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Hallin EI, Serkland TT, Bjånes TK, Skrede S. High-throughput, low-cost quantification of 11 therapeutic antibodies using caprylic acid precipitation and LC-MS/MS. Anal Chim Acta 2024; 1313:342789. [PMID: 38862206 DOI: 10.1016/j.aca.2024.342789] [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: 04/19/2024] [Accepted: 05/25/2024] [Indexed: 06/13/2024]
Abstract
BACKGROUND Therapeutic drug monitoring of treatment with therapeutic antibodies is hampered by the application of a wide range of different methods in the quantification of serum levels. LC-MS based methods could significantly improve comparability of results from different laboratories, but such methods are often considered complicated and costly. We developed a method for LC-MS/MS based quantification of 11 therapeutic antibodies concomitantly measured in a single run, with emphasis on simplicity in sample preparation and low cost. RESULTS After a single-step sample purification using caprylic acid precipitation to remove interfering proteins, the sample underwent proteolysis followed by LC-MS/MS analysis. Infliximab is used as internal standard for sample preparation while isotope-labeled signature peptides identified for each analyte are internal standards for the LC-MS/MS normalization. The method was validated according to recognized guidelines, and pipetting steps can be performed by automated liquid handling systems. The total precision of the method ranged between 2.7 and 7.3 % (5.1 % average) across the quantification range of 4-256 μg/ml for all 11 drugs, with an average accuracy of 96.3 %. Matrix effects were xamined in 55 individual patient samples instead of the recommended 6, and 147 individual patient samples were screened for interfering compounds. SIGNIFICANCE AND NOVELTY Our method for simultaneous quantification of 11 t-mAb in human serum allows an unprecedented integration of robustness, speed and reduced complexity, which could pave the way for uniform use in research projects and clinical settings alike. In addition, the first LC-MS protocol for signature peptide-based quantification of durvalumab is described. This high throughput method can be readily adapted to a drug panel of choice.
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Affiliation(s)
- Erik I Hallin
- Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Jonas Lies vei 87, N-5021, Bergen, Norway
| | - Trond Trætteberg Serkland
- Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Jonas Lies vei 87, N-5021, Bergen, Norway; Department of Clinical Science, Faculty of Medicine, University of Bergen, Jonas Lies vei 87, N-5021, Bergen, Norway
| | - Tormod K Bjånes
- Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Jonas Lies vei 87, N-5021, Bergen, Norway
| | - Silje Skrede
- Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Jonas Lies vei 87, N-5021, Bergen, Norway; Department of Clinical Science, Faculty of Medicine, University of Bergen, Jonas Lies vei 87, N-5021, Bergen, Norway.
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Dawidowicz AL, Dybowski MP, Typek R, Rombel M, Holowinski P. Unexpected formation of dichloroacetic and trichloroacetic artefacts in gas chromatograph injector during Cannabidiol analysis. J Pharm Biomed Anal 2023; 230:115388. [PMID: 37086553 DOI: 10.1016/j.jpba.2023.115388] [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: 02/23/2023] [Revised: 04/04/2023] [Accepted: 04/07/2023] [Indexed: 04/24/2023]
Abstract
The knowledge about the stability of compounds and possible ways of their transformation in the process of sample preparation for analysis and during analysis itself is very helpful in the assessment of possible errors which can appear when an accurate and precise estimation of compound concentration in tested samples is attempted. The present paper shows that a significant amount of CBD present in the blood/plasma sample analyzed by means of GC transforms in the hot GC injector not only to 9α-hydroxyhexahydrocannabinol, 8-hydroxy-iso-hexahydrocannabinol, Δ9-tetrahydrocannabinol, Δ8-tetrahydrocannabinol, and cannabinol but also to the trichloroacetic esters of Δ9-THC and Δ8-THC and, unexpectedly, to their dichloroacetic esters when trichloroacetic acid is used as protein precipitation agent. The increase of GC injector temperature favors the formation of dichloroacetic esters of Δ9-THC and Δ8-THC in relation to their trichloroacetic ones. The appearance of dichloroacetic esters of Δ9-THC and Δ8-THC among CBD transformation products is probably the result of the thermal decomposition of their trichloroacetic esters. The transformation of trichloroacetic derivatives of organic compounds into their dichloroacetic derivatives in GC injector has not been reported yet. The instability of trichloroacetic derivatives of Δ8-/Δ9-THC during their GC analysis is probably accounts for the lack of their GC-MS spectra in the databases. NMR, GC-MS and LC-MS spectra of the newly discovered derivatives constitute an important element of the work. The obtained results demonstrate why the use of trichloroacetic acid for plasma samples deproteinization should be avoided when CBD and/or THC are determined by GC.
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Affiliation(s)
- Andrzej L Dawidowicz
- Department of Chromatography, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie Sklodowska University in Lublin, Lublin 20-031, Poland.
| | - Michal P Dybowski
- Department of Chromatography, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie Sklodowska University in Lublin, Lublin 20-031, Poland.
| | - Rafal Typek
- Department of Chromatography, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie Sklodowska University in Lublin, Lublin 20-031, Poland
| | - Michal Rombel
- Department of Chromatography, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie Sklodowska University in Lublin, Lublin 20-031, Poland
| | - Piotr Holowinski
- Department of Chromatography, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie Sklodowska University in Lublin, Lublin 20-031, Poland
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3
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Two major mechanisms contributing to copurification of CHO host cell proteins and strategies to minimize their negative impact. Protein Expr Purif 2022; 197:106113. [DOI: 10.1016/j.pep.2022.106113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/12/2022] [Accepted: 05/17/2022] [Indexed: 11/18/2022]
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4
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Norouznejad N, Zolfagharian H, Babaie M, Ghobeh M. Purification of Therapeutic Serums of Snake Anti-Venom with Caprylic Acid. J Pharmacopuncture 2022; 25:114-120. [PMID: 35837146 PMCID: PMC9240411 DOI: 10.3831/kpi.2022.25.2.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/25/2022] [Accepted: 03/31/2022] [Indexed: 11/09/2022] Open
Affiliation(s)
- Nilofar Norouznejad
- Department of Biology, Faculty of Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Hossein Zolfagharian
- Razi Vaccine and Serum Research Institute, Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran
| | - Mahdi Babaie
- Razi Vaccine and Serum Research Institute, Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran
| | - Maryam Ghobeh
- Department of Biology, Faculty of Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Štimac A, Kurtović T, Pavlović N, Halassy B. Development of Improved High-Performance Liquid Chromatography Method for the Determination of Residual Caprylic Acid in Formulations of Human Immunoglobulins. Molecules 2022; 27:molecules27051665. [PMID: 35268765 PMCID: PMC8912018 DOI: 10.3390/molecules27051665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 02/28/2022] [Accepted: 03/01/2022] [Indexed: 12/30/2022] Open
Abstract
Quality control of human immunoglobulin formulations produced by caprylic acid precipitation necessitates a simple, rapid, and accurate method for determination of residual caprylic acid. A high-performance liquid chromatography method for that purpose was developed and validated. The method involves depletion of immunoglobulins, the major interfering components that produce high background noise, by precipitation with acetonitrile (1:1, v/v). Chromatographic analysis of caprylic acid, preserved in supernatant with no loss, was performed using a reverse-phase C18 column (2.1 × 150 mm, 3 μm) as a stationary phase and water with 0.05% TFA–acetonitrile (50:50, v/v) as a mobile phase at a flow rate of 0.2 mL/min and run time of 10 min. The developed method was successfully validated according to the ICH guidelines. The validation parameters confirmed that method was linear, accurate, precise, specific, and able to provide excellent separation of peaks corresponding to caprylic acid and the fraction of remaining immunoglobulins. Furthermore, a 24−1 fractional factorial design was applied in order to test the robustness of developed method. As such, the method is highly suitable for the quantification of residual caprylic acid in formulations of human immunoglobulins for therapeutic use, as demonstrated on samples produced by fractionation of convalescent anti-SARS-CoV-2 human plasma at a laboratory scale. The obtained results confirmed that the method is convenient for routine quality control.
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Affiliation(s)
- Adela Štimac
- Centre for Research and Knowledge Transfer in Biotechnology, University of Zagreb, Rockefellerova 10, 10000 Zagreb, Croatia;
- Correspondence: (A.Š.); (B.H.)
| | - Tihana Kurtović
- Centre for Research and Knowledge Transfer in Biotechnology, University of Zagreb, Rockefellerova 10, 10000 Zagreb, Croatia;
| | - Nediljko Pavlović
- Institute of Immunology, Inc., Rockefellerova 10, 10000 Zagreb, Croatia;
| | - Beata Halassy
- Centre for Research and Knowledge Transfer in Biotechnology, University of Zagreb, Rockefellerova 10, 10000 Zagreb, Croatia;
- Correspondence: (A.Š.); (B.H.)
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Mender MM, Bolton F, Berry C, Young M. Antivenom: An immunotherapy for the treatment of snakebite envenoming in sub-Saharan Africa. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2021; 129:435-477. [PMID: 35305724 DOI: 10.1016/bs.apcsb.2021.11.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Snakebite envenoming (SBE) leads to significant morbidity and mortality, resulting in over 90,000 deaths and approximately 400,000 amputations annually. In sub-Saharan Africa (SSA) alone, SBE accounts for over 30,000 deaths per annum. Since 2017, SBE has been classified as a priority Neglected Tropical Disease (NTD) by the World Health Organisation (WHO). The major species responsible for mortality from SBE within SSA are from the Bitis, Dendroaspis, Echis and Naja genera. Pharmacologically active toxins such as metalloproteinases, serine proteinases, 3-finger toxins, kunitz-type toxins, and phospholipase A2s are the primary snake venom components. These toxins induce cytotoxicity, coagulopathy, hemorrhage, and neurotoxicity in envenomed victims. Antivenom is currently the only available venom-specific treatment for SBE and contains purified equine or ovine polyclonal antibodies, collected from donor animals repeatedly immunized with low doses of adjuvanted venom. The resulting plasma or serum contains a high titre of specific antibodies, which can then be collected and stored until required. The purified antibodies are either whole IgG, monovalent fragment antibody (Fab) or divalent fragment antibody F(ab')2. Despite pharmacokinetic and pharmacodynamic differences, all three are effective in the treatment of SBE. No antivenom is without adverse reactions but, the level of their impact and severity varies from benign early adverse reactions to the rarely occurring fatal anaphylactic shock. However, the major side effects are largely reversible with immediate administration of adrenaline and corticosteroids. There are 16 different antivenoms marketed within SSA, but the efficacy and safety profiles are only published for less than 50% of these products.
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Affiliation(s)
- Mender M Mender
- School of Bioscience, Cardiff University, Cardiff, United Kingdom; Department of Research and Development, MicroPharm Ltd, Newcastle Emlyn, United Kingdom.
| | - Fiona Bolton
- Department of Research and Development, MicroPharm Ltd, Newcastle Emlyn, United Kingdom
| | - Colin Berry
- School of Bioscience, Cardiff University, Cardiff, United Kingdom
| | - Mark Young
- School of Bioscience, Cardiff University, Cardiff, United Kingdom
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Liu W, Fan X, Wang X, Rai K, Su J, Xian M, Nian R. Chromatin-directed clarification in cell culture fluid enables non-protein affinity antibody purification by tangential flow filtration integrated with high-capacity cation exchange chromatography. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.107315] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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8
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Salt-enhanced permeabilization for monoclonal antibody precipitation and purification in a tubular reactor with a depth filtration membrane with advanced chromatin extraction. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.107332] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Wan Y, Zhang T, Chen T, Wang Y, Li Y. Sodium caprylate induced precipitation post Protein A chromatography as an effective means for host cell protein clearance. Protein Expr Purif 2019; 164:105460. [PMID: 31351123 DOI: 10.1016/j.pep.2019.105460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/23/2019] [Accepted: 07/23/2019] [Indexed: 11/26/2022]
Abstract
In downstream processing of monoclonal antibody (mAb), post Protein A neutralization and subsequent intermediate depth filtration are critical steps for host cell protein (HCP) clearance. Previous studies have shown that adding caprylic acid (CA) during neutralization can further improve HCP removal by promoting their precipitation. In this study, we replaced CA with its sodium salt - sodium caprylate (SC). For the five mAbs studied, SC has been shown to be equally effective as CA at precipitating HCPs. As the salt form has a higher solubility, SC stock solution with relatively high concentration can be easily prepared, which facilitates its adding to the Protein A elution pool. Thus, this study not only confirms the effectiveness of CA/SC-induced HCP precipitation but also provides a more convenient way to integrate this method into the downstream process.
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Affiliation(s)
- Yan Wan
- Technology and Process Development (TPD), WuXi Biologics, 288 Fute Zhong Road, Waigaoqiao Free Trade Zone, Shanghai, 200131, China
| | - Ting Zhang
- Technology and Process Development (TPD), WuXi Biologics, 288 Fute Zhong Road, Waigaoqiao Free Trade Zone, Shanghai, 200131, China
| | - Tao Chen
- Technology and Process Development (TPD), WuXi Biologics, 288 Fute Zhong Road, Waigaoqiao Free Trade Zone, Shanghai, 200131, China
| | - Ying Wang
- Technology and Process Development (TPD), WuXi Biologics, 288 Fute Zhong Road, Waigaoqiao Free Trade Zone, Shanghai, 200131, China
| | - Yifeng Li
- Technology and Process Development (TPD), WuXi Biologics, 288 Fute Zhong Road, Waigaoqiao Free Trade Zone, Shanghai, 200131, China.
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10
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Li Y. The application of caprylic acid in downstream processing of monoclonal antibodies. Protein Expr Purif 2019; 153:92-96. [DOI: 10.1016/j.pep.2018.09.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Accepted: 09/07/2018] [Indexed: 10/28/2022]
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11
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León G, Vargas M, Segura Á, Herrera M, Villalta M, Sánchez A, Solano G, Gómez A, Sánchez M, Estrada R, Gutiérrez JM. Current technology for the industrial manufacture of snake antivenoms. Toxicon 2018; 151:63-73. [DOI: 10.1016/j.toxicon.2018.06.084] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 05/28/2018] [Accepted: 06/25/2018] [Indexed: 10/28/2022]
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12
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Multiple functions of caprylic acid-induced impurity precipitation for process intensification in monoclonal antibody purification. J Biotechnol 2018; 279:13-21. [DOI: 10.1016/j.jbiotec.2018.05.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 04/18/2018] [Accepted: 05/01/2018] [Indexed: 11/17/2022]
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13
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Caballero-Casero N, García-Fonseca S, Rubio S. Restricted access supramolecular solvents for the simultaneous extraction and cleanup of ochratoxin A in spices subjected to EU regulation. Food Control 2018. [DOI: 10.1016/j.foodcont.2018.01.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Chen Q, Toh P, Sun Y, Latiff SMA, Hoi A, Xian M, Zhang H, Nian R, Zhang W, Gagnon P. Histone-dependent IgG conservation in octanoic acid precipitation and its mechanism. Appl Microbiol Biotechnol 2016; 100:9933-9941. [DOI: 10.1007/s00253-016-7719-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Revised: 06/27/2016] [Accepted: 06/29/2016] [Indexed: 11/29/2022]
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15
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Nian R, Gagnon P. Advance chromatin extraction enhances performance and productivity of cation exchange chromatography-based capture of Immunoglobulin G monoclonal antibodies. J Chromatogr A 2016; 1453:54-61. [DOI: 10.1016/j.chroma.2016.05.029] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2015] [Revised: 04/03/2016] [Accepted: 05/06/2016] [Indexed: 12/28/2022]
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16
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García-Fonseca S, Rubio S. Restricted access supramolecular solvents for removal of matrix-induced ionization effects in mass spectrometry: Application to the determination of Fusarium toxins in cereals. Talanta 2016; 148:370-9. [DOI: 10.1016/j.talanta.2015.11.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 10/31/2015] [Accepted: 11/04/2015] [Indexed: 11/16/2022]
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17
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Advance chromatin extraction improves capture performance of protein A affinity chromatography. J Chromatogr A 2016; 1431:1-7. [DOI: 10.1016/j.chroma.2015.12.044] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2015] [Revised: 12/15/2015] [Accepted: 12/16/2015] [Indexed: 11/21/2022]
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18
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Zheng J, Wang L, Twarowska B, Laino S, Sparks C, Smith T, Russell R, Wang M. Caprylic acid-induced impurity precipitation from protein A capture column elution pool to enable a two-chromatography-step process for monoclonal antibody purification. Biotechnol Prog 2015; 31:1515-25. [PMID: 26280674 DOI: 10.1002/btpr.2154] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Revised: 07/09/2015] [Indexed: 11/10/2022]
Abstract
This article presents the use of caprylic acid (CA) to precipitate impurities from the protein A capture column elution pool for the purification of monoclonal antibodies (mAbs) with the objective of developing a two chromatography step antibody purification process. A CA-induced impurity precipitation in the protein A column elution pool was evaluated as an alternative method to polishing chromatography techniques for use in the purification of mAbs. Parameters including pH, CA concentrations, mixing time, mAb concentrations, buffer systems, and incubation temperatures were evaluated on their impacts on the impurity removal, high-molecular weight (HMW) formation and precipitation step yield. Both pH and CA concentration, but not mAb concentrations and buffer systems, are key parameters that can affect host-cell proteins (HCPs) clearance, HMW species, and yield. CA precipitation removes HCPs and some HMW species to the acceptable levels under the optimal conditions. The CA precipitation process is robust at 15-25°C. For all five mAbs tested in this study, the optimal CA concentration range is 0.5-1.0%, while the pH range is from 5.0 to 6.0. A purification process using two chromatography steps (protein A capture column and ion exchange polishing column) in combination with CA-based impurity precipitation step can be used as a robust downstream process for mAb molecules with a broad range of isoelectric points. Residual CA can be effectively removed by the subsequent polishing cation exchange chromatography.
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Affiliation(s)
- Ji Zheng
- Biologics Development Dept., Bristol-Myers Squibb, Bloomsbury, NJ, 08804
| | - Lu Wang
- Biologics Development Dept., Bristol-Myers Squibb, Bloomsbury, NJ, 08804
| | - Barbara Twarowska
- Biologics Development Dept., Bristol-Myers Squibb, Bloomsbury, NJ, 08804
| | - Sarah Laino
- Biologics Development Dept., Bristol-Myers Squibb, Bloomsbury, NJ, 08804
| | - Colleen Sparks
- Biologics Development Dept., Bristol-Myers Squibb, Bloomsbury, NJ, 08804
| | - Timothy Smith
- Biologics Development Dept., Bristol-Myers Squibb, Bloomsbury, NJ, 08804
| | - Reb Russell
- Biologics Development Dept., Bristol-Myers Squibb, Bloomsbury, NJ, 08804
| | - Michelle Wang
- Biologics Development Dept., Bristol-Myers Squibb, Bloomsbury, NJ, 08804
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Caballero-Casero N, Çabuk H, Martínez-Sagarra G, Devesa J, Rubio S. Nanostructured alkyl carboxylic acid-based restricted access solvents: Application to the combined microextraction and cleanup of polycyclic aromatic hydrocarbons in mosses. Anal Chim Acta 2015; 890:124-33. [DOI: 10.1016/j.aca.2015.06.060] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Revised: 06/25/2015] [Accepted: 06/29/2015] [Indexed: 10/23/2022]
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20
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Herzer S, Bhangale A, Barker G, Chowdhary I, Conover M, O'Mara BW, Tsang L, Wang SY, Krystek SR, Yao Y, Rieble S. Development and scale-up of the recovery and purification of a domain antibody Fc fusion protein-comparison of a two and three-step approach. Biotechnol Bioeng 2015; 112:1417-28. [DOI: 10.1002/bit.25561] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 02/06/2015] [Indexed: 01/22/2023]
Affiliation(s)
- Sibylle Herzer
- Biologics Development; BLY-106G, Bristol-Myers Squibb; 519 Route 173 West, Bloomsbury New Jersey
| | | | | | | | - Matthew Conover
- Biologics Development; BLY-106G, Bristol-Myers Squibb; 519 Route 173 West, Bloomsbury New Jersey
| | | | - Lily Tsang
- Biologics Development; BMS; Seattle Washington
| | | | | | - Yan Yao
- Biologics Development; BMS; Bloomsbury New Jersey
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Gagnon P, Nian R, Tan L, Cheong J, Yeo V, Yang Y, Gan HT. Chromatin-mediated depression of fractionation performance on electronegative multimodal chromatography media, its prevention, and ramifications for purification of immunoglobulin G. J Chromatogr A 2014; 1374:145-155. [DOI: 10.1016/j.chroma.2014.11.052] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 11/17/2014] [Accepted: 11/19/2014] [Indexed: 11/24/2022]
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Abstract
At laboratory scale, several methods for the purification of immunoglobulins from plasma or serum are available. However, not all of them are equally applicable when the scale-up to the level of the pharmaceutical industry is intended. In this case, among other factors, it must be taken into account the performance and the cost and quality of the end product. Here we present a method of purification based on the differential precipitation of plasma proteins with caprylic acid in a single step that is simple and cheap and can be easily scaled up. This methodology has been successfully applied to the development and production of pharmaceutical product, such as therapeutic antisera where immunoglobulin fraction is the unique active pharmaceutical ingredient.
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Affiliation(s)
- Victor Morais
- Department of Biotechnology, Institute of Hygiene, University of the Republic, Av. Alfredo Navarro 3051, Montevideo, 11600, Uruguay,
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