1
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Reinert T, Houzé P, Francois YN, Gahoual R. Enhancing affinity purification of monoclonal antibodies from human serum for subsequent CZE-MS analysis. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1234:123974. [PMID: 38271747 DOI: 10.1016/j.jchromb.2023.123974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/14/2023] [Accepted: 12/16/2023] [Indexed: 01/27/2024]
Abstract
Due to the separation technique employed, capillary electrophoresis coupled to mass spectrometry (CE-MS) analysis performances are significantly influenced by the chemical composition and the complexity of the sample. In various applications, that impact has prevented the use of CE-MS for the characterization and quantification of proteins in biological samples. Here we present the development and evaluation and a sample preparation procedure, based on affinity purification, for the specific extraction of the monoclonal antibody (mAbs) infliximab from human serum in order to perform subsequent proteolytic digestion and CE-MS/MS analysis. Three distinctive sample preparation strategies were envisaged. In each case, the different steps composing the protocol were thoroughly optimized and evaluated in order to provide a sample preparation addressing the important complexity of serums samples while providing an optimal compatibility with CE-MS/MS analysis. The different sample preparation strategies were assessed concerning the possibility to achieve an appropriate absolute quantification of the mAbs using CE-MS/MS for samples mimicking patient serum samples. Also, the possibility to perform the characterization of several types of post-translational modifications (PTMs) was evaluated. The sample preparation protocols allowed the quantification of the mAbs in serums samples for concentration as low as 0.2 µg·mL-1 (2.03 nM) using CE-MS/MS analysis, also the possibility to characterize and estimate the modification level of PTMs hotspots in a consistent manner. Results allowed to attribute the effect on the electrophoretic separation of the different steps composing sample preparation. Finally, they demonstrated that sample preparation for CE-MS/MS analysis could benefit greatly for the extended applicability of this type of analysis for complex biological matrices.
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Affiliation(s)
- Tessa Reinert
- Laboratoire de Spectrométrie de Masse des Interactions et des Systèmes (LSMIS) UMR 7140 (Unistra-CNRS), Université de Strasbourg, France; Université Paris Cité, Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS), CNRS, Inserm, Faculté de sciences pharmaceutiques et biologiques, Paris, France.
| | - Pascal Houzé
- Université Paris Cité, Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS), CNRS, Inserm, Faculté de sciences pharmaceutiques et biologiques, Paris, France; Laboratoire de Toxicologie Biologique, Hôpital Lariboisière, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France
| | - Yannis-Nicolas Francois
- Laboratoire de Spectrométrie de Masse des Interactions et des Systèmes (LSMIS) UMR 7140 (Unistra-CNRS), Université de Strasbourg, France
| | - Rabah Gahoual
- Université Paris Cité, Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS), CNRS, Inserm, Faculté de sciences pharmaceutiques et biologiques, Paris, France
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2
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Stuart L. Production and Purification of Antibodies in Chinese Hamster Ovary Cells. Methods Mol Biol 2024; 2762:183-190. [PMID: 38315366 DOI: 10.1007/978-1-0716-3666-4_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Antibodies are versatile biological molecules with widespread applications in research and medicine. This protocol outlines the generation of monoclonal IgG antibodies from Chinese hamster ovary cells. It includes steps for cell maintenance, transient transfection, and antibody purification via protein A affinity chromatography. The methods described are intended for the production of milligram amounts of protein but can be adapted for most small- to mid-scale applications.
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3
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Chen J, Wang M, Li S, Ye J, Li L, Wu Y, Cai D, Liu T, Zhu L, Shao Y, Wang S. Well-oriented immobilized immunoaffinity magnetic beads for detection of fumonisins in grains and feeds via pre-column automatic derivatization of high-performance liquid chromatography. Food Chem 2023; 422:136226. [PMID: 37126958 DOI: 10.1016/j.foodchem.2023.136226] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 04/10/2023] [Accepted: 04/20/2023] [Indexed: 05/03/2023]
Abstract
In this study, based on the high-throughput automatic sample pretreatment with immunoaffinity magnetic beads with oriented immobilized antibodies, grain and feed fumonisin (FB) content was detected using pre-column automatic derivatization of high-performance liquid chromatography (HPLC). The FB capacity of well-oriented antibody immunoaffinity magnetic beads was 1.5-1.8 times that of magnetic beads with randomly fixed antibody. This pre-column automatic derivatization method using an autosampler can reduce error from manual injection and improve detection efficiency. The spiked recoveries for three different concentrations in maize, husked rice, and pig feed under optimized conditions were 84.6-104.0% (RSD < 9.3%). Our novel method was also applied to the analysis of FBs in 63 maize samples collected from the main maize-production regions in China. The results showed that as latitude increased, the contamination level of FBs tended to decrease. High temperature and high humidity are also more favorable for FB growth.
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Affiliation(s)
- Jinnan Chen
- Institute of Grain and Oil Quality Safety, Academy of National Food and Strategic Reserves Administration, Beijing 102629, PR China
| | - Meng Wang
- Institute of Grain and Oil Quality Safety, Academy of National Food and Strategic Reserves Administration, Beijing 102629, PR China; School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, PR China
| | - Sen Li
- Institute of Grain and Oil Quality Safety, Academy of National Food and Strategic Reserves Administration, Beijing 102629, PR China
| | - Jin Ye
- Institute of Grain and Oil Quality Safety, Academy of National Food and Strategic Reserves Administration, Beijing 102629, PR China.
| | - Li Li
- Institute of Grain and Oil Quality Safety, Academy of National Food and Strategic Reserves Administration, Beijing 102629, PR China
| | - Yu Wu
- Institute of Grain and Oil Quality Safety, Academy of National Food and Strategic Reserves Administration, Beijing 102629, PR China
| | - Di Cai
- Institute of Grain and Oil Quality Safety, Academy of National Food and Strategic Reserves Administration, Beijing 102629, PR China
| | - Tongtong Liu
- Institute of Grain and Oil Quality Safety, Academy of National Food and Strategic Reserves Administration, Beijing 102629, PR China
| | - Lin Zhu
- Institute of Grain and Oil Quality Safety, Academy of National Food and Strategic Reserves Administration, Beijing 102629, PR China
| | - Yi Shao
- NHC Key Laboratory of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Beijing 100021, PR China
| | - Songxue Wang
- Institute of Grain and Oil Quality Safety, Academy of National Food and Strategic Reserves Administration, Beijing 102629, PR China
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4
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Lu Y, Lin J, Bian T, Chen J, Liu D, Ma M, Gao Z, Chen J, Ju D, Wang X. Risk control of host cell proteins in one therapeutic antibody produced by concentrated fed-batch (CFB) mode. Eng Life Sci 2023; 23:e2200060. [PMID: 36874608 PMCID: PMC9978904 DOI: 10.1002/elsc.202200060] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/26/2022] [Accepted: 01/24/2023] [Indexed: 02/10/2023] Open
Abstract
Multiple control strategies, including a downstream purification process with well-controlled parameters and a comprehensive release or characterization for intermediates or drug substances, were implemented to mitigate the potential risk of host cell proteins (HCPs) in one concentrated fed-batch (CFB) mode manufactured product. A host cell process specific enzyme-linked immunosorbent assay (ELISA) method was developed for the quantitation of HCPs. The method was fully validated and showed good performance including high antibody coverage. This was confirmed by 2D Gel-Western Blot analysis. Furthermore, a LC-MS/MS method with non-denaturing digestion and a long gradient chromatographic separation coupled with data dependent acquisition (DDA) on a Thermo/QE-HF-X mass spectrometer was developed as an orthogonal method to help identify the specific types of HCPs in this CFB product. Because of the high sensitivity, selectivity and adaptability of the new developed LC-MS/MS method, significantly more species of HCP contaminants were able to be identified. Even though high levels of HCPs were observed in the harvest bulk of this CFB product, the development of multiple processes and analytical control strategies may greatly mitigate potential risks and reduce HCPs contaminants to a very low level. No high-risk HCP was identified and the total amount of HCPs was very low in the CFB final product.
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Affiliation(s)
- Yiling Lu
- Department of Analytical ScienceFormulation & Quality Control, Genor Biopharma Co., Ltd.ShanghaiChina
| | - Jun Lin
- Department of Biological Medicines & Shanghai Engineering Research Center of ImmunotherapeuticsFudan University School of PharmacyShanghaiChina
- Department of Analytical ScienceFormulation & Quality Control, Genor Biopharma Co., Ltd.ShanghaiChina
| | - Tianze Bian
- Department of Analytical ScienceFormulation & Quality Control, Genor Biopharma Co., Ltd.ShanghaiChina
| | - Jin Chen
- Department of Analytical ScienceFormulation & Quality Control, Genor Biopharma Co., Ltd.ShanghaiChina
| | - Dan Liu
- Department of Analytical ScienceFormulation & Quality Control, Genor Biopharma Co., Ltd.ShanghaiChina
| | - Mingjun Ma
- Department of Analytical ScienceFormulation & Quality Control, Genor Biopharma Co., Ltd.ShanghaiChina
| | - Zhen Gao
- Department of Analytical ScienceFormulation & Quality Control, Genor Biopharma Co., Ltd.ShanghaiChina
| | - Jiemin Chen
- Department of Analytical ScienceFormulation & Quality Control, Genor Biopharma Co., Ltd.ShanghaiChina
| | - Dianwen Ju
- Department of Biological Medicines & Shanghai Engineering Research Center of ImmunotherapeuticsFudan University School of PharmacyShanghaiChina
| | - Xing Wang
- Array Bridge Inc.St. LouisMissouriUSA
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5
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Trinh THT, Ye L, Hajizadeh S. Impact of double cryogelation process on a macroporous dye-affinity hydrogel. J Sep Sci 2023; 46:e2300017. [PMID: 36780629 DOI: 10.1002/jssc.202300017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/06/2023] [Accepted: 02/09/2023] [Indexed: 02/15/2023]
Abstract
Cryogels with interconnected channels allow high flow-through properties and mass transfer when dealing with complex mixtures such as non-clarified crude extracts. However, their mechanical strength can be challenged due to a large void volume inside the polymeric network. We have addressed this problem by forming a double-layer cryogel applied as a dye-affinity chromatography gel. In this study, poly(acrylamide-co-allyl glycidyl ether) cryogel was prepared at sub-zero temperature. The second layer was then prepared inside the primary cryogel under the same conditions to form a double-layer network. Cibacron Blue F3GA, a dye molecule, was immobilized on the surface of the cryogels. Bovine serum albumin was used as a model molecule to study the adsorption/elution procedure in batch and continuous modes. The maximum batch binding capacity and the dynamic binding capacity for the single-layer cryogel were 18 and 0.11, and for the double-layer cryogel were 7.5 and 0.9 mg/g of gel, respectively. However, the mechanical stability of the double-layer cryogel increased 7-fold (144 kPa). It was found that the kinetic and adsorption isotherms follow pseudo-second-order and Freundlich models, respectively. The regeneration of the columns after adsorption/elution cycles was evaluated, and no significant loss of capacity was observed after 10 cycles.
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Affiliation(s)
- Thi Hoai Thu Trinh
- Department of Chemistry, Division of Pure and Applied Biochemistry, Lund University, Lund, Sweden.,Chemical laboratory, Ejendals AB, Leksand, Sweden
| | - Lei Ye
- Department of Chemistry, Division of Pure and Applied Biochemistry, Lund University, Lund, Sweden
| | - Solmaz Hajizadeh
- Department of Chemistry, Division of Pure and Applied Biochemistry, Lund University, Lund, Sweden
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6
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Janairo JIB. Machine Learning Model for Biomimetic Chromatography Peptide Ligands. ACS APPLIED BIO MATERIALS 2022; 5:5264-5269. [PMID: 36265018 DOI: 10.1021/acsabm.2c00684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Purification is an essential part of antibody production, which are important therapeutic biomolecules. Common methods of antibody purification rely on affinity chromatography (AC), wherein whole proteins are oftentimes used as ligands to catch the antibodies to be purified. While AC has been successful in purifying antibodies, it is associated with multiple challenges such as high cost and low stability, among others. A promising alternative is using short peptide sequences in place of whole proteins as the stationary phase for the chromatographic separation of the antibodies. In an effort to accelerate the discovery and development of short peptides for biomimetic chromatography, this study reports the creation of a machine learning classification which was trained and tested on 480 tetrapeptides. The optimized logistic regression model uses Cruciani properties as the input variables and can categorize peptides into one of two classes based on their binding affinity with immunoglobulin G (IgG). The externally validated model demonstrates satisfactory predictive performance and excellent discrimination as demonstrated by performance metrics such as AUC = 0.874, Balanced Accuracy = 0.874, F1 = 0.871, Precision = 0.884, and Recall = 0.859. Apart from this, the classifier has also provided valuable insights into important variables that influence the classification, such as electrostatic and hydrophobic interactions. Overall, the classifier can be regarded as a welcome development for biomimetic chromatography and is the first study that aims to integrate machine learning in the biomimetic chromatography peptide development process.
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Affiliation(s)
- Jose Isagani B Janairo
- Department of Biology, De La Salle University, 2401 Taft Avenue, 0922Manila, Philippines
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7
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Development of a Versatile Half-Strip Lateral Flow Assay toward the Detection of Rift Valley Fever Virus Antibodies. Diagnostics (Basel) 2022; 12:diagnostics12112664. [DOI: 10.3390/diagnostics12112664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 10/27/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022] Open
Abstract
Rift Valley fever (RVF) is a mosquito-borne zoonotic disease that is caused by the Rift Valley fever virus (RVFV); Bunyaviridae: Phlebovirus. RVF disease can affect several different species, including ruminants, camels and humans and thus present a dual threat to public health and livestock food production in endemic regions. In livestock, the RVFV infection is characterised by an acute hepatitis, abortion and high mortality rates in new-born animals. The current RVF diagnostic techniques have shown good sensitivity. However, they require extensive sample processing and complex instrumentation. Owing to speed, low cost, ease of use, and most importantly, the ability to diagnose diseases at sites where they are managed, lateral flow immunoassays (LFIA) are the most widely used point-of-care (POC) tools for disease diagnosis. In this study, a lateral flow assay (LFA) device that is able to detect antibodies against RVFV, with a minimum detectable concentration of 0.125 mg/mL, was successfully developed. The LFA also successfully detected RVFV antibodies in reference RVFV sera. Protein A (ProA), which has the ability to bind immunoglobulins from different species, was used in the detection probe, giving the developed RVFV LFA potential for multi-species diagnosis.
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8
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Mark JKK, Lim CSY, Nordin F, Tye GJ. Expression of mammalian proteins for diagnostics and therapeutics: a review. Mol Biol Rep 2022; 49:10593-10608. [PMID: 35674877 PMCID: PMC9175168 DOI: 10.1007/s11033-022-07651-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 05/25/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND Antibodies have proven to be remarkably successful for biomedical applications. They play important roles in epidemiology and medicine from diagnostics of diseases to therapeutics, treating diseases from incessant chronic diseases such as rheumatology to pandemic outbreaks. With no end in sight for the demand for antibody products, optimizations and new techniques must be expanded to accommodate this. METHODS AND RESULTS This review discusses optimizations and techniques for antibody production through choice of discovery platforms, expression systems, cell culture mediums, and other strategies to increase expression yield. Each system has its own merits and demerits, and the strategy chosen is critical in addressing various biological aspects. CONCLUSIONS There is still insufficient evidence to validate the efficacy of some of these techniques, and further research is needed to consolidate these industrial production systems. There is no doubt that more strategies, systems, and pipelines will contribute to enhance biopharmaceutical production.
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Affiliation(s)
- Jacqueline Kar Kei Mark
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800, Penang, Minden, Malaysia
| | - Crystale Siew Ying Lim
- Department of Biotechnology, Faculty of Applied Sciences, UCSI University, No 1 Jalan Menara Gading, UCSI Heights, Taman Connaught, 56000, Kuala Lumpur, Cheras, Malaysia
| | - Fazlina Nordin
- Tissue Engineering Centre (TEC), Universiti Kebangsaan Malaysia Medical Centre (UKMMC), 56000, Kuala Lumpur, Cheras, Malaysia
| | - Gee Jun Tye
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800, Penang, Minden, Malaysia.
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9
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Chiarello M, Anfossi L, Cavalera S, Di Nardo F, Serra T, Sordello F, Baggiani C. Rabbit IgG-imprinted nanoMIPs by solid phase synthesis: the effect of cross-linkers on their affinity and selectivity. J Mater Chem B 2022; 10:6724-6731. [PMID: 35343553 DOI: 10.1039/d2tb00245k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Solid phase synthesis (SPS) of molecularly imprinted nanopolymers (nanoMIPs) represents an innovative method to prepare nanomaterials with tailor-made molecular recognition properties towards peptides and proteins. The synthesis of nanoMIPs by SPS usually involves a pre-polymerization formulation, where the cross-linker is invariably N,N'-methylen-bis-acrylamide (BIS). To date, the effect of cross-linkers on the binding properties of nanoMIPs prepared using cross-linkers other than BIS has never been reported. In this work, in order to investigate the effect of different cross-linkers in protein-imprinted nanoMIPs prepared by SPS, alongside BIS we considered other similar cross-linkers: N,N'-ethylene dimethacrylamide (EDAM), N,O-bis-methacryloylethanolamine (NOBE), ethylene glycol dimethacrilate (EDMA) and glycerol dimethacrylate (GDMA), replacing BIS with them in pre-polymerization mixtures. The synthetized nanoMIPs were homogeneous, with a polydispersity index of 0.24-0.30 and a mean diameter of 129-169 nm in water. The binding properties of the nanoMIPs were measured via equilibrium partition experiments with the template, rabbit IgG (RIgG), and the selectivity was evaluated with respect to bovine IgG (BIgG), bovine serum albumin (BSA) and hen egg lysozyme (LZM). The experimental results show that all the cross-linkers, with the exception of EDMA, endowed nanoMIPs with high binding affinities for the template (BIS: 16.0 × 106 mol-1 L, EDAM: 8.8 × 106 mol-1 L, NOBE: 15.8 × 106 mol-1 L, and GDMA: 12.8 × 106 mol-1 L), medium to high imprinting factors (BIS: 12.3, EDAM: 5.5, NOBE: 7.2, and GDMA: 11.6) and good selectivity towards other proteins but markedly dependent on the structure of the cross-linker, confirming the importance of the latter in the SPS of imprinted nanopolymers.
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Affiliation(s)
- Matteo Chiarello
- Department of Chemistry, University of Torino, Via Giuria 7, 10125 - Torino, Italy.
| | - Laura Anfossi
- Department of Chemistry, University of Torino, Via Giuria 7, 10125 - Torino, Italy.
| | - Simone Cavalera
- Department of Chemistry, University of Torino, Via Giuria 7, 10125 - Torino, Italy.
| | - Fabio Di Nardo
- Department of Chemistry, University of Torino, Via Giuria 7, 10125 - Torino, Italy.
| | - Thea Serra
- Department of Chemistry, University of Torino, Via Giuria 7, 10125 - Torino, Italy.
| | - Fabrizio Sordello
- Department of Chemistry, University of Torino, Via Giuria 7, 10125 - Torino, Italy.
| | - Claudio Baggiani
- Department of Chemistry, University of Torino, Via Giuria 7, 10125 - Torino, Italy.
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10
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An enhanced immunochromatography assay based on colloidal gold-decorated polydopamine for rapid and sensitive determination of gentamicin in animal-derived food. Food Chem 2022; 387:132916. [DOI: 10.1016/j.foodchem.2022.132916] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 03/24/2022] [Accepted: 04/05/2022] [Indexed: 11/22/2022]
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11
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Abstract
Antibodies are an integral part of many biological assays and biotherapeutics. However, the sources from which antibodies are derived frequently contain other contaminants which may interfere with assays or cause adverse reactions if administered in vivo. Therefore, a means of isolating these antibodies from their source at high levels of purity is critical. Affinity chromatography is currently one of the most widely applied methods for the purification of antibodies. This method relies on specific and reversible, interactions between antibody structures, or recombinant tags fused to these structures, and ligands immobilized on solid support matrices, generally within a column. Herein, common chromatographic methods applied to antibody purification are described. These include the purification of IgG, and its recombinant forms, through protein A, protein G and immobilized metal affinity chromatography.
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Affiliation(s)
- Arabelle Cassedy
- School of Biotechnology, Dublin City University, Dublin, Ireland
| | - Richard O'Kennedy
- School of Biotechnology, Dublin City University, Dublin, Ireland.
- Hamad Bin Khalifa University, Doha, Qatar.
- Qatar Foundation, Doha, Qatar.
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12
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Fang YM, Lin DQ, Yao SJ. Tetrapeptide ligands screening for antibody separation and purification by molecular simulation and experimental verification. Biochem Eng J 2021. [DOI: 10.1016/j.bej.2021.108213] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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13
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Zhou X, Jiang H, Tang Z, Sun H, Lin Z, Bian Q, Yao G, Zhang T, Chen M, Zeng W, Yu X, Huang Y. Acquirement of HRP conjunct IgG anti-IgMs from most widely cultured freshwater fishes in China and its immunoreactivity. AN ACAD BRAS CIENC 2021; 93:e20191024. [PMID: 34787166 DOI: 10.1590/0001-3765202120191024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 02/14/2020] [Indexed: 11/21/2022] Open
Abstract
Until now, custom-made or commercial polyclonal antibody against only one kind of fish IgM limited application of the antibody. During our research on development of vaccine against infection of Clonorchis sinensis (C. sinensis) in several kinds of fish, we were conscious of the urgency of secondary antibody to evaluate immune effect and screen C. sinensis infection with immunological technology instead of labor-intensive and time-consuming squash or artificial digestion of fish flesh. So that, we purified IgM of grass carp, bighead carp, crucian carp, common carp and tilapia which were widely cultured freshwater fishes in most areas of China. On this basis, we generated HRP-conjunct rabbit IgG anti-fish IgMs with high titers. IgM of other freshwater fishes including oshima, yellow catfish, bream, silver carp and so on could be recognized by the IgG sensitively. Additionally, The ELISA detection displayed that the IgG could be more specific and sensitive than custom-made rabbit IgG anti-grass carp IgM. The acquirement of HRP-conjunct rabbit IgG anti-fish IgMs was the cornerstone for studying the immune system of teleost fish, developing immunoassay methods and evaluation of fish vaccine with more convenience.
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Affiliation(s)
- Xinyi Zhou
- Sun Yat-sen University, Zhongshan School of Medicine, Department of Parasitology, Guangzhou, Guangdong, People's Republic of China.,Guangzhou Xinhua University, School of Health Sciences, Guangzhou, China.,Sun Yat-sen University, Key Laboratory for Tropical Diseases Control of Ministry of Education, Guangzhou, Guangdong, People's Republic of China.,Provincial Engineering Techonology Research Center for Biological Vector Control, Guangzhou, Guangdong, People's Republic of China
| | - Hongye Jiang
- Sun Yat-sen University, Zhongshan School of Medicine, Department of Parasitology, Guangzhou, Guangdong, People's Republic of China.,Sun Yat-sen University, Key Laboratory for Tropical Diseases Control of Ministry of Education, Guangzhou, Guangdong, People's Republic of China.,Provincial Engineering Techonology Research Center for Biological Vector Control, Guangzhou, Guangdong, People's Republic of China
| | - Zeli Tang
- Sun Yat-sen University, Zhongshan School of Medicine, Department of Parasitology, Guangzhou, Guangdong, People's Republic of China.,Guangzhou Xinhua University, School of Health Sciences, Guangzhou, China.,Sun Yat-sen University, Key Laboratory for Tropical Diseases Control of Ministry of Education, Guangzhou, Guangdong, People's Republic of China.,Guangxi Medical University, School of Pre-clinical Medicine, Department of Cell Biology and Genetics Nanning, PR China
| | - Hengchang Sun
- Sun Yat-sen University, Zhongshan School of Medicine, Department of Parasitology, Guangzhou, Guangdong, People's Republic of China.,Guangzhou Xinhua University, School of Health Sciences, Guangzhou, China.,Sun Yat-sen University, Key Laboratory for Tropical Diseases Control of Ministry of Education, Guangzhou, Guangdong, People's Republic of China.,The Third Affiliated Hospital, Department of Laboratory Medicine, Sun Yat-sen University, Guangzhou, China
| | - Zhipeng Lin
- Sun Yat-sen University, Zhongshan School of Medicine, Department of Parasitology, Guangzhou, Guangdong, People's Republic of China.,Sun Yat-sen University, Key Laboratory for Tropical Diseases Control of Ministry of Education, Guangzhou, Guangdong, People's Republic of China.,Provincial Engineering Techonology Research Center for Biological Vector Control, Guangzhou, Guangdong, People's Republic of China
| | - Qing Bian
- Sun Yat-sen University, Zhongshan School of Medicine, Department of Parasitology, Guangzhou, Guangdong, People's Republic of China.,Sun Yat-sen University, Key Laboratory for Tropical Diseases Control of Ministry of Education, Guangzhou, Guangdong, People's Republic of China.,Provincial Engineering Techonology Research Center for Biological Vector Control, Guangzhou, Guangdong, People's Republic of China
| | - Guanqun Yao
- Sun Yat-sen University, Zhongshan School of Medicine, Department of Parasitology, Guangzhou, Guangdong, People's Republic of China.,Sun Yat-sen University, Key Laboratory for Tropical Diseases Control of Ministry of Education, Guangzhou, Guangdong, People's Republic of China.,Provincial Engineering Techonology Research Center for Biological Vector Control, Guangzhou, Guangdong, People's Republic of China
| | - Tianyou Zhang
- Sun Yat-sen University, Zhongshan School of Medicine, Department of Parasitology, Guangzhou, Guangdong, People's Republic of China.,Sun Yat-sen University, Key Laboratory for Tropical Diseases Control of Ministry of Education, Guangzhou, Guangdong, People's Republic of China.,Provincial Engineering Techonology Research Center for Biological Vector Control, Guangzhou, Guangdong, People's Republic of China
| | - Meicheng Chen
- Sun Yat-sen University, Zhongshan School of Medicine, Department of Parasitology, Guangzhou, Guangdong, People's Republic of China.,Sun Yat-sen University, Key Laboratory for Tropical Diseases Control of Ministry of Education, Guangzhou, Guangdong, People's Republic of China.,Provincial Engineering Techonology Research Center for Biological Vector Control, Guangzhou, Guangdong, People's Republic of China
| | - Weiwei Zeng
- Foshan University, School of Life Science and Engineering, Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, Foshan, China
| | - Xinbing Yu
- Sun Yat-sen University, Zhongshan School of Medicine, Department of Parasitology, Guangzhou, Guangdong, People's Republic of China.,Sun Yat-sen University, Key Laboratory for Tropical Diseases Control of Ministry of Education, Guangzhou, Guangdong, People's Republic of China.,Provincial Engineering Techonology Research Center for Biological Vector Control, Guangzhou, Guangdong, People's Republic of China
| | - Yan Huang
- Sun Yat-sen University, Zhongshan School of Medicine, Department of Parasitology, Guangzhou, Guangdong, People's Republic of China.,Sun Yat-sen University, Key Laboratory for Tropical Diseases Control of Ministry of Education, Guangzhou, Guangdong, People's Republic of China.,Provincial Engineering Techonology Research Center for Biological Vector Control, Guangzhou, Guangdong, People's Republic of China
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14
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Polymeric Nanoparticles Decorated with Monoclonal Antibodies: A New Immobilization Strategy for Increasing Lipase Activity. Catalysts 2021. [DOI: 10.3390/catal11060744] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Recent advances in nanotechnology techniques enable the production of polymeric nanoparticles with specific morphologies and dimensions and, by tailoring their surfaces, one can manipulate their characteristics to suit specific applications. In this work we report an innovative approach for the immobilization of a commercial lipase from Candida rugosa (CRL) which employs nanostructured polymeric carriers conjugated with anti-lipase monoclonal antibodies (MoAbs). MoAbs were chemically conjugated on the surface of polymeric nanoparticles and used to selectively adsorb CRL molecules. Hydrolytic enzymatic assays evidenced that such immobilization technique afforded a significant enhancement of enzymatic activity in comparison to the free enzyme.
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15
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Rincon Pabon JP, Kochert BA, Liu YH, Richardson DD, Weis DD. Protein A does not induce allosteric structural changes in an IgG1 antibody during binding. J Pharm Sci 2021; 110:2355-2361. [PMID: 33640336 DOI: 10.1016/j.xphs.2021.02.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 02/22/2021] [Accepted: 02/23/2021] [Indexed: 10/22/2022]
Abstract
Affinity chromatography is widely used for antibody purification in biopharmaceutical production. Although there is evidence suggesting that affinity chromatography might induce structural changes in antibodies, allosteric changes in structure have not been well-explored. Here, we used hydrogen exchange-mass spectrometry (HX-MS) to reveal conformational changes in the NIST mAb upon binding with a protein A (ProA) matrix. HX-MS measurements of NIST mAb bound to in-solution and resin forms of ProA revealed regions of the CH2 and CH3 domains with increased protection from HX upon ProA binding, consistent with the known ProA binding region. In-solution ProA experiments revealed regions in the Fab with increased HX uptake when the ProA:mAb molar ratio was increased to 2:1, suggesting an allosterically induced increase in backbone flexibility. Such effects were not observed with lower ProA concentration (1:1 molar ratio) or when ProA resin was used, suggesting some kind of change in binding mode. Since all pharmaceutical processes use ProA bound to resin, our results rule out reversible allosteric effects on the NIST mAb during interaction with resin ProA. However, irreversible effects cannot be ruled out since the NIST mAb was previously exposed to ProA during its original purification.
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Affiliation(s)
- Juan P Rincon Pabon
- Department of Chemistry and the Ralph N. Adams Institute for Bioanalytical Chemistry, University of Kansas, Lawrence, KS, United States
| | - Brent A Kochert
- Analytical Research & Development Mass Spectrometry, Merck & Co., Inc., Kenilworth, NJ, USA
| | - Yan-Hui Liu
- Analytical Research & Development Mass Spectrometry, Merck & Co., Inc., Kenilworth, NJ, USA
| | - Douglas D Richardson
- Analytical Research & Development Mass Spectrometry, Merck & Co., Inc., Kenilworth, NJ, USA
| | - David D Weis
- Department of Chemistry and the Ralph N. Adams Institute for Bioanalytical Chemistry, University of Kansas, Lawrence, KS, United States.
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16
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Dietrich MA, Adamek M, Jung-Schroers V, Rakus K, Chadzińska M, Hejmej A, Hliwa P, Bilińska B, Karol H, Ciereszko A. Characterization of carp seminal plasma Wap65-2 and its participation in the testicular immune response and temperature acclimation. Vet Res 2020; 51:142. [PMID: 33239112 PMCID: PMC7688007 DOI: 10.1186/s13567-020-00858-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 10/13/2020] [Indexed: 11/10/2022] Open
Abstract
Two functionally distinct isoforms of warm-temperature acclimation related 65-kDa protein (Wap65-1 and Wap65-2) with a role in the immune response are present in fish. To our knowledge, contrary to Wap65-1, Wap65-2 has neither been isolated nor functionally characterized in carp especially in reproductive system. The aim of this study was to characterize Wap65-2 and ascertain its functions in immune response and temperature acclimation within reproductive system. Wap65-2 corresponded to one of the most abundant proteins in carp seminal plasma, with a high immunologic similarity to their counterparts in seminal plasma of other fish species and a wide tissue distribution, with predominant expression in the liver. The immunohistochemical localization of Wap65-2 to spermatogonia, Leydig cells, and the epithelium of blood vessels within the testis suggests its role in iron metabolism during spermatogenesis and maintenance of blood-testis barrier integrity. Wap65-2 secretion by the epithelial cells of the spermatic duct and its presence around spermatozoa suggests its involvement in the protection of spermatozoa against damage caused by heme released from erythrocytes following hemorrhage and inflammation. Our results revealed an isoform-specific response of Wap65 to temperature acclimation and Aeromonas salmonicida infection which alters blood-testis barrier integrity. Wap65-2 seems to be related to the immune response against bacteria, while Wap65-1 seems to be involved in temperature acclimation. This study expands the understanding of the mechanism of carp testicular immunity against bacterial challenge and temperature changes, in which Wap65-2 seems to be involved and highlights their potential usefulness as biomarkers of inflammation and temperature acclimation.
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Affiliation(s)
- Mariola A Dietrich
- Department of Gamete and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748, Olsztyn, Poland.
| | - Mikołaj Adamek
- Fish Disease Research Unit, Institute for Parasitology, University of Veterinary Medicine Hannover, Buenteweg 17, 30559, Hannover, Germany
| | - Verena Jung-Schroers
- Fish Disease Research Unit, Institute for Parasitology, University of Veterinary Medicine Hannover, Buenteweg 17, 30559, Hannover, Germany
| | - Krzysztof Rakus
- Department of Evolutionary Immunology, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University, Gronostajowa 9, 30-387, Krakow, Poland
| | - Magdalena Chadzińska
- Department of Evolutionary Immunology, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University, Gronostajowa 9, 30-387, Krakow, Poland
| | - Anna Hejmej
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University, 30-387, Krakow, Poland
| | - Piotr Hliwa
- Department of Ichthyology and Aquaculture, University of Warmia and Mazury in Olsztyn, Warszawska 117A, 10-701, Olsztyn, Poland
| | - Barbara Bilińska
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University, 30-387, Krakow, Poland
| | - Halina Karol
- Department of Gamete and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748, Olsztyn, Poland
| | - Andrzej Ciereszko
- Department of Gamete and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748, Olsztyn, Poland
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17
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Mullerpatan A, Kane E, Ghosh R, Nascimento A, Andersen H, Cramer S, Karande P. Single-step purification of a small non-mAb biologic by peptide-ELP-based affinity precipitation. Biotechnol Bioeng 2020; 117:3775-3784. [PMID: 32813285 DOI: 10.1002/bit.27539] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 08/06/2020] [Accepted: 08/07/2020] [Indexed: 12/12/2022]
Abstract
Affinity precipitation using stimulus-responsive biopolymers such as elastin-like polypeptides (ELPs) have been successfully employed for the purification of monoclonal antibodies. In the current work, we extend these studies to the development of an ELP-peptide fusion for the affinity precipitation of the therapeutically relevant small non-mAb biologic, AdP. A 12-mer affinity peptide ligand (P10) was identified by a primary phage biopanning followed by a secondary in-solution fluorescence polarization screen. Peptide P10 and AdP interacted with a KD of 19.5 µM. A fusion of P10 with ELP was then shown to be successful in selectively capturing the biologic from a crude mixture. While pH shifts alone were not sufficient for product elution, the use of pH in concert with fluid-phase modifiers such as NaCl, arginine, or ethylene glycol was effective. In particular, the use of pH 8.5 and an arginine concentration of 500 mM enabled >80% product recovery. The overall process performance evaluated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and reversed-phase ultra-performance liquid chromatography analyses indicated successful single-step purification of the biologic from an Escherichia coli lysate resulting in ∼90% purity and >80% recovery. These results demonstrate that phage display can be readily employed to identify a peptide ligand capable of successfully carrying out the purification of a non-antibody biological product using ELP-based affinity precipitation.
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Affiliation(s)
- Akshat Mullerpatan
- The Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York.,Center for Biotechnology and Interdisciplinary Studies (CBIS), Rensselaer Polytechnic Institute, Troy, New York
| | - Erin Kane
- The Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York.,Center for Biotechnology and Interdisciplinary Studies (CBIS), Rensselaer Polytechnic Institute, Troy, New York
| | - Ronit Ghosh
- The Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York.,Center for Biotechnology and Interdisciplinary Studies (CBIS), Rensselaer Polytechnic Institute, Troy, New York
| | - André Nascimento
- Center for Biotechnology and Interdisciplinary Studies (CBIS), Rensselaer Polytechnic Institute, Troy, New York.,iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Henrik Andersen
- Biologics Development, Global Product Development and Supply, Bristol Myers Squibb Company, Devens, Massachusetts
| | - Steven Cramer
- The Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York.,Center for Biotechnology and Interdisciplinary Studies (CBIS), Rensselaer Polytechnic Institute, Troy, New York
| | - Pankaj Karande
- The Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York.,Center for Biotechnology and Interdisciplinary Studies (CBIS), Rensselaer Polytechnic Institute, Troy, New York
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18
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An J, Kim S, Shrinidhi A, Kim J, Banna H, Sung G, Park KM, Kim K. Purification of protein therapeutics via high-affinity supramolecular host-guest interactions. Nat Biomed Eng 2020; 4:1044-1052. [PMID: 32690883 DOI: 10.1038/s41551-020-0589-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 06/22/2020] [Indexed: 01/10/2023]
Abstract
Efficient purification is crucial to providing large quantities of recombinant therapeutic proteins, such as monoclonal antibodies and cytokines. However, affinity techniques for manufacturing protein therapeutics that use biomolecule-conjugated agarose beads that harness specific biomolecular interactions suffer from issues related to protein denaturation, contamination and the need to maintain biomolecule-specific conditions for efficient protein capture. Here, we report a versatile and scalable method for the purification of recombinant protein therapeutics. The method exploits the high-affinity and controllable host-guest interactions between cucurbit[7]uril (CB[7]) and selected guests such as adamantylammonium. We show that the Herceptin (the brand name of trastuzumab, a monoclonal antibody drug used to treat breast cancer) and the much smaller cytokine interferon α-2a can be purified by site-specifically tagging them with adamantylammonium using the enzyme sortase A, followed by high-affinity binding with CB[7]-conjugated agarose beads and the recovery of the protein using a guest with a stronger affinity for CB[7]. The thermal and chemical stability of CB[7] beads and their scalability, recyclability and low cost may also make them advantageous for the manufacturing of biosimilars.
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Affiliation(s)
- Jaeyeon An
- Center for Self-Assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, Republic of Korea.,Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
| | - Sungwan Kim
- Center for Self-Assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, Republic of Korea
| | - Annadka Shrinidhi
- Center for Self-Assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, Republic of Korea
| | - Junghyun Kim
- Center for Self-Assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, Republic of Korea
| | - Hasanul Banna
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
| | - Gihyun Sung
- Center for Self-Assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, Republic of Korea
| | - Kyeng Min Park
- Center for Self-Assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, Republic of Korea.
| | - Kimoon Kim
- Center for Self-Assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, Republic of Korea. .,Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea. .,School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea.
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19
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Pourrostam-Ravadanaq P, Safa KD, Abbasi H. Study of imidazole performance as pseudo-affinity ligand in the purification of IgG from bovine milk. Anal Biochem 2020; 597:113693. [PMID: 32201137 DOI: 10.1016/j.ab.2020.113693] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 03/13/2020] [Accepted: 03/18/2020] [Indexed: 11/17/2022]
Abstract
The spherical sepharose CL-6B beads were activated by epichlorohydrin in different epoxy contents (80, 120 and 160 μmolepoxide/mLgel) and, l-histidine and imidazole as pseudo-affinity ligands were covalently immobilized to them. Some linkers with different length, (1,2-ethanediol diglycidyl ether and 1,4-butanediol diglycidyl ether) were synthesized for activation of sepharose and the activated sepharose beads modified with imidazole and the performance of these adsorbents in the purification of immunoglobulin G from bovine milk were evaluated. Among the l-histidine bearing adsorbents, higher adsorption of IgG (0.28 mg/mL) was obtained by adsorbent with the lower concentration of l-histidine. The highest amount of IgG adsorption (0.53 mg/mL) was obtained by imidazole bearing adsorbent with the highest amount of imidazole and Among the adsorbents with synthesized linkers, the adsorbent with 1,2-ethanediol diglycidyl ether showed better performance and was able to purify 0.25 mg/mL IgG with high purity. The synthesized pseudo-affinity adsorbents represented the abbility to purify immunoglobulin G in one-step process with high purity and efficiency.
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Affiliation(s)
| | - Kazem D Safa
- Department of Organic Chemistry and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.
| | - Hassan Abbasi
- Department of Organic Chemistry and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
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20
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Goussen C, Goldstein L, Brèque C, You B, Boyer S, Bataille D, Burlot L. Viral clearance capacity by continuous Protein A chromatography step using Sequential MultiColumn Chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1145:122056. [PMID: 32315973 DOI: 10.1016/j.jchromb.2020.122056] [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: 09/18/2019] [Revised: 03/06/2020] [Accepted: 03/09/2020] [Indexed: 10/24/2022]
Abstract
In response to the strong demand of biological protein therapeutics, such as monoclonal antibodies (MAbs), continuous downstream process was developed to deliver these molecules while maintaining desired product consistency and quality attributes, and providing manufacturing efficiency and flexibility. Viral safety is a critical quality attribute for biopharmaceuticals, such as MAbs. Evaluation of the viral clearance by the downstream process is a key component of risk mitigation. Protein A chromatography is typically used as an initial capture step for MAbs and efficient for the removal of process-related impurities like Host Cell Proteins (HCP). This step can also contribute to the clearance of potential viral contaminants. Murine Minute Virus (MMV)-spiking experiments were performed at small scale to investigate the impact on the viral clearance efficiency of the way the Protein A chromatography step is carried out, whether in batch or multicolumn mode. Protein A chromatography step using Novasep Sequential MultiColumn Chromatography (SMCC) technology demonstrated no statistical difference in the viral reduction with reduction factor (RF) of 3.7 log10 (vs. RF of 3.8 log10 for batch). The experiments showed also similar viral distribution over the purification cycles and columns. Data confirmed that the viral clearance capacity by the continuous Protein A chromatography step using SMCC technology is maintained and efficient.
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Affiliation(s)
- Caroline Goussen
- LFB Biotechnologies, Direction Générale du Développement, 3 avenue des Tropiques, 91940 Les Ulis, France.
| | - Laëtitia Goldstein
- LFB Biotechnologies, Direction Générale du Développement, 3 avenue des Tropiques, 91940 Les Ulis, France
| | - Corinne Brèque
- LFB Biotechnologies, Direction Générale du Développement, 3 avenue des Tropiques, 91940 Les Ulis, France
| | - Bruno You
- LFB Biotechnologies, Direction Générale du Développement, 3 avenue des Tropiques, 91940 Les Ulis, France
| | - Stéphane Boyer
- LFB Biotechnologies, Direction Générale du Développement, 3 avenue des Tropiques, 91940 Les Ulis, France
| | - Damien Bataille
- LFB Biotechnologies, Direction Générale du Développement, 3 avenue des Tropiques, 91940 Les Ulis, France
| | - Ludovic Burlot
- LFB Biotechnologies, Direction Générale du Développement, 3 avenue des Tropiques, 91940 Les Ulis, France
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21
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Rosenstein S, Vaisman-Mentesh A, Levy L, Kigel A, Dror Y, Wine Y. Production of F(ab') 2 from Monoclonal and Polyclonal Antibodies. ACTA ACUST UNITED AC 2020; 131:e119. [PMID: 32319727 DOI: 10.1002/cpmb.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Antibodies are widely used in therapeutic, diagnostic, and research applications, and antibody derivatives such as F(ab')2 fragments are used when only a particular antibody region is required. F(ab')2 can be produced through antibody engineering, but some applications require F(ab')2 produced from an original formulated antibody or directly from a polyclonal antibody pool. The cysteine protease immunoglobulin-degrading enzyme (IdeS) from Streptococcus pyogenes digests immunoglobulin G (IgG) specifically and efficiently to produce F(ab')2 . Here we detail the production and purification of recombinant IdeS; its utilization to digest monoclonal or polyclonal antibodies to F(ab')2 fragments; and F(ab')2 purification through consecutive affinity chromatography steps. The resultant F(ab')2 exhibit high purity, retain antigen-binding functionality, and are readily utilizable in various downstream applications. © 2020 by John Wiley & Sons, Inc. Basic Protocol: Production and purification of F(ab')2 fragments from monoclonal and polyclonal antibodies using IdeS Alternate Protocol: Purification of polyclonal antigen-specific F(ab')2 fragments from human serum or secretions Support Protocol: Production and purification of IdeS.
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Affiliation(s)
- Shai Rosenstein
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv, Israel
| | - Anna Vaisman-Mentesh
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv, Israel
| | - Limor Levy
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv, Israel
| | - Aya Kigel
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv, Israel
| | - Yael Dror
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv, Israel
| | - Yariv Wine
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv, Israel
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22
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Brämer C, Tünnermann L, Gonzalez Salcedo A, Reif OW, Solle D, Scheper T, Beutel S. Membrane Adsorber for the Fast Purification of a Monoclonal Antibody Using Protein A Chromatography. MEMBRANES 2019; 9:E159. [PMID: 31783640 PMCID: PMC6950724 DOI: 10.3390/membranes9120159] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 11/21/2019] [Accepted: 11/25/2019] [Indexed: 01/20/2023]
Abstract
Monoclonal antibodies are conquering the biopharmaceutical market because they can be used to treat a variety of diseases. Therefore, it is very important to establish robust and optimized processes for their production. In this article, the first step of chromatography (Protein A chromatography) in monoclonal antibody purification was optimized with a focus on the critical elution step. Therefore, different buffers (citrate, glycine, acetate) were tested for chromatographic performance and product quality. Membrane chromatography was evaluated because it promises high throughputs and short cycle times. The membrane adsorber Sartobind® Protein A 2 mL was used to accelerate the purification procedure and was further used to perform a continuous chromatographic run with a four-membrane adsorber-periodic counter-current chromatography (4MA-PCCC) system. It was found that citrate buffer at pH 3.5 and 0.15 M NaCl enabled the highest recovery of >95% and lowest total aggregate content of 0.26%. In the continuous process, the capacity utilization of the membrane adsorber was increased by 20%.
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Affiliation(s)
- Chantal Brämer
- Institute of Technical Chemistry, Callinstraße 5, 30167 Hannover, Germany (L.T.); (A.G.S.); (D.S.); (T.S.)
| | - Lisa Tünnermann
- Institute of Technical Chemistry, Callinstraße 5, 30167 Hannover, Germany (L.T.); (A.G.S.); (D.S.); (T.S.)
| | - Alina Gonzalez Salcedo
- Institute of Technical Chemistry, Callinstraße 5, 30167 Hannover, Germany (L.T.); (A.G.S.); (D.S.); (T.S.)
| | - Oscar-Werner Reif
- Sartorius Stedim Biotech, August-Spindler-Straße 11, 37079 Göttingen, Germany;
| | - Dörte Solle
- Institute of Technical Chemistry, Callinstraße 5, 30167 Hannover, Germany (L.T.); (A.G.S.); (D.S.); (T.S.)
| | - Thomas Scheper
- Institute of Technical Chemistry, Callinstraße 5, 30167 Hannover, Germany (L.T.); (A.G.S.); (D.S.); (T.S.)
| | - Sascha Beutel
- Institute of Technical Chemistry, Callinstraße 5, 30167 Hannover, Germany (L.T.); (A.G.S.); (D.S.); (T.S.)
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23
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Maso K, Montagner IM, Grigoletto A, Schiavon O, Rosato A, Pasut G. A non-covalent antibody complex for the delivery of anti-cancer drugs. Eur J Pharm Biopharm 2019; 142:49-60. [PMID: 31201855 DOI: 10.1016/j.ejpb.2019.06.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 06/11/2019] [Accepted: 06/12/2019] [Indexed: 10/26/2022]
Abstract
Antibody drug conjugates (ADCs), which are obtained by coupling a potent cytotoxic agent to a monoclonal antibody (mAb), are traditionally bound in a random way to lysine or cysteine residues, with the final product's heterogeneity having an important impact on their activity, characterization, and manufacturing. A new antibody drug delivery system (ADS) based on a non-covalent linkage between a Fc-binding protein, in this case Protein A or Protein G, and a mAb was investigated in the effort to achieve greater homogeneity and to create a versatile and adaptable drug delivery system. Recombinant staphylococcal Protein A and streptococcal Protein G were chemically PEGylated at the N-terminus with a 5 kDa and a 20 kDa PEG, respectively, yielding two monoconjugates with a mass of ≈50 and ≈45 kDa. Circular dichroism studies showed that both conjugates preserved secondary structures of the protein, and isothermal titration calorimetry experiments demonstrated that their affinity for mAb was approximately 107 M-1. Upon complexation with a mAb (Trastuzumab or Rituximab), in vitro flow-cytometry analysis of the new ADSs showed high selectivity for the specific antigen expressing cells. In addition, the ADS complex based on Trastuzumab and Protein G, conjugated with a heterobifunctional 20 kDa PEG carrying the toxin Tubulysin A, had a marked cytotoxic effect on the cancer cell line overexpressing the HER2/neu receptor, thus supporting its application in cancer therapy.
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Affiliation(s)
- Katia Maso
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131 Padova, Italy
| | | | - Antonella Grigoletto
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131 Padova, Italy
| | - Oddone Schiavon
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131 Padova, Italy
| | - Antonio Rosato
- Veneto Institute of Oncology IOV-IRCCS, Padua, Italy; Department of Surgery, Oncology and Gastroenterology, University of Padova, Via Gattamelata 64, 35128 Padova, Italy.
| | - Gianfranco Pasut
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131 Padova, Italy; Veneto Institute of Oncology IOV-IRCCS, Padua, Italy.
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24
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Islam MR, Kwak J, Lee J, Hong S, Khan MRI, Lee Y, Lee Y, Lee S, Hwang I. Cost-effective production of tag-less recombinant protein in Nicotiana benthamiana. PLANT BIOTECHNOLOGY JOURNAL 2019; 17:1094-1105. [PMID: 30468023 PMCID: PMC6523591 DOI: 10.1111/pbi.13040] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 11/02/2018] [Accepted: 11/04/2018] [Indexed: 05/03/2023]
Abstract
Plants have recently received a great deal of attention as a means of producing recombinant proteins. Despite this, a limited number of recombinant proteins are currently on the market and, if plants are to be more widely used, a cost-effective and efficient purification method is urgently needed. Although affinity tags are convenient tools for protein purification, the presence of a tag on the recombinant protein is undesirable for many applications. A cost-effective method of purification using an affinity tag and the removal of the tag after purification has been developed. The family 3 cellulose-binding domain (CBM3), which binds to microcrystalline cellulose, served as the affinity tag and the small ubiquitin-related modifier (SUMO) and SUMO-specific protease were used to remove it. This method, together with size-exclusion chromatography, enabled purification of human interleukin-6 (hIL6) with a yield of 18.49 mg/kg fresh weight from leaf extracts of Nicotiana benthamiana following Agrobacterium-mediated transient expression. Plant-produced hIL6 (P-hIL6) contained less than 0.2 EU/μg (0.02 ng/mL) endotoxin. P-hIL6 activated the Janus kinase-signal transducer and activator of transcriptional pathways in human LNCaP cells, and induced expression of IL-21 in activated mouse CD4+ T cells. This approach is thus a powerful method for producing recombinant proteins in plants.
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Affiliation(s)
- Md Reyazul Islam
- Division of Integrative Biosciences and BiotechnologyPohang University of Science and TechnologyPohangKorea
| | - Ju‐Won Kwak
- Division of Integrative Biosciences and BiotechnologyPohang University of Science and TechnologyPohangKorea
| | - Jeon‐soo Lee
- Department of Life SciencePohang University of Science and TechnologyPohangKorea
| | - Sung‐Wook Hong
- Department of Life SciencePohang University of Science and TechnologyPohangKorea
| | - Md Rezaul Islam Khan
- Division of Integrative Biosciences and BiotechnologyPohang University of Science and TechnologyPohangKorea
| | - Yongjik Lee
- Division of Integrative Biosciences and BiotechnologyPohang University of Science and TechnologyPohangKorea
| | - Yoontae Lee
- Department of Life SciencePohang University of Science and TechnologyPohangKorea
| | - Seung‐Woo Lee
- Department of Life SciencePohang University of Science and TechnologyPohangKorea
| | - Inhwan Hwang
- Division of Integrative Biosciences and BiotechnologyPohang University of Science and TechnologyPohangKorea
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Großhans S, Suhm S, Hubbuch J. Precipitation of complex antibody solutions: influence of contaminant composition and cell culture medium on the precipitation behavior. Bioprocess Biosyst Eng 2019; 42:1039-1051. [PMID: 30887102 PMCID: PMC6527789 DOI: 10.1007/s00449-019-02103-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 03/06/2019] [Indexed: 12/20/2022]
Abstract
Preparative protein precipitation is known as a cost-efficient and easy-to-use alternative to chromatographic purification steps. This said, at the moment, there is no process for monoclonal antibodies (mAb) on the market, although especially polyethylene glycol-induced precipitation has shown great potential. One reason might be the highly complex behavior of each component of a crude feedstock during the precipitation process. For different investigated mAbs, significant variations in the host cell protein (HCP) reduction are observed. In contrast to the precipitation behavior of single components, the interactions and interplay in a complex feedstock are not fully understood yet. This work discusses the influence of contaminants on the precipitation behavior of two different mAbs, an IgG1, and an IgG2. By spiking the mAbs with mock solution, a complex feedstock could successfully be mimicked. Spiking contaminants influenced the yield and purity of the mAbs after the precipitation step, compared to the precipitation behavior of the single components. The mixture showed a decrease in the contaminant and mAb solubility. By re-buffering the mock solution prior to spiking, special salts, small molecules like amino acids, vitamins, or sugars could be depleted while larger ones like HCP or DNA were still present. Therefore, it was possible to distinguish the influence of small molecules and larger ones. Hence, mAb-macromolecular interaction could be identified as a possible reason for the observed higher precipitation propensity, while small molecules of the cell culture medium were identified as solubilisation factors during the precipitation process.
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Affiliation(s)
- Steffen Großhans
- Institute of Process Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
| | - Susanna Suhm
- Institute of Process Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
| | - Jürgen Hubbuch
- Institute of Process Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
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26
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Chen YJ, Chen M, Cheng TL, Roffler SR, Lin SY, Hsu HL, Wang CH, Chen CY, Kao AP, Cheng JJ, Chuang KH. Simply Mixing Poly Protein G with Detection Antibodies Enhances the Detection Limit and Sensitivity of Immunoassays. Anal Chem 2019; 91:8310-8317. [DOI: 10.1021/acs.analchem.9b01077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
| | | | - Tian-Lu Cheng
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Steve R. Roffler
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Shyr-Yi Lin
- Department of Primary Care Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | | | | | | | - An-Pei Kao
- Stemforce Biotechnology Co., Ltd, Chiayi City, Taiwan
| | - Jing-Jy Cheng
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan
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27
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Zhou F, Kroetsch A, Nguyen VP, Huang X, Ogoke O, Parashurama N, Park S. High-Affinity Antibody Detection with a Bivalent Circularized Peptide Containing Antibody-Binding Domains. Biotechnol J 2019; 14:e1800647. [PMID: 30810268 DOI: 10.1002/biot.201800647] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 01/27/2019] [Indexed: 11/05/2022]
Abstract
Direct chemical labeling of antibody produces molecules with poorly defined modifications. Use of a small antibody-binding protein as an adapter can simplify antibody functionalization by forming a specific antibody-bound complex and introducing site-specific modifications. To stabilize a noncovalent antibody complex that may be used without chemical crosslinking, a bivalent antibody-binding protein is engineered with an improved affinity of interaction by joining two Z domains with a conformationally flexible linker. The linker is essential for the increase in affinity because it allows simultaneous binding of both domains. The molecule is further circularized using a split intein, creating a novel adapter protein ("lasso"), which binds human immunoglobulin G1 (IgG1) with K D = 0.53 n m and a dissociation rate that is 55- to 84-fold slower than Z. The lasso contains a unique cysteine for conjugation with a reporter and may be engineered to introduce other functional groups, including a biotin tag and protease recognition sequences. When used in enzyme-linked immunosorbent assay (ELISA), the lasso generates a stronger reporter signal compared to a secondary antibody and lowers the limit of detection by 12-fold. The small size of the lasso and a long half-life of dissociation make the peptide a useful tool in antibody detection and immobilization.
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Affiliation(s)
- Fangyu Zhou
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY, 14260, USA
| | - Andrew Kroetsch
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY, 14260, USA
| | - Vyncent P Nguyen
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY, 14260, USA
| | - Xiao Huang
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY, 14260, USA
| | - Ogechi Ogoke
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY, 14260, USA
| | - Natesh Parashurama
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY, 14260, USA
| | - Sheldon Park
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY, 14260, USA
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28
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Bilal S, Lie KK, Dalum AS, Karlsen OA, Hordvik I. Analysis of immunoglobulin and T cell receptor gene expression in ballan wrasse (Labrus bergylta) revealed an extraordinarily high IgM expression in the gut. FISH & SHELLFISH IMMUNOLOGY 2019; 87:650-658. [PMID: 30753920 DOI: 10.1016/j.fsi.2019.02.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 01/21/2019] [Accepted: 02/06/2019] [Indexed: 06/09/2023]
Abstract
The serum IgM concentration of ballan wrasse is relatively high, estimated to approximately 13 mg/ml in adult wild fish of 800 g. The present study revealed an unusual high abundance of IgM mRNA in the gut of ballan wrasse. Initially, transcripts encoding IgM, IgT, IgD, TCRα, TCRδ and CD3ε were quantified by RT-qPCR in several tissues of wild caught fish (approx. 800 g), indicating an elevated immune activity in hindgut and an extraordinarily high expression of IgM. Subsequently, a new RT-qPCR analysis was performed on the entire intestine, cut into four different segments, of reared fish (32-100 g). The analysis indicated immune activity along the entire intestine, but not as strong as in the hindgut. Furthermore, similar to the larger fish, the relative abundance of IgM transcripts was higher in the hindgut than in kidney and spleen, although the absolute level of IgM was in general higher in the larger fish. The secreted form of IgM was completely dominant in comparison to the membrane bound form of IgM and the other analysed genes. IgM was purified from gut mucus and external mucosal surfaces by magnetic beads coated with protein A. Mucus IgM reacted with rabbit antisera raised against serum IgM and contained subunits of the same size. Regarding the elevated immune activity in the intestine it is tempting to speculate on a possible compensatory strategy in this lineage of stomach-less fish, and that natural antibodies have an important role in the first line defence.
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Affiliation(s)
- Sumaira Bilal
- Department of Biological Sciences, University of Bergen, Norway
| | | | | | | | - Ivar Hordvik
- Department of Biological Sciences, University of Bergen, Norway.
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29
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da Silva Santos JH, da Silva GH, Iamamoto K, Katz ISS, Guedes F, Fernandes ER, de Cassia Rodrigues da Silva A, Dos Ramos Silva S. Purification of IgG against ribonucleoprotein by a homemade immunoaffinity chromatography column for rabies diagnosis. J Immunol Methods 2019; 471:1-10. [PMID: 30904384 DOI: 10.1016/j.jim.2019.03.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 03/08/2019] [Accepted: 03/19/2019] [Indexed: 11/29/2022]
Abstract
Polyclonal or monoclonal antibodies against rabies virus ribonucleoprotein (RNP) conjugated to fluorescein isothiocyanate (FITC) have been employed for Rabies virus (RABV) antigen detection by the direct fluorescent antibody test (DFA). To date, these biomolecules have been purified by traditional methods such as precipitation by ammonium sulfate or ion exchange chromatography followed by ammonium sulfate precipitation, which allows only for partial detection of the protein of interest. In this study, we aimed to purify anti-RNP polyclonal horse IgG antibodies by cation-exchange chromatography in combination with a homemade immunoaffinity chromatography on RNP immobilized (RNP-IAC). Furthermore, to evaluate the accuracy of the prepared anti-RNP IgG fluorescent antibody in diagnostic purposes, DFA was applied for RABV antigen detection in suspected brain samples of different animal species. The combination of these two techniques made it possible to obtain antibodies with high selectivity and purity. Compared with the performance of the traditional method, anti-RNP IgG antibodies purified by RNP-IAC can be obtained from a smaller volume of hyperimmune serum and with greater avidity. Furthermore, the results obtained by DFA analyses revealed that the prepared anti-RNP IgG fluorescent antibody achieved 100% diagnostic specificity and sensitivity for RABV antigen detection. Thus, two-technique chromatographic, including RNP-IAC technology could be appropriate methods for the purification of polyclonal anti-RNP IgG for the use as a diagnostic reagent for rabies.
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Development of a highly sensitive enzyme-linked immunosorbent assay (ELISA) through use of poly-protein G-expressing cell-based microplates. Sci Rep 2018; 8:17868. [PMID: 30552393 PMCID: PMC6294806 DOI: 10.1038/s41598-018-36192-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 11/05/2018] [Indexed: 02/03/2023] Open
Abstract
The sensitivity of traditional enzyme-linked immunosorbent assays (ELISAs) is limited by the low binding avidity and heterogeneous orientation of capture antibodies coated on polystyrene-based microplates. Here, we developed a highly sensitive ELISA strategy by fixing poly-protein G-expressing cells on microplates to improve the coating amount and displayed orientation of capture antibodies. One or eight repeated fragment crystallisable (Fc) binding domains of protein G are stably expressed on the surface of BALB/c 3T3 cells (termed 1pG cells or 8pG cells), which then act as highly antibody-trapping microparticles. The 8pG cells showed higher antibody-trapping ability than the 1pG cells did. The antibody-coating amount of the 8pG cell-based microplates was 1.5–23 times and 1.2–6.8 times higher than that of traditional polystyrene-based and commercial protein G-based microplates, respectively. The 8pG cell-based microplates were then applied to an anti-IFN-α sandwich ELISA and an anti-CTLA4 competitive ELISA, respectively, and dramatically enhanced their detection sensitivity. Importantly, direct coating unpurified capture antibody produced by mammalian cells did not impair the antigen-capturing function of 8pG cell-based microplates. The 8pG cell-based microplates exhibited a significant improvement in antibody-coating amount and preserved the homogeneous orientation of capture antibodies, making them a potential replacement for traditional microplates in various formats of ELISAs.
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31
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Covalent Immobilization of Protein A on Chitosan and Aldehyde Double-Branched Chitosan as Biocompatible Carriers for Immunoglobulin G (Igg) Purification. J Chromatogr Sci 2018; 56:933-940. [DOI: 10.1093/chromsci/bmy070] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 06/16/2018] [Indexed: 11/14/2022]
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32
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Campuzano S, Yáñez-Sedeño P, Pingarrón JM. Tailoring Sensitivity in Electrochemical Nucleic Acid Hybridization Biosensing: Role of Surface Chemistry and Labeling Strategies. ChemElectroChem 2018. [DOI: 10.1002/celc.201800667] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Susana Campuzano
- Departamento de Química Analítica, Facultad de CC. Químicas; Universidad Complutense de Madrid; E-28040 Madrid Spain
| | - Paloma Yáñez-Sedeño
- Departamento de Química Analítica, Facultad de CC. Químicas; Universidad Complutense de Madrid; E-28040 Madrid Spain
| | - José Manuel Pingarrón
- Departamento de Química Analítica, Facultad de CC. Químicas; Universidad Complutense de Madrid; E-28040 Madrid Spain
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Li Y, Lock LL, Wang Y, Ou SH, Stern D, Schön A, Freire E, Xu X, Ghose S, Li ZJ, Cui H. Bioinspired supramolecular engineering of self-assembling immunofibers for high affinity binding of immunoglobulin G. Biomaterials 2018; 178:448-457. [PMID: 29706234 DOI: 10.1016/j.biomaterials.2018.04.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 04/11/2018] [Accepted: 04/14/2018] [Indexed: 01/14/2023]
Abstract
Many one-dimensional (1D) nanostructures are constructed by self-assembly of peptides or peptide conjugates containing a short β-sheet sequence as the core building motif essential for the intermolecular hydrogen bonding that promotes directional, anisotropic growth of the resultant assemblies. While this molecular engineering strategy has led to the successful production of a plethora of bioactive filamentous β-sheet assemblies for interfacing with biomolecules and cells, concerns associated with effective presentation of α-helical epitopes and their function preservation have yet to be resolved. In this context, we report on the direct conjugation of the protein A mimicking peptide Z33, a motif containing two α-helices, to linear hydrocarbons to create self-assembling immuno-amphiphiles (IAs). Our results suggest that the resulting amphiphilic peptides can, despite lacking the essential β-sheet segment, effectively associate under physiological conditions into supramolecular immunofibers (IFs) while preserving their native α-helical conformation. Isothermal titration calorimetry (ITC) measurements confirmed that these self-assembling immunofibers can bind to the human immunoglobulin G class 1 (IgG1) with high specificity at pH 7.4, but with significantly weakened binding at pH 2.8. We further demonstrated the accessibility of Z33 ligand in the immunofibers using transmission electron microscopy (TEM) and confocal imaging. We believe these results shed important light into the supramolecular engineering of α-helical peptides into filamentous assemblies that may possess an important potential for antibody isolation.
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Affiliation(s)
- Yi Li
- Department of Chemical and Biomolecular Engineering, and Institute for NanoBioTechnology, The Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, United States
| | - Lye Lin Lock
- Biologics Process Development, Global Product Development and Supply, Bristol-Myers Squibb, Devens, MA 01434, United States
| | - Yuzhu Wang
- Department of Chemical and Biomolecular Engineering, and Institute for NanoBioTechnology, The Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, United States
| | - Shih-Hao Ou
- Department of Chemical and Biomolecular Engineering, and Institute for NanoBioTechnology, The Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, United States
| | - David Stern
- Department of Chemical and Biomolecular Engineering, and Institute for NanoBioTechnology, The Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, United States
| | - Arne Schön
- Department of Biology, The Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, United States
| | - Ernesto Freire
- Department of Biology, The Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, United States
| | - Xuankuo Xu
- Biologics Process Development, Global Product Development and Supply, Bristol-Myers Squibb, Devens, MA 01434, United States.
| | - Sanchayita Ghose
- Biologics Process Development, Global Product Development and Supply, Bristol-Myers Squibb, Devens, MA 01434, United States
| | - Zheng Jian Li
- Biologics Process Development, Global Product Development and Supply, Bristol-Myers Squibb, Devens, MA 01434, United States
| | - Honggang Cui
- Department of Chemical and Biomolecular Engineering, and Institute for NanoBioTechnology, The Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, United States; Department of Oncology and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21205, United States.
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34
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Großhans S, Wang G, Fischer C, Hubbuch J. An integrated precipitation and ion-exchange chromatography process for antibody manufacturing: Process development strategy and continuous chromatography exploration. J Chromatogr A 2017; 1533:66-76. [PMID: 29229331 DOI: 10.1016/j.chroma.2017.12.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 12/04/2017] [Accepted: 12/05/2017] [Indexed: 12/15/2022]
Abstract
In the past decades, research was carried out to find cost-efficient alternatives to Protein A chromatography as a capture step in monoclonal antibody (mAb) purification processes. In this work, polyethylene glycol (PEG) precipitation has shown promising results in the case of mAb yield and purity. Especially with respect to continuous processing, PEG precipitation has many advantages, like low cost of goods, simple setup, easy scalability, and the option to handle perfusion reactors. Nevertheless, replacing Protein A has the disadvantage of renouncing a platform unit operation as well. Furthermore, PEG precipitation is not capable of reducing high molecular weight impurities (HMW) like aggregates or DNA. To overcome these challenges, an integrated process strategy combining PEG precipitation with cation-exchange chromatography (CEX) for purification of a mAb is presented. This work discusses the process strategy as well as the associated fast, easy, and material-saving process development platform. These were implemented through the combination of high-throughput methods with empirical and mechanistic modeling. The strategy allows the development of a common batch process. Additionally, it is feasible to develop a continuous process. In the presented case study, a mAb provided from cell culture fluid (HCCF) was purified. The precipitation and resolubilization conditions as well as the chromatography method were optimized, and the mutual influence of all steps was investigated. A mAb yield of over 95.0% and a host cell protein (HCP) reduction of over 99.0% could be shown. At the same time, the aggregate level was reduced from 3.12% to 1.20% and the DNA level was reduced by five orders of magnitude. Furthermore, the mAb was concentrated three times to a final concentration of 11.9mg/mL.
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Affiliation(s)
- Steffen Großhans
- Karlsruhe Institute of Technology (KIT), Institute of Process Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe, Germany
| | - Gang Wang
- Karlsruhe Institute of Technology (KIT), Institute of Process Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe, Germany
| | - Christian Fischer
- Karlsruhe Institute of Technology (KIT), Institute of Process Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe, Germany
| | - Jürgen Hubbuch
- Karlsruhe Institute of Technology (KIT), Institute of Process Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe, Germany.
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35
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Inomata E, Tashiro E, Miyakawa S, Nakamura Y, Akita K. Alkaline-tolerant RNA aptamers useful to purify acid-sensitive antibodies in neutral conditions. Biochimie 2017; 145:113-124. [PMID: 29104137 DOI: 10.1016/j.biochi.2017.10.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Accepted: 10/30/2017] [Indexed: 12/20/2022]
Abstract
Recently, several oligonucleotides have been launched for clinical use and a number of therapeutic oligonucleotides are under clinical trials. Aptamer is one of the oligonucleotide therapeutics and has received a lot of attention as a new technology and an efficacious pharmaceutical compound comparable to antibody. Aptamer could be used for various purposes, not only therapeutics but also diagnostics, and applicable to affinity chromatography as a carrier molecule to purify proteins of interest. Here we demonstrate the usage and advantages of RNA aptamer to Fc region of human IgG (i.e., IgG aptamer) for purification of human antibodies. IgG aptamer requires divalent cations for binding to IgG and bound IgG dissociates easily upon treatment with chelating reagent, such as EDTA, under neutral conditions. This elution step is very mild and advantageous for maintaining active conformations of therapeutic antibodies compared to the widely used affinity purification with Protein A/G, which requires acidic elution that often damages the active conformation of antibodies. In fact, of several monoclonal antibodies tested, three antibodies were prone to aggregate on acidic elution from the Protein A/G resin, while remained fully active upon neutral elution from the IgG aptamer resin. The IgG aptamer was fully manipulated to alkaline resistant by ribose 2'-modifications, and thereby reusable numerous times with 1 N NaOH washing. The capacity of the aptamer resin to bind IgG was equivalent to that of the Protein A/G resin. Therefore, the IgG aptamer will provide us with a unique tool to uncover and purify human monoclonal antibodies, which hold therapeutic potential but lose the activity upon acidic elution from Protein A/G-based affinity resin.
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Affiliation(s)
| | | | | | - Yoshikazu Nakamura
- RIBOMIC Inc., Minato-ku, Tokyo 108-0071, Japan; The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo 108-8639, Japan
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36
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Isolation of Aspartic Acid Using Novel Poly(2-hydroxyethyl methacrylate-N-methacryloyl-(l)-lysine) Cryogels. Chromatographia 2017. [DOI: 10.1007/s10337-017-3419-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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37
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Tehrani Najafian F, Bibi NS, Islam T, Fernández-Lahore M. A megaporous material harbouring a peptide ligand for affinity IgG purification. Electrophoresis 2017; 38:2914-2921. [DOI: 10.1002/elps.201700198] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 08/08/2017] [Accepted: 08/08/2017] [Indexed: 11/06/2022]
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38
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Reader PP, Shaw AM. Kinetic Analysis of the Multivalent Ligand Binding Interaction between Protein A/G and IgG: A Standard System Setting. J Phys Chem B 2017; 121:8919-8925. [PMID: 28876067 DOI: 10.1021/acs.jpcb.7b06163] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Recombinant protein A/G (PAG) has a sequence coding for eight IgG binding sites and has enhanced interspecies affinity. High-frequency sampling of a PAG titration with IgG produces concentration profiles that are sensitive to the kinetic availability of the binding sites. The full kinetic model developed here for IgG binding sequentially to PAG shows only two distinct kinetic processes, describing an initial rapid association of two antibodies to PAG with a rate constant k-fast = (1.86 ± 0.08) × 106 M-1 s-1 and a slower antibody binding process to all remaining sites, k-slow = (1.24 ± 0.05) × 104 M-1 s-1. At equilibrium (after 1 h), the maximum IgG occupancy of PAG is 2.8 ± 0.5, conflicting with the genetic evidence of eight binding sites and suggesting significant steric hindrance of the neighboring IgG binding sites. The phosphate-buffered saline (PBS) solution defines a standard system setting, and this may be compared with other settings. The mean association rate of PAG-IgGn in the standard setting is 282 ± 20% higher than when PAG is tethered to a surface. A systems biology approach requires that a model parameter set that defines a system in a standard setting should be transferable to another system. The transfer of parameters between settings may be performed using activity coefficients characterizing an effective concentration of species in a system, ai = γici. The activity correction, γ, for the eight-site occupancy is γ = 0.35 ± 0.06, and mapping from the standard setting to the solution setting suggests γPAG-IgG = 0.4 ± 0.03. The role of activity coefficients and transferability of kinetic parameters between system settings is discussed.
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Affiliation(s)
- Peter P Reader
- University of Exeter Medical School, University of Exeter College of Life and Environmental Sciences, University of Exeter , Stocker Road, Exeter, EX4 4PB, U.K
| | - Andrew M Shaw
- University of Exeter Medical School, University of Exeter College of Life and Environmental Sciences, University of Exeter , Stocker Road, Exeter, EX4 4PB, U.K
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39
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Maruyama M, Shibuya K. ε-Polylysine-based thermo-responsive adsorbents for immunoglobulin adsorption-desorption under mild conditions. Biomater Sci 2017. [PMID: 28632279 DOI: 10.1039/c7bm00390k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Thermo-responsive adsorbents for immunoglobulin G (IgG) employing ε-polylysine (EPL) as a polymer backbone were developed. The introduction of mercaptoethylpyridine (MEP) as an IgG-binding ligand and hydrophobization of side chains afforded thermo-responsive IgG adsorbents, whose thermo-responsive IgG desorption ratio was up to 88% (EPL/MEP derivative 3m). The changes in surface densities of active MEP groups, which are caused by thermal conformational changes of the adsorbents, play key roles for IgG desorption. Although a trade-off of IgG adsorption capacity and IgG desorption ratio was observed, the present study offers a novel molecular design for thermo-responsive adsorbents with high synthetic accessibility and potentially low toxicity.
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Affiliation(s)
- Masashi Maruyama
- Center for Technology Innovation - Materials, Research & Development Group, Hitachi Ltd., 7-1-1 Omika, Hitachi City, Ibaraki 319-1292, Japan.
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40
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Templier V, Roupioz Y. On the challenges of detecting whole Staphylococcus aureus cells with biosensors. J Appl Microbiol 2017; 123:1056-1067. [PMID: 28609570 DOI: 10.1111/jam.13510] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 06/07/2017] [Accepted: 06/08/2017] [Indexed: 12/15/2022]
Abstract
Due to the increasing number of nosocomial infections and multidrug-resistant bacterial strains, Staphylococcus aureus is now a major worldwide concern. Rapid detection and characterization of this bacterium has become an important issue for biomedical applications. Biosensors are increasingly appearing as low-cost, easy-to-operate and fast alternatives for rapid detection. In this review, we will introduce the main characteristics of S. aureus and will focus on the interest of biosensors for a faster detection of whole S. aureus cells. In particular, we will review the most promising strategies in the choice of ligand for the design of selective and efficient biosensors. Their specific characteristics as well as their advantages and/or disadvantages will also be commented.
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Affiliation(s)
- V Templier
- CNRS, CEA, INAC, SYMMES, Univ. Grenoble Alpes, Grenoble, France
| | - Y Roupioz
- CNRS, CEA, INAC, SYMMES, Univ. Grenoble Alpes, Grenoble, France
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41
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Geuijen KPM, van Wijk-Basten DEJW, Egging DF, Schasfoort RBM, Eppink MH. Rapid Buffer and Ligand Screening for Affinity Chromatography by Multiplexed Surface Plasmon Resonance Imaging. Biotechnol J 2017; 12. [PMID: 28731574 DOI: 10.1002/biot.201700154] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 06/09/2017] [Indexed: 11/11/2022]
Abstract
Protein purifications are often based on the principle of affinity chromatography, where the protein of interest selectively binds to an immobilized ligand. The development of affinity purification requires selecting proper wash and elution conditions. In recent years, miniaturization of the purification process is applied to speed up the development (e.g., microtiterplates, robocolumns). The application of surface plasmon resonance imaging (SPRi) as a tool to simultaneously screen many buffer conditions for wash and elution steps in an affinity-based purification process is studied. Additionally, the protein A ligand stability after exposure to harsh cleaning conditions often limits the reuse of resins and is determined at lab scale. The SPRi technology to screen ligand life-time with respect to alkali stability is used. It is also demonstrated that SPRi can successfully be applied in screening experiments for process developments in a miniaturized approach. The amount of resin, protein and buffer in these studies is reduced 30-300-fold compared to 1 mL column scale, and approximately 10-1000-fold compared to filter plate experiments. The overall development time can be decreased from several months towards days. The multiplexed SPRi can be applied in screening affinity chromatography conditions in early stage development for ligand development and recombinant protein production.
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Affiliation(s)
- Karin P M Geuijen
- Downstream Processing, Synthon Biopharmaceuticals BV, PO Box 7071, 6503 GN, Nijmegen, The Netherlands.,Bioprocess Engineering, Wageningen University, PO Box 16, 6700 AA, Wageningen, The Netherlands
| | | | - David F Egging
- Preclinical Department, Synthon Biopharmaceuticals BV, PO Box 7071, 6503 GN, Nijmegen, The Netherlands
| | - Richard B M Schasfoort
- Medical Cell Biophysics Group, MIRA institute, Faculty of Science and Technology, University of Twente, PO Box 217, 7500 AE, Enschede, The Netherlands
| | - Michel H Eppink
- Downstream Processing, Synthon Biopharmaceuticals BV, PO Box 7071, 6503 GN, Nijmegen, The Netherlands.,Bioprocess Engineering, Wageningen University, PO Box 16, 6700 AA, Wageningen, The Netherlands
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Li Q, Zhang S, Cai Y, Yang Y, Hu F, Liu X, He X. Rapid detection ofListeria monocytogenesusing fluorescence immunochromatographic assay combined with immunomagnetic separation technique. Int J Food Sci Technol 2017. [DOI: 10.1111/ijfs.13428] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Qianru Li
- College of Food Sciences; South China University of Technology; Guangzhou 510640 China
- Fisheries College; Guangdong Ocean University; Zhanjiang 524088 China
| | - Sai Zhang
- National & Local United Engineering Lab of Rapid Diagnostic Test; Guangzhou Wondfo Biotech Co., Ltd.; Guangzhou 5l0663 China
| | - Yanxue Cai
- College of Food Sciences; South China University of Technology; Guangzhou 510640 China
| | - Yuexi Yang
- National & Local United Engineering Lab of Rapid Diagnostic Test; Guangzhou Wondfo Biotech Co., Ltd.; Guangzhou 5l0663 China
| | - Fei Hu
- National & Local United Engineering Lab of Rapid Diagnostic Test; Guangzhou Wondfo Biotech Co., Ltd.; Guangzhou 5l0663 China
| | - Xiaoyun Liu
- National & Local United Engineering Lab of Rapid Diagnostic Test; Guangzhou Wondfo Biotech Co., Ltd.; Guangzhou 5l0663 China
| | - Xiaowei He
- College of Food Sciences; South China University of Technology; Guangzhou 510640 China
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Abstract
Peptide antibodies, with their high specificities and affinities, are invaluable reagents for peptide and protein recognition in biological specimens. Depending on the application and the assay, in which the peptide antibody is to used, several factors influence successful antibody production, including peptide selection and antibody screening. Peptide antibodies have been used in clinical laboratory diagnostics with great success for decades, primarily because they can be produced to multiple targets, recognizing native wildtype proteins, denatured proteins, and newly generated epitopes. Especially mutation-specific peptide antibodies have become important as diagnostic tools in the detection of various cancers. In addition to their use as diagnostic tools in malignant and premalignant conditions, peptide antibodies are applied in all other areas of clinical laboratory diagnostics, including endocrinology, hematology, neurodegenerative diseases, cardiovascular diseases, infectious diseases, and amyloidoses.
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Fc-Binding Ligands of Immunoglobulin G: An Overview of High Affinity Proteins and Peptides. MATERIALS 2016; 9:ma9120994. [PMID: 28774114 PMCID: PMC5456964 DOI: 10.3390/ma9120994] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 11/26/2016] [Accepted: 11/29/2016] [Indexed: 01/20/2023]
Abstract
The rapidly increasing application of antibodies has inspired the development of several novel methods to isolate and target antibodies using smart biomaterials that mimic the binding of Fc-receptors to antibodies. The Fc-binding domain of antibodies is the primary binding site for e.g., effector proteins and secondary antibodies, whereas antigens bind to the Fab region. Protein A, G, and L, surface proteins expressed by pathogenic bacteria, are well known to bind immunoglobulin and have been widely exploited in antibody purification strategies. Several difficulties are encountered when bacterial proteins are used in antibody research and application. One of the major obstacles hampering the use of bacterial proteins is sample contamination with trace amounts of these proteins, which can invoke an immune response in the host. Many research groups actively develop synthetic ligands that are able to selectively and strongly bind to antibodies. Among the reported ligands, peptides that bind to the Fc-domain of antibodies are attractive tools in antibody research. Besides their use as high affinity ligands in antibody purification chromatography, Fc-binding peptides are applied e.g., to localize antibodies on nanomaterials and to increase the half-life of proteins in serum. In this review, recent developments of Fc-binding peptides are presented and their binding characteristics and diverse applications are discussed.
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Bilal S, Lie KK, Karlsen OA, Hordvik I. Characterization of IgM in Norwegian cleaner fish (lumpfish and wrasses). FISH & SHELLFISH IMMUNOLOGY 2016; 59:9-17. [PMID: 27702679 DOI: 10.1016/j.fsi.2016.09.063] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 09/24/2016] [Accepted: 09/30/2016] [Indexed: 06/06/2023]
Abstract
The use of cleaner fish in Norwegian aquaculture has to a large extent been based on wild catches, but breeding of lumpfish and ballan wrasse is currently increasing. Due to disease problems and required vaccine development, tools to study immune responses and a better understanding of the immune system in these species is demanded. The present study comprises lumpfish (Cyclopterus lumpus) and five species of wrasses: Ballan wrasse (Labrus bergylta), rock cook (Centrolabrus exoletus), cuckoo wrasse (Labrus mixtus), corkwing wrasse (Symphodus melops), and goldsinny wrasse (Ctenolabrus rupestris). We present a comparison of the IgM sequences, phylogenetic relationship to other teleosts and characteristic features of IgM in the species studied. The lumpfish IgM heavy chain sequence was assembled from high throughput cDNA sequencing whereas the wrasse sequences were determined by molecular cloning. The secreted form of the IgM heavy chain from all species consisted of four constant Ig domains. IgM was purified from lumpfish and ballan wrasse sera by gel filtration followed by anion exchange chromatography, and polyclonal sera were produced against these proteins. Antisera against ballan wrasse IgM showed cross-reactivity to all analyzed species of wrasses, some cross-reactivity to lumpfish, very low reaction to salmon, and no reaction to cod. Anti- IgM sera against lumpfish cross-reacted to the light chain of all species studied. Wrasses and lumpfish IgM showed high binding affinities for protein A. IgM concentration in adult ballan wrasse (700-800 g) was measured by single radial immunodiffusion assay and found to be 13.4 mg/ml which is about 36% of the total protein concentration. The IgM concentration in lumpfish (600-3600 g) was estimated to 1-2.6 mg/ml, which corresponds to approximately 3% of the total protein concentration.
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Affiliation(s)
- Sumaira Bilal
- Department of Biology, University of Bergen, Norway.
| | | | | | - Ivar Hordvik
- Department of Biology, University of Bergen, Norway
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Kim H, Chen W. A non-chromatographic protein purification strategy using Src 3 homology domains as generalized capture domains. J Biotechnol 2016; 234:27-34. [DOI: 10.1016/j.jbiotec.2016.07.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 07/18/2016] [Accepted: 07/22/2016] [Indexed: 10/21/2022]
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Chenette HC, Welsh JM, Husson SM. Affinity membrane adsorbers for binding arginine-rich proteins. SEP SCI TECHNOL 2016; 52:276-286. [PMID: 37830059 PMCID: PMC10569433 DOI: 10.1080/01496395.2016.1206934] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 06/24/2016] [Indexed: 10/21/2022]
Abstract
Delivering protein chemotherapeutics into cancer cells is a challenge. Fusing the protein to an arginine-rich cell-penetrating peptide offers a possible solution. The goal of this work was to develop an affinity membrane for purification of Arg-rich fusion proteins via capture chromatography. Membranes were prepared by grafting polymers bearing diethyl-4-aminobenzyl phosphonate (D4ABP) ligands from macroporous membrane supports. Incorporation of D4ABP was studied by infrared spectroscopy and energy dispersive spectroscopy. Protein binding capacities of 3 mg lysozyme/mL were measured. While further studies are required to evaluate binding kinetics and Arg-selectivity, achieving higher protein binding capacity is needed before investment in such studies.
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Affiliation(s)
| | - James M. Welsh
- Department of Chemical and Biomolecular Engineering and Center for Advanced Engineering Fibers and Films, Clemson University, Clemson, SC 29634, USA
| | - Scott M. Husson
- Department of Chemical and Biomolecular Engineering and Center for Advanced Engineering Fibers and Films, Clemson University, Clemson, SC 29634, USA
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Chang YJ, Chang CH. Intelligent Computation for Optimal Fabrication Condition of a Protein Chip with Ni-Co Alloy-Coated Surface. SLAS Technol 2016; 21:394-401. [PMID: 25800959 DOI: 10.1177/2211068215577569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Indexed: 06/04/2023]
Abstract
Based on the principle of immobilized metal affinity chromatography (IMAC), it has been found that a Ni-Co alloy-coated protein chip is able to immobilize functional proteins with a His-tag attached. In this study, an intelligent computational approach was developed to promote the performance and repeatability of a Ni-Co alloy-coated protein chip. This approach was launched out of L18 experiments. Based on the experimental data, the fabrication process model of a Ni-Co protein chip was established by using an artificial neural network, and then an optimal fabrication condition was obtained using the Taguchi genetic algorithm. The result was validated experimentally and compared with a nitrocellulose chip. Consequentially, experimental outcomes revealed that the Ni-Co alloy-coated chip, fabricated using the proposed approach, had the best performance and repeatability compared with the Ni-Co chips of an L18 orthogonal array design and the nitrocellulose chip. Moreover, the low fluorescent background of the chip surface gives a more precise fluorescent detection. Based on a small quantity of experiments, this proposed intelligent computation approach can significantly reduce the experimental cost and improve the product's quality.
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Affiliation(s)
- Yaw-Jen Chang
- Department of Mechanical Engineering, Chung Yuan Christian University, Taoyuan City, Taiwan Center for Biomedical Technology (CBT), Chung Yuan Christian University, Taoyuan City, Taiwan
| | - Cheng-Hao Chang
- Department of Mechanical Engineering, Chung Yuan Christian University, Taoyuan City, Taiwan
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Lin CP, Saito K, Boysen RI, Campi EM, Hearn MT. Static and dynamic binding behavior of an IgG2 monoclonal antibody with several new mixed mode affinity adsorbents. Sep Purif Technol 2016. [DOI: 10.1016/j.seppur.2016.02.048] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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50
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Mixed-mode chromatography integrated with high-performance liquid chromatography for protein analysis and separation: Using bovine serum albumin and lysozyme as the model target. J Sep Sci 2016; 39:1900-7. [DOI: 10.1002/jssc.201501394] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 03/13/2016] [Accepted: 03/14/2016] [Indexed: 11/07/2022]
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