1
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Zhang CL, Cai DH, Chen S, Liu W, Xiong YH, Le XY. Synthesis, DNA interaction and SOD-like activities of copper(II) complexes: investigation of their DNA-interaction mechanism. TRANSIT METAL CHEM 2019. [DOI: 10.1007/s11243-019-00320-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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2
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Wang J, Qiu L, You Y, Ma L, Zhu Z, Yang L, Wang J, Wang X, Liu L, Liu X, Chang Y, Li J, Gao L, Li YQ. A novel in-capillary assay for dynamically monitoring fast binding between antibody and peptides using CE. J Sep Sci 2018; 41:4544-4550. [DOI: 10.1002/jssc.201800946] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 10/16/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Jianhao Wang
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Lin Qiu
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Ying You
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Luping Ma
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Zhilan Zhu
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Li Yang
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Jianpeng Wang
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Xiang Wang
- Radiology Department; The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University; Changzhou Jiangsu P. R. China
| | - Li Liu
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Xiaoqian Liu
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Yufeng Chang
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Jie Li
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Liqian Gao
- School of Pharmaceutical Science (Shenzhen); Sun Yat-Sen University (SYSU); Guangzhou Guangdong P. R. China
| | - Yong-Qiang Li
- State Key Laboratory of Radiation Medicine and Protection; School of Radiation Medicine and Protection; Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions; Soochow University; Suzhou P. R.China
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3
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Liu C, Zhang X, Jing H, Zhang J, Miao Y, Zhai X, Chen S. Using open-tubular capillary electrochromatography with part-coating column for binding constants determination ofβ2-adrenergic receptor with seven drugs. Electrophoresis 2018; 40:289-295. [DOI: 10.1002/elps.201800207] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Revised: 08/08/2018] [Accepted: 10/10/2018] [Indexed: 12/29/2022]
Affiliation(s)
- Chunye Liu
- School of Pharmacy; Xi'an Medical University; Xi'an P. R. China
- Institute of Medicine; Xi’ an Medical University; Xi'an P. R. China
| | - Xuejiao Zhang
- School of Pharmacy; Xi'an Medical University; Xi'an P. R. China
- Institute of Medicine; Xi’ an Medical University; Xi'an P. R. China
| | - Hui Jing
- School of Pharmacy; Xi'an Medical University; Xi'an P. R. China
- Institute of Medicine; Xi’ an Medical University; Xi'an P. R. China
| | - Jingshui Zhang
- School of Pharmacy; Xi'an Medical University; Xi'an P. R. China
- Institute of Medicine; Xi’ an Medical University; Xi'an P. R. China
| | - Yanqing Miao
- School of Pharmacy; Xi'an Medical University; Xi'an P. R. China
- Institute of Medicine; Xi’ an Medical University; Xi'an P. R. China
| | - Xifeng Zhai
- School of Pharmacy; Xi'an Medical University; Xi'an P. R. China
- Institute of Medicine; Xi’ an Medical University; Xi'an P. R. China
| | - Songyi Chen
- School of Pharmacy; Xi'an Medical University; Xi'an P. R. China
- Institute of Medicine; Xi’ an Medical University; Xi'an P. R. China
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Kominami H, Kobayashi K, Ido S, Kimiya H, Yamada H. Immunoactivity of self-assembled antibodies investigated by atomic force microscopy. RSC Adv 2018; 8:29378-29384. [PMID: 35547980 PMCID: PMC9084463 DOI: 10.1039/c8ra05423a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 08/10/2018] [Indexed: 11/21/2022] Open
Abstract
Immunoglobulin G (IgG), an antibody, plays a significant role in the immune system, and the functions of IgG molecules have been studied in many research fields such as medicine and engineering. Recently, we found the self-assembly of monoclonal mouse IgG molecules on a mica substrate using atomic force microscopy (AFM); the IgG molecules self-assemble into hexamers and the hexamers form a two-dimensional (2D) crystal. The self-assembly of the IgG molecules is of great interest in terms of the enhancement of the immunoactivity of the antibodies. In this study, we investigated the self-assembly of various IgG molecules on a mica substrate to discuss if the hexamerization of the IgG molecules is a general phenomenon. We also investigated the antigen binding site in the IgG antibody hexamers, and estimated the association rate constant of the self-assembled IgG molecules based on the AFM measurements. The estimated value was lower than that reported in a previous study probably because of the limited mobility of the antigen-binding fragments on the substrate.
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Affiliation(s)
- Hiroaki Kominami
- Department of Electronic Science and Engineering, Kyoto University Katsura, Nishikyo Kyoto 615-8510 Japan
| | - Kei Kobayashi
- Department of Electronic Science and Engineering, Kyoto University Katsura, Nishikyo Kyoto 615-8510 Japan
| | - Shinichiro Ido
- Department of Electronic Science and Engineering, Kyoto University Katsura, Nishikyo Kyoto 615-8510 Japan
| | - Hirokazu Kimiya
- Advanced Research Division Device Research Laboratory, Panasonic Corporation 3-1-1 Yagumo-naka-machi Moriguchi City Osaka 570-8501 Japan
| | - Hirofumi Yamada
- Department of Electronic Science and Engineering, Kyoto University Katsura, Nishikyo Kyoto 615-8510 Japan
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Moser AC, Trenhaile S, Frankenberg K. Studies of antibody-antigen interactions by capillary electrophoresis: A review. Methods 2018; 146:66-75. [DOI: 10.1016/j.ymeth.2018.03.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Revised: 03/08/2018] [Accepted: 03/13/2018] [Indexed: 11/25/2022] Open
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6
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Wang J, Zhu Z, Wang X, Yang L, Liu L, Wang J, Igbinigie E, Liu X, Li J, Qiu L, Li YQ, Jiang P. A novel monitoring approach of antibody-peptide binding using "bending" capillary electrophoresis. Int J Biol Macromol 2018. [PMID: 29524489 DOI: 10.1016/j.ijbiomac.2018.03.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Recently, the in-capillary electrophoresis assay has been applied to variety kinds of analyses owing to its multiple functional integrating features, including mixing of samples, reaction process of the mixtures, and the separation and detection in one capillary system. However, the micro-reactor still has its limitations to the currently available applications, especially the mixing step of the samples inside the capillary could not be well controlled automatically or manually. Herein, we have developed a novel capillary electrophoresis assay for the detection of antibody-peptide binding inside a bending capillary. Its efficacy was monitored using an anti-FLAG M2 antibody and its ligand conjugated with FAM dye (FAM-DYKD). The antibody and the peptide were mixed inside the bending capillary with sequential injections. It was found that the numbers of semi-circle on the capillary interfered by the antibody and peptide binding dynamic. Additionally, an online competition assay was performed, which further validated the efficacy of the bending capillary device on monitoring the dynamic binding between the antigen and antibody. In summary, our data suggests that the novel assay is a practical approach in monitoring the antibody-antigen complex formation at a nano-scale. It could be applied to detect any biomolecule-biomolecule interaction as a general strategy.
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Affiliation(s)
- Jianhao Wang
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
| | - Zhilan Zhu
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
| | - Xiang Wang
- Changzhou Second People's Hospital Affiliated to Nanjing Medical University, Changzhou 213164, People's Republic of China
| | - Li Yang
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
| | - Li Liu
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
| | - Jianpeng Wang
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
| | - Eseosaserea Igbinigie
- Department of Biomedical Science, Mercer University School of Medicine, Savannah Campus, Hoskins Building, Room #2209, 4700 Waters Ave, Savannah, GA, USA, 31404
| | - Xiaoqian Liu
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
| | - Jinping Li
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China; Department of Biomedical Science, Mercer University School of Medicine, Savannah Campus, Hoskins Building, Room #2209, 4700 Waters Ave, Savannah, GA, USA, 31404.
| | - Lin Qiu
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China.
| | - Yong-Qiang Li
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, People's Republic of China.
| | - Pengju Jiang
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China.
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Wu J, Chen Y, Yang M, Wang Y, Zhang C, Yang M, Sun J, Xie M, Jiang X. Streptavidin-biotin-peroxidase nanocomplex-amplified microfluidics immunoassays for simultaneous detection of inflammatory biomarkers. Anal Chim Acta 2017; 982:138-147. [PMID: 28734353 DOI: 10.1016/j.aca.2017.05.031] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Revised: 05/17/2017] [Accepted: 05/18/2017] [Indexed: 01/03/2023]
Abstract
Simultaneous, sensitive and quantitative detection of biomarkers in infectious disease is crucial for guiding antimicrobial treatment and predicting prognosis. This work reported an ultrasensitive and quantitative microfluidic immunoassay combined with the streptavidin-biotin-peroxidase (SA-B-HRP) nanocomplex-signal amplification system (MIS) to detect two inflammatory biomarkers, procalcitonin (PCT, for discriminating bacterial infections from nonbacterial infections) and interleukin-6 (IL-6, for monitoring the kinetics of infectious disease) simultaneously. The amplification system was based on the one step self-assembly of SA and B-HRP to form the SA-B-HRP nanocomplex, which effectively amplified the chemiluminescent signals. The linear ranges for PCT and IL-6 detections by MIS were 250-1.28 × 105 pg mL-1 and 5-1280 pg mL-1, and the limit of detection (LOD) were 48.9 pg mL-1 and 1.0 pg mL-1, respectively, both of which were significantly improved compared with microfluidic immunoassays without amplification system (MI). More importantly, PCT and IL-6 in human serum could be simultaneously detected in the same run by MIS, which could greatly improve the detection efficiency and reduce the cost. Given the advantages of high sensitivity, multiplex and quantitative detection, MIS could be potentially applied for detection of biomarkers at low concentration in clinical diagnosis.
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Affiliation(s)
- Jing Wu
- Analytical & Testing Center of Beijing Normal University, Beijing 100875, China; CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Yiping Chen
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China.
| | - Mingzhu Yang
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Yu Wang
- Beijing Institute for Tropical Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Cheng Zhang
- Beijing Institute for Tropical Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Mo Yang
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Jiashu Sun
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China.
| | - Mengxia Xie
- Analytical & Testing Center of Beijing Normal University, Beijing 100875, China.
| | - Xingyu Jiang
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100046, China.
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Růžička M, Koval D, Vávra J, Reyes-Gutiérrez PE, Teplý F, Kašička V. Interactions of helquats with chiral acidic aromatic analytes investigated by partial-filling affinity capillary electrophoresis. J Chromatogr A 2016; 1467:417-426. [PMID: 27578406 DOI: 10.1016/j.chroma.2016.08.053] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 08/20/2016] [Accepted: 08/24/2016] [Indexed: 01/18/2023]
Abstract
Noncovalent molecular interactions between helquats, a new class of dicationic helical extended diquats, and several chiral acidic aromatic drugs and catalysts have been investigated using partial-filling affinity capillary electrophoresis (PF-ACE). Helquats dissolved at 1mM concentration in the aqueous background electrolyte (40mM Tris, 20mM acetic acid, pH 8.1) were introduced as ligand zones of variable length (0-130mm) into the hydroxypropylcellulose coated fused silica capillary whereas 0.1mM solutions of negatively charged chiral drugs or catalysts (warfarin, ibuprofen, mandelic acid, etodolac, binaphthyl phosphate and 11 other acidic aromatic compounds) were applied as a short analyte zone at the injection capillary end. After application of electric field, analyte and ligand migrated against each other and in case of their interactions, migration time of the analyte was increasing with increasing length of the ligand zone. From the tested compounds, only isomers of those exhibiting helical chirality and/or possessing conjugated aromatic systems were enantioselectively separated through their differential interactions with helquats. Some compounds with conjugated aromatic groups interacted with helquats moderately strongly but non-enantiospecifically. Small compounds with single benzene ring exhibited no or very weak non-enantiospecific interactions. PF-ACE method allowed to determine binding constants of the analyte-helquat complexes from the changes of migration times of the analytes. Binding constants of the weakest complexes of the analytes with helquats were less than 50L/mol, whereas binding constants of the strongest complexes were in the range 1 000-1 400L/mol.
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Affiliation(s)
- Martin Růžička
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám., 542/2, 166 10 Prague 6, Czech Republic; Faculty of Science, Charles University in Prague, Albertov 6, 128 43 Prague 2, Czech Republic
| | - Dušan Koval
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám., 542/2, 166 10 Prague 6, Czech Republic
| | - Jan Vávra
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám., 542/2, 166 10 Prague 6, Czech Republic
| | - Paul E Reyes-Gutiérrez
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám., 542/2, 166 10 Prague 6, Czech Republic
| | - Filip Teplý
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám., 542/2, 166 10 Prague 6, Czech Republic
| | - Václav Kašička
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám., 542/2, 166 10 Prague 6, Czech Republic.
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9
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Cutting-edge capillary electrophoresis characterization of monoclonal antibodies and related products. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1032:61-78. [PMID: 27265157 DOI: 10.1016/j.jchromb.2016.05.028] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 05/12/2016] [Accepted: 05/17/2016] [Indexed: 01/22/2023]
Abstract
Out of all categories, monoclonal antibodies (mAbs), biosimilar, antibody-drug conjugates (ADCs) and Fc-fusion proteins attract the most interest due to their strong therapeutic potency and specificity. Because of their intrinsic complexity due to a large number of micro-heterogeneities, there is a crucial need of analytical methods to provide comprehensive in-depth characterization of these molecules. CE presents some obvious benefits as high resolution separation and miniaturized format to be widely applied to the analysis of biopharmaceuticals. CE is an effective method for the separation of proteins at different levels. capillary gel electrophoresis (CGE), capillary isoelectric focusing (cIEF) and capillary zone electrophoresis (CZE) have been particularly relevant for the characterization of size and charge variants of intact and reduced mAbs, while CE-MS appears to be a promising analytical tool to assess the primary structure of mAbs and related products. This review will be dedicated to detail the current and state-of-the-art CE-based methods for the characterization of mAbs and related products.
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10
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Qin Y, Qiu L, Qin H, Ding S, Liu L, Teng Y, Chen Y, Wang C, Li J, Wang J, Jiang P. In-capillary detection of fast antibody-peptide binding using fluorescence coupled capillary electrophoresis. Electrophoresis 2015; 37:233-8. [DOI: 10.1002/elps.201500429] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 10/15/2015] [Accepted: 10/18/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Yuqin Qin
- School of Petrochemical Engineering; Changzhou University; Changzhou Jiangsu P. R. China
| | - Lin Qiu
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Haifang Qin
- Institute of Pharmaceutical and Environmental Engineering; Changzhou Vocational Institute of Engineering; Changzhou Jiangsu P. R. China
| | - Shumin Ding
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Li Liu
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Yiwan Teng
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Yao Chen
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Cheli Wang
- School of Petrochemical Engineering; Changzhou University; Changzhou Jiangsu P. R. China
| | - Jinchen Li
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Jianhao Wang
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Pengju Jiang
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
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