1
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Guo K, Song J, Bennington P, Pavon AJ, Bothe JR, Xi H, Gunawan RC. Identification of Surfactant Impact on a Monoclonal Antibody Characterization via HPLC-Separation Based and Biophysical Methods. Pharm Res 2024; 41:779-793. [PMID: 38519813 DOI: 10.1007/s11095-024-03684-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 02/26/2024] [Indexed: 03/25/2024]
Abstract
PURPOSE OR OBJECTIVE Surfactants, including polysorbates and poloxamers, play a crucial role in the formulation of therapeutic proteins by acting as solubilizing and stabilizing agents. They help prevent protein aggregation and adsorption, thereby enhancing the stability of drug substance and products., However, it is important to note that utilizing high concentrations of surfactants in protein formulations can present significant analytical challenges, which can ultimately affect the product characterization. METHODS In our study, we specifically investigated the impact of elevated surfactant concentrations on the characterization of monoclonal antibodies. We employed various analytical techniques including size-exclusion chromatography (SEC), capillary electrophoresis (CE-SDS), a cell based functional assay, and biophysical characterization. RESULTS The findings of our study indicate that higher levels of Polysorbate 80 (PS-80) have adverse effects on the measured purity, biological activity, and biophysical characterization of biologic samples. Specifically, the elevated levels of PS-80 cause analytical interferences, which can significantly impact the accuracy and reliability of analytical studies. CONCLUSIONS Our study results highlight a significant risk in analytical investigations, especially in studies involving the isolation and characterization of impurities. It is important to be cautious of surfactant concentrations, as they can become more concentrated during common sample manipulations like buffer exchange. Indeed, the research presented in this work emphasizes the necessity to evaluate the impact on analytical assays when there are substantial alternations in the matrix composition. By doing so, valuable insights can be gained regarding potential challenges associated with assay development and characterization of biologics with complex formulations.
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Affiliation(s)
- Kaizhu Guo
- Biologics Analytical Research and Development, Merck & Co., Inc., Rahway, NJ, 07065, USA.
| | - Jing Song
- Analytical Enabling Capabilities, Merck & Co., Inc., Rahway, NJ, 07065, USA.
| | - Petra Bennington
- Cell-Based Sciences, Analytical Research and Development, Merck & Co., Inc., Rahway, NJ, 07065, USA
| | - Alexander J Pavon
- Biologics Analytical Research and Development, Merck & Co., Inc., Rahway, NJ, 07065, USA
| | - Jameson R Bothe
- Biologics Analytical Research and Development, Merck & Co., Inc., Rahway, NJ, 07065, USA
| | - Hanmi Xi
- Analytical Enabling Capabilities, Merck & Co., Inc., Rahway, NJ, 07065, USA
| | - Rico C Gunawan
- Biologics Analytical Research and Development, Merck & Co., Inc., Rahway, NJ, 07065, USA
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2
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Bharmoria P, Tietze AA, Mondal D, Kang TS, Kumar A, Freire MG. Do Ionic Liquids Exhibit the Required Characteristics to Dissolve, Extract, Stabilize, and Purify Proteins? Past-Present-Future Assessment. Chem Rev 2024; 124:3037-3084. [PMID: 38437627 PMCID: PMC10979405 DOI: 10.1021/acs.chemrev.3c00551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 02/08/2024] [Accepted: 02/19/2024] [Indexed: 03/06/2024]
Abstract
Proteins are highly labile molecules, thus requiring the presence of appropriate solvents and excipients in their liquid milieu to keep their stability and biological activity. In this field, ionic liquids (ILs) have gained momentum in the past years, with a relevant number of works reporting their successful use to dissolve, stabilize, extract, and purify proteins. Different approaches in protein-IL systems have been reported, namely, proteins dissolved in (i) neat ILs, (ii) ILs as co-solvents, (iii) ILs as adjuvants, (iv) ILs as surfactants, (v) ILs as phase-forming components of aqueous biphasic systems, and (vi) IL-polymer-protein/peptide conjugates. Herein, we critically analyze the works published to date and provide a comprehensive understanding of the IL-protein interactions affecting the stability, conformational alteration, unfolding, misfolding, and refolding of proteins while providing directions for future studies in view of imminent applications. Overall, it has been found that the stability or purification of proteins by ILs is bispecific and depends on the structure of both the IL and the protein. The most promising IL-protein systems are identified, which is valuable when foreseeing market applications of ILs, e.g., in "protein packaging" and "detergent applications". Future directions and other possibilities of IL-protein systems in light-harvesting and biotechnology/biomedical applications are discussed.
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Affiliation(s)
- Pankaj Bharmoria
- CICECO
- Aveiro Institute of Materials, Chemistry Department, University of Aveiro, 3810-193 Aveiro, Portugal
- Department
of Smart Molecular, Inorganic and Hybrid Materials, Institute of Materials Science of Barcelona (ICMAB-CSIC), 08193 Bellaterra, Barcelona, Spain
- Department
of Chemistry and Molecular Biology, Wallenberg Centre for Molecular
and Translational Medicine, University of
Gothenburg, SE-412 96 Göteborg, Sweden
| | - Alesia A. Tietze
- Department
of Chemistry and Molecular Biology, Wallenberg Centre for Molecular
and Translational Medicine, University of
Gothenburg, SE-412 96 Göteborg, Sweden
| | - Dibyendu Mondal
- CICECO
- Aveiro Institute of Materials, Chemistry Department, University of Aveiro, 3810-193 Aveiro, Portugal
- Institute
of Plant Genetics (IPG), Polish Academy of Sciences, Strzeszyńska 34, 60-479 Poznań, Poland
- Centre
for Nano and Material Sciences, JAIN (Deemed-to-be
University), Jain Global
Campus, Bangalore 562112, India
| | - Tejwant Singh Kang
- Department
of Chemistry, UGC Center for Advance Studies-II,
Guru Nanak Dev University (GNDU), Amritsar 143005, Punjab, India
| | - Arvind Kumar
- Salt
and Marine Chemicals Division, CSIR-Central
Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar 364002, Gujarat, India
| | - Mara G Freire
- CICECO
- Aveiro Institute of Materials, Chemistry Department, University of Aveiro, 3810-193 Aveiro, Portugal
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3
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Dasnoy S, Illartin M, Queffelec J, Nkunku A, Peerboom C. Combined Effect of Shaking Orbit and Vial Orientation on the Agitation-Induced Aggregation of Proteins. J Pharm Sci 2024; 113:669-679. [PMID: 37611666 DOI: 10.1016/j.xphs.2023.08.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 08/15/2023] [Accepted: 08/15/2023] [Indexed: 08/25/2023]
Abstract
Orbital shaking in a glass vial is a commonly used forced degradation test to evaluate protein propensity for agitation-induced aggregation. Vial shaking in horizontal orientation has been widely recommended to maximize the air-liquid interface area while ensuring solution contact with the stopper. We evaluated the impact of shaking orbit diameter and frequency, and glass vial orientation (horizontal versus vertical) on the aggregation of three proteins prepared in surfactant-free formulation buffers. As soon as an orbit-specific frequency threshold was reached, an increase in turbidity was observed for the three proteins in vertical orientation only when using a 3 mm agitation orbit, and in horizontal orientation only when using a 30 mm agitation orbit. Orthogonal analyses confirmed turbidity was linked to protein aggregation. The most turbid samples had a visually more homogeneous appearance in vertical than in horizontal orientation, in line with the predicted dispersion of air and liquid phases obtained from computational fluid dynamics agitation simulations. Both shaking orbits were used to assess the performance of nonionic surfactants. We show that the propensity of a protein to aggregate in a vial agitated in horizontal or vertical orientation depends on the shaking orbit, and confirm that Brij® 58 and FM1000 prevent proteins from agitation-induced aggregation at lower concentrations than polysorbate 80.
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Affiliation(s)
| | - Marion Illartin
- UCB Pharma, Chemin du Foriest, 1420 Braine-l'Alleud, Belgium; Institut Mines-Télécom (IMT) Mines Albi, Allée des Sciences, 81000 Albi, France
| | - Julie Queffelec
- UCB Pharma, Chemin du Foriest, 1420 Braine-l'Alleud, Belgium; Institut Mines-Télécom (IMT) Mines Albi, Allée des Sciences, 81000 Albi, France
| | - Aubrey Nkunku
- UCB Pharma, Chemin du Foriest, 1420 Braine-l'Alleud, Belgium; ALTEN Belgium, Chaussée de Charleroi 112, 1060 Bruxelles, Belgium
| | - Claude Peerboom
- UCB Pharma, Chemin du Foriest, 1420 Braine-l'Alleud, Belgium
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4
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Desai KG, Colandene JD, Crotts G, Sofa C, Wang N, Blockus B, Mandal B, Wittig K, Shukla A. Transportation of mAb Dosing Solution in Intravenous Bag: Impact of Manual, Vehicle, and Pneumatic Tube System Transportation Methods on Product Quality. Mol Pharm 2023; 20:6474-6491. [PMID: 37962592 DOI: 10.1021/acs.molpharmaceut.3c00859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Monoclonal antibody (mAb) products for intravenous (IV) administration generally require aseptic compounding with a commercial diluent within a pharmacy. The prepared dosing solution in the IV bag may be transported to the dosing location via manual, vehicular, pneumatic tube system (PTS), or a combination of these methods. In this study, the type and level of physical stresses associated with these three methods and their product quality impact for relatively sensitive and stable mAbs were assessed. Vibration was found to be the main stress associated with manual and vehicle transportation methods, although this was at a relatively low level (<1 GRMS/Root-Mean-Square Acceleration). Shock and drop events, at relatively low levels, were also observed with these methods. PTS transportation showed substantially more intense shock, vibration, and drop stresses and the measured levels were up to 91 G/force of acceleration or deceleration, 3.7 GRMS and 39 G, respectively. Using a foam padding insert for PTS transportation reduced the shock level considerably (91 G to 59 G). Transportation of mAb dosing solutions in IV bags via different methods including PTS transportation variables caused a small increase in the subvisible particle counts and there was no change in submicrometer particle distribution. No visible particles and no significant change to soluble aggregate levels were observed after transportation. Strategies such as removal of IV bag headspace prior to transport and in-line filtration poststress reduced the subvisible particles counts. All tested transportation conditions showed negligible impact on other product quality attributes tested. Removal of IV bag headspace prior to PTS transport prevented formation of micro air bubbles and foaming compared to the unaltered IV bag. This study shows examples where manual, vehicle, and PTS transport methods did not significantly impact product quality, and provides evidence that mAb products that are appropriately stabilized in the dosing solution (e.g., with a surfactant) can be transported via a PTS.
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Affiliation(s)
- Kashappa Goud Desai
- Drug Product Development - Steriles, Medicine Development and Supply, GSK, 1250 South Collegeville Avenue, Collegeville, Pennsylvania 19426, United States
| | - James D Colandene
- Drug Product Development - Steriles, Medicine Development and Supply, GSK, 1250 South Collegeville Avenue, Collegeville, Pennsylvania 19426, United States
| | - George Crotts
- Drug Product Development - Steriles, Medicine Development and Supply, GSK, 1250 South Collegeville Avenue, Collegeville, Pennsylvania 19426, United States
| | - Cait Sofa
- Drug Product Development - Steriles, Medicine Development and Supply, GSK, 1250 South Collegeville Avenue, Collegeville, Pennsylvania 19426, United States
| | - Ning Wang
- Drug Product Development - Steriles, Medicine Development and Supply, GSK, 1250 South Collegeville Avenue, Collegeville, Pennsylvania 19426, United States
| | - Brendan Blockus
- Drug Product Development - Steriles, Medicine Development and Supply, GSK, 1250 South Collegeville Avenue, Collegeville, Pennsylvania 19426, United States
| | - Bivash Mandal
- Drug Product Development - Steriles, Medicine Development and Supply, GSK, 1250 South Collegeville Avenue, Collegeville, Pennsylvania 19426, United States
| | - Katie Wittig
- Drug Product Development - Steriles, Medicine Development and Supply, GSK, 1250 South Collegeville Avenue, Collegeville, Pennsylvania 19426, United States
| | - Asha Shukla
- Drug Product Development - Steriles, Medicine Development and Supply, GSK, 1250 South Collegeville Avenue, Collegeville, Pennsylvania 19426, United States
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5
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Zürcher D, Caduff S, Aurand L, Capasso Palmiero U, Wuchner K, Arosio P. Comparison of the Protective Effect of Polysorbates, Poloxamer and Brij on Antibody Stability Against Different Interfaces. J Pharm Sci 2023; 112:2853-2862. [PMID: 37295604 DOI: 10.1016/j.xphs.2023.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 06/02/2023] [Accepted: 06/02/2023] [Indexed: 06/12/2023]
Abstract
Therapeutic proteins and antibodies are exposed to a variety of interfaces during their lifecycle, which can compromise their stability. Formulations, including surfactants, must be carefully optimized to improve interfacial stability against all types of surfaces. Here we apply a nanoparticle-based approach to evaluate the instability of four antibody drugs against different solid-liquid interfaces characterized by different degrees of hydrophobicity. We considered a model hydrophobic material as well as cycloolefin-copolymer (COC) and cellulose, which represent some of the common solid-liquid interfaces encountered during drug production, storage, and delivery. We assess the protective effect of polysorbate 20, polysorbate 80, Poloxamer 188 and Brij 35 in our assay and in a traditional agitation study. While all nonionic surfactants stabilize antibodies against the air-water interface, none of them can protect against hydrophilic charged cellulose. Polysorbates and Brij increase antibody stability in the presence of COC and the model hydrophobic interface, although to a lesser extent compared to the air-water interface, while Poloxamer 188 has a negligible stabilizing effect against these interfaces. These results highlight the challenge of fully protecting antibodies against all types of solid-liquid interfaces with traditional surfactants. In this context, our high-throughput nanoparticle-based approach can complement traditional shaking assays and assist in formulation design to ensure protein stability not only at air-water interfaces, but also at relevant solid-liquid interfaces encountered during the product lifecycle.
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Affiliation(s)
- Dominik Zürcher
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, Switzerland
| | - Severin Caduff
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, Switzerland
| | - Laetitia Aurand
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, Switzerland
| | | | - Klaus Wuchner
- Janssen R&D, BTDS Analytical Development, Schaffhausen, Switzerland
| | - Paolo Arosio
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, Switzerland.
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6
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Vaclaw C, Merritt K, Griffin VP, Whitaker N, Gokhale M, Volkin DB, Ogunyankin MO, Dhar P. Comparison of Protein Particle Formation in IgG1 mAbs Formulated with PS20 Vs. PS80 When Subjected to Interfacial Dilatational Stress. AAPS PharmSciTech 2023; 24:104. [PMID: 37081185 PMCID: PMC10118229 DOI: 10.1208/s12249-023-02561-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 03/28/2023] [Indexed: 04/22/2023] Open
Abstract
Polysorbates (PS) are nonionic surfactants that are commonly included in protein formulations to mitigate the formation of interfacial stress-induced protein particles and thus increase their long-term storage stability. Nonetheless, factors that dictate the efficiency of different polysorbates in mitigating protein particle formation, especially during the application of interfacial stresses, are often ill defined. Here, we used a Langmuir trough to determine the surface activity of two IgG1 monoclonal antibodies formulated with two different polysorbates (PS20 and PS80) when subjected to interfacial dilatational stress. Interfacial properties of these formulations were then correlated with characterization of subvisible protein particles measured by micro-flow imaging (MFI). Both mAbs, when formulated in PS20, demonstrate faster adsorption kinetics and higher surface activity compared to PS80 or surfactant-free formulations. Compression/expansion results suggest that when exposed to interfacial dilatational stresses, both mAb/PS20 formulations display interfacial properties of PS20 alone. In contrast, interfacial properties of both mAb/PS80 formulations suggest mAbs and PS80 are co-adsorbed to the air-water interface. Further, MFI analysis of the interface and the bulk solution confirms that PS20 is more effective than PS80 at mitigating the formation of larger particles in the bulk solution in both mAbs. Concomitantly, the efficiency of PS to prevent interface-induced protein particle formation also depended on the protein's inherent tendency to aggregate at a surfactant-free interface. Together, the studies presented here highlight the importance of determining the interfacial properties of mAbs, surfactants, and their combinations to make informed formulation decisions about the choice of surfactant.
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Affiliation(s)
- Coleman Vaclaw
- Bioengineering Program, School of Engineering, The University of Kansas, 1530 W 15th Street, Lawrence, Kansas, 66045, USA
- Amgen, Thousand Oaks, California, USA
| | - Kimberly Merritt
- Bioengineering Program, School of Engineering, The University of Kansas, 1530 W 15th Street, Lawrence, Kansas, 66045, USA
- Hill's Pet Nutrition, Emporia, Kansas, USA
| | - Valerie P Griffin
- Department of Chemical and Petroleum Engineering, The University of Kansas, 1530 W 15th Street, Lawrence, Kansas, 66045, USA
| | - Neal Whitaker
- Department of Pharmaceutical Chemistry, Vaccine Analytics and Formulation Center, University of Kansas, 2030 Becker Drive, Lawrence, Kansas, 66047, USA
- Sparks Therapeutics, Philadelphia, Pennsylvania, USA
| | - Madhushree Gokhale
- Department of Drug Product Development, Bristol-Myers Squibb, Inc., One Squibb Drive, New Brunswick, New Jersey, 08901, USA
| | - David B Volkin
- Department of Pharmaceutical Chemistry, Vaccine Analytics and Formulation Center, University of Kansas, 2030 Becker Drive, Lawrence, Kansas, 66047, USA
| | - Maria O Ogunyankin
- Department of Drug Product Development, Bristol-Myers Squibb, Inc., One Squibb Drive, New Brunswick, New Jersey, 08901, USA
| | - Prajnaparamita Dhar
- Bioengineering Program, School of Engineering, The University of Kansas, 1530 W 15th Street, Lawrence, Kansas, 66045, USA.
- Department of Chemical and Petroleum Engineering, The University of Kansas, 1530 W 15th Street, Lawrence, Kansas, 66045, USA.
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7
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Designing Formulation Strategies for Enhanced Stability of Therapeutic Peptides in Aqueous Solutions: A Review. Pharmaceutics 2023; 15:pharmaceutics15030935. [PMID: 36986796 PMCID: PMC10056213 DOI: 10.3390/pharmaceutics15030935] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/04/2023] [Accepted: 03/09/2023] [Indexed: 03/15/2023] Open
Abstract
Over the past few decades, there has been a tremendous increase in the utilization of therapeutic peptides. Therapeutic peptides are usually administered via the parenteral route, requiring an aqueous formulation. Unfortunately, peptides are often unstable in aqueous solutions, affecting stability and bioactivity. Although a stable and dry formulation for reconstitution might be designed, from a pharmaco-economic and practical convenience point of view, a peptide formulation in an aqueous liquid form is preferred. Designing formulation strategies that optimize peptide stability may improve bioavailability and increase therapeutic efficacy. This literature review provides an overview of various degradation pathways and formulation strategies to stabilize therapeutic peptides in aqueous solutions. First, we introduce the major peptide stability issues in liquid formulations and the degradation mechanisms. Then, we present a variety of known strategies to inhibit or slow down peptide degradation. Overall, the most practical approaches to peptide stabilization are pH optimization and selecting the appropriate type of buffer. Other practical strategies to reduce peptide degradation rates in solution are the application of co-solvency, air exclusion, viscosity enhancement, PEGylation, and using polyol excipients.
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8
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Addressing Critical Issues Related to Storage and Stability of the Vault Nanoparticle Expressed and Purified from Komagataella phaffi. Int J Mol Sci 2023; 24:ijms24044214. [PMID: 36835627 PMCID: PMC9959619 DOI: 10.3390/ijms24044214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/08/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
The vault nanoparticle is a eukaryotic assembly consisting of 78 copies of the 99-kDa major vault protein. They generate two cup-shaped symmetrical halves, which in vivo enclose protein and RNA molecules. Overall, this assembly is mainly involved in pro-survival and cytoprotective functions. It also holds a remarkable biotechnological potential for drug/gene delivery, thanks to its huge internal cavity and the absence of toxicity/immunogenicity. The available purification protocols are complex, partly because they use higher eukaryotes as expression systems. Here, we report a simplified procedure that combines human vault expression in the yeast Komagataella phaffii, as described in a recent report, and a purification process we have developed. This consists of RNase pretreatment followed by size-exclusion chromatography, which is far simpler than any other reported to date. Protein identity and purity was confirmed by SDS-PAGE, Western blot and transmission electron microscopy. We also found that the protein displayed a significant propensity to aggregate. We thus investigated this phenomenon and the related structural changes by Fourier-transform spectroscopy and dynamic light scattering, which led us to determine the most suitable storage conditions. In particular, the addition of either trehalose or Tween-20 ensured the best preservation of the protein in native, soluble form.
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9
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Insights into the Stabilization of Interferon Alpha by Two Surfactants Revealed by STD-NMR Spectroscopy. J Pharm Sci 2023; 112:404-410. [PMID: 36257338 DOI: 10.1016/j.xphs.2022.10.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 10/12/2022] [Accepted: 10/12/2022] [Indexed: 01/15/2023]
Abstract
Surfactants are commonly used in biopharmaceutical formulations to stabilize proteins against aggregation. However, the choice of a suitable surfactant for a particular protein is decided mostly empirically, and their mechanism of action on molecular level is largely unknown. Here we show that a straightforward label-free method, saturation transfer difference (STD) nuclear magnetic resonance (NMR) spectroscopy, can be used to detect protein-surfactant interactions in formulations of a model protein, interferon alpha. We find that polysorbate 20 binds with its fatty acid to interferon, and that the binding is stronger at pH closer to the isoelectric point of the protein. In contrast, we did not detect interactions between poloxamer 407 and interferon alpha. Neither of the two surfactants affected the tertiary structure and the thermal stability of the protein as evident from circular dichroism and nanoDSF measurements. Interestingly, both surfactants inhibited the formation of subvisible particles during long-term storage, but only polysorbate 20 reduced the amount of small soluble aggregates detected by size-exclusion chromatography. This proof-of-principle study demonstrates how STD-NMR can be employed to quickly assess surfactant-protein interactions and support the choice of surfactant in protein formulation.
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10
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Kopp MRG, Grigolato F, Zürcher D, Das TK, Chou D, Wuchner K, Arosio P. Surface-Induced Protein Aggregation and Particle Formation in Biologics: Current Understanding of Mechanisms, Detection and Mitigation Strategies. J Pharm Sci 2023; 112:377-385. [PMID: 36223809 DOI: 10.1016/j.xphs.2022.10.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 10/05/2022] [Accepted: 10/05/2022] [Indexed: 01/12/2023]
Abstract
Protein stability against aggregation is a major quality concern for the production of safe and effective biopharmaceuticals. Amongst the different drivers of protein aggregation, increasing evidence indicates that interactions between proteins and interfaces represent a major risk factor for the formation of protein aggregates in aqueous solutions. Potentially harmful surfaces relevant to biologics manufacturing and storage include air-water and silicone oil-water interfaces as well as materials from different processing units, storage containers, and delivery devices. The impact of some of these surfaces, for instance originating from impurities, can be difficult to predict and control. Moreover, aggregate formation may additionally be complicated by the simultaneous presence of interfacial, hydrodynamic and mechanical stresses, whose contributions may be difficult to deconvolute. As a consequence, it remains difficult to identify the key chemical and physical determinants and define appropriate analytical methods to monitor and predict protein instability at these interfaces. In this review, we first discuss the main mechanisms of surface-induced protein aggregation. We then review the types of contact materials identified as potentially harmful or detected as potential triggers of proteinaceous particle formation in formulations and discuss proposed mitigation strategies. Finally, we present current methods to probe surface-induced instabilities, which represent a starting point towards assays that can be implemented in early-stage screening and formulation development of biologics.
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Affiliation(s)
- Marie R G Kopp
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
| | - Fulvio Grigolato
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
| | - Dominik Zürcher
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
| | | | | | | | - Paolo Arosio
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland.
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11
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Klich JH, Kasse CM, Mann JL, Huang Y, d’Aquino AI, Grosskopf AK, Baillet J, Fuller GG, Appel EA. Stable High-Concentration Monoclonal Antibody Formulations Enabled by an Amphiphilic Copolymer Excipient. ADVANCED THERAPEUTICS 2023; 6:2200102. [PMID: 36684707 PMCID: PMC9854243 DOI: 10.1002/adtp.202200102] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Monoclonal antibodies are a staple in modern pharmacotherapy. Unfortunately, these biopharmaceuticals are limited by their tendency to aggregate in formulation, resulting in poor stability and often requiring low concentration drug formulations. Moreover, existing excipients designed to stabilize these formulations are often limited by their toxicity and tendency to form particles such as micelles. Here, we demonstrate the ability of a simple "drop-in", amphiphilic copolymer excipient to enhance the stability of high concentration formulations of clinically-relevant monoclonal antibodies without altering their pharmacokinetics or injectability. Through interfacial rheology and surface tension measurements, we demonstrate that the copolymer excipient competitively adsorbs to formulation interfaces. Further, through determination of monomeric composition and retained bioactivity through stressed aging, we show that this excipient confers a significant stability benefit to high concentration antibody formulations. Finally, we demonstrate that the excipient behaves as an inactive ingredient, having no significant impact on the pharmacokinetic profile of a clinically relevant antibody in mice. This amphiphilic copolymer excipient demonstrates promise as a simple formulation additive to create stable, high concentration antibody formulations, thereby enabling improved treatment options such as a route-of-administration switch from low concentration intravenous (IV) to high concentration subcutaneous (SC) delivery while reducing dependence on the cold chain.
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Affiliation(s)
| | | | - Joseph L. Mann
- Department of Materials Science & Engineering, Stanford University, Stanford, CA 94305, USA
| | - Yaoqi Huang
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Andrea I. d’Aquino
- Department of Materials Science & Engineering, Stanford University, Stanford, CA 94305, USA
| | - Abigail K. Grosskopf
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Julie Baillet
- Department of Materials Science & Engineering, Stanford University, Stanford, CA 94305, USA
| | - Gerald G. Fuller
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Eric A. Appel
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA; Department of Materials Science & Engineering, Stanford University, Stanford, CA 94305, USA; Department of Pediatrics – Endocrinology, Stanford University School of Medicine, Stanford, CA 94305, USA; ChEM-H Institute, Stanford University, Stanford, CA 94305, USA; Woods Institute for the Environment, Stanford University, Stanford, CA 94305, USA
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12
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Morales AM, Sreedhara A, Buecheler J, Brosig S, Chou D, Christian T, Das T, de Jong I, Fast J, Jagannathan B, Moussa EM, Nejadnik MR, Prajapati I, Radwick A, Rahman Y, Singh S. End-to-End Approach to Surfactant Selection, Risk Mitigation, and Control Strategies for Protein-Based Therapeutics. AAPS J 2022; 25:6. [PMID: 36471030 DOI: 10.1208/s12248-022-00773-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 10/31/2022] [Indexed: 12/12/2022] Open
Abstract
A survey performed by the AAPS Drug Product Handling community revealed a general, mostly consensus, approach to the strategy for the selection of surfactant type and level for biopharmaceutical products. Discussing and building on the survey results, this article describes the common approach for surfactant selection and control strategy for protein-based therapeutics and focuses on key studies, common issues, mitigations, and rationale. Where relevant, each section is prefaced by survey responses from the 22 anonymized respondents. The article format consists of an overview of surfactant stabilization, followed by a strategy for the selection of surfactant level, and then discussions regarding risk identification, mitigation, and control strategy. Since surfactants that are commonly used in biologic formulations are known to undergo various forms of degradation, an effective control strategy for the chosen surfactant focuses on understanding and controlling the design space of the surfactant material attributes to ensure that the desired material quality is used consistently in DS/DP manufacturing. The material attributes of a surfactant added in the final DP formulation can influence DP performance (e.g., protein stability). Mitigation strategies are described that encompass risks from host cell proteins (HCP), DS/DP manufacturing processes, long-term storage, as well as during in-use conditions.
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Affiliation(s)
- Annette Medina Morales
- Dosage Form Design and Development, BioPharmaceuticals Development, R&D, AstraZeneca, 1 Medimmune Way, Gaithersburg, Maryland, 20878, USA.
| | - Alavattam Sreedhara
- Genentech, Pharmaceutical Development, South San Francisco, California, 94080, USA
| | - Jakob Buecheler
- Technical Research and Development, Novartis Pharma AG, 4002, Basel, Switzerland
| | - Sebastian Brosig
- Technical Research and Development, Novartis Pharma AG, 4002, Basel, Switzerland
| | - Danny Chou
- Compassion BioSolution, LLC, Lomita, California, 90717, USA
| | | | - Tapan Das
- Analytical Development and Attribute Sciences, Bristol Myers Squibb, New Brunswick, New Jersey, USA
| | - Isabella de Jong
- Genentech, Pharmaceutical Development, South San Francisco, California, 94080, USA
| | - Jonas Fast
- Pharmaceutical Development, F. Hoffmann-La Roche Ltd, CH-4070, Basel, Switzerland
| | | | - Ehab M Moussa
- Drug Product Development, AbbVie, North Chicago, Illinios, 60064, USA
| | - M Reza Nejadnik
- Department of Pharmaceutical Sciences & Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, Iowa, 52242, USA
| | - Indira Prajapati
- Dosage Form Design and Development, BioPharmaceuticals Development, R&D, AstraZeneca, 1 Medimmune Way, Gaithersburg, Maryland, 20878, USA
| | | | - Yusra Rahman
- Department of Pharmaceutical Sciences & Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, Iowa, 52242, USA
| | - Shubhadra Singh
- GlaxoSmithKline R&D, Biopharmaceutical Product Sciences, Collegeville, Philadelphia, Pennsylvania, 19426, USA
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13
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Zoeller MP, Hafiz S, Marx A, Erwin N, Fricker G, Carpenter JF. Exploring the Protein Stabilizing Capability of Surfactants Against Agitation Stress and the Underlying Mechanisms. J Pharm Sci 2022; 111:3261-3274. [PMID: 36096287 DOI: 10.1016/j.xphs.2022.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 01/05/2023]
Abstract
The application of surfactants in liquid protein formulation is a common practice to protect proteins from liquid-air interface-induced protein aggregation. Typically, Polysorbate 20 or 80 are used, but degradation of these surfactants can result in particle formation and/or protein degradation. The purpose of the current study was to directly compare three alternative protein stabilizing molecules - Poloxamer 188, hydroxypropyl-cyclodextrin and a trehalose-based surfactant - to Polysorbate 80 for their capacities to reduce agitation-induced protein aggregation and particle formation; and furthermore, investigate their underlying protein stabilizing mechanisms. To this end, a small-volume, rapid agitation stress approach was used to quantify the molecules' abilities to stabilize two model proteins. This assay was presented to be a powerful tool to screen the protein stabilizing capability of surfactants using minimum of material and time. SEC, turbidity measurements and particle analysis showed an efficient protein stabilization of all tested surfactants as well as cyclodextrin. STD-NMR and dynamic surface tension measurements indicated the competitive surface adsorption to be the main protein stabilizing mechanism of the three surfactants tested. It might also play a role to some extent in the protein stabilization by HPβCD. However, additional mechanisms might also contribute to protein stabilization leaving room for further investigations.
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Affiliation(s)
- Michelle Pascale Zoeller
- Merck KGaA, Darmstadt, Germany; Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls-University, Heidelberg, Germany
| | | | | | | | - Gert Fricker
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls-University, Heidelberg, Germany
| | - John F Carpenter
- University of Colorado Anschutz Medical Campus, Dept. of Pharmaceutical Sciences, Aurora, CO, USA.
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14
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Ebadi M, McCague C, Vallee O, Taylor PK, Lee AHY, Bahrami M. Salt and surfactant coated filters with antiviral properties and low pressure drop for prospective SARS-CoV2 applications. Sci Rep 2022; 12:11546. [PMID: 35798756 PMCID: PMC9262935 DOI: 10.1038/s41598-022-15203-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 06/20/2022] [Indexed: 11/24/2022] Open
Abstract
The COVID-19 pandemic motivated research on antiviral filtration used in personal protective equipment and HVAC systems. In this research, three coating compositions of NaCl, Tween 20 surfactant, and NaCl-Tween 20 were examined on polypropylene spun-bond filters. The pressure drop, coverage, and crystal size of the coating methods and compositions were measured. Also, in vitro plaque assays of the Phi6 Bacteriophage on Pseudomonas syringae as a simulation of an enveloped respiratory virus was performed to investigate the antiviral properties of the coating. NaCl and NaCl-Tween 20 increased the pressure drop in the range of 40-50 Pa for a loading of 5 mg/cm2. Tween 20 has shown an impact on the pressure drop as low as 10 Pa and made the filter surface more hydrophilic which kept the virus droplets on the surface. The NaCl-Tween 20 coated samples could inactivate 108 plaque forming units (PFU) of virus in two hours of incubation. Tween 20 coated filters with loading as low as 0.2 mg/cm2 reduced the activity of 108 PFU of virus from 109 to 102 PFU/mL after 2 h of incubation. NaCl-coated samples with a salt loading of 15 mg/cm2 could not have antiviral properties higher than reducing the viral activity from 109 to 105 PFU/mL in 4 h of incubation.
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Affiliation(s)
- Milad Ebadi
- Laboratory for Alternative Energy Conversion (LAEC), School of Mechatronic Systems Engineering, Simon Fraser University, Surrey, BC, V3T 0A3, Canada
| | - Claire McCague
- Laboratory for Alternative Energy Conversion (LAEC), School of Mechatronic Systems Engineering, Simon Fraser University, Surrey, BC, V3T 0A3, Canada
| | - Ophelia Vallee
- School of Health Science, British Columbia Institute of Technology, SW 3, White Ave, Burnaby, BC, V5G 3H2, Canada
| | - Patrick K Taylor
- Department of Molecular Biology and Biochemistry, Simon Fraser University, 8888 University Drive, Burnaby, B.C, V5A 1S6, Canada
| | - Amy H Y Lee
- Department of Molecular Biology and Biochemistry, Simon Fraser University, 8888 University Drive, Burnaby, B.C, V5A 1S6, Canada
| | - Majid Bahrami
- Laboratory for Alternative Energy Conversion (LAEC), School of Mechatronic Systems Engineering, Simon Fraser University, Surrey, BC, V3T 0A3, Canada.
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15
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Wijakmatee T, Shimoyama Y, Orita Y. Integrated Micro-flow Process of Emulsification and Supercritical Fluid Emulsion Extraction for Stearic Acid Nanoparticle Production. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c05062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thossaporn Wijakmatee
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, S1-33, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Yusuke Shimoyama
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, S1-33, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Yasuhiko Orita
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, S1-33, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8550, Japan
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16
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Kim NA, Noh GY, Hada S, Na KJ, Yoon HJ, Park KW, Park YM, Jeong SH. Enhanced protein aggregation suppressor activity of N-acetyl-l-arginine for agitation-induced aggregation with silicone oil and its impact on innate immune responses. Int J Biol Macromol 2022; 216:42-51. [PMID: 35779650 DOI: 10.1016/j.ijbiomac.2022.06.176] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/07/2022] [Accepted: 06/26/2022] [Indexed: 11/26/2022]
Abstract
Previously, N-acetyl-l-arginine (NALA) suppressed the aggregation of intravenous immunoglobulins (IVIG) more effectively and with a minimum decrease in transition temperature (Tm) than arginine monohydrochloride. In this study, we performed a comparative study with etanercept (commercial product: Enbrel®), where 25 mM arginine monohydrochloride (arginine) was added to the prefilled syringe. The biophysical properties were investigated using differential scanning calorimetry (DSC), dynamic light scattering (DLS), size-exclusion chromatography (SEC), and flow-imaging microscopy (FI). NALA retained the transition temperature of etanercept better than arginine, where arginine significantly reduced the Tm by increasing its concentration. End-over-end rotation was applied to each formulation for 5 days to accelerate protein aggregation and subvisible particle formation. Higher monomeric content was retained with NALA with a decrease in particle level. Higher aggregation onset temperature (Tagg) was detected for etanercept with NALA than arginine. The results of this comparative study were consistent with previous study, suggesting that NALA could be a better excipient for liquid protein formulations. Agitated IVIG and etanercept were injected into C57BL/6 J female mice to observe immunogenic response after 24 h. In the presence of silicone oil, NALA dramatically reduced IL-1 expression, implying that decreased aggregation was related to reduced immunogenicity of both etanercept and IVIG.
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Affiliation(s)
- Nam Ah Kim
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Gyeonggi 10326, Republic of Korea; College of Pharmacy, Mokpo National University, Jeonnam 58554, Republic of Korea.
| | - Ga Yeon Noh
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Gyeonggi 10326, Republic of Korea
| | - Shavron Hada
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Gyeonggi 10326, Republic of Korea
| | - Kyung Jun Na
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Gyeonggi 10326, Republic of Korea
| | - Hee-Jung Yoon
- Division of Health and Kinesiology, Incheon National University, Incheon 22012, Republic of Korea
| | - Ki-Woong Park
- Division of Health and Kinesiology, Incheon National University, Incheon 22012, Republic of Korea.
| | - Young-Min Park
- Division of Health and Kinesiology, Incheon National University, Incheon 22012, Republic of Korea.
| | - Seong Hoon Jeong
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Gyeonggi 10326, Republic of Korea.
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17
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Fongaro B, Cian V, Gabaldo F, De Paoli G, Miolo G, Polverino de Laureto P. Managing antibody stability: effects of stressors on Ipilimumab from the commercial formulation to diluted solutions. Eur J Pharm Biopharm 2022; 176:54-74. [PMID: 35595030 DOI: 10.1016/j.ejpb.2022.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 05/05/2022] [Accepted: 05/07/2022] [Indexed: 11/19/2022]
Abstract
The stability of the monoclonal antibody Ipilimumab, the active ingredient of Yervoy®, used for the treatment of different types of cancer, has been investigated. Shaking/temperature, light exposure and dilution, protein drug renowned stressors, were applied on a 30-45-day series of experiments to observe the physicochemical and biological behavior of the molecule. Ipilimumab demonstrated stability under shaking and heat up to 45 days, without any unfolding during the induced combined stressors. Under artificial sunlight, the mAb showed to be sensitive even under the minimum dose tested (720 kJ/m2) with formation of aggregates, particularly when diluted in glucose solution. The light-induced soluble aggregates were higher in the case of diluted samples irradiated with much higher light doses (10460 kJ/m2). The aggregation of Ipilimumab took place also by irradiating the non-diluted formulation, indicating that the excipients did not protect completely the drug from photodegradation. Amino acid oxidation and deamidation were found. Anyway, after irradiation with both light doses, soluble Ipilimumab maintained its typical β-sheets structure, and the tertiary structure was nearly maintained compared to the dark. As an additional stressor test, the effect of dilution on the formulation was monitored by using a saline solution (1 mg/mL Ipilimumab) applied during hospital infusion. After two days from dilution, the protein exhibited aggregation and chemical modifications including oxidation and deamidation. When stability conditions were compromised, the viability of human cell lines treated with the stressed formulation slight decreased suggesting low potential biological toxicity of the modified mAb. As this study has demonstrated the susceptibility of Ipilimumab to light, specific solutions, and excipients as well as the use of safe light in manufacturing, handling, and storage of this drug should be promoted. Moreover, the use of proper primary and secondary packaging should be indicated to avoid the detrimental effect of light on the mAb structure and efficacy. A detailed understanding of Ipilimumab physicochemical properties, integrity, and stability could assure the best storage and manipulation conditions for its safe and successful application in cancer therapy.
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Affiliation(s)
- Benedetta Fongaro
- Department of Pharmaceutical and Pharmacological Sciences, Via Marzolo, 5, 35131 Padova, Italy
| | - Valentina Cian
- Department of Pharmaceutical and Pharmacological Sciences, Via Marzolo, 5, 35131 Padova, Italy
| | - Francesca Gabaldo
- Department of Pharmaceutical and Pharmacological Sciences, Via Marzolo, 5, 35131 Padova, Italy
| | - Giorgia De Paoli
- Molecular and Clinical Medicine, School of Medicine, University of Dundee Nethergate, Dundee, Scotland DD1 4HN, UK
| | - Giorgia Miolo
- Department of Pharmaceutical and Pharmacological Sciences, Via Marzolo, 5, 35131 Padova, Italy.
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18
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Salehi S, Nourbakhsh MS, Yousefpour M, Rajabzadeh G, Sahab-Negah S. Co-encapsulation of Curcumin and Boswellic Acids in Chitosan-Coated Niosome: An In-vitro Digestion Study. J Microencapsul 2022; 39:226-238. [PMID: 35384786 DOI: 10.1080/02652048.2022.2060360] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
AIM In this study chitosan-coated niosome (ChN) was utilized for bioavailability enhancement of curcumin (Cn) and boswellic acids (BAs). METHODS The bare niosome (BN) was prepared by the heating method and optimized by using the mixture design procedure. Physicochemical stability, as well as the in vitro release, and bioavailability of Cn and BAs in BN and ChN were studied. RESULTS The optimized BN had a mean diameter of 70.00 ± 0.21 nm and surface charge of -31.00 ± 0.25 mv, which changed to 60.01 ± 0.20 nm and +40.00 ± 0, respectively, in ChN. In-vitro digestion study revealed chitosan layer augmented the bioavailability of Cn and BAs to 79.02 ± 0.13 and 81 ± 0.10, respectively. The chitosan layer obviously improved the physical stability of Cn and BA in the niosome vehicle, by means of vesicle size, zeta potential, and encapsulation efficiency. CONCLUSION The Chitosan-coated niosome was considered to be promising delivery system for increasing the bioavailability of Cn and BAs.
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Affiliation(s)
- Sahar Salehi
- Ph. D Candidate, Faculty of Materials and Metallurgical Engineering, Semnan University, Semnan, Iran.
| | - Mohammad Sadegh Nourbakhsh
- Associate Professor, Biomedical Engineering- Biomaterials, Faculty of Materials and Metallurgical Engineering, Semnan University, Semnan, Iran. P.O.Box: 19111-35131 - Tel - Fax: +98 23 33383166 E-mail: ORCiD: 0000-0002-5252-4047
| | - Mardali Yousefpour
- Professor, Faculty of Materials and Metallurgical Engineering, Semnan University, Semnan, Iran. P.O.Box: 19111-35131 Tel Fax: +98 23 3383166 E-mail: ORCiD: 0000-0002-7240-0877
| | - Ghadir Rajabzadeh
- Professor, Department of Food Nanotechnology, Research Institute of Food Science and Technology, Mashhad, Iran, P.O.Box: 91851-76933 Tel Fax: +98 51 35425406 E-mail: ORCiD: 0000-0001-5073-9450
| | - Sajad Sahab-Negah
- Assistant Professor, Neuroscience Research center, Mashhad University of Medical Sciences, Mashhad, Iran.,Shefa Neuroscience Research Center, Khatam Alanbia Hospital, Teharn, Iran P.O.Box: 91779-48564 Tel Fax: +98 51 38828560 E-mail: ORCiD: 0000-0002-2242-9794
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19
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de Castro RB, de Souza ACA, Pavione NDRT, de Moraes JVB, Ribeiro IC, de Melo Agripino J, Bressan GC, de Souza Vasconcellos R, Silva-Júnior A, Fietto JLR. Urea, salts, and Tween 20 influence on adsorption of IgG and Leishmania rNTPDase2 to nitrocellulose. Anal Biochem 2022; 646:114648. [PMID: 35276071 DOI: 10.1016/j.ab.2022.114648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 03/03/2022] [Accepted: 03/07/2022] [Indexed: 11/01/2022]
Abstract
Lateral flow immunochromatography is a widely used technique for immunological assays. Construction of test and control lines is mostly done by antigen adsorption to nitrocellulose membranes, a process not fully understood. This study aimed to evaluate the influence of urea, salts, and Tween 20, on adsorption. The performance of canine IgG in water and in buffer containing urea and salts (pH 8.3) were compared to observe if the interferents would lead to protein stripping when challenged with increasing concentrations of Tween 20 in the lateral flow buffer. Immobilization of the rLiNTPDase2, an antigen for Canine Leishmaniasis diagnosis, was evaluated and compared to the rLbNTPDase2 by the same method. There were no differences between adsorption coefficients of IgG in water and in buffer, but high salt and urea concentrations seems to stabilize and enhance IgG immobilization. Adsorption performance between canine IgG and rNTPDases had different patterns, but was highly similar between rNTPDases, indicating that protein identity may have an important role. Also, low concentrations of Tween 20 in the flow solution may aid the maintenance of rNTPDase2 on the strips. Our results bring insights about protein adsorption and perspectives about the influence of urea, salts and Tween 20 on this process.
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Affiliation(s)
- Raissa Barbosa de Castro
- Biochemistry and Molecular Biology Department, Universidade Federal de Viçosa, Av. P. H. Rolfs, s/n, Campus Universitário, CEP, 36570-000, Viçosa, MG, Brazil
| | - Anna Cláudia Alves de Souza
- Biochemistry and Molecular Biology Department, Universidade Federal de Viçosa, Av. P. H. Rolfs, s/n, Campus Universitário, CEP, 36570-000, Viçosa, MG, Brazil
| | - Nancy da Rocha Torres Pavione
- General Biology Department, Universidade Federal de Viçosa, Av. P. H. Rolfs, s/n, Campus Universitário, CEP, 36570-000, Viçosa, MG, Brazil
| | - João Victor Badaró de Moraes
- General Biology Department, Universidade Federal de Viçosa, Av. P. H. Rolfs, s/n, Campus Universitário, CEP, 36570-000, Viçosa, MG, Brazil
| | - Isadora Cunha Ribeiro
- Biochemistry and Molecular Biology Department, Universidade Federal de Viçosa, Av. P. H. Rolfs, s/n, Campus Universitário, CEP, 36570-000, Viçosa, MG, Brazil
| | - Joice de Melo Agripino
- Biochemistry and Molecular Biology Department, Universidade Federal de Viçosa, Av. P. H. Rolfs, s/n, Campus Universitário, CEP, 36570-000, Viçosa, MG, Brazil
| | - Gustavo Costa Bressan
- Biochemistry and Molecular Biology Department, Universidade Federal de Viçosa, Av. P. H. Rolfs, s/n, Campus Universitário, CEP, 36570-000, Viçosa, MG, Brazil
| | - Raphael de Souza Vasconcellos
- Biochemistry and Molecular Biology Department, Universidade Federal de Viçosa, Av. P. H. Rolfs, s/n, Campus Universitário, CEP, 36570-000, Viçosa, MG, Brazil
| | - Abelardo Silva-Júnior
- Veterinarian Department, Universidade Federal de Viçosa, Av. P. H. Rolfs, s/n, Campus Universitário, CEP, 36570-000, Viçosa, MG, Brazil
| | - Juliana Lopes Rangel Fietto
- Biochemistry and Molecular Biology Department, Universidade Federal de Viçosa, Av. P. H. Rolfs, s/n, Campus Universitário, CEP, 36570-000, Viçosa, MG, Brazil.
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20
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Santos Gomes B, Morgan DJ, Langbein W, Borri P, Masia F. Biofunctionalisation of gallium arsenide with neutravidin. J Colloid Interface Sci 2022; 608:2399-2406. [PMID: 34794804 DOI: 10.1016/j.jcis.2021.10.135] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 10/20/2021] [Accepted: 10/24/2021] [Indexed: 01/09/2023]
Abstract
Gallium arsenide (GaAs) is a promising candidate as a platform for optical biosensing devices due to its enabling optoelectronic properties. However, the biofunctionalisation of the GaAs surface has not received much attention compared to gold, carbon and silicon surfaces. Here we report a study presenting a physicochemical surface characterisation of the GaAs surface along the functionalisation with a high-affinity bioconjugation pair widely explored in the life sciences - biotin and neutravidin. Combined X-ray photoelectron spectroscopy (XPS), wettability measurements and spectroscopic ellipsometry were used for a reliable characterisation of the surface functionalisation process. The results suggest that a film with a thickness lower than 10 nm was formed, with a neutravidin to biotin ratio of 1:25 on the GaAs surface. Reduction of non-specific binding of the protein to the surface was achieved by optimising the protein buffer and rinsing steps. This study shows the feasibility of using GaAs as a platform for specific biomolecular recognition, paving the way to a new generation of optoelectronic biosensors.
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Affiliation(s)
| | - David J Morgan
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff CF10 3AT, United Kingdom
| | - Wolfgang Langbein
- School of Physics & Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom
| | - Paola Borri
- School of Biosciences, Cardiff University, Cardiff CF10 3AX, United Kingdom
| | - Francesco Masia
- School of Biosciences, Cardiff University, Cardiff CF10 3AX, United Kingdom
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21
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Optimization of Emulsification Conditions on Ethanol Extract of Taiwanese Green Propolis Using Polysorbate and Its Immunomodulatory Effects in Broilers. Animals (Basel) 2022; 12:ani12040446. [PMID: 35203153 PMCID: PMC8868552 DOI: 10.3390/ani12040446] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 02/09/2022] [Accepted: 02/09/2022] [Indexed: 02/05/2023] Open
Abstract
Simple Summary Taiwanese green propolis (TGP) ethanol extract has been shown to have a wide range of biological activities, such as antimicrobial and anti-inflammatory properties. However, extraction using ethanol limits the use of TGP as an ingredient in animal feeds. In addition, the effect of TGP ethanol extract on immunomodulation in broilers is still unclear. In order to increase the utilization of TGP ethanol extract in poultry productivity, this study aimed to establish the optimal emulsification conditions for TGP ethanol extract using polysorbate and investigate its effectiveness in improving immune response in broilers. Abstract Beeswax and resin are the main components of propolis, both of which are hydrophobic. The use of emulsifiers helps to improve the extraction of active propolis compounds and makes them more widely used. In this study, we investigated the optimal parameters for the emulsification of Taiwanese green propolis (TGP) using different polysorbates (polysorbate-20, polysorbate-60, and polysorbate-80) and evaluated the effects on the immunomodulatory response in broilers. The results showed that 4 mg/mL of TGP in combination with 2% polysorbate-60 at 60 °C for 60 min significantly decreased the undissolved particle size of ethanol extract of TGP during the emulsification. The bioactive compounds of TGP, the propolins (C, D, F, G, and H), were also detected after emulsification. Supplementation of emulsified TGP (eTGP) in the drinking water of broilers before and after vaccination significantly enhanced the antibody titer response to infectious bronchitis virus at 28 days of age. In the lipopolysaccharide-challenged model, supplementation of eTGP in the drinking water of broilers decreased pro-inflammatory gene expression and increased anti-inflammatory gene expression. These results together suggested that the polysorbate-60 could effectively emulsify the ethanol extract of TGP. Moreover, eTGP could be used as a vaccine adjuvant and an immunomodulator to improve the immune response of broilers.
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22
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Chaschin IS, Britikov DV, Khugaev GA, Salokhedinova RR, Zubko AV, Abramchuk SS, Petlenko AA, Muratov RM, Bakuleva NP. Decellularization of the human donor aortic conduit by a new hybrid treatment in a multicomponent system with supercritical CO2 and Tween 80. J Supercrit Fluids 2022. [DOI: 10.1016/j.supflu.2021.105452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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23
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Zhou X, Fennema Galparsoro D, Østergaard Madsen A, Vetri V, van de Weert M, Mørck Nielsen H, Foderà V. Polysorbate 80 controls Morphology, structure and stability of human insulin Amyloid-Like spherulites. J Colloid Interface Sci 2022; 606:1928-1939. [PMID: 34695760 DOI: 10.1016/j.jcis.2021.09.132] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 09/09/2021] [Accepted: 09/21/2021] [Indexed: 01/09/2023]
Abstract
Amyloid protein aggregates are not only associated with neurodegenerative diseases and may also occur as unwanted by-products in protein-based therapeutics. Surfactants are often employed to stabilize protein formulations and reduce the risk of aggregation. However, surfactants alter protein-protein interactions and may thus modulate the physicochemical characteristics of any aggregates formed. Human insulin aggregation was induced at low pH in the presence of varying concentrations of the surfactant polysorbate 80. Various spectroscopic and imaging methods were used to study the aggregation kinetics, as well as structure and morphology of the formed aggregates. Molecular dynamics simulations were employed to investigate the initial interaction between the surfactant and insulin. Addition of polysorbate 80 slowed down, but did not prevent, aggregation of insulin. Amyloid spherulites formed under all conditions, with a higher content of intermolecular beta-sheets in the presence of the surfactant above its critical micelle concentration. In addition, a denser packing was observed, leading to a more stable aggregate. Molecular dynamics simulations suggested a tendency for insulin to form dimers in the presence of the surfactant, indicating a change in protein-protein interactions. It is thus shown that surfactants not only alter aggregation kinetics, but also affect physicochemical properties of any aggregates formed.
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Affiliation(s)
- Xin Zhou
- Drug Delivery and Biophysics of Biopharmaceuticals, Department of Pharmacy, University of Copenhagen, Universitetsparken 2, Copenhagen 2100, Denmark
| | - Dirk Fennema Galparsoro
- Dipartimento di Fisica e Chimica, Università di Palermo, Viale delle Scienze, Ed. 18, Palermo 90128, Italy
| | - Anders Østergaard Madsen
- Manufacturing and Materials, Department of Pharmacy, University of Copenhagen, Universitetsparken 2, Copenhagen 2100, Denmark
| | - Valeria Vetri
- Dipartimento di Fisica e Chimica, Università di Palermo, Viale delle Scienze, Ed. 18, Palermo 90128, Italy.
| | - Marco van de Weert
- Drug Delivery and Biophysics of Biopharmaceuticals, Department of Pharmacy, University of Copenhagen, Universitetsparken 2, Copenhagen 2100, Denmark
| | - Hanne Mørck Nielsen
- Drug Delivery and Biophysics of Biopharmaceuticals, Department of Pharmacy, University of Copenhagen, Universitetsparken 2, Copenhagen 2100, Denmark
| | - Vito Foderà
- Drug Delivery and Biophysics of Biopharmaceuticals, Department of Pharmacy, University of Copenhagen, Universitetsparken 2, Copenhagen 2100, Denmark.
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24
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Argentou E, Amador C, Massey Brooker AD, Bakalis S, Fryer PJ, Zhang ZJ. Modulating the surface and mechanical properties of textile by oil-in-water emulsion design. RSC Adv 2022; 12:2160-2170. [PMID: 35425269 PMCID: PMC8979224 DOI: 10.1039/d1ra07961a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 12/30/2021] [Indexed: 12/15/2022] Open
Abstract
The synergistic effect of oil viscosity and oil droplet size on the deposition profile of oil on cotton fabric was studied using polydimethylsiloxane (PDMS) as a model oil-in-water emulsion system. Under the same preparation conditions, low viscosity PDMS produced emulsions containing small droplets, which resulted in a uniform surface deposition profile, whilst high viscosity PDMS resulted in a localised deposition profile. Interfacial phenomena such as wicking and penetration of PDMS into cotton fabrics were found to be viscosity-dependent, which agrees with the surface deposition data. Both mechanical characterisation (friction, compression, stiffness) and consumer evaluation confirm that the fabrics treated by the emulsion containing low viscosity PDMS were preferred, suggesting that a homogeneous surface deposition and an excellent penetration profile of PDMS are critical for maximising tactile sensorial benefits, which could be accomplished by optimising the emulsion formulation to contain oil of low viscosity and small PDMS droplets. The synergistic effect of oil viscosity and oil droplet size on the deposition profile of oil on cotton fabric was studied using polydimethylsiloxane (PDMS) as a model oil-in-water emulsion system.![]()
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Affiliation(s)
- Evangelia Argentou
- School of Chemical Engineering, University of Birmingham Edgbaston Birmingham U.K. B15 2TT UK .,Procter & Gamble, Newcastle Innovation Centre Newcastle-upon-Tyne U.K. NE12 9TS UK
| | - Carlos Amador
- Procter & Gamble, Newcastle Innovation Centre Newcastle-upon-Tyne U.K. NE12 9TS UK
| | | | - Serafim Bakalis
- School of Chemical Engineering, University of Birmingham Edgbaston Birmingham U.K. B15 2TT UK .,Department of Food Science, University of Copenhagen Rolighedsvej 26 Frederiksberg DK-1958 Denmark
| | - Peter J Fryer
- School of Chemical Engineering, University of Birmingham Edgbaston Birmingham U.K. B15 2TT UK
| | - Zhenyu Jason Zhang
- School of Chemical Engineering, University of Birmingham Edgbaston Birmingham U.K. B15 2TT UK
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25
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Jakaria SM, Budil DE, Murtagh J. Glycopeptide antibiotic drug stability in aqueous solution. AAPS OPEN 2022; 8:20. [PMCID: PMC9742044 DOI: 10.1186/s41120-022-00067-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 11/11/2022] [Indexed: 12/14/2022] Open
Abstract
Glycopeptide antimicrobials are a class of naturally occurring or semi-synthetic glycosylated products that have shown antibacterial activity against gram-positive organisms by inhibiting cell-wall synthesis. In most cases, these drugs are prepared in dry powder (lyophilized) form due to chemical and physical instability in aqueous solution; however, from an economic and practical point of view, liquid formulations are preferred. Researchers have recently found ways to formulate some glycopeptide antibiotic therapeutic drugs in aqueous solution at refrigerated or room temperature. Chemical degradation can be significantly slowed by formulating them at a defined pH with specific buffers, avoiding oxygen reactive species, and minimizing solvent exposure. Sugars, amino acids, polyols, and surfactants can reduce physical degradation by restricting glycopeptide mobility and reducing solvent interaction. This review focuses on recent studies on glycopeptide antibiotic drug stability in aqueous solution. It is organized into three sections: (i) glycopeptide antibiotic instability due to chemical and physical degradation, (ii) strategies to improve glycopeptide antibiotic stability in aqueous solution, and (iii) a survey of glycopeptide antibiotic drugs currently available in the market and their stability based on published literature and patents. Antimicrobial resistance deaths are expected to increase by 2050, making heat-stable glycopeptides in aqueous solution an important treatment option for multidrug-resistant and extensively drug-resistant pathogens. In conclusion, it should be possible to formulate heat stable glycopeptide drugs in aqueous solution by understanding the degradation mechanisms of this class of therapeutic drugs in greater detail, making them easily accessible to developing countries with a lack of cold chains.
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Affiliation(s)
- Sardar M. Jakaria
- Hikma Pharmaceuticals, Bedford, OH 44146 USA ,grid.261112.70000 0001 2173 3359Department of Chemistry and Chemical Biology, Northeastern University, MA 02115 Boston, USA
| | - David E. Budil
- grid.261112.70000 0001 2173 3359Department of Chemistry and Chemical Biology, Northeastern University, MA 02115 Boston, USA
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26
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Anwar S, Zaman M, Raja MAG, Mahmood A, Amjad MW. Rosuvastatin, Perindopril and Ezetimibe loaded instant release buccal films: Development and in vitro characterization. J Appl Biomed 2021; 18:115-125. [PMID: 34907764 DOI: 10.32725/jab.2020.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 10/04/2020] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Rosuvastatin Calcium and Ezetimibe are used to control cholesterol level while Perindopril Erbumine is used to treat hypertension. Hepatic metabolism reduces the therapeutic effect of these drugs. OBJECTIVE Instant release buccal films (IRBFs) could possibly be a solution to this issue. The objective of the study was to formulate IRBFs of Rosuvastatin Calcium, Perindopril Erbumine and Ezetimibe using solvent casting technique. METHODS Polymers used to prepare IRBFs included hydroxypropyl methylcellulose (HPMC E5), PEG 400 (as plasticizer) and Tween 80 (as surfactant). Solvent casting technique was used to fabricate the films, followed by their in-vitro analysis including high performance liquid chromatography (HPLC), X-ray diffraction (XRD), fourier transform infrared evaluation (FTIR), In-vitro dissolution, In-vitro disintegration, stability tests, scanning electron microscopy (SEM), folding fortitude, thickness evaluation, surface pH, tensile strength, weight variation and percentage moisture content. RESULTS Optical microscopy as well as SEM analysis displayed that the surfaces of IRBFs were smooth with uniform mixing of ingredients. IRBFs disintegrated within 15 seconds while on dissolution they exhibited instant drug release i.e. 100% release in 2 minutes. CONCLUSIONS The results show promising potential of IRBFs in drug delivery.
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Affiliation(s)
- Sobia Anwar
- The University of Lahore, Faculty of Pharmacy, Department of Pharmaceutics, Lahore, Pakistan
| | - Muhammad Zaman
- The University of Lahore, Faculty of Pharmacy, Department of Pharmaceutics, Lahore, Pakistan.,University of Central Punjab, Faculty of Pharmacy, Department of Pharmaceutics, Lahore, Pakistan
| | - Maria Abdul Ghafoor Raja
- Northern Border University, Faculty of Pharmacy, Department of Pharmaceutics, Rafha, Kingdom of Saudi Arabia
| | - Asif Mahmood
- The University of Lahore, Faculty of Pharmacy, Department of Pharmaceutics, Lahore, Pakistan
| | - Muhammad Wahab Amjad
- Northern Border University, Faculty of Pharmacy, Department of Pharmaceutics, Rafha, Kingdom of Saudi Arabia
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27
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Katz JS, Chou DK, Christian TR, Das TK, Patel M, Singh SN, Wen Y. Emerging Challenges and Innovations in Surfactant-mediated Stabilization of Biologic Formulations. J Pharm Sci 2021; 111:919-932. [PMID: 34883096 DOI: 10.1016/j.xphs.2021.12.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 12/03/2021] [Accepted: 12/03/2021] [Indexed: 02/08/2023]
Abstract
Biologics may be subjected to various destabilizing conditions during manufacturing, transportation, storage, and use. Therefore, biologics must be appropriately formulated to meet their desired quality target product profiles. In the formulations of protein-based biologics, one critical component is surfactant. Polysorbate 80 and Polysorbate 20 remain the most commonly used surfactants. Surfactants can stabilize proteins through different mechanisms and help the proteins withstand destabilization stresses. However, the challenges associated with surfactants, for instance, impurities, degradation, and potential triggering of adverse immune responses, have been encountered. Therefore, there are continued efforts to develop novel surfactants to overcome these challenges associated with traditional surfactants. Meanwhile, surfactants have also found their use in formulations of newer and novel modalities, namely, antibody-drug conjugates, bispecific antibodies, and adeno-associated viruses (AAV). This review provides an updated in-depth discussion of surfactants in the above-mentioned areas, namely mechanism of action of surfactants, a critical review of challenges with surfactants and current mitigation approaches, and emerging technologies to develop novel surfactants. In addition, gaps, current mitigations, and future directions have been presented to trigger further discussion and research to facilitate the use and development of novel surfactants.
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Affiliation(s)
- Joshua S Katz
- Pharma Solutions R&D, International Flavors and Fragrances, Wilmington, DE 19803, USA.
| | - Danny K Chou
- Compassion BioSolution, LLC, Lomita, CA 90717, USA
| | | | - Tapan K Das
- Bristol Myers Squibb, Biologics Development, New Brunswick, NJ 08903, USA
| | - Mayank Patel
- Dosage Form Design and Development, BioPharmaceuticals Development, R&D, AstraZeneca, Gaithersburg, USA
| | - Shubhadra N Singh
- GlaxoSmithKline R&D, Biopharmaceutical Product Sciences, Collegeville, PA 19426, USA
| | - Yi Wen
- Lilly Research Laboratory, Eli Lilly and Company, Indianapolis, IN 46285, USA
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28
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Lin S, Fu X, Luo M, Wang C, Zhong WH. Interface-tailored forces fluffing protein fiber membranes for high-performance filtration. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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29
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Duggirala NK, Sonje J, Yuan X, Shalaev E, Suryanarayanan R. Phase behavior of poloxamer 188 in frozen aqueous solutions - Influence of processing conditions and cosolutes. Int J Pharm 2021; 609:121145. [PMID: 34600056 DOI: 10.1016/j.ijpharm.2021.121145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 09/21/2021] [Accepted: 09/26/2021] [Indexed: 10/20/2022]
Abstract
The aim of the study is to investigate the thermal behavior of poloxamer 188 (P188) in binary (P188-water) and ternary (P188-trehalose-water) solutions during freezing and thawing. The thermal behavior of P188 in frozen (binary and ternary) systems was characterized by differential scanning calorimetry (DSC) and low-temperature X-ray powder diffractometry (XPRD) as a complementary technique. The influence of processing conditions (cooling rate, annealing) and a noncrystallizing co-solute (addition of trehalose) on the behavior of P188 was evaluated during freezing as well as thawing. In rapidly cooled (10 °C/min) aqueous binary solutions, P188 (10% w/v) was retained in the amorphous state. At slower cooling rates (0.5-5 °C/min), the extent of crystallization depended on the cooling rate. In ternary P188-trehalose-water systems (P188 4% w/v, trehalose 0-10% w/v), a concentration dependent inhibition of P188 crystallization was observed with increasing trehalose concentration. However, irrespective of trehalose concentration, annealing resulted in P188 crystallization. The presence of trehalose as well as the processing conditions (cooling rate and annealing) influenced the physical state of P188 at different stages of freezing and thawing. As the cooling rate decreased, the extent of P188 crystallization progressively increased. In presence of trehalose (≥4.0% w/v) crystallization of P188 (4.0% w/v) was inhibited and this effect could be reversed by annealing. Depending on the intended application, the physical form of P188 could be modulated, by annealing even in presence of a noncrystallizing solute.
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Affiliation(s)
- Naga Kiran Duggirala
- Department of Pharmaceutics, College of Pharmacy, 308 Harvard St. SE, University of Minnesota, Minneapolis, MN 55455, USA
| | - Jayesh Sonje
- Department of Pharmaceutics, College of Pharmacy, 308 Harvard St. SE, University of Minnesota, Minneapolis, MN 55455, USA
| | - Xiaoda Yuan
- Pharmaceutical Sciences, Research and Development, AbbVie Inc., 2525 Dupont Drive, Irvine, CA 92612, USA
| | - Evgenyi Shalaev
- Pharmaceutical Sciences, Research and Development, AbbVie Inc., 2525 Dupont Drive, Irvine, CA 92612, USA
| | - Raj Suryanarayanan
- Department of Pharmaceutics, College of Pharmacy, 308 Harvard St. SE, University of Minnesota, Minneapolis, MN 55455, USA.
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30
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Doshi N, Ritchie K, Shobha T, Giddings J, Gregoritza K, Taing R, Rumbelow S, Chu J, Tomlinson A, Kannan A, Saggu M, Cai SK, Nicoulin V, Liu W, Russell S, Luis L, Yadav S. Evaluating a Modified High Purity Polysorbate 20 Designed to Reduce the Risk of Free Fatty Acid Particle Formation. Pharm Res 2021; 38:1563-1583. [PMID: 34495486 DOI: 10.1007/s11095-021-03087-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 07/19/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE To evaluate a modified high purity polysorbate 20 (RO HP PS20)-with lower levels of stearate, palmitate and myristate esters than the non-modified HP PS20-as a surfactant in biopharmaceutical drug products (DP). RO HP PS20 was designed to provide functional equivalence as a surfactant while delaying the onset of free fatty acid (FFA) particle formation upon hydrolytic degradation relative to HP PS20. METHODS Analytical characterization of RO HP PS20 raw material included fatty acid ester (FAE) distribution, higher order ester (HOE) fraction, FFA levels and trace metals. Functional assessments included 1) vial and intravenous bag agitation; 2) oxidation via a placebo and methionine surrogate study; and 3) hydrolytic PS20 degradation studies to evaluate FFA particle formation with and without metal nucleation. RESULTS Interfacial protection and oxidation propensity were comparable between the two polysorbates. Upon hydrolytic degradation, FFA particle onset was delayed in RO HP PS20. The delay was more pronounced when HOEs of PS20 were preferentially degraded. Furthermore, the hydrolytic degradants of RO HP PS20 formed fewer particles in the presence of spiked aluminum. CONCLUSION This work highlights the criticality of having tighter control on long chain FAE levels of PS20 to reduce the occurrence of FFA particle formation upon hydrolytic degradation and lower the variability in its onset. By simultaneously meeting compendial PS20 specifications while narrowing the allowable range for each FAE and shifting its composition towards the shorter carbon chain species, RO HP PS20 provides a promising alternative to HP PS20 for biopharmaceutical DPs.
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Affiliation(s)
- Nidhi Doshi
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA.
| | - Kyle Ritchie
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Tamanna Shobha
- Pharmaceutical Technical Innovation, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Jamie Giddings
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Kathrin Gregoritza
- Pharma Technical Development Biologics, F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, 4054, Basel, Switzerland
| | - Rosalynn Taing
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Stephen Rumbelow
- Croda Inc, 777 Scudders Mill Road, Bldg. 2, Plainsboro, NJ, 08536, USA
| | - Jeff Chu
- Analytical Operations, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Anthony Tomlinson
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Aadithya Kannan
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Miguel Saggu
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Si Kai Cai
- Pharma Technical Development Biologics, F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, 4054, Basel, Switzerland
| | - Victor Nicoulin
- Pharma Technical Development Biologics, F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, 4054, Basel, Switzerland
| | - Wenqiang Liu
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Steve Russell
- Analytical Operations, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Lin Luis
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Sandeep Yadav
- Pharmaceutical Technical Innovation, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
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31
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Yang RS, Bush DR, DeGraan-Weber N, Barbacci D, Zhang LK, Letarte S, Richardson D. Advancing Structure Characterization of PS-80 by Charge-Reduced Mass Spectrometry and Software-Assisted Composition Analysis. J Pharm Sci 2021; 111:314-322. [PMID: 34487745 DOI: 10.1016/j.xphs.2021.08.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 08/31/2021] [Accepted: 08/31/2021] [Indexed: 11/28/2022]
Abstract
The commercially available Polysorbate 80 (PS-80) is a highly heterogeneous product. It is a complex and structurally diverse mixture consisting of polymeric species containing polyoxyethylenes (POEs), fatty acid esters, with/or without a carbohydrate core. The core is primarily sorbitan, with some isosorbide and sorbitol. Depending on the sources of fatty acids and the degrees of esterification, multiple combinations of fatty acid esters are commonly observed. A number of POE intermediates, such as polyoxyethylene glycols, POE-sorbitans, POE-isosorbides, and an array of fatty acid esters from these intermediates remain in the raw material as well. The complex composition of PS-80 is difficult to control and poses a significant characterization challenge for its use in the pharmaceutical industry. Here, we present a novel solution for PS-80 characterization using ultra high-performance liquid chromatography coupled with charge-reduction high resolution mass spectrometry. Post column co-infusion of triethylamine focused the signal into mainly singly charged molecular ions and reduced the extent of in-source fragmentation, resulting in a simpler ion map and enhanced measurement of PS-80 species. The data processing workflow is designed to programmatically identify PS-80 component classes and reduce the burden of manually analyzing complex MS data. The 2-dimensional graphical representation of the data helps visualize these features. Together, these innovative methodologies enabled us to analyze components in PS-80 with unprecedented detail and shall be a useful tool to study formulation and stability of pharmaceutical preparations. The power of this approach was demonstrated by comparing the composition of PS-80 obtained from different vendors.
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Affiliation(s)
- Rong-Sheng Yang
- Analytical Research & Development, Merck & Co., Inc, Kenilworth, New Jersey 07033, United States.
| | | | | | - Damon Barbacci
- Analytical Research & Development, Merck & Co., Inc, Kenilworth, New Jersey 07033, United States
| | - Li-Kang Zhang
- Analytical Research & Development, Merck & Co., Inc, Kenilworth, New Jersey 07033, United States
| | - Simon Letarte
- Analytical Research & Development, Merck & Co., Inc, Kenilworth, New Jersey 07033, United States
| | - Douglas Richardson
- Analytical Research & Development, Merck & Co., Inc, Kenilworth, New Jersey 07033, United States
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32
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Moore CM, Grandits M, Grünwald-Gruber C, Altmann F, Kotouckova M, Teh AYH, Ma JKC. Characterisation of a highly potent and near pan-neutralising anti-HIV monoclonal antibody expressed in tobacco plants. Retrovirology 2021; 18:17. [PMID: 34183026 PMCID: PMC8240387 DOI: 10.1186/s12977-021-00560-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 06/09/2021] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND HIV remains one of the most important health issues worldwide, with almost 40 million people living with HIV. Although patients develop antibodies against the virus, its high mutation rate allows evasion of immune responses. Some patients, however, produce antibodies that are able to bind to, and neutralise different strains of HIV. One such 'broadly neutralising' antibody is 'N6'. Identified in 2016, N6 can neutralise 98% of HIV-1 isolates with a median IC50 of 0.066 µg/mL. This neutralisation breadth makes N6 a very promising therapeutic candidate. RESULTS N6 was expressed in a glycoengineered line of N. benthamiana plants (pN6) and compared to the mammalian cell-expressed equivalent (mN6). Expression at 49 mg/kg (fresh leaf tissue) was achieved in plants, although extraction and purification are more challenging than for most plant-expressed antibodies. N-glycoanalysis demonstrated the absence of xylosylation and a reduction in α(1,3)-fucosylation that are typically found in plant glycoproteins. The N6 light chain contains a potential N-glycosylation site, which was modified and displayed more α(1,3)-fucose than the heavy chain. The binding kinetics of pN6 and mN6, measured by surface plasmon resonance, were similar for HIV gp120. pN6 had a tenfold higher affinity for FcγRIIIa, which was reflected in an antibody-dependent cellular cytotoxicity assay, where pN6 induced a more potent response from effector cells than that of mN6. pN6 demonstrated the same potency and breadth of neutralisation as mN6, against a panel of HIV strains. CONCLUSIONS The successful expression of N6 in tobacco supports the prospect of developing a low-cost, low-tech production platform for a monoclonal antibody cocktail to control HIV in low-to middle income countries.
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Affiliation(s)
- Catherine M. Moore
- Hotung Molecular Immunology Unit, Institute for Infection & Immunity, St George’s University of London, Cranmer Terrace, London, SW17 0RE UK
| | - Melanie Grandits
- Hotung Molecular Immunology Unit, Institute for Infection & Immunity, St George’s University of London, Cranmer Terrace, London, SW17 0RE UK
| | - Clemens Grünwald-Gruber
- Department of Chemistry, University of Natural Resources and Applied Life Sciences, Vienna, Austria
| | - Friedrich Altmann
- Department of Chemistry, University of Natural Resources and Applied Life Sciences, Vienna, Austria
| | - Maria Kotouckova
- Hotung Molecular Immunology Unit, Institute for Infection & Immunity, St George’s University of London, Cranmer Terrace, London, SW17 0RE UK
| | - Audrey Y.-H. Teh
- Hotung Molecular Immunology Unit, Institute for Infection & Immunity, St George’s University of London, Cranmer Terrace, London, SW17 0RE UK
| | - Julian K.-C. Ma
- Hotung Molecular Immunology Unit, Institute for Infection & Immunity, St George’s University of London, Cranmer Terrace, London, SW17 0RE UK
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Effect of electrolytes and surfactants on generation and longevity of carbon dioxide nanobubbles. Food Chem 2021; 363:130299. [PMID: 34147892 DOI: 10.1016/j.foodchem.2021.130299] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 06/02/2021] [Accepted: 06/02/2021] [Indexed: 11/21/2022]
Abstract
The objective of this research was to investigate the effect of individual additions of mono- and divalent electrolytes (NaCl and CaCl2), anionic (sodium dodecyl sulfate, SDS) and non-ionic surfactants (polysorbate 80, Tween 80) at varied concentrations on the generation and stability of bulk nanobubbles (NBs) from carbon dioxide (CO2) gas in aqueous system. Overall, NBs generated in the small-amount salt fluids exhibited significantly (p ≤ 0.05) lower size range (150-350 nm). Smaller diameter and higher zeta potential magnitudes (18-24 mV) of the NBs in SDS medium were also observed and related to the higher CO2 concentration (~1850 ppm) and lower surface tension (~64 mN/m) of the solution. However, the gas NBs were disappeared with the incorporation of Tween 80. The outcomes provide some more research-based details about the impact of potential nano-bubble stabilising agents on characteristics of NBs contributing to the green and sustainable NB-related applications in food sectors.
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Rospiccio M, Arsiccio A, Winter G, Pisano R. The Role of Cyclodextrins against Interface-Induced Denaturation in Pharmaceutical Formulations: A Molecular Dynamics Approach. Mol Pharm 2021; 18:2322-2333. [PMID: 33999634 PMCID: PMC8289300 DOI: 10.1021/acs.molpharmaceut.1c00135] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
![]()
Protein-based pharmaceutical
products are subject to a variety
of environmental stressors, during both production and shelf-life.
In order to preserve their structure, and, therefore, functionality,
it is necessary to use excipients as stabilizing agents. Among the
eligible stabilizers, cyclodextrins (CDs) have recently gained interest
in the scientific community thanks to their properties. Here, a computational
approach is proposed to clarify the role of β-cyclodextrin (βCD)
and 2-hydroxypropyl-β-cyclodextrin (HPβCD) against granulocyte
colony-stimulating (GCSF) factor denaturation at the air–water
and ice–water interfaces, and also in bulk water at 300 or
260 K. Both traditional molecular dynamics (MD) simulations and enhanced
sampling techniques (metadynamics, MetaD) are used to shed light on
the underlying molecular mechanisms. Bulk simulations revealed that
CDs were preferentially included within the surface hydration layer
of GCSF, and even included some peptide residues in their hydrophobic
cavity. HPβCD was able to stabilize the protein against surface-induced
denaturation in proximity of the air–water interface, while
βCD had a destabilizing effect. No remarkable conformational
changes of GCSF, or noticeable effect of the CDs, were instead observed
at the ice surface. GCSF seemed less stable at low temperature (260
K), which may be attributed to cold-denaturation effects. In this
case, CDs did not significantly improve conformational stability.
In general, the conformationally altered regions of GCSF seemed not
to depend on the presence of excipients that only modulated the extent
of destabilization with either a positive or a negative effect.
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Affiliation(s)
- Marcello Rospiccio
- Molecular Engineering Laboratory, Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino 10129, Italy
| | - Andrea Arsiccio
- Molecular Engineering Laboratory, Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino 10129, Italy
| | - Gerhard Winter
- Department of Pharmacy, Ludwig-Maximilians-University, 81377 Munich, Germany
| | - Roberto Pisano
- Molecular Engineering Laboratory, Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino 10129, Italy
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Syed UT, Dias AM, Crespo J, Brazinha C, de Sousa HC. Studies on the formation and stability of perfluorodecalin nanoemulsions by ultrasound emulsification using novel surfactant systems. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126315] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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36
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Hydrolytic polysorbate 20 degradation - Sensitive detection of free fatty acids in biopharmaceuticals via UPLC-QDa analytics with isolator column. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1174:122717. [PMID: 33975273 DOI: 10.1016/j.jchromb.2021.122717] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 03/15/2021] [Accepted: 04/11/2021] [Indexed: 11/21/2022]
Abstract
The enzymatic hydrolysis of polysorbates, e.g. induced by specific host cell proteins in biologics, is a known risk factor regarding the potential particle formation in the product over time. One of the root causes for this observation is an increase in free fatty acids (FA) within the formulation, which indicates the need for convenient monitoring of FA release. This study presents a novel UPLC-QDa based method to evaluate the content of the FAs esterified to polysorbate 20 (PS20) after hydrolysis. The presented method is label-free, i.e. independent of elaborate fluorophore-labeling and able to directly measure the ionized FAs. Furthermore, the method allows the determination of released FAs as percentage of ester bond hydrolysis and as absolute concentration expressed in ng/mL. Additionally, we describe for the first time in FA analytics the application of an isolator column, to remove trace levels of FAs present in the eluents to improve the sensitivity of the method. Lastly, the capabilities of the newly developed method are proven in case studies with three different monoclonal antibodies, which display characteristic FA release patterns in PS20-containing formulations. In summary, we developed a reliable, sensitive method for FA quantification in biologics, which could also be used as a predictive tool, considering FA solubility, regarding the formation of particles.
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Wu H, Cui Z, Huo Y, Sun Y, Zhang X, Guan J, Mao S. Influence of drug-carrier compatibility and preparation method on the properties of paclitaxel-loaded lipid liquid crystalline nanoparticles. J Pharm Sci 2021; 110:2800-2807. [PMID: 33785353 DOI: 10.1016/j.xphs.2021.03.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 03/01/2021] [Accepted: 03/18/2021] [Indexed: 12/23/2022]
Abstract
The main objective of this paper is to elucidate the influence of drug-carrier compatibility and preparation method on the properties of Paclitaxel (PTX)-loaded lipid liquid crystalline nanoparticles (LLCNs). Here, glyceryl monooleate (GMO), glycerol monolinoleate (GML), glyceryl monolinolenate (GMLO) were selected as the lipids, and Soluplus, Poloxamer 407 (P407), Tween 80 were selected as the stabilizer to prepare LLCNs. First of all, PTX-carrier compatibility was screened by molecular dynamic simulation using Flory-Huggins interaction parameter as the criteria. Thereafter, PTX-loaded LLCNs were prepared under different energy input conditions and were characterized. Influence of lipid type, stabilizer type, drug-lipid ratio and preparation method on properties of the LLCNs was explored. It was found that both lipid and stabilizer type had significant influence on drug encapsulation efficiency. Compared to the LLCNs prepared under high energy condition, PTX-loaded LLCN prepared under low energy input had higher drug encapsulation efficiency, smaller particle size (211.6 nm versus 346.8 nm) and a sustained release behavior. In conclusion, molecular dynamic simulation is an effective tool to select the most appropriate composition of LLCNs for a specific drug substance, and LLCNs prepared using low energy input methods was particularly applicable for industrial manufacture.
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Affiliation(s)
- Haiyang Wu
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Zhixiang Cui
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Yingnan Huo
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Yujiao Sun
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Xin Zhang
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Jian Guan
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Shirui Mao
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China.
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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.
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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.
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Marangoni circulation in evaporating droplets in the presence of soluble surfactants. J Colloid Interface Sci 2021; 584:622-633. [PMID: 33129516 DOI: 10.1016/j.jcis.2020.10.057] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/29/2020] [Accepted: 10/18/2020] [Indexed: 11/21/2022]
Abstract
HYPOTHESIS Soluble surfactants in evaporating sessile droplets can cause a circulatory Marangoni flow. However, it is not straightforward to predict for what cases this vortical flow arises. It is hypothesized that the occurrence of Marangoni circulation can be predicted from the values of a small number of dimensionless parameters. SIMULATIONS A numerical model for the drop evolution is developed using lubrication theory. Surfactant transport is implemented by means of convection-diffusion-adsorption equations. Results are compared to literature. FINDINGS It is shown that stronger evaporation, slower adsorption kinetics and lower solubility of the surfactants all tend to increasingly suppress Marangoni circulation. These results are found to be consistent with both experimental and numerical results from literature and can explain qualitative differences in flow behavior of surfactant-laden droplets. Furthermore, diffusion also tends to counteract Marangoni flow, where bulk diffusion has a more significant influence than surface diffusion. Also, the formation of micelles is found to slightly suppress Marangoni circulation. Experimental results from literature, however, show that in some cases circulatory behavior is enhanced by micelles, possibly even resulting in qualitative changes in the flow. Potential explanations for these differences are given and extensions to the model are suggested to improve its consistency with experiments.
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40
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Wang P, Gao J, Zhao Y, Zhang M, Zhou S. Biodegradability of di-(2-ethylhexyl) phthalate by a newly isolated bacterium Achromobacter sp. RX. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 755:142476. [PMID: 33035973 DOI: 10.1016/j.scitotenv.2020.142476] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 09/16/2020] [Accepted: 09/17/2020] [Indexed: 05/12/2023]
Abstract
Di-(2-ethylhexyl) phthalate (DEHP) is a chemical plasticizer that has been commonly used in the manufacture of polyvinyl chloride. DEHP is one of the environmental pollution sources. In this study, a gram-negative strain RX bacterium utilizing DEHP as sole carbon source was isolated from activated sludge through screening test. This strain RX was identified as Achromobacter sp. RX based on its morphology, physiological properties and 16S rRNA gene sequence analysis. The results showed that the optimal conditions for the DEHP degradation were 30.0 °C and pH 7.0. The DEHP degradation induced by strain RX demonstrated nitrogen source dependent, while followed a decreasing degradation rate under the source of: NO3- > NH4+ > NO2-. The biodegradability of Achromobacter sp. RX was enhanced with Masson pine seed powder as a co-metabolic substrate and Tween-80 as a solubilizing agent. Meanwhile, the degrading kinetics analysis was performed in the condition of DEHP as sole carbon source. The DEHP degradation curves fitted well with the first-order kinetic model at 50-300 mg/L of DEHP, with the half-life ranging from 13.0 to 16.4 h. During the biodegradation of DEHP, mono-(2-ehtylhexyl) phthalate (MEHP) was firstly generated through de-esterification, followed by the formation of phthalic acid and benzoic acid after further de-esterification of MEHP. Benzoic acid was finally mineralized to CO2 and H2O. The decontamination of DEHP-contaminated soil by Achromobacter sp. RX was investigated using a rotating-drum bioreactor. Evolution of total organic carbon from the contaminated soil showed that 86.4%-91.7% of DEHP was mineralized at pH 7.0 and 30.0 °C within 96 h. Reusability of Achromobacter sp. RX and its lifetime were observed over six consecutive cycles. Thus, Achromobacter sp. RX possessed high DEHP biodegradability, which provided a good potential in dealing with DEHP-contaminated soil.
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Affiliation(s)
- Ping Wang
- School of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; Key Laboratory of Forest Genetics and Biotechnology, Ministry of Education, Nanjing Forestry University, Nanjing 210037, China.
| | - Jingjing Gao
- School of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; Key Laboratory of Forest Genetics and Biotechnology, Ministry of Education, Nanjing Forestry University, Nanjing 210037, China
| | - Yu Zhao
- School of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; Key Laboratory of Forest Genetics and Biotechnology, Ministry of Education, Nanjing Forestry University, Nanjing 210037, China
| | - Min Zhang
- School of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; Key Laboratory of Forest Genetics and Biotechnology, Ministry of Education, Nanjing Forestry University, Nanjing 210037, China
| | - Sijie Zhou
- School of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; Key Laboratory of Forest Genetics and Biotechnology, Ministry of Education, Nanjing Forestry University, Nanjing 210037, China
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Zhang C, Liu Y, Sun Y, Dong X. Complicated effects of a zwitterionic polymer containing dimethyl chains on the structures, activities and stabilities of different enzymes. Biochem Eng J 2021. [DOI: 10.1016/j.bej.2020.107813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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42
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Ji W, Parameswarappa Jayalakshmamma M, Abou Khalil C, Zhao L, Boufadel M. Removal of hydrocarbon from soils possessing macro-heterogeneities using electrokinetics and surfactants. CHEMICAL ENGINEERING JOURNAL ADVANCES 2020. [DOI: 10.1016/j.ceja.2020.100030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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43
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Vandemoortele A, Babat P, Yakubu M, De Meulenaer B. Behavior of Malondialdehyde and Its Whey Protein Adducts during In Vitro Simulated Gastrointestinal Digestion. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:11846-11854. [PMID: 32985186 DOI: 10.1021/acs.jafc.0c03947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The behavior of malondialdehyde and its whey protein adducts in aqueous buffer and fully hydrogenated coconut oil-in-water emulsions stabilized by Tween 20 or by whey protein was studied during in vitro gastrointestinal digestion. The malondialdehyde levels during in vitro digestion depended upon the kind of sample, the location of the whey protein, and the extent of adduct formation before digestion. During gastric digestion, degradation of acid-labile malondialdehyde-whey protein adducts as well as formation of new malondialdehyde adducts with hydrolyzed whey protein was suggested to occur, in addition to the earlier described equilibria with respect to the aldol self-condensation of malondialdehyde and its hydrolytic cleavage. After in vitro digestion, both malondialdehyde and its adducts were present in the digest with malondialdehyde recoveries varying between 55 and 86% depending upon the model system studied. To conclude, the reactivity of malondialdehyde toward (hydrolyzed) proteins does not stop at the point of ingestion.
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Affiliation(s)
- Angelique Vandemoortele
- NutriFOODchem Unit, Department of Food Technology, Safety and Health (Partner in Food2Know), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Pinar Babat
- NutriFOODchem Unit, Department of Food Technology, Safety and Health (Partner in Food2Know), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Mariam Yakubu
- NutriFOODchem Unit, Department of Food Technology, Safety and Health (Partner in Food2Know), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Bruno De Meulenaer
- NutriFOODchem Unit, Department of Food Technology, Safety and Health (Partner in Food2Know), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
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Vandemoortele A, Simon M, Claes A, De Meulenaer B. Behavior of Hexanal, ( E)-Hex-2-enal, 4-Hydroxyhex-2-enal, and 4-Hydroxynon-2-enal in Oil-in-Water Emulsions. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:11568-11577. [PMID: 32924473 DOI: 10.1021/acs.jafc.0c04060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The reactivity of hexanal, (E)-hex-2-enal, 4-hydroxyhex-2-enal, and 4-hydroxynon-2-enal in oil-in-water emulsions and their respective compartments, in the presence and absence of protein, was studied at 40 °C. In aqueous buffer, hexanal oxidized to hexanoic acid. In the presence of protein, an additional loss occurred, presumably as a result of adduct formation with cysteine. Similarly, (E)-hex-2-enal oxidized to (E)-hex-2-enoic acid in aqueous buffer, and the results suggested that this acid is also able to form adducts with proteins. 4-Hydroxyalk-2-enals showed the highest reactivity in all models evaluated. Especially in protein-containing systems, they were not detectable anymore or their initial concentration was seriously reduced. 4-Hydroxynon-2-enal was the most reactive of the substances studied. The reactivity of the aldehydes was influenced by their partition within emulsions, which was remarkably not correlated with their hydrophobicity. These findings need to be considered when using these aldehydes as lipid oxidation markers in foods.
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Affiliation(s)
- Angelique Vandemoortele
- NutriFOODchem Unit, Department of Food Technology, Safety and Health (Partner in Food2Know), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Marie Simon
- NutriFOODchem Unit, Department of Food Technology, Safety and Health (Partner in Food2Know), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Arnaud Claes
- NutriFOODchem Unit, Department of Food Technology, Safety and Health (Partner in Food2Know), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Bruno De Meulenaer
- NutriFOODchem Unit, Department of Food Technology, Safety and Health (Partner in Food2Know), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
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Vaclaw C, Merritt K, Pringle V, Whitaker N, Gokhale M, Carvalho T, Pan D, Liu Z, Bindra D, Khossravi M, Bolgar M, Volkin DB, Ogunyankin MO, Dhar P. Impact of Polysorbate 80 Grade on the Interfacial Properties and Interfacial Stress Induced Subvisible Particle Formation in Monoclonal Antibodies. J Pharm Sci 2020; 110:746-759. [PMID: 32987092 DOI: 10.1016/j.xphs.2020.09.035] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/19/2020] [Accepted: 09/21/2020] [Indexed: 12/13/2022]
Abstract
Polysorbate 80 is a nonionic surfactant that is added to therapeutic protein formulations to mitigate protein particle formation when subjected to various mechanical stresses. Variations in the PS80 grade has recently sparked questions surrounding the effect of oleic acid content (OAC) on surfactant's ability to mitigate interface-induced protein particle formation when stressed. In this work, a Langmuir trough was used to apply interfacial dilatational stress to two IgG molecules (mAb1 and mAb2) in formulations containing Chinese pharmacopeia (CP) and multicompendial (MC) grades of PS80. The interfacial properties of these mAb formulations, with and without interfacial dilatational stresses, were correlated with subvisible particle count and particle size/morphology distributions as measured by Micro-flow imaging (MFI). Overall, differences in interfacial properties correlated well with protein particle formation for both molecules in the two PS80 formulations. Further, the impact of grade of PS80 on the interfacial properties and interfacial stress-induced protein particle formation depends on the adsorption kinetics of the IgG molecules as well as the concentration of the surfactant used. This study demonstrates that measuring the interfacial properties of mAb formulations can be a useful tool to predict interfacial stress induced protein particle formation in the presence of different excipients of varying quality.
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Affiliation(s)
- Coleman Vaclaw
- Bioengineering Program, School of Engineering, The University of Kansas, 1530 W 15th Street, Lawrence, KS 66045, USA
| | - Kimberly Merritt
- Bioengineering Program, School of Engineering, The University of Kansas, 1530 W 15th Street, Lawrence, KS 66045, USA
| | - Valerie Pringle
- Department of Chemical and Petroleum Engineering, The University of Kansas, 1530 W 15th Street, Lawrence, KS 66045, USA
| | - Neal Whitaker
- Department of Pharmaceutical Chemistry, Vaccine Analytics and Formulation Center, University of Kansas, 2030 Becker Drive, Lawrence, KS 66047, USA
| | - Madhushree Gokhale
- Department of Drug Product Development, Bristol-Myers Squibb, Inc, One Squibb Drive, New Brunswick, NJ 08901, USA
| | - Thiago Carvalho
- Department of Drug Product Development, Bristol-Myers Squibb, Inc, One Squibb Drive, New Brunswick, NJ 08901, USA
| | - Duohai Pan
- Department of Drug Product Development, Bristol-Myers Squibb, Inc, One Squibb Drive, New Brunswick, NJ 08901, USA
| | - Zhihua Liu
- Department of Drug Product Development, Bristol-Myers Squibb, Inc, One Squibb Drive, New Brunswick, NJ 08901, USA
| | - Dilbir Bindra
- Department of Drug Product Development, Bristol-Myers Squibb, Inc, One Squibb Drive, New Brunswick, NJ 08901, USA
| | - Mehrnaz Khossravi
- Department of Drug Product Development, Bristol-Myers Squibb, Inc, One Squibb Drive, New Brunswick, NJ 08901, USA
| | - Mark Bolgar
- Department of Drug Product Development, Bristol-Myers Squibb, Inc, One Squibb Drive, New Brunswick, NJ 08901, USA
| | - David B Volkin
- Department of Pharmaceutical Chemistry, Vaccine Analytics and Formulation Center, University of Kansas, 2030 Becker Drive, Lawrence, KS 66047, USA
| | - Maria O Ogunyankin
- Department of Drug Product Development, Bristol-Myers Squibb, Inc, One Squibb Drive, New Brunswick, NJ 08901, USA.
| | - Prajnaparamita Dhar
- Bioengineering Program, School of Engineering, The University of Kansas, 1530 W 15th Street, Lawrence, KS 66045, USA; Department of Chemical and Petroleum Engineering, The University of Kansas, 1530 W 15th Street, Lawrence, KS 66045, USA.
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In vivo assessment of the antischistosomal activity of curcumin loaded nanoparticles versus praziquantel in the treatment of Schistosoma mansoni. Sci Rep 2020; 10:15742. [PMID: 32978497 PMCID: PMC7519097 DOI: 10.1038/s41598-020-72901-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 08/31/2020] [Indexed: 01/17/2023] Open
Abstract
Schistosomiasis is a serious parasitic infection affecting millions worldwide. This study aimed to explore the anti-schistosomal activity of curcumin and curcumin loaded gold-nanoparticles (Cur-GNPs) with or without praziquantel (PZQ). We used six groups of the C57BL/6 mice in which five groups were infected with Schistosoma Mansoni (S. mansoni) cercariae and exhibited, separately, to different treatment regimens of curcumin, curcumin loaded nanoparticle, and PZQ, in addition to one untreated group which acts as a control. Mice were sacrificed at the 8th week where both worms and eggs were counted in the hepatic and porto-mesenteric vessels in the liver and intestine, respectively, in addition to a histopathological examination of the liver granuloma. Curcumin caused a significant reduction in the worms and egg count (45.45%) at the 3rd week. A significant schistosomicidal effect of PZQ was found in all groups. Cur-GNPs combined with PZQ 97.4% reduction of worm burden in the 3rd week and the highest reduction in the intestinal and hepatic egg content, as well, besides 70.1% reduction of the granuloma size. The results suggested the curcumin in combination with PZQ as a strong schistosomicidal regimen against S. mansoni as it alters the hematological, biochemical, and immunological changes induced.
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Mudie DM, Stewart AM, Biswas N, Brodeur TJ, Shepard KB, Smith A, Morgen MM, Baumann JM, Vodak DT. Novel High-Drug-Loaded Amorphous Dispersion Tablets of Posaconazole; In Vivo and In Vitro Assessment. Mol Pharm 2020; 17:4463-4472. [PMID: 32835489 DOI: 10.1021/acs.molpharmaceut.0c00471] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Amorphous solid dispersions (ASDs) can increase the bioavailability of drugs with poor aqueous solubility. However, concentration-sustaining dispersion polymers (CSPs) incorporated in ASDs can result in low drug loading and, therefore, a large dosage-form size or multiple units to meet dose requirements, potentially decreasing patient compliance. To address this challenge, a high-loaded dosage-form (HLDF) architecture for ASDs was developed, in which a drug is first spray-dried with a high glass-transition temperature (Tg) dispersion polymer to facilitate high drug loading while maintaining physical stability. The ASD is then granulated with a CSP designed to extend supersaturation in solution. The HLDF differs from traditional ASD architectures in which the dispersion polymer inside the ASD acts as the CSP. By strategically combining two different polymers, one "inside" and one "outside" the ASD, solubilization performance, physical stability, and overall drug loading are maximized. This study demonstrates in vivo performance of the HLDF architecture using posaconazole as a model drug. Two sizes of HLDF tablets were tested in beagle dogs, along with traditional ASD architecture (benchmark) tablets, ASD tablets without a CSP, and a commercial crystalline oral suspension (Noxafil OS). HLDF tablets performed equivalently to the benchmark tablets, the smaller HLDF tablet being 40% smaller (by mass) than the benchmark tablet. The HLDF tablets doubled the blood plasma AUC relative to Noxafil OS. In line with the in vivo outcome, in vitro results in a multicompartment dissolution apparatus demonstrated similar area under the curve (AUC) values in the intestinal compartment for ASD tablets. However, the in vitro data underpredicted the relative in vivo AUC of Noxafil OS compared to the ASD tablets. This study demonstrated that the HLDF approach can increase drug loadings while achieving good performance for ASD drug products.
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Affiliation(s)
- Deanna M Mudie
- Lonza Pharma and Biotech, Bend, Oregon 97703, United States
| | | | - Nishant Biswas
- Lonza Pharma and Biotech, Bend, Oregon 97703, United States
| | | | | | - Adam Smith
- Lonza Pharma and Biotech, Bend, Oregon 97703, United States
| | | | - John M Baumann
- Lonza Pharma and Biotech, Bend, Oregon 97703, United States
| | - David T Vodak
- Lonza Pharma and Biotech, Bend, Oregon 97703, United States
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Grapentin C, Müller C, Kishore RS, Adler M, ElBialy I, Friess W, Huwyler J, Khan TA. Protein-Polydimethylsiloxane Particles in Liquid Vial Monoclonal Antibody Formulations Containing Poloxamer 188. J Pharm Sci 2020; 109:2393-2404. [DOI: 10.1016/j.xphs.2020.03.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 02/24/2020] [Accepted: 03/12/2020] [Indexed: 12/17/2022]
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Aggregation and Particle Formation During Pumping of an Antibody Formulation Are Controlled by Electrostatic Interactions Between Pump Surfaces and Protein Molecules. J Pharm Sci 2020; 109:1473-1482. [DOI: 10.1016/j.xphs.2020.01.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/15/2020] [Accepted: 01/23/2020] [Indexed: 11/24/2022]
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Chen D, Luo W, Hoffman J, Huang L, Sandefur S, Hall T, Murphy M, O'Donnell S. Insights into virus inactivation by polysorbate 80 in the absence of solvent. Biotechnol Prog 2019; 36:e2953. [PMID: 31846227 DOI: 10.1002/btpr.2953] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 11/27/2019] [Accepted: 12/12/2019] [Indexed: 12/15/2022]
Abstract
Triton X-100 has long been used either alone or in combination with solvent to inactivate enveloped viruses in biopharmaceutical manufacturing. However, European Chemicals Agency (ECHA) officially placed Triton X-100 on the Annex XIV authorization list in 2017 because 4-(1,1,3,3-tetramethylbutyl) phenol, a degradation product of Triton X-100, is of harmful endocrine disrupting activities. As a result, any use of Triton X-100 in the European Economic Area would require an ECHA issued authorization after the sunset date of January 4, 2021. In search of possible replacements for Triton X-100, we discovered that polysorbate 80 (PS80) in absence of any solvents was able to effectively inactive enveloped viruses such as xenotropic murine leukemia virus and pseudorabies virus with comparable efficacy as measured by log reduction factors. Interestingly, PS80 did not show any virucidal activities in phosphate buffered saline (PBS) while achieving robust virus inactivation in cell-free Chinese hamster ovary (CHO) bioreactor harvests. This intriguing observation led us to speculate that virus inactivation by PS80 involved components in the cell-free CHO bioreactor harvests that were absent in PBS. Specifically, we hypothesized that esterase and/or lipases in the cell-free bioreactor harvests hydrolyzed PS80 to yield oleic acid, a known potent virucidal agent, which in turn inactivated viruses. This theory was confirmed using purified recombinant lysosomal phospholipase A2 isomer (rLPLA2) in PBS. Subsequent characterization work has indicated that virus inactivation by PS80 is effective and robust within temperature and concentration ranges comparable to those of Triton X-100. Similar to Triton X-100, virus inactivation by PS80 is dually dependent on treatment time and temperature. Unlike Triton X-100, PS80 inactivation does not correlate with concentrations in a simple manner. Additionally, we have demonstrated that PS20 exhibits similar virus inactivation activities as PS80. Based on the findings described in the current work, we believe that PS80 is potentially a viable replacement for Triton X-100 and can be used in manufacturing processes for wide spectrum of biopharmaceuticals to achieve desirable virus clearance. Finally, the advantages and disadvantages of using PS80 for virus inactivation are discussed in the contexts of GMP manufacturing.
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Affiliation(s)
- Dayue Chen
- Bioproduct Research and Development, Lilly Research Laboratories, Eli Lilly and Company, Lilly Corporate Center, Indianapolis, Indiana
| | - Wen Luo
- Bioproduct Research and Development, Lilly Research Laboratories, Eli Lilly and Company, Lilly Corporate Center, Indianapolis, Indiana
| | - Jacob Hoffman
- Bioproduct Research and Development, Lilly Research Laboratories, Eli Lilly and Company, Lilly Corporate Center, Indianapolis, Indiana
| | - Lihua Huang
- Bioproduct Research and Development, Lilly Research Laboratories, Eli Lilly and Company, Lilly Corporate Center, Indianapolis, Indiana
| | - Stephanie Sandefur
- Bioproduct Research and Development, Lilly Research Laboratories, Eli Lilly and Company, Lilly Corporate Center, Indianapolis, Indiana
| | - Troii Hall
- Bioproduct Research and Development, Lilly Research Laboratories, Eli Lilly and Company, Lilly Corporate Center, Indianapolis, Indiana
| | - Marie Murphy
- Bioproduct Research and Development, Lilly Research Laboratories, Eli Lilly and Company, Lilly Corporate Center, Indianapolis, Indiana
| | - Sean O'Donnell
- Bioproduct Research and Development, Lilly Research Laboratories, Eli Lilly and Company, Lilly Corporate Center, Indianapolis, Indiana
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