assay coefficients of variation (<10%), and was not affected after storage at 37 °C for 7 days. The assay was used to detect PGI in 95 clinical serum samples, and the results were highly correlated with those that were clinically tested (correlation coefficient, R2 = 0.998). Hence, the method established in this work has great application value and can be broadly applied for the large-scale screening of gastric cancer in resource-limited areas.
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Affiliation(s)
- Fangfang Liu
- College of Food Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Jingjing Zou
- College of Food Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Xiangxiang Luo
- College of Food Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Yu Liu
- College of Food Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Chunrong Huang
- National & Local United Engineering Lab of Rapid Diagnostic Test, Guangzhou Wondfo Biotech Co., Ltd., Guangzhou, 5l0663, China
| | - Xiaowei He
- College of Food Science and Engineering, South China University of Technology, Guangzhou, 510640, China.
| | - Yu Wang
- Department of Laboratory Medicine, Guangzhou First People's Hospital, the Second Affiliated Hospital of South China University of Technology, Guangzhou, 510180, China.
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Gao J, Cai R, Zhou N. Development of a sensitive and stable chemiluminescent immunoassay for detection of birch pollen allergic specific IgE based on recombinant Bet v1 protein. J Immunol Methods 2021; 493:113040. [PMID: 33741388 DOI: 10.1016/j.jim.2021.113040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 03/04/2021] [Accepted: 03/10/2021] [Indexed: 10/21/2022]
Abstract
Background Quantitative detection of allergens is of great significance for clarifying the cause, treatment, and prevention of allergy disease. Birch pollen is one of the most common inhalational allergens and Bet v1 is the major component allergen of birch allergen. This study aims to develop a stable and sensitive chemiluminescence immunoassay (CLIA) for the detection of birch pollen allergic specific IgE (sIgE) based on recombinant Bet v1 (rBet v1) protein. Methods rBet v1 protein was expressed in Escherichia coli and purified. Then rBet v1 was applied to detect sIgE in human serum. The performance of the established CLIA was evaluated and compared with Phadia rBet v1 fluorescence enzyme immunoassay (FEIA) system. Results The developed CLIA for sIgE to rBet v1 detection shows excellent performance. The assay showed a linear range from 0.1 to 100 IU/mL, with a low detection limit of 0.06 IU/mL. A total of 164 samples were evaluated by CLIA and compared with the results of FEIA. The positive, negative, and total coincidence rate was 90.6% (87/96), 91.2% (62/68), and 90.9% (149/164), respectively. The r-value of Spearman's rank correlation analysis was 0.935 (P < 0.001). The use of high levels of bilirubin (50 mg/dL), hemoglobin (400 mg/dL) and lipid (2000 mg/dL) didn't interfere with the results. Conclusions The proposed CLIA exhibits excellent performance for the detection of rBet v1 specific IgE. It can be a reliable tool for the early diagnosis of hypersensitivity.
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Affiliation(s)
- Jinyan Gao
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Rongfeng Cai
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Nandi Zhou
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China.
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Mattioli IA, Hassan A, Oliveira ON, Crespilho FN. On the Challenges for the Diagnosis of SARS-CoV-2 Based on a Review of Current Methodologies. ACS Sens 2020; 5:3655-3677. [PMID: 33267587 PMCID: PMC7724986 DOI: 10.1021/acssensors.0c01382] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 11/17/2020] [Indexed: 12/13/2022]
Abstract
Diagnosis of COVID-19 has been challenging owing to the need for mass testing and for combining distinct types of detection to cover the different stages of the infection. In this review, we have surveyed the most used methodologies for diagnosis of COVID-19, which can be basically categorized into genetic-material detection and immunoassays. Detection of genetic material with real-time polymerase chain reaction (RT-PCR) and similar techniques has been achieved with high accuracy, but these methods are expensive and require time-consuming protocols which are not widely available, especially in less developed countries. Immunoassays for detecting a few antibodies, on the other hand, have been used for rapid, less expensive tests, but their accuracy in diagnosing infected individuals has been limited. We have therefore discussed the strengths and limitations of all of these methodologies, particularly in light of the required combination of tests owing to the long incubation periods. We identified the bottlenecks that prevented mass testing in many countries, and proposed strategies for further action, which are mostly associated with materials science and chemistry. Of special relevance are the methodologies which can be integrated into point-of-care (POC) devices and the use of artificial intelligence that do not require products from a well-developed biotech industry.
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Affiliation(s)
- Isabela A. Mattioli
- São Carlos Institute of
Chemistry, University of São Paulo,
São Carlos 13560-970, São Paulo,
Brazil
| | - Ayaz Hassan
- São Carlos Institute of
Chemistry, University of São Paulo,
São Carlos 13560-970, São Paulo,
Brazil
| | - Osvaldo N. Oliveira
- São Carlos Institute of
Physics, University of São Paulo,
São Carlos 13560-590, São Paulo,
Brazil
| | - Frank N. Crespilho
- São Carlos Institute of
Chemistry, University of São Paulo,
São Carlos 13560-970, São Paulo,
Brazil
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Martínez-Feito A, Bravo-Gallego LY, Hernández-Breijo B, Diez J, García-Ramirez L, Jaquotot M, Plasencia-Rodríguez C, Nozal P, Mezcua A, Martín-Arranz MD, Pascual-Salcedo D. Infliximab concentrations in two non-switching cohorts of patients with inflammatory bowel disease: originator vs. biosimilar. Sci Rep 2020; 10:17099. [PMID: 33051546 PMCID: PMC7555902 DOI: 10.1038/s41598-020-74235-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 09/04/2020] [Indexed: 11/30/2022] Open
Abstract
Biosimilars are replacing originator compounds due to their similar effectiveness, safety and pharmacokinetics. Our objective was to compare the differences in pharmacokinetics and clinical outcomes between the originator infliximab (Ifx) and the biosimilar CT-P13 in a patient cohort with inflammatory bowel disease (IBD). Our cohort study included 86 patients from a historical and a prospective cohort from the start of infliximab treatment to 22 weeks later. Serum infliximab, antidrug antibody levels and other serum biomarkers were measured at weeks 0, 2, 6, 14 and 22. Remission outcomes were evaluated at weeks 14 and 22. Drug levels were measured prospectively and analysed using MANOVA. Of the 86 patients, 44 (51%) and 42 (49%) were administered the originator and CT-P13, respectively. Originator trough levels were higher than the biosimilar trough levels (35 vs. 21, 20.1 vs. 11, 6.6 vs. 2.9 and 4.3 vs. 1.7 μg/mL at weeks 2, 6, 14 and 22, respectively). A post-hoc analysis demonstrated changes in mean serum drug levels over time (p < 0.001) and according to the drug employed (p = 0.001). At week 22, 13 (81%) patients administered the originator achieved clinical remission compared with 5 (19%) patients with the biosimilar (p = 0.02). None of the patients administered the originator withdrew from the treatment compared with 7 for the biosimilar. During the study, there were significant differences in serum infliximab levels between the originator and the CT-P13 in the patients with IBD. The clinical outcomes were influenced by the type of compound administered.
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Affiliation(s)
- Ana Martínez-Feito
- Immuno-Rheumatology Group, La Paz University Hospital Institute for Health Research (IdiPAZ), Madrid, Spain. .,Immunology Unit, La Paz University Hospital, Madrid, Spain.
| | - Luz Yadira Bravo-Gallego
- Immunology Unit, La Paz University Hospital, Madrid, Spain.,Lymphocyte Pathophysiology in Immunodeficiencies Group, La Paz Institute for Health Research (IdiPAZ) and Center for Biomedical Network Research on Rare Diseases (CIBERER U767), Madrid, Spain
| | - Borja Hernández-Breijo
- Immuno-Rheumatology Group, La Paz University Hospital Institute for Health Research (IdiPAZ), Madrid, Spain
| | - Jesús Diez
- Biostatistics Section, La Paz University Hospital, Madrid, Spain
| | - Laura García-Ramirez
- Unit of Inflammatory Bowel Disease, Gastroenterology Department. Innate Immunity Group, La Paz University Hospital Institute for Health Research (IdiPAZ), Madrid, Spain
| | - Marta Jaquotot
- Unit of Inflammatory Bowel Disease, Gastroenterology Department. Innate Immunity Group, La Paz University Hospital Institute for Health Research (IdiPAZ), Madrid, Spain
| | | | - Pilar Nozal
- Immunology Unit, La Paz University Hospital, Madrid, Spain
| | - Araceli Mezcua
- Immunology Unit, La Paz University Hospital, Madrid, Spain
| | - María Dolores Martín-Arranz
- Unit of Inflammatory Bowel Disease, Gastroenterology Department. Innate Immunity Group, La Paz University Hospital Institute for Health Research (IdiPAZ), Madrid, Spain
| | - Dora Pascual-Salcedo
- Immuno-Rheumatology Group, La Paz University Hospital Institute for Health Research (IdiPAZ), Madrid, Spain
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Ma Z, Lv J, Zhang Z, Zhao Y, Pan L, Zhang Y. A chemiluminescence immunoassay for rapid detection of classical swine fever virus E2 antibodies in pig serum samples. Transbound Emerg Dis 2020; 67:1797-1803. [PMID: 32239638 DOI: 10.1111/tbed.13557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 03/03/2020] [Accepted: 03/21/2020] [Indexed: 11/30/2022]
Abstract
The high performance of chemiluminescence immunoassays (CLIAs) in diagnosis has been gradually recognized in recent years, but their application in the diagnosis of classical swine fever (CSF) has not been reported. Here, a recombinant E2 (rE2) protein and a peroxidase-conjugated monoclonal antibody (MAb G5) were used to develop a competition-based chemiluminescence immunoassay (cCLIA) for rapid and accurate detection of E2-specific antibodies in pig serum. To evaluate the feasibility of cCLIA in the diagnosis of CSF, we developed a competition-based enzyme-linked immunosorbent assay (cELISA) as a control. Under the optimum test conditions, cCLIA showed a higher signal-to-noise ratio than that of the control cELISA. The best signal-to-noise ratios of cCLIA and cELISA were 70 and 17, respectively. Then, the diagnostic performance of the two assays was compared by examining a panel of pig serum samples (n = 285) with a confirmed status, and cCLIA showed higher diagnostic sensitivity (Dn) and diagnostic specificity (Dp) values than those of cELISA. The Dn and Dp of cCLIA were 97.49% and 96.08%, respectively, and those of cELISA were 93.97% and 94.12%, respectively. Furthermore, cCLIA can provide results within 20 min, whereas the control cELISA requires at least 1 hr. According to these findings, the newly developed cCLIA has potential application in the diagnosis of CSF and offers an alternative approach for efficient and rapid detection of E2-specific antibodies.
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Affiliation(s)
- Zhongyuan Ma
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, China
| | - Jianliang Lv
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, China
| | - Zhongwang Zhang
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, China
| | - Ye Zhao
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, China
| | - Li Pan
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou, Jiangsu, China
| | - Yongguang Zhang
- State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou, Jiangsu, China
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Detection of C-Reactive Protein Using Histag-HRP Functionalized Nanoconjugate with Signal Amplified Immunoassay. NANOMATERIALS 2020; 10:nano10061240. [PMID: 32604729 PMCID: PMC7353076 DOI: 10.3390/nano10061240] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 06/22/2020] [Accepted: 06/23/2020] [Indexed: 12/16/2022]
Abstract
Ultrasensitive detection of biomarkers is highly significant for disease prognosis and public health treatment. Despite wide acceptance in routine laboratory tests, the conventional enzyme-linked immunosorbent assay (ELISA) has been of limited use for early biomarker detection due to insufficient sensitivity and multiple long incubation time. Several nanoprobes have been introduced to circumvent the limitation, however, rapid, simple, and chemical-free nanoprobe synthesis and sensitive detection methods, particularly for ELISA, are still lacking. In this study, we have synthesized a gold nanoprobe, conjugated with multiple 6X-histidine (6X-his) peptide and nickel-horseradish peroxidase (Ni2+-HRP), for enhancing the colorimetric signal in ELISA. The developed nanoprobe has been tested for the detection of immunologically significant C-reactive protein (CRP) in ELISA format. The performance of designed probe is validated by testing standard and serum samples, and the detection limit of 32.0 pg/mL with R2 = 0.98 is confirmed. Furthermore, a comparative analysis of the developed nanoprobe was performed with ELISA developed on conventional guidelines, the proposed immunoassay showed an increase of 12-fold sensitivity for detecting CRP due to the high loading of 6Xhis peptide and binding of multiple Ni2+-HRP on a gold nanoparticle. Additionally, the proposed assay provides a simple, fast, and cost-efficient (not requiring multiple antibodies) detection of CRP with easy nanoprobe synthesis. Moreover, the developed Histag-HRP functionalized nanoconjugate immunoassay is flexible and can be applied to other biomarkers efficiently by using disease specific antibody.
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Kuchur OA, Tsymbal SA, Shestovskaya MV, Serov NS, Dukhinova MS, Shtil AA. Metal-derived nanoparticles in tumor theranostics: Potential and limitations. J Inorg Biochem 2020; 209:111117. [PMID: 32473483 DOI: 10.1016/j.jinorgbio.2020.111117] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 05/14/2020] [Accepted: 05/14/2020] [Indexed: 12/19/2022]
Abstract
Initially, metal derived nanoparticles have been used exclusively as contrasting agents in magnetic resonance imaging. Today, green routes of chemical synthesis together with numerous modifications of the core and surface gave rise to a plethora of biomedical applications of metal derived nanoparticles including tumor imaging, diagnostics, and therapy. These materials are an emerging class of tools for tumor theranostics. Nevertheless, the spectrum of clinically approved metal nanoparticles remains narrow, as the safety, specificity and efficiency still have to be improved. In this review we summarize the major directions for development and biomedical applications of metal based nanoparticles and analyze their effects on tumor cells and microenvironment. We discuss the advantages and possible limitations of metal nanoparticle-based tumor theranostics, as well as the potential strategies to improve the in vivo performance of these unique materials.
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Affiliation(s)
- O A Kuchur
- International Institute 'Solution Chemistry of Advanced Materials and Technologies', ITMO University, 197101 Saint-Petersburg, Russia
| | - S A Tsymbal
- International Institute 'Solution Chemistry of Advanced Materials and Technologies', ITMO University, 197101 Saint-Petersburg, Russia
| | - M V Shestovskaya
- International Institute 'Solution Chemistry of Advanced Materials and Technologies', ITMO University, 197101 Saint-Petersburg, Russia
| | - N S Serov
- International Institute 'Solution Chemistry of Advanced Materials and Technologies', ITMO University, 197101 Saint-Petersburg, Russia
| | - M S Dukhinova
- International Institute 'Solution Chemistry of Advanced Materials and Technologies', ITMO University, 197101 Saint-Petersburg, Russia.
| | - A A Shtil
- International Institute 'Solution Chemistry of Advanced Materials and Technologies', ITMO University, 197101 Saint-Petersburg, Russia; Institute of Gene Biology, Russian Academy of Science, 119334 Moscow, Russia
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Emerging strategies to enhance the sensitivity of competitive ELISA for detection of chemical contaminants in food samples. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115861] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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