151
|
Lenton S, Hervø-Hansen S, Popov AM, Tully MD, Lund M, Skepö M. Impact of Arginine-Phosphate Interactions on the Reentrant Condensation of Disordered Proteins. Biomacromolecules 2021; 22:1532-1544. [PMID: 33730849 PMCID: PMC8045028 DOI: 10.1021/acs.biomac.0c01765] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Re-entrant condensation results in the formation of a condensed protein regime between two critical ion concentrations. The process is driven by neutralization and inversion of the protein charge by oppositely charged ions. Re-entrant condensation of cationic proteins by the polyvalent anions, pyrophosphate and tripolyphosphate, has previously been observed, but not for citrate, which has similar charge and size compared to the polyphosphates. Therefore, besides electrostatic interactions, other specific interactions between the polyphosphate ions and proteins must contribute. Here, we show that additional attractive interactions between arginine and tripolyphosphate determine the re-entrant condensation and decondensation boundaries of the cationic, intrinsically disordered saliva protein, histatin 5. Furthermore, we show by small-angle X-ray scattering (SAXS) that polyvalent anions cause compaction of histatin 5, as would be expected based solely on electrostatic interactions. Hence, we conclude that arginine-phosphate-specific interactions not only regulate solution properties but also influence the conformational ensemble of histatin 5, which is shown to vary with the number of arginine residues. Together, the results presented here provide further insight into an organizational mechanism that can be used to tune protein interactions in solution of both naturally occurring and synthetic proteins.
Collapse
Affiliation(s)
- Samuel Lenton
- Theoretical Chemistry, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden
| | - Stefan Hervø-Hansen
- Theoretical Chemistry, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden
| | - Anton M Popov
- BM29 BIOSAXS, European Synchroton Radiation Facility, 71 avenue des Martyrs, Grenoble, Isère 38043, France
| | - Mark D Tully
- BM29 BIOSAXS, European Synchroton Radiation Facility, 71 avenue des Martyrs, Grenoble, Isère 38043, France
| | - Mikael Lund
- Theoretical Chemistry, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden.,LINXS-Lund Institute of Advanced Neutron and X-ray Science, Scheelevägen 19, SE-223 70 Lund, Sweden
| | - Marie Skepö
- Theoretical Chemistry, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden.,LINXS-Lund Institute of Advanced Neutron and X-ray Science, Scheelevägen 19, SE-223 70 Lund, Sweden
| |
Collapse
|
152
|
Zhao H, Zhou X, Wang J, Ma X, Guo M, Liu D. Heat-induced hollow microcapsule formation using fava bean legumin. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106207] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
153
|
Jiang L, Li S, Wang N, Zhao S, Chen Y, Chen Y. Preparation of dextran-casein phosphopeptide conjugates, evaluation of its calcium binding capacity and digestion in vitro. Food Chem 2021; 352:129332. [PMID: 33690075 DOI: 10.1016/j.foodchem.2021.129332] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/28/2021] [Accepted: 02/07/2021] [Indexed: 11/16/2022]
Abstract
In order to construct a novel and efficient calcium delivery system, a dextran- casein phosphopeptide (CPP) conjugates as calcium carrier was prepared by Maillard reaction of CPP and dextran. The preparation of the conjugates, construction of calcium delivery system and digestion in vitro were studied. The grafting rate of conjugates, which was confirmed by migration and intensity changes in the characteristic peaks using ultraviolet-visible and Fourier transform infrared spectroscopy, reached 48.88%. The microscopy showed CPP was coated with dextran, the conjugates with a kind of "shell-core" structure had excellent stability. Compared with CPP, the chelating rate of conjugates increased from 6.0% to 13.87%, and the calcium retention rate improved from 1.09% to 7.90% in vitro digestion. The calcium binding capacity and effect of controlled release of the conjugates were superior to those of CPP. Therefore, the conjugates could be used as an effective carrier for new calcium supplements.
Collapse
Affiliation(s)
- Lan Jiang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science & Technology, No. 29, No. 13 Ave., TEDA, Tianjin 300457, China
| | - Shuhong Li
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science & Technology, No. 29, No. 13 Ave., TEDA, Tianjin 300457, China
| | - Nan Wang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science & Technology, No. 29, No. 13 Ave., TEDA, Tianjin 300457, China
| | - Shuang Zhao
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science & Technology, No. 29, No. 13 Ave., TEDA, Tianjin 300457, China
| | - Yue Chen
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science & Technology, No. 29, No. 13 Ave., TEDA, Tianjin 300457, China
| | - Ye Chen
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science & Technology, No. 29, No. 13 Ave., TEDA, Tianjin 300457, China.
| |
Collapse
|
154
|
Zhang Z, Marie Woys A, Hong K, Grapentin C, Khan TA, Zarraga IE, Wagner NJ, Liu Y. Adsorption of non-ionic surfactant and monoclonal antibody on siliconized surface studied by neutron reflectometry. J Colloid Interface Sci 2021; 584:429-438. [PMID: 33091867 PMCID: PMC11165629 DOI: 10.1016/j.jcis.2020.09.110] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 09/25/2020] [Accepted: 09/26/2020] [Indexed: 11/15/2022]
Abstract
The adsorption of monoclonal antibodies (mAbs) on hydrophobic surfaces is known to cause protein aggregation and degradation. Therefore, surfactants, such as Poloxamer 188, are widely used in therapeutic formulations to stabilize mAbs and protect mAbs from interacting with liquid-solid interfaces. Here, the adsorption of Poloxamer 188, one mAb and their competitive adsorption on a model hydrophobic siliconized surface is investigated with neutron scattering coupled with contrast variation to determine the molecular structure of adsorbed layers for each case. Small angle neutron scattering measurements of the affinity of Poloxamer 188 to this mAb indicate that there is negligible binding at these solution conditions. Neutron reflectometry measurements of the mAb show irreversible adsorption on the siliconized surface, which cannot be washed off with neat buffer. Poloxamer 188 can be adsorbed on the surface already occupied by mAb, which enables partial removal of some adsorbed mAb by washing with buffer. The adsorption of the surfactant introduces significant conformational changes for mAb molecules that remain on the surface. In contrast, if the siliconized surface is first saturated with the surfactant, no adsorption of mAb is observed. Competitive adsorption of mAb and Poloxamer 188 from solution leads to a surface dominantly occupied with surfactant molecules, whereas only a minor amount of mAb absorbs. These findings clearly indicate that Poloxamer 188 can protect against mAb adsorption as well as modify the adsorbed conformation of previously adsorbed mAb.
Collapse
Affiliation(s)
- Zhenhuan Zhang
- Center for Neutron Research, National Institute of Standards and Technology. Gaithersburg, MD 20899, USA; Center for Neutron Science, Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, USA
| | - Ann Marie Woys
- Department of Late Stage Pharmaceutical Development, Genentech Inc., San Francisco, CA 94080, USA
| | - Kunlun Hong
- The Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Christoph Grapentin
- Pharmaceutical Development and Supplies, Pharma Technical Development, F.Hoffmann-La Roche Ltd, Basel, Switzerland
| | - Tarik A Khan
- Pharmaceutical Development and Supplies, Pharma Technical Development, F.Hoffmann-La Roche Ltd, Basel, Switzerland
| | - Isidro E Zarraga
- Department of Late Stage Pharmaceutical Development, Genentech Inc., San Francisco, CA 94080, USA
| | - Norman J Wagner
- Center for Neutron Science, Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, USA.
| | - Yun Liu
- Center for Neutron Research, National Institute of Standards and Technology. Gaithersburg, MD 20899, USA; Center for Neutron Science, Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, USA.
| |
Collapse
|
155
|
Rodrigues RM, Pereira RN, Vicente AA, Cavaco-Paulo A, Ribeiro A. Ohmic heating as a new tool for protein scaffold engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 120:111784. [PMID: 33545911 DOI: 10.1016/j.msec.2020.111784] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/11/2020] [Accepted: 12/02/2020] [Indexed: 11/15/2022]
Abstract
Ohmic heating (OH) is recognised as an emerging processing technology which recently is gaining increasing attention due to its ability to induce and control protein functionality. In this study, OH was used for the first time in the production of scaffolds for tissue engineering. BSA/casein solutions were processed by OH, promoting protein denaturation and aggregation, followed by cold-gelation through the addition of Ca2+. The formation of stable scaffolds was mostly dependent on the temperature and treatment time during OH processing. The variations of the electric field (EF) induced changes in the functional properties of both gel forming solutions and final scaffolds (contact angle, swelling, porosity, compressive modulus and degradation rate). The scaffolds' biological performance was evaluated regarding their ability to support the adhesion and proliferation of human fibroblast cells. The production process resulted in a non-cytotoxic material and the changes imposed by the presence of the EF during the scaffolds' production improved cellular proliferation and metabolic activity. Protein functionalization assisted by OH presents a promising new alternative for the production of improved and tuneable protein-based scaffolds for tissue engineering.
Collapse
Affiliation(s)
- Rui M Rodrigues
- CEB-Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal.
| | - Ricardo N Pereira
- CEB-Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - António A Vicente
- CEB-Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Artur Cavaco-Paulo
- CEB-Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Artur Ribeiro
- CEB-Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| |
Collapse
|
156
|
Kaufmann B, Boulle P, Berthou F, Fournier M, Beran D, Ciglenecki I, Townsend M, Schmidt G, Shah M, Cristofani S, Cavailler P, Foti M, Scapozza L. Heat-stability study of various insulin types in tropical temperature conditions: New insights towards improving diabetes care. PLoS One 2021; 16:e0245372. [PMID: 33534816 PMCID: PMC7857579 DOI: 10.1371/journal.pone.0245372] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 12/29/2020] [Indexed: 01/08/2023] Open
Abstract
Strict storage recommendations for insulin are difficult to follow in hot tropical regions and even more challenging in conflict and humanitarian emergency settings, adding an extra burden to the management of people with diabetes. According to pharmacopeia unopened insulin vials must be stored in a refrigerator (2-8°C), while storage at ambient temperature (25-30°C) is usually permitted for the 4-week usage period during treatment. In the present work we address a critical question towards improving diabetes care in resource poor settings, namely whether insulin is stable and retains biological activity in tropical temperatures during a 4-week treatment period. To answer this question, temperature fluctuations were measured in Dagahaley refugee camp (Northern Kenya) using log tag recorders. Oscillating temperatures between 25 and 37°C were observed. Insulin heat stability was assessed under these specific temperatures which were precisely reproduced in the laboratory. Different commercialized formulations of insulin were quantified weekly by high performance liquid chromatography and the results showed perfect conformity to pharmacopeia guidelines, thus confirming stability over the assessment period (four weeks). Monitoring the 3D-structure of the tested insulin by circular dichroism confirmed that insulin monomer conformation did not undergo significant modifications. The measure of insulin efficiency on insulin receptor (IR) and Akt phosphorylation in hepatic cells indicated that insulin bioactivity of the samples stored at oscillating temperature during the usage period is identical to that of the samples maintained at 2-8°C. Taken together, these results indicate that insulin can be stored at such oscillating ambient temperatures for the usual four-week period of use. This enables the barrier of cold storage during use to be removed, thereby opening up the perspective for easier management of diabetes in humanitarian contexts and resource poor settings.
Collapse
Affiliation(s)
- Beatrice Kaufmann
- Pharmaceutical Biochemistry, School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
| | | | - Flavien Berthou
- Faculty of Medicine, Department of Cell Physiology and Metabolism, University of Geneva, Geneva, Switzerland
| | - Margot Fournier
- Faculty of Medicine, Department of Cell Physiology and Metabolism, University of Geneva, Geneva, Switzerland
| | - David Beran
- Division of Tropical and Humanitarian Medicine, University of Geneva and Geneva University Hospitals, Geneva, Switzerland
| | - Iza Ciglenecki
- Médecins Sans Frontières Switzerland, Geneva, Switzerland
| | | | | | - Maya Shah
- Médecins Sans Frontières Switzerland, Geneva, Switzerland
| | | | | | - Michelangelo Foti
- Faculty of Medicine, Department of Cell Physiology and Metabolism, University of Geneva, Geneva, Switzerland
| | - Leonardo Scapozza
- Pharmaceutical Biochemistry, School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
| |
Collapse
|
157
|
Liu F, Shah DS, Gadd GM. Role of Protein in Fungal Biomineralization of Copper Carbonate Nanoparticles. Curr Biol 2021; 31:358-368.e3. [PMID: 33176131 DOI: 10.1016/j.cub.2020.10.044] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/12/2020] [Accepted: 10/14/2020] [Indexed: 11/15/2022]
Abstract
Biomineralization processes are of key importance in the biogeochemical cycling of metals and other elements by microorganisms, and several studies have highlighted the potential applications of nanoparticle synthesis via biomineralization. The roles played by proteins in the transformation and biologically induced biomineralization of metals by microorganisms is not well understood, despite the interactions of protein and nanoparticles at mineral interfaces attracting much interest in various emerging fields for novel biomaterial synthesis. Here, we have elucidated the association and involvement of fungal proteins in the formation of biogenic copper carbonate nanoparticles (CuNPs) using a carbonate-enriched biomass-free ureolytic fungal culture supernatant. Proteomic analysis was conducted that identified the major proteins present in the culture supernatant. Of the proteins identified, triosephosphate isomerase (TPI) exhibited a strong affinity to the CuNPs, and the impact of purified TPI on CuNP formation was studied in detail. The combined use of scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM) confirmed that TPI played an important role in controlling the morphology and structure of the nanomaterials. Fourier transform infrared spectroscopy (FTIR) was applied to examine conformational changes of the proteins to further clarity the interaction mechanisms with CuNPs during biomineralization. Such analyses revealed unfolding of proteins on the mineral surface and an increase in β sheets within the protein structure. These results extend understanding of how microbial systems can influence biomineral formation through protein secretion, the mechanisms involved in formation of complex protein/inorganic systems, and provide useful guidelines for the synthesis of inorganic-protein based nanomaterials.
Collapse
Affiliation(s)
- Feixue Liu
- Geomicrobiology Group, School of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, UK
| | - Dinesh Singh Shah
- Division of Cell Signalling and Immunology, School of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, UK
| | - Geoffrey Michael Gadd
- Geomicrobiology Group, School of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, UK; State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Oil and Gas Pollution Control, College of Chemical Engineering and Environment, China University of Petroleum, Beijing 102249, China.
| |
Collapse
|
158
|
Zhu C, Jin H, Yin F, Cui W, Zhang Q, Zhao G. Emulsion‐forming properties of heat‐induced pork myofibrillar protein affected by NaCl. Int J Food Sci Technol 2021. [DOI: 10.1111/ijfs.14945] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Chao‐Zhi Zhu
- Henan Key Lab of Meat Processing and Quality Safety Control Henan Agricultural University Zhengzhou450002China
- College of Food Science and Technology Henan Agricultural University Zhengzhou450002China
| | - Hao‐Quan Jin
- Henan Key Lab of Meat Processing and Quality Safety Control Henan Agricultural University Zhengzhou450002China
- College of Food Science and Technology Henan Agricultural University Zhengzhou450002China
| | - Feng Yin
- Henan Key Lab of Meat Processing and Quality Safety Control Henan Agricultural University Zhengzhou450002China
- College of Food Science and Technology Henan Agricultural University Zhengzhou450002China
| | - Wen‐Ming Cui
- Henan Key Lab of Meat Processing and Quality Safety Control Henan Agricultural University Zhengzhou450002China
- College of Food Science and Technology Henan Agricultural University Zhengzhou450002China
| | - Qiu‐Hui Zhang
- Henan Key Lab of Meat Processing and Quality Safety Control Henan Agricultural University Zhengzhou450002China
- College of Food Science and Technology Henan Agricultural University Zhengzhou450002China
| | - Gai‐Ming Zhao
- Henan Key Lab of Meat Processing and Quality Safety Control Henan Agricultural University Zhengzhou450002China
- College of Food Science and Technology Henan Agricultural University Zhengzhou450002China
| |
Collapse
|
159
|
Guckeisen T, Hosseinpour S, Peukert W. Effect of pH and urea on the proteins secondary structure at the water/air interface and in solution. J Colloid Interface Sci 2021; 590:38-49. [PMID: 33524719 DOI: 10.1016/j.jcis.2021.01.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/05/2021] [Accepted: 01/06/2021] [Indexed: 01/09/2023]
Abstract
HYPOTHESIS The secondary structure of proteins affects their functionality and performance in physiological environments or industrial applications. Change of the solution pH or the presence of protein denaturants are the main chemical means that can alter the secondary structure of proteins or lead to protein denaturation. Since proteins in the bulk solution and those residing at the solution/air interface experience different local environments, their response to chemical denaturation can be different. EXPERIMENTS We utilize circular dichroism and chiral/achiral sum frequency generation spectroscopy to study the secondary structure of selected proteins as a function of the solution pH or in the presence of 8 M urea in the bulk solution and at the solution/air interface, respectively. FINDINGS The liquid/air interface can enhance or decrease protein conformation stability. The change in the secondary structure of the surface adsorbed proteins in alkaline solutions occurs at pH values lower than those denaturing the studied proteins in the bulk solution. In contrast, while 8 M urea completely denatures the studied proteins in the bulk solution, the liquid/air interface prevents the urea-induced denaturation of the surface adsorbed proteins by limiting the access of urea to the hydrophobic side chains of proteins protruding to air.
Collapse
Affiliation(s)
- Tobias Guckeisen
- Institute of Particle Technology (LFG), Friedrich-Alexander-Universität-Erlangen-Nürnberg (FAU), Cauerstraße 4, 91058 Erlangen, Germany.
| | - Saman Hosseinpour
- Institute of Particle Technology (LFG), Friedrich-Alexander-Universität-Erlangen-Nürnberg (FAU), Cauerstraße 4, 91058 Erlangen, Germany.
| | - Wolfgang Peukert
- Institute of Particle Technology (LFG), Friedrich-Alexander-Universität-Erlangen-Nürnberg (FAU), Cauerstraße 4, 91058 Erlangen, Germany.
| |
Collapse
|
160
|
Krause N, Kuhn S, Frotscher E, Nikels F, Hawe A, Garidel P, Menzen T. Oil-Immersion Flow Imaging Microscopy for Quantification and Morphological Characterization of Submicron Particles in Biopharmaceuticals. AAPS JOURNAL 2021; 23:13. [PMID: 33398482 DOI: 10.1208/s12248-020-00547-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 12/01/2020] [Indexed: 12/31/2022]
Abstract
Flow imaging microscopy (FIM) is widely used to analyze subvisible particles starting from 2 μm in biopharmaceuticals. Recently, an oil-immersion FIM system emerged, the FlowCam Nano, designed to enable the characterization of particle sizes even below 2 μm. The aim of our study was to evaluate oil-immersion FIM (by using FlowCam Nano) in comparison to microfluidic resistive pulse sensing and resonant mass measurement for sizing and counting of particles in the submicron range. Polystyrene beads, a heat-stressed monoclonal antibody formulation and a silicone oil emulsion, were measured to assess the performance on biopharmaceutical relevant samples, as well as the ability to distinguish particle types based on instrument-derived morphological parameters. The determination of particle sizes and morphologies suffers from inaccuracies due to a low image contrast of small particles and light-scattering effects. The ill-defined measured volume impairs an accurate concentration determination. Nevertheless, FlowCam Nano in its current design complements the limited toolbox of submicron particle analysis of biopharmaceuticals by providing particle images in a size range that was previously not accessible with commercial FIM instruments.
Collapse
Affiliation(s)
- Nils Krause
- Coriolis Pharma Research GmbH, Fraunhoferstr. 18 b, 82152, Martinsried, Germany
| | - Sebastian Kuhn
- Boehringer Ingelheim Pharma GmbH & Co. KG, Birkendorfer Str. 65, 88397, Biberach an der Riss, Germany
| | - Erik Frotscher
- Boehringer Ingelheim Pharma GmbH & Co. KG, Birkendorfer Str. 65, 88397, Biberach an der Riss, Germany
| | - Felix Nikels
- Boehringer Ingelheim Pharma GmbH & Co. KG, Birkendorfer Str. 65, 88397, Biberach an der Riss, Germany
| | - Andrea Hawe
- Coriolis Pharma Research GmbH, Fraunhoferstr. 18 b, 82152, Martinsried, Germany
| | - Patrick Garidel
- Boehringer Ingelheim Pharma GmbH & Co. KG, Birkendorfer Str. 65, 88397, Biberach an der Riss, Germany
| | - Tim Menzen
- Coriolis Pharma Research GmbH, Fraunhoferstr. 18 b, 82152, Martinsried, Germany.
| |
Collapse
|
161
|
Romero-Montero A, Aguirre-Díaz IS, Puiggalí J, del Valle LJ, Gimeno M. Self-assembly of supramolecular chemoenzymatic poly- l-phenylalanine. Polym Chem 2021. [DOI: 10.1039/d0py01659d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The self-assembly behavior of chemoenzymatic high molecular weight (ca. 30 000 Da) poly-l-phenylalanine (ePLP) and the nano-morphologies thereof are investigated.
Collapse
Affiliation(s)
- Alejandra Romero-Montero
- Depto. de Alimentos y Biotecnología
- Facultad de Química
- Universidad Nacional Autónoma de México
- 04510 CDMX
- Mexico
| | - Isabel S. Aguirre-Díaz
- Depto. de Alimentos y Biotecnología
- Facultad de Química
- Universidad Nacional Autónoma de México
- 04510 CDMX
- Mexico
| | - Jordi Puiggalí
- Chemical Engineering Department
- Escola d'Enginyeria de Barcelona Est-EEBE
- 08019 Barcelona
- Spain
- Institute for Bioengineering of Catalonia (IBEC)
| | - Luis J. del Valle
- Chemical Engineering Department
- Escola d'Enginyeria de Barcelona Est-EEBE
- 08019 Barcelona
- Spain
| | - Miquel Gimeno
- Depto. de Alimentos y Biotecnología
- Facultad de Química
- Universidad Nacional Autónoma de México
- 04510 CDMX
- Mexico
| |
Collapse
|
162
|
Meyer RM, Berger L, Nerkamp J, Scheler S, Nehring S, Friess W. Identification of monoclonal antibody variants involved in aggregate formation – Part 1: Charge variants. Eur J Pharm Biopharm 2021; 158:123-131. [DOI: 10.1016/j.ejpb.2020.10.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 10/20/2020] [Accepted: 10/26/2020] [Indexed: 11/27/2022]
|
163
|
Bardhan M, Dolui S, Chaudhuri S, Paul U, Bhattacharjee G, Ghosal M, Maiti NC, Mukhopadhyay D, Senapati D. Impact of porous nanomaterials on inhibiting protein aggregation behaviour. RSC Adv 2021; 11:3354-3362. [PMID: 35424305 PMCID: PMC8693984 DOI: 10.1039/d0ra10927d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 12/31/2020] [Indexed: 11/21/2022] Open
Abstract
Aggregation of intrinsically disordered as well as the ordered proteins under certain premises or physiological conditions leads to pathological disorder. Here we have presented a detailed investigation on the effect of a porous metallic (Au) and a non-metallic (Si) nanomaterial on the formation of ordered (fiber-like/amyloid) and disordered (amorphous) aggregates of proteins. Porous nanogold (PNG) was found to reduce the amyloid aggregation of insulin but does not have much impact on the lag phase in the aggregation kinetics, whereas porous nano-silica (PNS) was found both to decrease the amount of aggregation as well as prolong the lag phase of amyloid fiber formation from insulin. On the other hand, both the porous nanoparticles are found to decrease the extent of amorphous aggregation (with slight improvement for PNS) of pathogenic huntingtin (Htt) protein in Huntington's disease cell model. This is a noted direct observation in controlling and understanding protein aggregation diseases which may help us to formulate nanotherapeutic drugs for future clinical applications. Aggregation of intrinsically disordered as well as the ordered proteins under certain premises or physiological conditions leads to pathological disorder.![]()
Collapse
Affiliation(s)
- Munmun Bardhan
- Chemical Sciences Division
- Saha Institute of Nuclear Physics
- Kolkata 700064
- India
| | - Sandip Dolui
- Indian Institute of Chemical Biology
- Kolkata-700032
- India
| | - Siddhi Chaudhuri
- Biophysics and Structural Genomics Division
- Saha Institute of Nuclear Physics
- Kolkata 700064
- India
| | - Uttam Paul
- Chemical Sciences Division
- Saha Institute of Nuclear Physics
- Kolkata 700064
- India
| | | | - Manorama Ghosal
- Chemical Sciences Division
- Saha Institute of Nuclear Physics
- Kolkata 700064
- India
| | - Nakul C. Maiti
- Biophysics and Structural Genomics Division
- Saha Institute of Nuclear Physics
- Kolkata 700064
- India
| | - Debashis Mukhopadhyay
- Biophysics and Structural Genomics Division
- Saha Institute of Nuclear Physics
- Kolkata 700064
- India
| | - Dulal Senapati
- Chemical Sciences Division
- Saha Institute of Nuclear Physics
- Kolkata 700064
- India
| |
Collapse
|
164
|
Moradi S, Moradi P, Ansari M, Khosravi R, Farhadian N, Batooie N, Shahlaei M. Investigating the protective effects of carbohydrate coatings on the structure and dynamic of l‐asparaginase against heat stress; a molecular dynamic simulation. INFORMATICS IN MEDICINE UNLOCKED 2021. [DOI: 10.1016/j.imu.2021.100689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
|
165
|
Sruthi L, Srivastava V, Schmidt LE, Deshpande AP, Varughese S. Contributions from microstructural changes to the rheological behavior of casein dispersions during drying. SOFT MATTER 2020; 16:10954-10968. [PMID: 33146222 DOI: 10.1039/d0sm00992j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In several applications, a protein such as casein in dispersion form undergoes multiple processing steps including drying. In this work, the rheological and microstructural features of casein dispersions concentrated by evaporation of the solvent (drying dispersions) were studied in comparison with those of equal concentrations of the as-prepared dispersions without drying. The molecular assembly of casein is affected by drying along with the conformational composition changes in the secondary structures such as α-helix, β-sheets, turns and random structures of the protein. Modeling of the rheological data indicates that these changes also affect the packing of casein molecular assemblies and these molecular assemblies in alkaline dispersions can behave as soft deformable particles. During drying, casein dispersions show prominent shear thinning for concentrations higher than 20 wt% along with the prevalence of α-helices and β-sheets. In comparison, the as-prepared dispersions show different microstructural features, and therefore different rheological responses. A detailed analysis shows that alkalinity changes during drying is the crucial factor controlling the microstructural changes of the soft casein particles and hence the rheology.
Collapse
Affiliation(s)
- Lalitha Sruthi
- Department of Chemical Engineering, Indian Institute of Technology, Madras, India.
| | | | | | | | | |
Collapse
|
166
|
Hershewe JM, Wiseman WD, Kath JE, Buck CC, Gupta MK, Dennis PB, Naik RR, Jewett MC. Characterizing and Controlling Nanoscale Self-Assembly of Suckerin-12. ACS Synth Biol 2020; 9:3388-3399. [PMID: 33201684 DOI: 10.1021/acssynbio.0c00442] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Structural proteins such as "suckerins" present promising avenues for fabricating functional materials. Suckerins are a family of naturally occurring block copolymer-type proteins that comprise the sucker ring teeth of cephalopods and are known to self-assemble into supramolecular networks of nanoconfined β-sheets. Here, we report the characterization and controllable, nanoscale self-assembly of suckerin-12 (S12). We characterize the impacts of salt, pH, and protein concentration on S12 solubility, secondary structure, and self-assembly. In doing so, we identify conditions for fabricating ∼100 nm nanoassemblies (NAs) with narrow size distributions. Finally, by installing a noncanonical amino acid (ncAA) into S12, we demonstrate the assembly of NAs that are covalently conjugated with a hydrophobic fluorophore and the ability to change self-assembly and β-sheet content by PEGylation. This work presents new insights into the biochemistry of suckerin-12 and demonstrates how ncAAs can be used to expedite and fine-tune the design of protein materials.
Collapse
Affiliation(s)
- Jasmine M. Hershewe
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Technological Institute E136, Evanston, Illinois 60208−3120, United States
- Chemistry of Life Processes Institute, Northwestern University, 2170 Campus Drive, Evanston, Illinois 60208−3120, United States
- Center for Synthetic Biology, Northwestern University, 2145 Sheridan Road, Technological Institute E136, Evanston, Illinois 60208−3120, United States
| | - William D. Wiseman
- Chemistry of Life Processes Institute, Northwestern University, 2170 Campus Drive, Evanston, Illinois 60208−3120, United States
- Center for Synthetic Biology, Northwestern University, 2145 Sheridan Road, Technological Institute E136, Evanston, Illinois 60208−3120, United States
- Master of Biotechnology Program, Technological Institute, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208−3120, United States
| | - James E. Kath
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Technological Institute E136, Evanston, Illinois 60208−3120, United States
- Chemistry of Life Processes Institute, Northwestern University, 2170 Campus Drive, Evanston, Illinois 60208−3120, United States
- Center for Synthetic Biology, Northwestern University, 2145 Sheridan Road, Technological Institute E136, Evanston, Illinois 60208−3120, United States
| | - Chelsea C. Buck
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio 45433, United States
- Chemical and Materials Engineering Department, University of Dayton, 300 College Park Avenue, Dayton, Ohio 45469, United States
| | - Maneesh K. Gupta
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio 45433, United States
| | - Patrick B. Dennis
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio 45433, United States
| | - Rajesh R. Naik
- 711th Human Performance Wing, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio 45433, United States
| | - Michael C. Jewett
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Technological Institute E136, Evanston, Illinois 60208−3120, United States
- Chemistry of Life Processes Institute, Northwestern University, 2170 Campus Drive, Evanston, Illinois 60208−3120, United States
- Center for Synthetic Biology, Northwestern University, 2145 Sheridan Road, Technological Institute E136, Evanston, Illinois 60208−3120, United States
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University, 676 North Saint Clair Street, Suite 1200, Chicago, Illinois 60611−3068, United States
- Simpson Querrey Institute, Northwestern University, 303 East Superior Street, Suite 11-131, Chicago, Illinois 60611−2875, United States
| |
Collapse
|
167
|
Rodrigues D, Tanenbaum LM, Thirumangalathu R, Somani S, Zhang K, Kumar V, Amin K, Thakkar SV. Product-Specific Impact of Viscosity Modulating Formulation Excipients During Ultra-High Concentration Biotherapeutics Drug Product Development. J Pharm Sci 2020; 110:1077-1082. [PMID: 33340533 DOI: 10.1016/j.xphs.2020.12.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/16/2020] [Accepted: 12/14/2020] [Indexed: 12/16/2022]
Abstract
Developing ultra-high concentration biotherapeutics drug products can be challenging due to increased viscosity, processing, and stability issues. Excipients used to alleviate these concerns are traditionally evaluated at lower protein concentrations. This study investigates whether classically known modulators of stability and viscosity at low (<50 mg/mL) to high (>50 - 150 mg/mL) protein concentrations are beneficial in ultra-high (>150 mg/mL) concentration protein formulations and drug products. This study evaluates the effect of arginine monohydrochloride, proline, and lysine monohydrochloride on viscosity and concentratability at different high and ultra-high protein concentrations using a monoclonal antibody, mAbN, formulation as a candidate protein system. The effect of excipients on the viscosity and concentratability (rate and extent) was different at high versus ultra-high protein concentrations. These results highlight that classical excipients in literature known to modulate protein interactions at low protein concentrations and reduce viscosity at high protein concentrations may need to be evaluated at target protein concentrations in a product-specific manner while developing ultra-high concentration biologics drug products.
Collapse
Affiliation(s)
- Danika Rodrigues
- BioTherapeutics Drug Product Development (BioTD DPD), Janssen Research and Development (Janssen R&D), Malvern, Pennsylvania 19355
| | - Laura M Tanenbaum
- BioTherapeutics Drug Product Development (BioTD DPD), Janssen Research and Development (Janssen R&D), Malvern, Pennsylvania 19355
| | - Renuka Thirumangalathu
- BioTherapeutics Drug Product Development (BioTD DPD), Janssen Research and Development (Janssen R&D), Malvern, Pennsylvania 19355
| | - Sandeep Somani
- Discovery Sciences, Janssen Research and Development (Janssen R&D), Spring House, Pennsylvania 19477
| | - Kai Zhang
- BioTherapeutics Drug Product Development (BioTD DPD), Janssen Research and Development (Janssen R&D), Malvern, Pennsylvania 19355
| | - Vineet Kumar
- BioTherapeutics Drug Product Development (BioTD DPD), Janssen Research and Development (Janssen R&D), Malvern, Pennsylvania 19355
| | - Ketan Amin
- BioTherapeutics Drug Product Development (BioTD DPD), Janssen Research and Development (Janssen R&D), Malvern, Pennsylvania 19355
| | - Santosh V Thakkar
- BioTherapeutics Drug Product Development (BioTD DPD), Janssen Research and Development (Janssen R&D), Malvern, Pennsylvania 19355; BioTherapeutics Cell and Developability Sciences (BioTD CDS), Janssen Research and Development (Janssen R&D), Spring House, Pennsylvania 19477.
| |
Collapse
|
168
|
Gudapati H, Parisi D, Colby RH, Ozbolat IT. Rheological investigation of collagen, fibrinogen, and thrombin solutions for drop-on-demand 3D bioprinting. SOFT MATTER 2020; 16:10506-10517. [PMID: 33073269 DOI: 10.1039/d0sm01455a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Collagen, fibrinogen, and thrombin proteins in aqueous buffer solutions are widely used as precursors of natural biopolymers in three-dimensional (3D) bioprinting applications. The proteins are sourced from animals and their quality may vary from batch to batch, inducing differences in the rheological properties of such solutions. In this work, we investigate the rheological response of collagen, fibrinogen, and thrombin protein solutions in bulk and at the solution/air interface. Interfacial rheological measurements show that fibrous collagen, fibrinogen and globular thrombin proteins adsorb and aggregate at the solution/air interface, forming a viscoelastic solid film at the interface. The viscoelastic film corrupts the bulk rheological measurements in rotational rheometers by contributing to an apparent yield stress, which increases the apparent bulk viscosity up to shear rates as high as 1000 s-1. The addition of a non-ionic surfactant, such as polysorbate 80 (PS80) in small amounts between 0.001 and 0.1 v/v%, prevents the formation of the interfacial layer, allowing the estimation of true bulk viscosity of the solutions. The estimation of viscosity not only helps in identifying those protein solutions that are potentially printable with drop-on-demand (DOD) inkjet printing but also detects inconsistencies in flow behavior among the batches.
Collapse
Affiliation(s)
- Hemanth Gudapati
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA.
| | | | | | | |
Collapse
|
169
|
Dos Santos NV, Saponi CF, Ryan TM, Primo FL, Greaves TL, Pereira JFB. Reversible and irreversible fluorescence activity of the Enhanced Green Fluorescent Protein in pH: Insights for the development of pH-biosensors. Int J Biol Macromol 2020; 164:3474-3484. [PMID: 32882278 DOI: 10.1016/j.ijbiomac.2020.08.224] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/09/2020] [Accepted: 08/28/2020] [Indexed: 11/17/2022]
Abstract
Enhanced Green Fluorescent Protein (EGFP) is a biomolecule with intense and natural fluorescence, with biological and medical applications. Although widely used as a biomarker in research, its application as a biosensor is limited by the lack of in-depth knowledge regarding its structure and behavior in adverse conditions. This study is focused on addressing this need by evaluating EGFP activity and structure at different pH using three-dimensional fluorescence, circular dichroism and small-angle X-ray scattering. The focus was on the reversibility of the process to gain insights for the development of biocompatible pH-biosensors. EGFP was highly stable at alkaline pH and quenched from neutral-to-acidic pH. Above pH 6.0, the fluorescence loss was almost completely reversible on return to neutral pH, but only partially reversible from pH 5.0 to 2.0. This work updates the knowledge regarding EGFP behavior in pH by accounting for the recent data on its structure. Hence, it is evident that EGFP presents the required properties for use as natural, biocompatible and environmentally friendly neutral to acidic pH-biosensors.
Collapse
Affiliation(s)
- Nathalia Vieira Dos Santos
- Department of Engineering of Bioprocesses and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Rodovia Araraquara-Jaú/Km 01, 14800-903 Araraquara, SP, Brazil; School of Science, College of Science, Engineering and Health, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia
| | - Carolina Falaschi Saponi
- Department of Engineering of Bioprocesses and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Rodovia Araraquara-Jaú/Km 01, 14800-903 Araraquara, SP, Brazil; School of Science, College of Science, Engineering and Health, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia
| | - Timothy M Ryan
- Australian Synchrotron, 800 Blackburn Road, Clayton, VIC 3168, Australia
| | - Fernando L Primo
- Department of Engineering of Bioprocesses and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Rodovia Araraquara-Jaú/Km 01, 14800-903 Araraquara, SP, Brazil
| | - Tamar L Greaves
- School of Science, College of Science, Engineering and Health, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia
| | - Jorge F B Pereira
- Department of Engineering of Bioprocesses and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Rodovia Araraquara-Jaú/Km 01, 14800-903 Araraquara, SP, Brazil; Univ Coimbra, CIEPQPF, Department of Chemical Engineering, Rua Sílvio Lima, Pólo II - Pinhal de Marrocos, 3030-790 Coimbra, Portugal.
| |
Collapse
|
170
|
Food protein network formation and gelation induced by conductive or microwave heating: A focus on hen egg white. INNOV FOOD SCI EMERG 2020. [DOI: 10.1016/j.ifset.2020.102484] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
171
|
Sankar S, Ponnuraj K. Less explored plant lipases: Modeling and molecular dynamics simulations of plant lipases in different solvents and temperatures to understand structure-function relationship. Int J Biol Macromol 2020; 164:3546-3558. [DOI: 10.1016/j.ijbiomac.2020.08.227] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 08/05/2020] [Accepted: 08/29/2020] [Indexed: 01/14/2023]
|
172
|
Temperature dependent aggregation mechanism and pathway of lysozyme: By all atom and coarse grained molecular dynamics simulation. J Mol Graph Model 2020; 103:107816. [PMID: 33291026 DOI: 10.1016/j.jmgm.2020.107816] [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: 08/15/2020] [Revised: 11/18/2020] [Accepted: 11/18/2020] [Indexed: 11/21/2022]
Abstract
Aggregation of protein causes various diseases including Alzheimer's disease, Parkinson's disease, and type II diabetes. It was found that aggregation of protein depends on many factors like temperature, pH, salt type, salt concentration, ionic strength, protein concentration, co solutes. Here we have tried to capture the aggregation mechanism and pathway of hen egg white lysozyme using molecular dynamics simulations at two different temperatures; 300 K and 340 K. Along with the all atom simulations to get the atomistic details of aggregation mechanism, we have used coarse grained simulation with MARTINI force field to monitor the aggregation for longer duration. Our results suggest that due to the aggregation, changes in the conformation of lysozyme are more at 340 K than at 300 K. The change in the conformation of the lysozyme at 300 K is mainly due to aggregation where at 340 K change in conformation of lysozyme is due to both aggregation and temperature. Also, a more compact aggregated system is formed at 340 K.
Collapse
|
173
|
Particle Detection and Characterization for Biopharmaceutical Applications: Current Principles of Established and Alternative Techniques. Pharmaceutics 2020; 12:pharmaceutics12111112. [PMID: 33228023 PMCID: PMC7699340 DOI: 10.3390/pharmaceutics12111112] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/09/2020] [Accepted: 11/10/2020] [Indexed: 12/30/2022] Open
Abstract
Detection and characterization of particles in the visible and subvisible size range is critical in many fields of industrial research. Commercial particle analysis systems have proliferated over the last decade. Despite that growth, most systems continue to be based on well-established principles, and only a handful of new approaches have emerged. Identifying the right particle-analysis approach remains a challenge in research and development. The choice depends on each individual application, the sample, and the information the operator needs to obtain. In biopharmaceutical applications, particle analysis decisions must take product safety, product quality, and regulatory requirements into account. Biopharmaceutical process samples and formulations are dynamic, polydisperse, and very susceptible to chemical and physical degradation: improperly handled product can degrade, becoming inactive or in specific cases immunogenic. This article reviews current methods for detecting, analyzing, and characterizing particles in the biopharmaceutical context. The first part of our article represents an overview about current particle detection and characterization principles, which are in part the base of the emerging techniques. It is very important to understand the measuring principle, in order to be adequately able to judge the outcome of the used assay. Typical principles used in all application fields, including particle–light interactions, the Coulter principle, suspended microchannel resonators, sedimentation processes, and further separation principles, are summarized to illustrate their potentials and limitations considering the investigated samples. In the second part, we describe potential technical approaches for biopharmaceutical particle analysis as some promising techniques, such as nanoparticle tracking analysis (NTA), micro flow imaging (MFI), tunable resistive pulse sensing (TRPS), flow cytometry, and the space- and time-resolved extinction profile (STEP®) technology.
Collapse
|
174
|
Abdelrahman S, Alghrably M, Lachowicz JI, Emwas AH, Hauser CAE, Jaremko M. "What Doesn't Kill You Makes You Stronger": Future Applications of Amyloid Aggregates in Biomedicine. Molecules 2020; 25:E5245. [PMID: 33187056 PMCID: PMC7696280 DOI: 10.3390/molecules25225245] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/24/2020] [Accepted: 10/27/2020] [Indexed: 02/06/2023] Open
Abstract
Amyloid proteins are linked to the pathogenesis of several diseases including Alzheimer's disease, but at the same time a range of functional amyloids are physiologically important in humans. Although the disease pathogenies have been associated with protein aggregation, the mechanisms and factors that lead to protein aggregation are not completely understood. Paradoxically, unique characteristics of amyloids provide new opportunities for engineering innovative materials with biomedical applications. In this review, we discuss not only outstanding advances in biomedical applications of amyloid peptides, but also the mechanism of amyloid aggregation, factors affecting the process, and core sequences driving the aggregation. We aim with this review to provide a useful manual for those who engineer amyloids for innovative medicine solutions.
Collapse
Affiliation(s)
- Sherin Abdelrahman
- Laboratory for Nanomedicine, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia;
| | - Mawadda Alghrably
- Division of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia;
| | - Joanna Izabela Lachowicz
- Department of Medical Sciences and Public Health, University of Cagliari, Policlinico Universitario, I-09042 Monserrato, Italy
| | - Abdul-Hamid Emwas
- Core Labs, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia;
| | - Charlotte A. E. Hauser
- Laboratory for Nanomedicine, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia;
| | - Mariusz Jaremko
- Division of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia;
| |
Collapse
|
175
|
Yang Y, Ji Z, Wu C, Ding YY, Gu Z. Effect of the heating process on the physicochemical characteristics and nutritional properties of whole cotyledon soymilk and tofu. RSC Adv 2020; 10:40625-40636. [PMID: 35519201 PMCID: PMC9057697 DOI: 10.1039/d0ra07911a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 10/27/2020] [Indexed: 11/21/2022] Open
Abstract
This study focused on the effect of the heating process on the whole cotyledon soymilk and tofu. Whole cotyledon soymilk was made from soybean cotyledon and processed by enzymatic hydrolysis using cellulase and high-pressure homogeneity. In this study, a one-step heating method was selected for the cooking process of whole cotyledon soybean milk, and the whole cotyledon soybean milk was heated to 90 °C and held for 4 min. Results showed that the protein, total saccharides and dietary fiber content of the whole cotyledon soymilk were higher than those of the tradition soymilk due to the existence of bean dregs (okara). Both protein aggregation and protein-polysaccharide interaction were observed during the heating process. We also found a change in soymilk physicochemical characteristics such as particle size distribution, viscosity, surface hydrophobicity and soluble protein during the heating process. The results in this study showed that compared with traditional tofu, the phytic acid and trypsin inhibitor content in whole cotyledon tofu was lower, so its protein had higher digestibility in vitro. In conclusion, whole cotyledon tofu had better health properties and application prospects.
Collapse
Affiliation(s)
- Yuexi Yang
- School of Food Science and Biotechnology, Zhejiang Gongshang University Hangzhou 310018 China +86-571-28008900 +86-571-28877171
| | - Zhoujieyu Ji
- School of Food Science and Biotechnology, Zhejiang Gongshang University Hangzhou 310018 China +86-571-28008900 +86-571-28877171
| | - Cheng Wu
- School of Food Science and Biotechnology, Zhejiang Gongshang University Hangzhou 310018 China +86-571-28008900 +86-571-28877171
| | - Yin-Yi Ding
- School of Food Science and Biotechnology, Zhejiang Gongshang University Hangzhou 310018 China +86-571-28008900 +86-571-28877171
- Food Nutrition Science Centre, Zhejiang Gongshang University Hangzhou 310018 China
| | - Zhenyu Gu
- School of Food Science and Biotechnology, Zhejiang Gongshang University Hangzhou 310018 China +86-571-28008900 +86-571-28877171
| |
Collapse
|
176
|
Fink M, Cannon EM, Hofmann C, Patel N, Pauley C, Troutman M, Rustandi RR, Shank-Retzlaff M, Loughney J, Verch T. Monoclonal Antibody Reagent Stability and Expiry Recommendation Combining Experimental Data with Mathematical Modeling. AAPS JOURNAL 2020; 22:145. [DOI: 10.1208/s12248-020-00521-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 10/06/2020] [Indexed: 12/25/2022]
|
177
|
Onesto V, Di Natale C, Profeta M, Netti PA, Vecchione R. Engineered PLGA-PVP/VA based formulations to produce electro-drawn fast biodegradable microneedles for labile biomolecule delivery. Prog Biomater 2020; 9:203-217. [PMID: 33141337 PMCID: PMC7718351 DOI: 10.1007/s40204-020-00143-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 10/21/2020] [Indexed: 02/07/2023] Open
Abstract
Biodegradable polymer microneedles (MNs) are recognized as non-toxic, safe and stable systems for advanced drug delivery and cutaneous treatments, allowing a direct intradermal delivery and in some cases a controlled release. Most of the microneedles found in the literature are fabricated by micromolding, which is a multistep thus typically costly process. Due to industrial needs, mold-free methods represent a very intriguing approach in microneedle fabrication. Electro-drawing (ED) has been recently proposed as an alternative fast, mild temperature and one-step strategy to the mold-based techniques for the fabrication of poly(lactic-co-glycolic acid) (PLGA) biodegradable MNs. In this work, taking advantage of the flexibility of the ED technology, we engineered microneedle inner microstructure by acting on the water-in-oil (W/O) precursor emulsion formulation to tune drug release profile. Particularly, to promote a faster release of the active pharmaceutical ingredient, we substituted part of PLGA with poly(1-vinylpyrrolidone-co-vinyl acetate) (PVP/VA), as compared to the PLGA alone in the matrix material. Moreover, we introduced lecithin and maltose as emulsion stabilizers. Microneedle inner structural analysis as well as collagenase entrapment efficiency, release and activity of different emulsion formulations were compared to reach an interconnected porosity MN structure, aimed at providing an efficient protein release profile. Furthermore, MN mechanical properties were examined as well as its ability to pierce the stratum corneum on a pig skin model, while the drug diffusion from the MN body was monitored in an in vitro collagen-based dermal model at selected time points.
Collapse
Affiliation(s)
- Valentina Onesto
- Center for Advanced Biomaterials for Health Care, CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, 80125, Naples, Italy.
| | - Concetta Di Natale
- Center for Advanced Biomaterials for Health Care, CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, 80125, Naples, Italy.,Interdisciplinary Research Center of Biomaterials, CRIB, University Federico II, P.leTecchio 80, 80125, Naples, Italy
| | - Martina Profeta
- Center for Advanced Biomaterials for Health Care, CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, 80125, Naples, Italy
| | - Paolo Antonio Netti
- Center for Advanced Biomaterials for Health Care, CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, 80125, Naples, Italy.,Interdisciplinary Research Center of Biomaterials, CRIB, University Federico II, P.leTecchio 80, 80125, Naples, Italy
| | - Raffaele Vecchione
- Center for Advanced Biomaterials for Health Care, CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, 80125, Naples, Italy. .,Interdisciplinary Research Center of Biomaterials, CRIB, University Federico II, P.leTecchio 80, 80125, Naples, Italy.
| |
Collapse
|
178
|
N-Acetylated-L-arginine (NALA) is an enhanced protein aggregation suppressor under interfacial stresses and elevated temperature for protein liquid formulations. Int J Biol Macromol 2020; 166:654-664. [PMID: 33137385 DOI: 10.1016/j.ijbiomac.2020.10.223] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/19/2020] [Accepted: 10/28/2020] [Indexed: 12/15/2022]
Abstract
Even though arginine hydrochloride has been recognized as a protein aggregation suppressor in the biopharmaceutical industry, its use has been questioned due to decreasing transition unfolding temperatures (Tm). Four compounds were designed to enhance the role of arginine by changing the length of the carbon chain with removal or N-acetylation of α-amino group. Biophysical properties were observed by differential scanning calorimetry (DSC), dynamic light scattering (DLS), size-exclusion chromatography (SEC), and flow imaging (FI). N-Acetyl-L-arginine (NALA) performed the best at minimizing decrease in Tm with arginine at different pH. NALA also demonstrated relatively higher colloidal stability than arginine hydrochloride, especially in the acidic pH, thereby reducing agitation stress of IgG. Moreover, NALA exhibited a cooperative effect with commercially used glycine buffer for IVIG to maintain the monomer contents with almost no change and suppressed larger particle formation after agitation with heat. The study concludes that the decreasing Tm of proteins by arginine hydrochloride is due to amide group in the α-carbon chain. Moreover, chemical modification on the group compared to removing it will be a breakthrough of arginine's limitations and optimize storage stability of protein therapeutics.
Collapse
|
179
|
Long-Term Stability of Anti-Vascular Endothelial Growth Factor (a-VEGF) Biologics Under Physiologically Relevant Conditions and Its Impact on the Development of Long-Acting Delivery Systems. J Pharm Sci 2020; 110:860-870. [PMID: 33031788 DOI: 10.1016/j.xphs.2020.09.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 09/21/2020] [Accepted: 09/24/2020] [Indexed: 11/21/2022]
Abstract
The port delivery system with ranibizumab (PDS) is an investigational long-acting drug delivery system for the continuous release of ranibizumab, an anti-VEGF biologic, in the vitreous humor. The efficacy of the PDS implant relies on the maintenance of long-term drug stability under physiological conditions. Herein, the long-term stability of three anti-VEGF biologics - ranibizumab, bevacizumab and aflibercept - was investigated in phosphate buffered saline (PBS) at 37 °C for several months. Comparison of stability profiles shows that bevacizumab and aflibercept are increasingly prone to aggregation whereas ranibizumab undergoes minimal aggregation. Ranibizumab also shows the smallest loss in antigen binding capacity after long-term incubation in PBS. Even though the aggregated forms of bevacizumab and aflibercept bind to VEGF, the consequences of aggregation on immunogenicity, implant function and efficacy are unknown. These results highlight the importance of maintaining long-term drug stability under physiologically relevant conditions which is necessary for achieving efficacy with an in vivo continuous drug delivery device such as the PDS implant.
Collapse
|
180
|
Associative interactions between pullulan and negatively charged bovine serum albumin in physiological saline solutions. Carbohydr Polym 2020; 246:116630. [DOI: 10.1016/j.carbpol.2020.116630] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/08/2020] [Accepted: 06/10/2020] [Indexed: 01/18/2023]
|
181
|
Wei L, Shirakashi R. Effect of Relaxation Times in a Preservative Solution on Protein Deterioration Rate. J Phys Chem B 2020; 124:8741-8749. [PMID: 32902981 DOI: 10.1021/acs.jpcb.0c05245] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In this study, the relationship between the deterioration of the enzymatic activity of the protein in a preservative solution and the molecular mobility of the preservative solution was experimentally investigated by dielectric spectroscopy and a protein deterioration test. Dielectric spectroscopy was used to observe the molecular mobilities in the preservative solutions including various ratios of two protective agents, trehalose and ε-poly-l-lysine, at 40 °C. We also examined the enzymatic activity of l-lactate dehydrogenase (LDH) at 40 °C for 40 days to obtain the deterioration rate of LDH in the same preservative solutions. Our experimental results reveal that (1) three relaxation times of water molecular motion are detected by dielectric spectroscopy that we categorize into bulky water (relaxation time of 10 ps), weakly hydration water (relaxation time of tens to hundreds of picoseconds), and strongly hydration water (relaxation time of hundreds of picoseconds to tens of microseconds) and (2) the deterioration rate of LDH has a power-law relationship with the relaxation times of bulky and hydration water with specific power indices. The results also support the protein stabilization theory of high viscosity and the practical advantage of predicting the shelf life of proteins in the preservative solution by the relaxation time of water measured by dielectric spectroscopy.
Collapse
Affiliation(s)
- Lin Wei
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
| | - Ryo Shirakashi
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
| |
Collapse
|
182
|
Preston KB, Monticello CR, Wong TAS, To A, Donini O, Lehrer AT, Randolph TW. Preservation of Quaternary Structure in Thermostable, Lyophilized Filovirus Glycoprotein Vaccines: A Search for Stability-Indicating Assays. J Pharm Sci 2020; 109:3716-3727. [PMID: 32931778 DOI: 10.1016/j.xphs.2020.09.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/13/2020] [Accepted: 09/08/2020] [Indexed: 01/08/2023]
Abstract
The filoviruses Zaire ebolavirus (EBOV), Marburg marburgvirus (MARV), and Sudan ebolavirus (SUDV) are some of the most lethal infectious agents known. To date, the Zaire ebolavirus vaccine (ERVEBO®) is the only United States Food and Drug Administration (FDA) approved vaccine available for any species of filovirus. However, the ERVEBO® vaccine requires cold-chain storage not to exceed -60 °C. Such cold-chain requirements are difficult to maintain in low- and middle-income countries where filovirus outbreaks originate. To improve the thermostability of filovirus vaccines in order to potentially relax or eliminate these cold-chain requirements, monovalent subunit vaccines consisting of glycoproteins from EBOV, MARV, and SUDV were stabilized within amorphous disaccharide glasses through lyophilization. Lyophilized formulations and liquid controls were incubated for up to 12 weeks at 50 °C to accelerate degradation. To identify a stability-indicating assay appropriate for monitoring protein degradation and immunogenicity loss during these accelerated stability studies, filovirus glycoprotein secondary, tertiary, and quaternary structures and vaccine immunogenicity were measured. Size-exclusion chromatography was the most sensitive indicator of glycoprotein stability in the various formulations for all three filovirus immunogens. Degradation of the test vaccines during accelerated stability studies was reflected in changes in quaternary structure, which were discernible with size-exclusion chromatography. Filovirus glycoproteins in glassy lyophilized formulations retained secondary, tertiary, and quaternary protein structure over the incubation period, whereas the proteins within liquid controls both aggregated to form higher molecular weight species and dissociated from their native quaternary structure to form a variety of structurally-perturbed lower molecular weight species.
Collapse
Affiliation(s)
- Kendall B Preston
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, CO 80303, USA
| | - Connor R Monticello
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, CO 80303, USA
| | - Teri Ann S Wong
- Department of Tropical Medicine, Medical Microbiology & Pharmacology, John A. Burns School of Medicine, University of Hawai'i at Manoa, Honolulu, HI 96813, USA
| | - Albert To
- Department of Tropical Medicine, Medical Microbiology & Pharmacology, John A. Burns School of Medicine, University of Hawai'i at Manoa, Honolulu, HI 96813, USA
| | | | - Axel T Lehrer
- Department of Tropical Medicine, Medical Microbiology & Pharmacology, John A. Burns School of Medicine, University of Hawai'i at Manoa, Honolulu, HI 96813, USA
| | - Theodore W Randolph
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, CO 80303, USA.
| |
Collapse
|
183
|
Holloway L, Roche A, Marzouk S, Uddin S, Ke P, Ekizoglou S, Curtis R. Determination of Protein-Protein Interactions at High Co-Solvent Concentrations Using Static and Dynamic Light Scattering. J Pharm Sci 2020; 109:2699-2709. [DOI: 10.1016/j.xphs.2020.05.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 04/07/2020] [Accepted: 05/18/2020] [Indexed: 01/21/2023]
|
184
|
Barreto MSC, Elzinga EJ, Alleoni LRF. The molecular insights into protein adsorption on hematite surface disclosed by in-situ ATR-FTIR/2D-COS study. Sci Rep 2020; 10:13441. [PMID: 32778712 PMCID: PMC7417568 DOI: 10.1038/s41598-020-70201-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 07/07/2020] [Indexed: 02/06/2023] Open
Abstract
Proteins are of ubiquitous interest in the Life Sciences but are of interest in the Geosciences as well because of the significant role these compounds play in the biogeochemical cycling of trace and nutrient elements. Structural changes resulting from the adsorption of proteins onto mineral surfaces may alter protein biological function and other environmental interactions. Iron oxides are major sinks of a range of environmental elements including organic compounds. In this study, the adsorption of the broadly studied model protein BSA onto the hematite mineral surface was characterized as a function of pH, ionic strength, and BSA concentration using in-situ Attenuated Total Reflection Fourier Transform Infrared (ATR-FTIR) spectroscopy. BSA lost the α-helix and gain β-sheets in the secondary structure during adsorption on hematite. BSA adsorption was maximum at pH 5, a value close to the BSA isoelectric point (~ pH 5), and lower at pH 4 and pH 7. Increasing ionic strength decreased to total BSA adsorption. Two-dimensional correlation spectroscopy analysis of the ATR-FTIR spectra revealed that higher initial BSA concentration and the consequent higher BSA surface loading enhanced BSA adsorption by protein–protein interaction, which less ordered structures changes into more compact forms decrease, hence compacting the structural arrangement and could promoting multilayers/aggregation formation on the mineral surface. The activity of enzymes following adsorption on mineral surfaces requires further study.
Collapse
Affiliation(s)
- Matheus Sampaio C Barreto
- AgroBiosciences Division, Mohammed VI Polytechnic University (UM6P), Lot 660, Hay Moulay Rachid, 43150, Benguerir, Morocco. .,Department of Soil Science, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Piracicaba, SP, Brazil.
| | - Evert J Elzinga
- Department of Earth & Environmental Sciences, Rutgers University, Newark, NJ, USA
| | - Luís Reynaldo F Alleoni
- Department of Soil Science, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Piracicaba, SP, Brazil
| |
Collapse
|
185
|
Majewski J, Jones EM, Vander Zanden CM, Biernat J, Mandelkow E, Chi EY. Lipid membrane templated misfolding and self-assembly of intrinsically disordered tau protein. Sci Rep 2020; 10:13324. [PMID: 32770092 PMCID: PMC7414892 DOI: 10.1038/s41598-020-70208-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 07/21/2020] [Indexed: 01/21/2023] Open
Abstract
The aggregation of the intrinsically disordered tau protein into highly ordered β-sheet-rich fibrils is implicated in the pathogenesis of a range of neurodegenerative disorders. The mechanism of tau fibrillogenesis remains unresolved, particularly early events that trigger the misfolding and assembly of the otherwise soluble and stable tau. We investigated the role the lipid membrane plays in modulating the aggregation of three tau variants, the largest isoform hTau40, the truncated construct K18, and a hyperphosphorylation-mimicking mutant hTau40/3Epi. Despite being charged and soluble, the tau proteins were also highly surface active and favorably interacted with anionic lipid monolayers at the air/water interface. Membrane binding of tau also led to the formation of a macroscopic, gelatinous layer at the air/water interface, possibly related to tau phase separation. At the molecular level, tau assembled into oligomers composed of ~ 40 proteins misfolded in a β-sheet conformation at the membrane surface, as detected by in situ synchrotron grazing-incidence X-ray diffraction. Concomitantly, membrane morphology and lipid packing became disrupted. Our findings support a general tau aggregation mechanism wherein tau’s inherent surface activity and favorable interactions with anionic lipids drive tau-membrane association, inducing misfolding and self-assembly of the disordered tau into β-sheet-rich oligomers that subsequently seed fibrillation and deposition into diseased tissues.
Collapse
Affiliation(s)
- Jaroslaw Majewski
- Division of Molecular and Cellular Biology, National Science Foundation, Alexandria, VA, 22314, USA.,Department of Chemical and Biological Engineering and Center for Biomedical Engineering, University of New Mexico, Albuquerque, NM, 87131, USA.,Theoretical Biology and Biophysics Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Emmalee M Jones
- Nanoscience and Microsystems Engineering Graduate Program, University of New Mexico, Albuquerque, NM, 87131, USA.,Department of Chemical and Biological Engineering and Center for Biomedical Engineering, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Crystal M Vander Zanden
- Department of Chemical and Biological Engineering and Center for Biomedical Engineering, University of New Mexico, Albuquerque, NM, 87131, USA.,Department of Chemistry and Biochemistry, University of Colorado at Colorado Springs, Colorado Springs, CO, 80918, USA
| | - Jacek Biernat
- Center for Neurodegenerative Diseases (DZNE), 53127, Bonn, Germany.,CAESAR Research Center, 53175, Bonn, Germany
| | - Eckhard Mandelkow
- Center for Neurodegenerative Diseases (DZNE), 53127, Bonn, Germany.,CAESAR Research Center, 53175, Bonn, Germany
| | - Eva Y Chi
- Department of Chemical and Biological Engineering and Center for Biomedical Engineering, University of New Mexico, Albuquerque, NM, 87131, USA.
| |
Collapse
|
186
|
Kingsbury JS, Saini A, Auclair SM, Fu L, Lantz MM, Halloran KT, Calero-Rubio C, Schwenger W, Airiau CY, Zhang J, Gokarn YR. A single molecular descriptor to predict solution behavior of therapeutic antibodies. SCIENCE ADVANCES 2020; 6:eabb0372. [PMID: 32923611 PMCID: PMC7457339 DOI: 10.1126/sciadv.abb0372] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 06/17/2020] [Indexed: 05/02/2023]
Abstract
Despite the therapeutic success of monoclonal antibodies (mAbs), early identification of developable mAb drug candidates with optimal manufacturability, stability, and delivery attributes remains elusive. Poor solution behavior, which manifests as high solution viscosity or opalescence, profoundly affects the developability of mAb drugs. Using a diverse dataset of 59 mAbs, including 43 approved products, and an array of molecular descriptors spanning colloidal, conformational, charge-based, hydrodynamic, and hydrophobic properties, we show that poor solution behavior is prevalent (>30%) in mAbs and is singularly predicted (>90%) by the diffusion interaction parameter (k D), a dilute-solution measure of colloidal self-interaction. No other descriptor, individually or in combination, was found to be as effective as k D. We also show that well-behaved mAbs, a substantial subset of which bear high positive charge and pI, present no disadvantages with respect to pharmacokinetics in humans. Here, we provide a systematic framework with quantitative thresholds for selecting well-behaved therapeutic mAbs during drug discovery.
Collapse
|
187
|
Stein D, Thom V, Hubbuch J. High throughput screening setup of a scale-down device for membrane chromatography-aggregate removal of monoclonal antibodies. Biotechnol Prog 2020; 36:e3055. [PMID: 32710474 DOI: 10.1002/btpr.3055] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 07/18/2020] [Accepted: 07/23/2020] [Indexed: 11/07/2022]
Abstract
In biopharmaceutical process development, resin-based high throughput screening (HTS) is well known for overcoming experimental limitations by permitting automated parallel processing at miniaturized scale, which results in fast data generation and reduced feed consumption. For membrane adsorber (MA), HTS solutions have so far only been available to a partial extent. Three case studies were performed with the aim of aligning HTS applications for MAs with those established for column chromatography: Process parameter range determination, mechanistic modeling (MM), and scalability. In order to exploit the MA typically features, such as high mass transfer and easy scalability, for scalable high throughput process development, a scale-down device (SDD) for MA was developed. Its applicability is confirmed for a monoclonal antibody aggregate removal step. The first case study explores the experimental application of the SDD developed. It uses bind and elute mode and variations of pH and salt concentration to obtain process operation windows for ion-exchange MAs Sartobind® S and Q. In the second case study, we successfully developed a mechanistic model based on parameters obtained from the SDD-HTS setup. The results proved to validate the use of the SDD developed for parameter estimation and thus model-based process development. The third case study shows the transferability and scalability of data from the SDD-HTS setup using both a direct scale factor and MM. Both approaches show good applicability with a deviation below 20% in the prediction of 10% dynamic breakthrough capacity and reliable scale-up from 0.42 to 800 ml.
Collapse
Affiliation(s)
- Dominik Stein
- Sartorius Stedim Biotech GmbH, Goettingen, Germany.,Department of Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Volkmar Thom
- Sartorius Stedim Biotech GmbH, Goettingen, Germany
| | - Jürgen Hubbuch
- Department of Engineering in Life Sciences, Section IV: Biomolecular Separation Engineering, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| |
Collapse
|
188
|
Acevedo Rivera YM, Meléndez M, Pastrana-Ríos B. Real-time monitoring of trehalose crystallization using quantum cascade laser microscopy and 2D-COS. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
189
|
Schuster J, Mahler HC, Koulov A, Joerg S, Racher A, Huwyler J, Detampel P, Mathaes R. Tracking the physical stability of fluorescent-labeled mAbs under physiologic in vitro conditions in human serum and PBS. Eur J Pharm Biopharm 2020; 152:193-201. [DOI: 10.1016/j.ejpb.2020.04.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 04/18/2020] [Accepted: 04/22/2020] [Indexed: 02/08/2023]
|
190
|
Santra S, Jana M. Insights into the Sensitivity of Arginine Concentration to Preserve the Folded Form of Insulin Monomer under Thermal Stress. J Chem Inf Model 2020; 60:3105-3119. [PMID: 32479724 DOI: 10.1021/acs.jcim.0c00006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Arginine, although popularly known as aggregation suppressor additive, has been found to quench proteins' structure and function by destabilizing their conformations. Driven by such controversial evidence, in this work we performed a series of atomistic molecular dynamics simulations of insulin monomer, a biologically active hormone protein, in arginine solution of varying concentrations (0.5, 1, and 2 M) at ambient and elevated temperature (400 K) to explore the arginine concentration driven structure-based stability of the protein. Our study reveals that the flexibility of the protein's structure is dependent on the arginine concentration, and among all the used solutions, 2 M arginine, a "neutral crowder" that mimics the cellular environment, can preserve the native folded form of the protein at ambient temperature in an excellent manner. Further, while the protein unfolds at 400 K in pure water, this solution worked satisfactorily to preserve the protein's folded conformation more firmly than the other solutions. The replica-exchange MD of insulin in 2 M arginine solution further supports the fact. In this aspect an important issue in molecular pharmacology is to identify and recognize the physical origin of the stability of a protein, i.e, in this case, how arginine directs the conformational flexibility of the protein and preserves its native folded form. We identified that the exclusion of arginine from the protein surface increases the local structuration of water around the protein, thereby preserving its "biological water" layer, and makes the protein more hydrated at 2 M concentration as compared to the other arginine solutions. Additionally, our microscopic investigation on the interactions of the protein-solvation layer revealed that the structural heterogeneity of the protein surface, arising from the differential physicochemical nature of the amino acid residues, controls the favorable formation of sluggish water-arginine mixed solvation layer at higher arginine concentration that helps the protein to maintain its structural rigidity. Importantly, apart from the protein-solvent hydrogen-bonding interactions, the anion-pi interactions, established between the carboxyl group of arginine and the aromatic amino acid residues of insulin, were recognized to facilitate the protein to maintain its native folded form at the experimental temperatures.
Collapse
Affiliation(s)
- Santanu Santra
- Molecular Simulation Laboratory, Department of Chemistry, National Institute of Technology, Rourkela-769008, India
| | - Madhurima Jana
- Molecular Simulation Laboratory, Department of Chemistry, National Institute of Technology, Rourkela-769008, India
| |
Collapse
|
191
|
Pham NB, Meng WS. Protein aggregation and immunogenicity of biotherapeutics. Int J Pharm 2020; 585:119523. [PMID: 32531452 DOI: 10.1016/j.ijpharm.2020.119523] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/01/2020] [Accepted: 06/06/2020] [Indexed: 12/19/2022]
Abstract
Recombinant proteins are the mainstay of biopharmaceuticals. A key challenge in the manufacturing and formulation of protein biologic products is the tendency for the active pharmaceutical ingredients to aggregate, resulting in irreversible drug loss, and an increase in immunogenicity risk. While the molecular mechanisms of protein aggregation have been discussed extensively in the literature, knowledge gaps remain in connecting the phenomenon in the context of immunogenicity of biotherapeutics. In this review, we discussed factors that drive aggregation of pharmaceutical recombinant proteins, and highlighted methods of prediction and mitigation that can be deployed through the development stages, from formulation to bioproduction. The purpose is to stimulate new dialogs that would bridge the interface between physical characterizations of protein aggregates in biotherapeutics and the functional attributes of the immune system.
Collapse
Affiliation(s)
- Ngoc B Pham
- Graduate School of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, PA 15282, United States
| | - Wilson S Meng
- Graduate School of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, PA 15282, United States; McGowan Institute for Regenerative Medicine, University of Pittsburgh, PA 15219, United States.
| |
Collapse
|
192
|
Zeng XH, Du H, Zhao HM, Xiang L, Feng NX, Li H, Li YW, Cai QY, Mo CH, Wong MH, He ZL. Insights into the binding interaction of substrate with catechol 2,3-dioxygenase from biophysics point of view. JOURNAL OF HAZARDOUS MATERIALS 2020; 391:122211. [PMID: 32036315 DOI: 10.1016/j.jhazmat.2020.122211] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/21/2020] [Accepted: 01/30/2020] [Indexed: 06/10/2023]
Abstract
This study aims to clarify the interaction mechanism of substrate with catechol 2,3-dioxygenase (C23O) through multi-technique combination. A novel C23O (named C23O-2G) was cloned, heterogeneously expressed, and identified as a new member in subfamily I.2 of extradiol dioxygenases. Based on the simulations of molecular docking and dynamics, the exact binding sites of catechol on C23O-2G were identified, and the catalytic mechanism mediated by key residues was proposed. The roles of the predicted residues during catalysis were confirmed by site-directed mutagenesis, and the mutation of Thr254 could significantly increase catalytic efficiency and substrate specificity of C23O-2G. The binding and thermodynamic parameters obtained from fluorescence spectra suggested that catechol could effectively quench the intrinsic fluorescence of C23O-2G via static and dynamic quenching mechanisms and spontaneously formed C23O-2G/catechol complex by the binding forces of hydrogen bond and van der Waals force. The results of UV-vis spectra, synchronous fluorescence, and CD spectra revealed obvious changes in the microenvironment and conformation of C23O-2G, especially for the secondary structure. The atomic force microscope images further demonstrated the changes from an appearance point of view. This study could improve our mechanistic understanding of representative dioxygenases involved in aromatic compound degradation.
Collapse
Affiliation(s)
- Xian-Hong Zeng
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Huan Du
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Hai-Ming Zhao
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China; Indian River Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Fort Pierce, FL, 34945, USA.
| | - Lei Xiang
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Nai-Xian Feng
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Hui Li
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Yan-Wen Li
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Quan-Ying Cai
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Ce-Hui Mo
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China.
| | - Ming-Hung Wong
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Zhen-Li He
- Indian River Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Fort Pierce, FL, 34945, USA
| |
Collapse
|
193
|
Presas E, Sultan E, Gervasi V, Crean AM, Werner U, Bazile D, O'Driscoll CM. Long-term stability of insulin glulisine loaded nanoparticles formulated using an amphiphilic cyclodextrin and designed for intestinal delivery. Drug Dev Ind Pharm 2020; 46:1073-1079. [PMID: 32478645 DOI: 10.1080/03639045.2020.1775631] [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] [Indexed: 10/24/2022]
Abstract
Long-term stability is one of the main challenges for translation of therapeutic proteins into commercially viable biopharmaceutical products. During processing and storage, proteins are susceptible to denaturation. The aim of this work was to evaluate the stability of amphiphilic cyclodextrin-based nanoparticles (NPs) containing insulin glulisine. The stability of the NP dispersion was systematically evaluated following storage at three different temperatures (4 °C, room temperature (RT) and 40 °C). While the colloidal parameters of the NPs in terms of size and zeta potential were maintained (109 ± 9 nm, polydispersity index 0.272, negative zeta potential -25 ± 3 mV), insulin degraded over 60 days during storage. To enhance the shelf life of the product and to circumvent the need for cold-chain maintenance, a lyophilized formulation containing insulin glulisine NPs (1.75 mg/mL of NPs) and 25 mg/mL trehalose was produced. The freeze-dried powder extended the stability of the product for up to 30 days at ambient temperature and 90 days at 4 °C (with 95% and >80% insulin recovery, respectively). Following intra-intestinal administration of the freeze-dried formulation, while no lowering of blood glucose was seen, insulin glulisine was detected in both portal and systemic blood indicating that potential exists for further development of the formulation to simultaneously achieve prolonged stability and therapeutic efficacy.
Collapse
Affiliation(s)
- Elena Presas
- Pharmacodelivery Group, School of Pharmacy, University College Cork, Cork, Ireland
| | - Eric Sultan
- Sanofi Research and Development, Paris, France.,Sanofi Research and Development, Frankfurt, Germany
| | - Valeria Gervasi
- Pharmacodelivery Group, School of Pharmacy, University College Cork, Cork, Ireland
| | - Abina M Crean
- Pharmacodelivery Group, School of Pharmacy, University College Cork, Cork, Ireland
| | - Ulrich Werner
- Sanofi Research and Development, Paris, France.,Sanofi Research and Development, Frankfurt, Germany
| | - Didier Bazile
- Sanofi Research and Development, Paris, France.,Sanofi Research and Development, Frankfurt, Germany
| | | |
Collapse
|
194
|
Zhao H, Zhou X, Xu E, Guo M, Liu D. Extrinsic factors influencing nano-/micro-particle formation in pure soy glycinin solution via heating. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105649] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
195
|
Pantuso E, Mastropietro TF, Briuglia ML, Gerard CJJ, Curcio E, Ter Horst JH, Nicoletta FP, Di Profio G. On the Aggregation and Nucleation Mechanism of the Monoclonal Antibody Anti-CD20 Near Liquid-Liquid Phase Separation (LLPS). Sci Rep 2020; 10:8902. [PMID: 32483267 PMCID: PMC7264149 DOI: 10.1038/s41598-020-65776-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 04/30/2020] [Indexed: 12/02/2022] Open
Abstract
The crystallization of Anti-CD20, a full-length monoclonal antibody, has been studied in the PEG400/Na2SO4/Water system near Liquid-Liquid Phase Separation (LLPS) conditions by both sitting-drop vapour diffusion and batch methods. In order to understand the Anti-CD20 crystallization propensity in the solvent system of different compositions, we investigated some measurable parameters, normally used to assess protein conformational and colloidal stability in solution, with the aim to understand the aggregation mechanism of this complex biomacromolecule. We propose that under crystallization conditions a minor population of specifically aggregated protein molecules are present. While this minor species hardly contributes to the measured average solution behaviour, it induces and promotes crystal formation. The existence of this minor species is the result of the LLPS occurring concomitantly under crystallization conditions.
Collapse
Affiliation(s)
- Elvira Pantuso
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Via P. Bucci Edificio Polifunzionale, 87036, Rende, CS, Italy
| | - Teresa F Mastropietro
- National Research Council of Italy (CNR) - Institute on Membrane Technology (ITM), Via P. Bucci Cubo 17/C, 87036, Rende, CS, Italy
| | - Maria L Briuglia
- EPSRC Centre for Innovative Manufacturing in Continuous Manufacturing and Crystallisation (CMAC), Strathclyde Institute of Pharmacy and Biomedical Sciences, Technology and Innovation Centre, University of Strathclyde, 99 George Street, Glasgow, G1 1RD, UK
| | - Charline J J Gerard
- EPSRC Centre for Innovative Manufacturing in Continuous Manufacturing and Crystallisation (CMAC), Strathclyde Institute of Pharmacy and Biomedical Sciences, Technology and Innovation Centre, University of Strathclyde, 99 George Street, Glasgow, G1 1RD, UK
| | - Efrem Curcio
- Department of Environmental Engineering (DIAm), University of Calabria, Via P. Bucci Cubo 45/A, 87036, Rende, CS, Italy
- Seligenda Membrane Technologies S.r.l., Via P. Bucci Cubo 45/A, 87036, Rende, CS, Italy
| | - Joop H Ter Horst
- EPSRC Centre for Innovative Manufacturing in Continuous Manufacturing and Crystallisation (CMAC), Strathclyde Institute of Pharmacy and Biomedical Sciences, Technology and Innovation Centre, University of Strathclyde, 99 George Street, Glasgow, G1 1RD, UK
| | - Fiore P Nicoletta
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Via P. Bucci Edificio Polifunzionale, 87036, Rende, CS, Italy.
| | - Gianluca Di Profio
- National Research Council of Italy (CNR) - Institute on Membrane Technology (ITM), Via P. Bucci Cubo 17/C, 87036, Rende, CS, Italy.
- Seligenda Membrane Technologies S.r.l., Via P. Bucci Cubo 45/A, 87036, Rende, CS, Italy.
| |
Collapse
|
196
|
Hölzel R, Pethig R. Protein Dielectrophoresis: I. Status of Experiments and an Empirical Theory. MICROMACHINES 2020; 11:E533. [PMID: 32456059 PMCID: PMC7281080 DOI: 10.3390/mi11050533] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 05/20/2020] [Accepted: 05/20/2020] [Indexed: 12/04/2022]
Abstract
The dielectrophoresis (DEP) data reported in the literature since 1994 for 22 different globular proteins is examined in detail. Apart from three cases, all of the reported protein DEP experiments employed a gradient field factor ∇Em2 that is much smaller (in some instances by many orders of magnitude) than the ~4 1021 V2/m3 required, according to current DEP theory, to overcome the dispersive forces associated with Brownian motion. This failing results from the macroscopic Clausius-Mossotti (CM) factor being restricted to the range 1.0 > CM > -0.5. Current DEP theory precludes the protein's permanent dipole moment (rather than the induced moment) from contributing to the DEP force. Based on the magnitude of the β-dispersion exhibited by globular proteins in the frequency range 1 kHz-50 MHz, an empirically derived molecular version of CM is obtained. This factor varies greatly in magnitude from protein to protein (e.g., ~37,000 for carboxypeptidase; ~190 for phospholipase) and when incorporated into the basic expression for the DEP force brings most of the reported protein DEP above the minimum required to overcome dispersive Brownian thermal effects. We believe this empirically-derived finding validates the theories currently being advanced by Matyushov and co-workers.
Collapse
Affiliation(s)
- Ralph Hölzel
- Fraunhofer Institute for Cell Therapy and Immunology, Branch Bioanalytics and Bioprocesses (IZI-BB), Am Mühlenberg 13, 14476 Potsdam-Golm, Germany;
| | - Ronald Pethig
- School of Engineering, Institute for Integrated Micro and Nanosystems, University of Edinburgh, The King’s Buildings, Edinburgh EH9 3JF, UK
| |
Collapse
|
197
|
Tomlinson A, Zarraga IE, Demeule B. Characterization of Polysorbate Ester Fractions and Implications in Protein Drug Product Stability. Mol Pharm 2020; 17:2345-2353. [DOI: 10.1021/acs.molpharmaceut.0c00093] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Anthony Tomlinson
- Pharmaceutical Development, Genentech, Inc., San Francisco, California 94080-4990, United States
| | - Isidro E. Zarraga
- Pharmaceutical Development, Genentech, Inc., San Francisco, California 94080-4990, United States
| | - Barthélemy Demeule
- Pharmaceutical Development, Genentech, Inc., San Francisco, California 94080-4990, United States
| |
Collapse
|
198
|
Graf T, Abstiens K, Wedekind F, Elger C, Haindl M, Wurth C, Leiss M. Controlled polysorbate 20 hydrolysis - A new approach to assess the impact of polysorbate 20 degradation on biopharmaceutical product quality in shortened time. Eur J Pharm Biopharm 2020; 152:318-326. [PMID: 32445968 DOI: 10.1016/j.ejpb.2020.05.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 05/15/2020] [Accepted: 05/17/2020] [Indexed: 11/17/2022]
Abstract
Hydrolysis of polysorbate in biopharmaceutical liquid formulations upon long-term storage represents a risk factor, since reduction of the intact surfactant concentration may compromise protein stability. Moreover, accumulation of polysorbate degradation products is associated with the formation of particulates potentially affecting drug product stability and quality. These effects are conventionally assessed by real-time end-of-shelf life studies constituting an integral yet lengthy process of formulation development. To accelerate this procedure, we describe here a powerful tool to conduct shake stress studies based on the controlled hydrolysis of polysorbate 20 by beads-immobilized lipases. For this purpose, the production of stable, partially degraded material characterized by a representative presence of non-emulsifying degradants such as ethoxylated sorbitan and free fatty acids was monitored by state-of-the-art chromatographic methods ensuring realistic pharmaceutical conditions. Freeze-thaw, shaking and shipping stress studies of a mAb formulation did not only demonstrate that this approach is useful to determine the critical degradation level impairing drug product quality, but furthermore revealed significant differences in protective effects depending on the hydrolysis pattern. As these results emphasize, the outlined strategy may support formulation scientists to unveil the interrelationship between polysorbate hydrolysis products and stabilization of the active pharmaceutical ingredient in a holistic and time-saving manner.
Collapse
Affiliation(s)
- Tobias Graf
- Pharma Technical Development Analytics, Roche Diagnostics GmbH, Nonnenwald 2, Penzberg 82377, Germany
| | - Kathrin Abstiens
- Pharma Technical Development Biologics, F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel 4054, Switzerland
| | - Frank Wedekind
- Instrumental Analytics, Early Development & Reagent Design, Centralised and Point of Care Solutions, Roche Diagnostics GmbH, Nonnenwald 2, Penzberg 82377, Germany
| | - Carsten Elger
- Pharma Technical Development Analytics, Roche Diagnostics GmbH, Nonnenwald 2, Penzberg 82377, Germany
| | - Markus Haindl
- Pharma Technical Development Analytics, Roche Diagnostics GmbH, Nonnenwald 2, Penzberg 82377, Germany
| | - Christine Wurth
- Pharma Technical Development Biologics, F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel 4054, Switzerland
| | - Michael Leiss
- Pharma Technical Development Analytics, Roche Diagnostics GmbH, Nonnenwald 2, Penzberg 82377, Germany.
| |
Collapse
|
199
|
Lan H, Liu H, Ye Y, Yin Z. The Role of Surface Properties on Protein Aggregation Behavior in Aqueous Solution of Different pH Values. AAPS PharmSciTech 2020; 21:122. [PMID: 32337617 DOI: 10.1208/s12249-020-01663-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 03/13/2020] [Indexed: 02/04/2023] Open
Abstract
This study aimed to investigate the effect of pH-mediated surface properties of bovine serum albumin (BSA) on protein aggregation and the changes of protein structure and colloidal stability at different solution pH levels. The hydrophobicity of BSA surface was characterized by endogenous fluorescence spectroscopy, fluorescence quenching of acrylamide, and fluorescence probe. The results showed that the hydrophobicity of BSA surface was similar at pH 5, 6, 7.4, followed by pH 4, 8, 9, 10, and finally by pH 3 and 11 with strong acidity and alkalinity. The positive charge on the BSA surface was increased gradually with the decrease of solution pH, while the negative charge on protein surface was increased gradually with the increase of solution pH. The degree of protein aggregation was examined by turbidimetry, flow cytometry, and SDS-PAGE. The results showed that the oscillating aggregation of BSA did not change with the solution pH, but was partially dependent on the relative contribution of electrostatic and hydrophobic interactions between the protein molecules. In addition, the secondary structure, conformational stability, unfolding degree, and colloidal stability of proteins were investigated by circular dichroism, fluorescence spectroscopy, protein pulse hydrolysis, and dynamic light scattering, respectively. The results suggested that the solution pH could change the structure and stability of the protein at different levels. Solution pH has distinct effects on the structural stability of protein at different levels. The change of protein surface properties mediated by solution pH is related to protein aggregation.
Collapse
|
200
|
Binding of excipients is a poor predictor for aggregation kinetics of biopharmaceutical proteins. Eur J Pharm Biopharm 2020; 151:127-136. [PMID: 32283214 DOI: 10.1016/j.ejpb.2020.04.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 04/03/2020] [Accepted: 04/04/2020] [Indexed: 12/11/2022]
Abstract
One of the major challenges in formulation development of biopharmaceuticals is improving long-term storage stability, which is often achieved by addition of excipients to the final formulation. Finding the optimal excipient for a given protein is usually done using a trial-and-error approach, due to the lack of general understanding of how excipients work for a particular protein. Previously, preferential interactions (binding or exclusion) of excipients with proteins were postulated as a mechanism explaining diversity in the stabilisation effects. Weak preferential binding is however difficult to quantify experimentally, and the question remains whether the formulation process should seek excipients which preferentially bind with proteins, or not. Here, we apply solution NMR spectroscopy to comprehensively evaluate protein-excipient interactions between therapeutically relevant proteins and commonly used excipients. Additionally, we evaluate the effect of excipients on thermal and colloidal protein stability, on aggregation kinetics and protein storage stability at elevated temperatures. We show that there is a weak negative correlation between the strength of protein-excipient interactions and effect on enhancing protein thermal stability. We found that the overall protein-excipient binding per se can be a poor criterion for choosing excipients enhancing formulation stability. Experiments on a diverse set of excipients and test proteins reveal that while excipients affect all of the different aspects of protein stability, the effects are very much protein specific, and care must be taken to avoid apparent generalisations if a smaller dataset is being used.
Collapse
|