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Bao L, Yang A, Liu Z, Ma J, Pan J, Zhu Y, Tang Y, Dong P, Zhao G, Chen S. Development of a mammalian cell-based ZZ display system for IgG quantification. BMC Biotechnol 2023; 23:24. [PMID: 37507705 PMCID: PMC10375748 DOI: 10.1186/s12896-023-00798-2] [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: 02/22/2023] [Accepted: 07/25/2023] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND Biological laboratories and companies involved in antibody development need convenient and versatile methods to detect highly active antibodies. METHODS To develop a mammalian cell-based ZZ display system for antibody quantification, the eukaryotic ZZ-displayed plasmid was constructed and transfected into CHO cells. After screening by flow cytometric sorting, the stable ZZ display cells were incubated with reference IgG and samples with unknown IgG content for 40 min at 4℃, the relative fluorescence intensity of cells was analyzed and the concentration of IgG was calculated. RESULTS By investigating the effects of different display-associated genetic elements, a eukaryotic ZZ-displaying plasmid with the highest display efficiency were constructed. After transfection and screening, almost 100% of the cells were able to display the ZZ peptide (designated CHO-ZZ cells). These stable CHO-ZZ cells were able to capture a variety of IgG, including human, rabbit, donkey and even mouse and goat. CHO-ZZ cells could be used to quantify human IgG in the range of approximately 12.5-1000 ng/mL, and to identify high-yielding engineered monoclonal cell lines. CONCLUSIONS We have established a highly efficient CHO-ZZ display system in this study, which enables the quantification of IgG from various species under physiological conditions. This system offers the advantage of eliminating the need for antibody purification and will contribute to antibody development.
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Affiliation(s)
- Lingzhi Bao
- School of Public Health, Wannan Medical College, Wuhu, 241002, China
| | - Aizhen Yang
- School of Public Health, Wannan Medical College, Wuhu, 241002, China
| | - Ziqing Liu
- School of Public Health, Wannan Medical College, Wuhu, 241002, China
| | - Jie Ma
- School of Public Health, Wannan Medical College, Wuhu, 241002, China
| | - Jiajie Pan
- School of Public Health, Wannan Medical College, Wuhu, 241002, China
| | - Yi Zhu
- School of Public Health, Wannan Medical College, Wuhu, 241002, China
| | - Ying Tang
- School of Public Health, Wannan Medical College, Wuhu, 241002, China
| | - Pu Dong
- School of Public Health, Wannan Medical College, Wuhu, 241002, China
| | - Guoping Zhao
- Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
| | - Shaopeng Chen
- School of Public Health, Wannan Medical College, Wuhu, 241002, China.
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Oh HE, Eathorne S, Jones MA. Use of biosensor technology in analysing milk and dairy components: A review. INT J DAIRY TECHNOL 2022. [DOI: 10.1111/1471-0307.12900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Shin JH, Reddy YVM, Park TJ, Park JP. Recent advances in analytical strategies and microsystems for food allergen detection. Food Chem 2022; 371:131120. [PMID: 34634648 DOI: 10.1016/j.foodchem.2021.131120] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 12/18/2022]
Abstract
Food allergies are abnormal immune responses that typically occur within short period after exposure of certain allergenic proteins in food or food-related resources. Currently, the means to treat food allergies is not clearly understood, and the only known prevention method is avoiding the consumption of allergen-containing foods. From the viewpoint of analytical methods, the effective detection of food allergens is hindered by the effects of various treatment processes and food matrices on trace amounts of allergens. The aim of this effort is to provide the reader with a clear and concise view of new advances for the detection of food allergens. Therefore, the present review explored the development status of various biosensors for the real-time, on-site detection of food allergens with high selectivity and sensitivity. The review also described the analytical consideration for the quantification of food allergens, and global development trends and the future availability of these technologies.
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Affiliation(s)
- Jae Hwan Shin
- Department of Food Science and Technology, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Y Veera Manohara Reddy
- Department of Food Science and Technology, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Tae Jung Park
- Department of Chemistry, Institute of Interdisciplinary Convergence Research, Research Institute of Chem-Bio Diagnostic Technology, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea.
| | - Jong Pil Park
- Department of Food Science and Technology, Chung-Ang University, Anseong 17546, Republic of Korea.
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Grover Shah V, Ray S, Karlsson R, Srivastava S. Calibration-free concentration analysis of protein biomarkers in human serum using surface plasmon resonance. Talanta 2015; 144:801-8. [PMID: 26452893 DOI: 10.1016/j.talanta.2015.06.074] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 06/24/2015] [Accepted: 06/25/2015] [Indexed: 10/23/2022]
Abstract
In complex biological samples such as serum, determination of specific and active concentration of target proteins, independent of a calibration curve, will be valuable in many applications. Calibration-free concentration analysis (CFCA) is a surface plasmon resonance (SPR)-based label-free approach, which calculates active concentration of proteins using their known diffusion coefficient and observed changes in binding rates at different flow rates under diffusion-limited conditions. Here, for the first time we demonstrate the application of CFCA for determining protein biomarker abundance, specifically serum amyloid A (SAA), directly in the serum samples of patients suffering from different infectious and non-infectious diseases. The assay involves preparation of appropriate reaction surfaces by immobilizing antibodies on CM5 chips via amine coupling followed by serum sample preparation and injection over activated and reference surfaces at flow-rates of 5 and 100 μL/min. The system was validated in healthy and diseased (infectious and non-infectious) serum samples by quantifying two different proteins: β2-microglobulin (β2M) and SAA. All concentration assays were performed for nearly 100 serum samples, which showed reliable quantification in unattended runs with high accuracy and sensitivity. The method could detect the serum β2M to as low as 13 ng/mL in 1000-fold serum dilution, indicating the possible utility of this approach to detect low abundance protein biomarkers in body fluids. Applying the CFCA approach, significant difference in serum abundance of SAA was identified in diseased subjects as compared to the healthy controls, which correlated well with our previous proteomic investigations. Estimation of SAA concentration for a subset of healthy and diseased sera was also performed using ELISA, and the trend was observed to be similar in both SPR assay and ELISA. The reproducibility of CFCA in various serum samples made the interpretation of assay simple and reliable. This study illustrates a significant step forward in rapid monitoring of several protein markers in serum samples, with utility in biomarker validation and other therapeutic applications.
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Affiliation(s)
- Veenita Grover Shah
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India; Wipro GE Healthcare, Mumbai, India
| | - Sandipan Ray
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | | | - Sanjeeva Srivastava
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
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Pilolli R, Monaci L, Visconti A. Advances in biosensor development based on integrating nanotechnology and applied to food-allergen management. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2013.02.005] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Comparison of three immunosensor methods (surface plasmon resonance, screen-printed and classical amperometric immunosensors) for immunoglobulin G determination in human serum and animal or powdered milks. J Pharm Biomed Anal 2013; 73:90-8. [DOI: 10.1016/j.jpba.2012.03.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2011] [Accepted: 03/09/2012] [Indexed: 12/17/2022]
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Crosson C, Rossi C. Quartz crystal microbalance immunosensor for the quantification of immunoglobulin G in bovine milk. Biosens Bioelectron 2012; 42:453-9. [PMID: 23238318 DOI: 10.1016/j.bios.2012.11.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Revised: 11/07/2012] [Accepted: 11/10/2012] [Indexed: 11/30/2022]
Abstract
The development of precise and sensitive methods for milk analysis remains a challenging task in the milk quality control field. A piezoelectric immunosensor was developed for the real-time quantification of immunoglobulin G (IgG) in bovine milk and colostrum. The sensing surface was designed with rabbit antibovine IgG as the detecting molecule, coupled onto a carboxymethyl dextran-coated gold crystal. Total binding and non-specific binding were measured using a quartz crystal microbalance with dissipation (QCM-D). Conditions of analysis, including ligand immobilization, dilution ratio of milk, salinity, and pH of the dilution buffer were optimized by Doehlert experimental design in order to enhance the detection specificity. The performances of the optimized immunosensor were evaluated. The standard curve was established from QCM-D responses and was linear until an IgG concentration of 2500 ng/mL, with a detection limit of 46 ng/mL. The total assay time is 5 min per sample, including the regeneration step. The intra- and inter-assay variation coefficients were equal to or below 4.7 and 6.1%, respectively. The sensing surface was stable for 100 analyses. This technique was successfully applied to the detection of colostrum addition in milk, with a minimum threshold of 0.1%. This new IgG quantification method is particularly interesting as a cost-effective and time-saving alternative for the dairy analytical laboratories when compared with the existing quantification methods.
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Affiliation(s)
- Cyril Crosson
- OCLA, Maison du Lait 42 Rue Châteaudun, 75009 Paris, France
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Ge S, Jiao X, Chen D. Ultrasensitive electrochemical immunosensor for CA 15-3 using thionine-nanoporous gold–graphene as a platform and horseradish peroxidase-encapsulated liposomes as signal amplification. Analyst 2012; 137:4440-7. [DOI: 10.1039/c2an35751h] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Hurley WL, Theil PK. Perspectives on immunoglobulins in colostrum and milk. Nutrients 2011; 3:442-74. [PMID: 22254105 PMCID: PMC3257684 DOI: 10.3390/nu3040442] [Citation(s) in RCA: 406] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2011] [Revised: 03/21/2011] [Accepted: 04/12/2011] [Indexed: 12/11/2022] Open
Abstract
Immunoglobulins form an important component of the immunological activity found in milk and colostrum. They are central to the immunological link that occurs when the mother transfers passive immunity to the offspring. The mechanism of transfer varies among mammalian species. Cattle provide a readily available immune rich colostrum and milk in large quantities, making those secretions important potential sources of immune products that may benefit humans. Immune milk is a term used to describe a range of products of the bovine mammary gland that have been tested against several human diseases. The use of colostrum or milk as a source of immunoglobulins, whether intended for the neonate of the species producing the secretion or for a different species, can be viewed in the context of the types of immunoglobulins in the secretion, the mechanisms by which the immunoglobulins are secreted, and the mechanisms by which the neonate or adult consuming the milk then gains immunological benefit. The stability of immunoglobulins as they undergo processing in the milk, or undergo digestion in the intestine, is an additional consideration for evaluating the value of milk immunoglobulins. This review summarizes the fundamental knowledge of immunoglobulins found in colostrum, milk, and immune milk.
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Affiliation(s)
- Walter L. Hurley
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Peter K. Theil
- Department of Animal Health and Bioscience, Aarhus University, DK-8830 Tjele, Denmark;
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Linman MJ, Abbas A, Cheng Q. Interface design and multiplexed analysis with surface plasmon resonance (SPR) spectroscopy and SPR imaging. Analyst 2010; 135:2759-67. [PMID: 20830330 PMCID: PMC7365140 DOI: 10.1039/c0an00466a] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Ever since the advent of surface plasmon resonance (SPR) and SPR imaging (SPRi) in the early 1990s, their use in biomolecular interaction analysis (BIA) has expanded phenomenally. An important research area in SPR sensor development is the design of novel and effective interfaces that allow for the probing of a variety of chemical and biological interactions in a highly selective and sensitive manner. A well-designed and robust interface is a necessity to obtain both accurate and pertinent biological information. This review covers the recent research efforts in this area with a specific focus towards biointerfaces, new materials for SPR biosensing, and novel array designs for SPR imaging. Perspectives on the challenges ahead and next steps for SPR technology are discussed.
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Affiliation(s)
- Matthew J. Linman
- Department of Chemistry, University of California, Riverside, California 92521
| | - Abdennour Abbas
- Department of Chemistry, University of California, Riverside, California 92521
| | - Quan Cheng
- Department of Chemistry, University of California, Riverside, California 92521
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