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Das D, Sen V, Chakraborty G, Pillai V, Tambade R, Jonnalagadda PN, Rao AVSSN, Chittela RK. Quinaldine Red as a fluorescent probe for determining the melting temperature ( Tm) of proteins: a simple, rapid and high-throughput assay. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:950-956. [PMID: 38291911 DOI: 10.1039/d3ay01941a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Proteins play an important role in biological systems and several proteins are used in diagnosis, therapy, food industry etc. Thus, knowledge about the physical properties of the proteins is of utmost importance, which will aid in understanding their function and subsequent applications. The melting temperature (Tm) of a protein is one of the essential parameters which gives information about the stability of a protein under different conditions. In the present study, we have demonstrated a method for determining the Tm of proteins using the supramolecular interaction between Quinaldine Red (QR) and proteins. Using this method, we have determined the Tm of 5 proteins and compared our results with established protocols. Our results showed good agreement with the other methods and published values. The method developed in this study is inexpensive, quick, and devoid of complex instruments and pre/post-treatment of the samples. In addition, this method can be adopted for high throughput in multi-plate mode. Thus, this study projects a new methodology for Tm determination of various proteins with user friendly operation.
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Affiliation(s)
- Dhruv Das
- Applied Genomics Section, Bhabha Atomic Research Centre, Mumbai-400085, India.
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
| | - Vikram Sen
- UM-DAE Centre for Excellence in Basic Sciences, Vidyanagari, Mumbai-400098, India
| | - Goutam Chakraborty
- Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Homi Bhabha National Institute, Mumbai-400085, India
| | - Vinayaki Pillai
- Applied Genomics Section, Bhabha Atomic Research Centre, Mumbai-400085, India.
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
| | - Rahul Tambade
- Applied Genomics Section, Bhabha Atomic Research Centre, Mumbai-400085, India.
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
| | - Padma Nilaya Jonnalagadda
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
- Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Homi Bhabha National Institute, Mumbai-400085, India
| | | | - Rajani Kant Chittela
- Applied Genomics Section, Bhabha Atomic Research Centre, Mumbai-400085, India.
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
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2
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Ren L, Ma J, Xu W, Lv Y, Tong Q. Stability of low density lipoprotein particles affect the formation of off-flavor in thermal egg yolk. Food Res Int 2022; 154:111029. [DOI: 10.1016/j.foodres.2022.111029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 02/12/2022] [Accepted: 02/15/2022] [Indexed: 11/30/2022]
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3
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Manrrique JD, Powell ZK, Brock RM, Franklin CE, Coker AO. Room Temperature Intrinsic Emission Ratio of BSA Correlates With Percent Aggregates During Long-Term Storage. J Pharm Sci 2020; 110:1120-1129. [PMID: 33127426 DOI: 10.1016/j.xphs.2020.10.045] [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: 06/11/2020] [Revised: 08/04/2020] [Accepted: 10/22/2020] [Indexed: 10/23/2022]
Abstract
Successful formulation development hinges on the ability to screen and identify excipients that stabilize drug products during long-term storage. Biophysical and accelerated stability studies are used to screen for excipients that stabilize protein drug products. However, these studies are not always predictive of aggregation during long-term storage. In this study, we used multivariate experimentation to compare the effectiveness of intrinsic fluorescence and size exclusion chromatography accelerated stability parameters to predict excipients that stabilized bovine serum albumin (BSA) against aggregation on long-term storage at 4 °C. Emission intensity ratio (IR330/350) data was more sensitive than emission maxima (λmax) or intensity measurements in identifying significant factors and interactions. We observed the expected inverse correlation between the mid-points of fluorescence thermal transitions (Tms) and insoluble aggregates at 4 and 40 °C. However, there were positive correlations between Tms and % aggregates at 4 °C, indicating that if Tm was used as a predictive tool, it would select formulations that promoted soluble aggregates on long-term storage. Ambient temperature IR330/350 measurements identified excipients that reduced BSA soluble aggregates on long-term storage. The results show ambient temperature emission ratio measurements can be useful for protein formulation development.
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Affiliation(s)
- Joel D Manrrique
- University of the Incarnate Word Feik School of Pharmacy, Department of Pharmaceutical Sciences, San Antonio, TX, USA
| | - Zakiya K Powell
- University of the Incarnate Word Feik School of Pharmacy, Department of Pharmaceutical Sciences, San Antonio, TX, USA
| | - Ryan M Brock
- University of the Incarnate Word Feik School of Pharmacy, Department of Pharmaceutical Sciences, San Antonio, TX, USA
| | - Cynthia E Franklin
- University of the Incarnate Word Feik School of Pharmacy, Department of Pharmaceutical Sciences, San Antonio, TX, USA
| | - Adeola O Coker
- University of the Incarnate Word Feik School of Pharmacy, Department of Pharmaceutical Sciences, San Antonio, TX, USA.
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4
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Blaffert J, Haeri HH, Blech M, Hinderberger D, Garidel P. Spectroscopic methods for assessing the molecular origins of macroscopic solution properties of highly concentrated liquid protein solutions. Anal Biochem 2018; 561-562:70-88. [PMID: 30243977 DOI: 10.1016/j.ab.2018.09.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 09/08/2018] [Accepted: 09/17/2018] [Indexed: 01/14/2023]
Abstract
In cases of subcutaneous injection of therapeutic monoclonal antibodies, high protein concentrations (>50 mg/ml) are often required. During the development of these high concentration liquid formulations (HCLF), challenges such as aggregation, gelation, opalescence, phase separation, and high solution viscosities are more prone compared to low concentrated protein formulations. These properties can impair manufacturing processes, as well as protein stability and shelf life. To avoid such unfavourable solution properties, a detailed understanding about the nature of these properties and their driving forces are required. However, the fundamental mechanisms that lead to macroscopic solution properties, as above mentioned, are complex and not fully understood, yet. Established analytical methods for assessing the colloidal stability, i.e. the ability of a native protein to remain dispersed in solution, are restricted to dilute conditions and provide parameters such as the second osmotic virial coefficient, B22, and the diffusion interaction coefficient, kD. These parameters are routinely applied for qualitative estimations and identifications of proteins with challenging solution behaviours, such as high viscosities and aggregation, although the assays are prepared for low protein concentration conditions, typically between 0.1 and 20 mg/ml ("ideal" solution conditions). Quantitative analysis of samples of high protein concentration is difficult and it is hard to obtain information about the driving forces of such solution properties and corresponding protein-protein self-interactions. An advantage of using specific spectroscopic methods is the potential of directly analysing highly concentrated protein solutions at different solution conditions. This allows for collecting/gaining valuable information about the fundamental mechanisms of solution properties of the high protein concentration regime. In addition, the derived parameters might be more predictive as compared to the parameters originating from assays which are optimized for the low protein concentration range. The provided information includes structural data, molecular dynamics at various timescales and protein-solvent interactions, which can be obtained at molecular resolution. Herein, we provide an overview about spectroscopic techniques for analysing the origins of macroscopic solution behaviours in general, with a specific focus on pharmaceutically relevant high protein concentration and formulation conditions.
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Affiliation(s)
- Jacob Blaffert
- Institute of Chemistry, Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120, Halle/Saale, Germany
| | - Haleh Hashemi Haeri
- Institute of Chemistry, Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120, Halle/Saale, Germany
| | - Michaela Blech
- Boehringer Ingelheim Pharma GmbH & Co. KG, Protein Science, Birkerndorfer Str. 65, 88397, Biberach/Riß, Germany
| | - Dariush Hinderberger
- Institute of Chemistry, Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120, Halle/Saale, Germany
| | - Patrick Garidel
- Institute of Chemistry, Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120, Halle/Saale, Germany; Boehringer Ingelheim Pharma GmbH & Co. KG, Protein Science, Birkerndorfer Str. 65, 88397, Biberach/Riß, Germany.
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5
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Hadnađev M, Dapčević-Hadnađev T, Lazaridou A, Moschakis T, Michaelidou AM, Popović S, Biliaderis CG. Hempseed meal protein isolates prepared by different isolation techniques. Part I. physicochemical properties. Food Hydrocoll 2018. [DOI: 10.1016/j.foodhyd.2017.12.015] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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The effects of biological buffers TRIS, TAPS, TES on the stability of lysozyme. Int J Biol Macromol 2018; 112:720-727. [DOI: 10.1016/j.ijbiomac.2018.01.203] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 01/23/2018] [Accepted: 01/30/2018] [Indexed: 12/20/2022]
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7
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Moorthy BS, Zarraga IE, Kumar L, Walters BT, Goldbach P, Topp EM, Allmendinger A. Solid-State Hydrogen–Deuterium Exchange Mass Spectrometry: Correlation of Deuterium Uptake and Long-Term Stability of Lyophilized Monoclonal Antibody Formulations. Mol Pharm 2017; 15:1-11. [DOI: 10.1021/acs.molpharmaceut.7b00504] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Balakrishnan S. Moorthy
- Department
of Industrial and Physical Pharmacy, Purdue University, West Lafayette, Indiana 47907, United States
| | - Isidro E. Zarraga
- Late
State Pharmaceutical Development, Genentech (A Member of the Roche Group), South San Francisco, California 94080, United States
| | - Lokesh Kumar
- Pharmaceutical
Processing and Technology Development, Genentech (A Member of the Roche Group), South San Francisco, California 94080, United States
| | - Benjamin T. Walters
- Early
State Pharmaceutical Development, Genentech (A Member of the Roche Group), South San Francisco, California 94080, United States
| | - Pierre Goldbach
- Late-stage
Pharmaceutical and Processing Development, Pharmaceutical Development
and Supplies, Biologics, Europe, Hoffmann-La Roche, CH-4070 Basel, Switzerland
| | - Elizabeth M. Topp
- Department
of Industrial and Physical Pharmacy, Purdue University, West Lafayette, Indiana 47907, United States
| | - Andrea Allmendinger
- Late-stage
Pharmaceutical and Processing Development, Pharmaceutical Development
and Supplies, Biologics, Europe, Hoffmann-La Roche, CH-4070 Basel, Switzerland
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8
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Mahler HC, Allmendinger A. Stability, Formulation, and Delivery of Biopharmaceuticals. METHODS AND PRINCIPLES IN MEDICINAL CHEMISTRY 2017. [DOI: 10.1002/9783527699124.ch14] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
| | - Andrea Allmendinger
- F. Hoffmann-La Roche AG; Pharmaceutical Development & Supplies Biologics EU, Late-Stage Pharmaceutical and Processing Development; Grenzacherstrasse 124 4070 Basel Switzerland
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9
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Corbatón-Báguena MJ, Gugliuzza A, Cassano A, Mazzei R, Giorno L. Destabilization and removal of immobilized enzymes adsorbed onto polyethersulfone ultrafiltration membranes by salt solutions. J Memb Sci 2015. [DOI: 10.1016/j.memsci.2015.03.061] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Exploring the relationship between protein secondary structures, temperature-dependent viscosities, and technological treatments in egg yolk and LDL by FTIR and rheology. Food Chem 2015; 173:584-93. [DOI: 10.1016/j.foodchem.2014.10.084] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Revised: 01/10/2014] [Accepted: 01/23/2014] [Indexed: 11/23/2022]
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11
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Ulrichs T, Drotleff AM, Ternes W. Determination of heat-induced changes in the protein secondary structure of reconstituted livetins (water-soluble proteins from hen’s egg yolk) by FTIR. Food Chem 2015; 172:909-20. [DOI: 10.1016/j.foodchem.2014.09.128] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 08/15/2014] [Accepted: 09/22/2014] [Indexed: 10/24/2022]
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12
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Brader ML, Estey T, Bai S, Alston RW, Lucas KK, Lantz S, Landsman P, Maloney KM. Examination of Thermal Unfolding and Aggregation Profiles of a Series of Developable Therapeutic Monoclonal Antibodies. Mol Pharm 2015; 12:1005-17. [DOI: 10.1021/mp400666b] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Mark L. Brader
- Protein Pharmaceutical Development, Biogen Idec, 14 Cambridge Center, Cambridge, Massachusetts 02142, United States
| | - Tia Estey
- Protein Pharmaceutical Development, Biogen Idec, 14 Cambridge Center, Cambridge, Massachusetts 02142, United States
| | - Shujun Bai
- Protein Pharmaceutical Development, Biogen Idec, 14 Cambridge Center, Cambridge, Massachusetts 02142, United States
| | - Roy W. Alston
- Protein Pharmaceutical Development, Biogen Idec, 14 Cambridge Center, Cambridge, Massachusetts 02142, United States
| | - Karin K. Lucas
- Protein Pharmaceutical Development, Biogen Idec, 14 Cambridge Center, Cambridge, Massachusetts 02142, United States
| | - Steven Lantz
- Protein Pharmaceutical Development, Biogen Idec, 14 Cambridge Center, Cambridge, Massachusetts 02142, United States
| | - Pavel Landsman
- Protein Pharmaceutical Development, Biogen Idec, 14 Cambridge Center, Cambridge, Massachusetts 02142, United States
| | - Kevin M. Maloney
- Protein Pharmaceutical Development, Biogen Idec, 14 Cambridge Center, Cambridge, Massachusetts 02142, United States
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13
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Telikepalli SN, Kumru OS, Kalonia C, Esfandiary R, Joshi SB, Middaugh CR, Volkin DB. Structural characterization of IgG1 mAb aggregates and particles generated under various stress conditions. J Pharm Sci 2014; 103:796-809. [PMID: 24452866 DOI: 10.1002/jps.23839] [Citation(s) in RCA: 98] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Revised: 11/25/2013] [Accepted: 12/12/2013] [Indexed: 12/11/2022]
Abstract
IgG1 mAb solutions were prepared with and without sodium chloride and subjected to different environmental stresses. Formation of aggregates and particles of varying size was monitored by a combination of size-exclusion chromatography, Nanoparticle Tracking Analysis, Micro-flow Imaging (MFI), turbidity, and visual assessments. Stirring and heating induced the highest concentration of particles. In general, the presence of NaCl enhanced this effect. The morphology of the particles formed from mAb samples exposed to different stresses was analyzed from transmission electron microscopy and MFI images. Shaking samples without NaCl generated the most fibrillar particles, whereas stirring created largely spherical particles. The composition of the particles was evaluated for covalent cross-linking by SDS-PAGE, overall secondary structure by FTIR microscopy, and surface apolarity by extrinsic fluorescence spectroscopy. Freeze-thaw and shaking led to particles containing protein with native-like secondary structure. Heating and stirring produced IgG1-containing aggregates and particles with some non-native disulfide cross-links, varying levels of intermolecular beta sheet content, and increased surface hydrophobicity. These results highlight the importance of evaluating protein particle morphology and composition, in addition to particle number and size distributions, to better understand the effect of solution conditions and environmental stresses on the formation of protein particles in mAb solutions.
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Affiliation(s)
- Srivalli N Telikepalli
- Department of Pharmaceutical Chemistry, Macromolecule and Vaccine Stabilization Center, University of Kansas, Lawrence, Kansas, 66047
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14
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Härtl E, Winter G, Besheer A. Influence of Hydroxypropyl‐Beta‐Cyclodextrin on the Stability of Dilute and Highly Concentrated Immunoglobulin G Formulations. J Pharm Sci 2013; 102:4121-31. [DOI: 10.1002/jps.23729] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Revised: 08/18/2013] [Accepted: 08/26/2013] [Indexed: 12/16/2022]
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15
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Youssef AM, Winter G. A critical evaluation of microcalorimetry as a predictive tool for long term stability of liquid protein formulations: Granulocyte Colony Stimulating Factor (GCSF). Eur J Pharm Biopharm 2013; 84:145-55. [DOI: 10.1016/j.ejpb.2012.12.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Revised: 12/13/2012] [Accepted: 12/21/2012] [Indexed: 02/02/2023]
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16
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Cheng W, Joshi SB, He F, Brems DN, He B, Kerwin BA, Volkin DB, Middaugh CR. Comparison of High-Throughput Biophysical Methods to Identify Stabilizing Excipients for a Model IgG2 Monoclonal Antibody: Conformational Stability and Kinetic Aggregation Measurements. J Pharm Sci 2012; 101:1701-20. [DOI: 10.1002/jps.23076] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Revised: 01/06/2012] [Accepted: 01/18/2012] [Indexed: 12/12/2022]
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17
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Printz M, Friess W. Simultaneous detection and analysis of protein aggregation and protein unfolding by size exclusion chromatography with post column addition of the fluorescent dye BisANS. J Pharm Sci 2011; 101:826-37. [PMID: 22095720 DOI: 10.1002/jps.22808] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Revised: 10/07/2011] [Accepted: 10/13/2011] [Indexed: 11/12/2022]
Abstract
For development and optimization of protein formulation sensitive analytical tools are required to follow both aggregation and changes in protein structure. The latter can be seen as the beginning of physical instability leading to aggregation. The focus of this work laid on the development of a novel analysis simultaneously detecting changes in protein conformation and the formation of oligomers. By adding the extrinsic fluorescent dye 4,4'-dianilino-1,1'-binaphthyl-5,5'-disulfonic acid dipotassium salt (BisANS) after size exclusion chromatography (SEC) and UV detection, it was possible to separate protein monomer and oligomers by size, analyze the amount of formed oligomers quantitatively using UV detection, and observe changes in protein structure of different protein species by fluorescence detection. This enabled us to distinguish between native-like and denatured oligomers and monomers formed under different stress conditions. Correspondingly, increased fluorescence reflecting partial unfolding was assigned specifically to monomer, oligomer, or both. The unfolding of monomer is not traceable by commonly used detection methods, but its monitoring may provide important information about activity and long-term stability. By adding the dye after SEC and UV detection, interferences with prior detectors are precluded, excipients are separated avoiding interferences with the protein-dye interaction and, in addition, the dye-protein interaction cannot impact the aggregation formation, as added after the separation of monomer and aggregates.
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Affiliation(s)
- Miriam Printz
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Ludwig-Maximilians-University Munich, D-81377 Munich, Germany
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18
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Sathya Devi V, Coleman DR, Truntzer J. Thermal unfolding curves of high concentration bovine IgG measured by FTIR spectroscopy. Protein J 2011; 30:395-403. [PMID: 21751004 DOI: 10.1007/s10930-011-9344-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The purpose of this research is to study the thermal unfolding of high concentration bovine Immunoglobulin G (IgG) under 26 different experimental conditions by Fourier Transform Infrared spectroscopy with improved purge conditions and software calculations. When bovine IgG (25-200 mg/mL) was thermally denatured between pH 4.0 and 8.0, it was observed that at 25 mg/mL concentration, the protein exhibited maximum thermal stability at pH 6.0 and 7.0 as evident from the apparent T(m) values. Increasing the concentration from 25 to 100 mg/mL at those pH values increased the thermal resistance of the protein by 2-3 °C. But, at 200 mg/mL, IgG showed a small decrease in its transition temperature. Presence of 100 mM Trehalose enhanced the T(m) values at all conditions and possibly prevented the complete loss of IgG as insoluble aggregates at higher temperatures. Second derivative plots were constructed to explain the conformational changes of IgG during thermal unfolding.
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19
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Hawe A, Wiggenhorn M, van de Weert M, Garbe JHO, Mahler HC, Jiskoot W. Forced degradation of therapeutic proteins. J Pharm Sci 2011; 101:895-913. [PMID: 22083792 DOI: 10.1002/jps.22812] [Citation(s) in RCA: 178] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2011] [Revised: 10/17/2011] [Accepted: 10/18/2011] [Indexed: 01/16/2023]
Abstract
The scope of this paper is to review approaches used for forced degradation (synonym, stress testing) of therapeutic proteins. Forced degradation studies play a central role in the development of therapeutic proteins, for example, for candidate selection, molecule characterization, formulation development, assay development, and comparability studies. Typical stress methods are addressed within this review, such as exposure to elevated temperatures, freeze-thawing, mechanical stress, oxidation, light, as well as various materials and devices used in the clinics during final administration. Stability testing is briefly described as far as relevant to the discussion of forced degradation studies. Whereas stability-testing requirements are defined in regulatory guidelines, standard procedures for forced degradation of therapeutic proteins are largely unavailable, except for photostability. Possible selection criteria to identify appropriate stress conditions and recommendations for setting up forced degradation studies for the different phases of development of therapeutic proteins are presented.
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Affiliation(s)
- Andrea Hawe
- Division of Drug Delivery Technology, Leiden/Amsterdam Center for Drug Research, 2300 RA Leiden, The Netherlands
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20
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Feng YW, Ooishi A, Honda S. Aggregation factor analysis for protein formulation by a systematic approach using FTIR, SEC and design of experiments techniques. J Pharm Biomed Anal 2011; 57:143-52. [PMID: 21920692 DOI: 10.1016/j.jpba.2011.08.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2011] [Revised: 08/24/2011] [Accepted: 08/25/2011] [Indexed: 11/19/2022]
Abstract
A simple systematic approach using Fourier transform infrared (FTIR) spectroscopy, size exclusion chromatography (SEC) and design of experiments (DOE) techniques was applied to the analysis of aggregation factors for protein formulations in stress and accelerated testings. FTIR and SEC were used to evaluate protein conformational and storage stabilities, respectively. DOE was used to determine the suitable formulation and to analyze both the main effect of single factors and the interaction effect of combined factors on aggregation. Our results indicated that (i) analysis at a low protein concentration is not always applicable to high concentration formulations; (ii) an investigation of interaction effects of combined factors as well as main effects of single factors is effective for improving conformational stability of proteins; (iii) with the exception of pH, the results of stress testing with regard to aggregation factors would be available for suitable formulation instead of performing time-consuming accelerated testing; (iv) a suitable pH condition should not be determined in stress testing but in accelerated testing, because of inconsistent effects of pH on conformational and storage stabilities. In summary, we propose a three-step strategy, using FTIR, SEC and DOE techniques, to effectively analyze the aggregation factors and perform a rapid screening for suitable conditions of protein formulation.
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Affiliation(s)
- Yan Wen Feng
- National Institute of Advanced Industrial Science and Technology, Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
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21
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Kiese S, Pappenberger A, Friess W, Mahler HC. Equilibrium studies of protein aggregates and homogeneous nucleation in protein formulation. J Pharm Sci 2010; 99:632-44. [DOI: 10.1002/jps.21858] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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22
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Mahler HC, Friess W, Grauschopf U, Kiese S. Protein aggregation: pathways, induction factors and analysis. J Pharm Sci 2009; 98:2909-34. [PMID: 18823031 DOI: 10.1002/jps.21566] [Citation(s) in RCA: 614] [Impact Index Per Article: 40.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Control and analysis of protein aggregation is an increasing challenge to pharmaceutical research and development. Due to the nature of protein interactions, protein aggregation may occur at various points throughout the lifetime of a protein and may be of different quantity and quality such as size, shape, morphology. It is therefore important to understand the interactions, causes and analyses of such aggregates in order to control protein aggregation to enable successful products. This review gives a short outline of currently discussed pathways and induction methods for protein aggregation and describes currently employed set of analytical techniques and emerging technologies for aggregate detection, characterization and quantification. A major challenge for the analysis of protein aggregates is that no single analytical method exists to cover the entire size range or type of aggregates which may appear. Each analytical method not only shows its specific advantages but also has its limitations. The limits of detection and the possibility of creating artifacts through sample preparation by inducing or destroying aggregates need to be considered with each method used. Therefore, it may also be advisable to carefully compare analytical results of orthogonal methods for similar size ranges to evaluate method performance.
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Affiliation(s)
- Hanns-Christian Mahler
- Formulation R&D Biologics, Pharmaceutical and Analytical R&D, F. Hoffmann-La Roche Ltd., Basel, Switzerland.
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23
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A simple and reproducible approach to characterize protein stability using rheology. Int J Pharm 2009; 374:1-4. [DOI: 10.1016/j.ijpharm.2009.03.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2009] [Revised: 03/24/2009] [Accepted: 03/26/2009] [Indexed: 11/16/2022]
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24
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Flatman S, Alam I, Gerard J, Mussa N. Process analytics for purification of monoclonal antibodies. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 848:79-87. [PMID: 17161664 DOI: 10.1016/j.jchromb.2006.11.018] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2006] [Revised: 11/10/2006] [Accepted: 11/13/2006] [Indexed: 11/30/2022]
Abstract
The application of appropriate analytical methods is an essential requirement for the purification of therapeutic antibodies. A range of analytical methods need to be employed to effectively determine the purity, identity, integrity and activity of these important class of pharmaceuticals. These include notably electrophoresis, high performance liquid chromatography and immunoassays. Regulatory and industry demands in recent years have brought the need for improvements and many have been successfully implemented. This article reviews the current analytical methods applied to support the purification of monoclonal antibodies.
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Affiliation(s)
- Stephen Flatman
- Lonza Biologics Plc, 228 Bath Road, Slough, Berkshire SL1 4DX, UK.
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