1
|
Mejía-Manzano LA, Campos-García VR, Perdomo-Abúndez FC, Medina-Rivero E, González-Valdez J. Mono-PEGylated lysozyme purification with increased productivity and isomer differentiation through heparin monolith chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1204:123323. [PMID: 35700648 DOI: 10.1016/j.jchromb.2022.123323] [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: 02/01/2022] [Revised: 05/25/2022] [Accepted: 06/03/2022] [Indexed: 11/18/2022]
Abstract
PEGylated protein purification with the required quality attributes has represented a bioengineering challenge and Affinity Monolith Chromatography (AMC) has never been exploited for this goal. This work reports the generation of a heparin-modified affinity monolith disk by reductive alkylation with raised ligand density for its use as chromatographic support in the separation of lysozyme PEGylation reactions (LPRs) with three different PEG sizes (1, 20 and 40 kDa). For immobilized heparin determination a modified toluidine colorimetric assay adapted to microplate format was proposed. The heparin modified-disk was able to differentiate positional isomers of 20 kDa mono-PEGylated lysozyme at neutral pH using a salt linear gradient. Identity of PEG-conjugates was verified by SDS-PAGE and positional isomers were partially characterized by peptide mapping mass spectrometry. 20 kDa mono-PEGylated lysozyme conjugate purity (99.69 ± 0.05%) was comparable with traditional chromatographic methods while productivity (0.0964 ± 0.0001 mg/mL*min) was increased up to 6.1 times compared to that obtained in heparin packed-bed affinity chromatography procedures. The proposed AMC method represents a reliable, efficient, easy-handling, fast and single-step operation for the analysis or preparative isolation of PEGylated proteins containing a heparin binding domain.
Collapse
Affiliation(s)
- Luis Alberto Mejía-Manzano
- Tecnologico de Monterrey, School of Engineering and Science, Av. Eugenio Garza Sada 2501 Sur, Monterrey, NL, Mexico
| | - Víctor R Campos-García
- Tecnologico de Monterrey, School of Engineering and Science, Av. Eugenio Garza Sada 2501 Sur, Monterrey, NL, Mexico
| | - Francisco C Perdomo-Abúndez
- Unidad de Desarrollo e Investigación en Bioprocesos (UDIBI), Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - Emilio Medina-Rivero
- Unidad de Desarrollo e Investigación en Bioprocesos (UDIBI), Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - José González-Valdez
- Tecnologico de Monterrey, School of Engineering and Science, Av. Eugenio Garza Sada 2501 Sur, Monterrey, NL, Mexico.
| |
Collapse
|
2
|
Campos-García VR, Benavides J, González-Valdez J. Reactive aqueous two-phase systems for the production and purification of PEGylated proteins. ELECTRON J BIOTECHN 2021. [DOI: 10.1016/j.ejbt.2021.09.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
|
3
|
Sánchez-Trasviña C, Flores-Gatica M, Enriquez-Ochoa D, Rito-Palomares M, Mayolo-Deloisa K. Purification of Modified Therapeutic Proteins Available on the Market: An Analysis of Chromatography-Based Strategies. Front Bioeng Biotechnol 2021; 9:717326. [PMID: 34490225 PMCID: PMC8417561 DOI: 10.3389/fbioe.2021.717326] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Accepted: 08/09/2021] [Indexed: 02/02/2023] Open
Abstract
Proteins, which have inherent biorecognition properties, have long been used as therapeutic agents for the treatment of a wide variety of clinical indications. Protein modification through covalent attachment to different moieties improves the therapeutic's pharmacokinetic properties, affinity, stability, confers protection against proteolytic degradation, and increases circulation half-life. Nowadays, several modified therapeutic proteins, including PEGylated, Fc-fused, lipidated, albumin-fused, and glycosylated proteins have obtained regulatory approval for commercialization. During its manufacturing, the purification steps of the therapeutic agent are decisive to ensure the quality, effectiveness, potency, and safety of the final product. Due to the robustness, selectivity, and high resolution of chromatographic methods, these are recognized as the gold standard in the downstream processing of therapeutic proteins. Moreover, depending on the modification strategy, the protein will suffer different physicochemical changes, which must be considered to define a purification approach. This review aims to deeply analyze the purification methods employed for modified therapeutic proteins that are currently available on the market, to understand why the selected strategies were successful. Emphasis is placed on chromatographic methods since they govern the purification processes within the pharmaceutical industry. Furthermore, to discuss how the modification type strongly influences the purification strategy, the purification processes of three different modified versions of coagulation factor IX are contrasted.
Collapse
Affiliation(s)
- Calef Sánchez-Trasviña
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Centro de Biotecnología-FEMSA, Monterrey, Mexico
| | - Miguel Flores-Gatica
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Centro de Biotecnología-FEMSA, Monterrey, Mexico
| | - Daniela Enriquez-Ochoa
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Centro de Biotecnología-FEMSA, Monterrey, Mexico
| | - Marco Rito-Palomares
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey, Mexico
| | - Karla Mayolo-Deloisa
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Centro de Biotecnología-FEMSA, Monterrey, Mexico
| |
Collapse
|
4
|
Development and Characterization of PEGylated Chromatographic Monoliths as a Novel Platform for the Separation of PEGylated RNase a Isomers. ADVANCES IN POLYMER TECHNOLOGY 2019. [DOI: 10.1155/2019/5067028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
PEGylated or polyethylene glycol-modified proteins have been used as therapeutic agents in different diseases. However, the major drawback in their procurement is the purification process to separate unreacted proteins and the PEGylated species. Several efforts have been done to separate PEGylation reactions by chromatography using different stationary phases and modified supports. In this context, this study presents the use of chromatographic monoliths modified with polyethylene glycol (PEG) to separate PEGylated Ribonuclease A (RNase A). To do this, Convective Interaction Media (CIM) Ethylenediamine (EDA) monolithic disks were PEGylated using three PEG molecular weights (1, 10, and 20 kDa). The PEGylated monoliths were used to separate PEGylated RNase A modified, as well, with three PEG molecular weights (5, 20, and 40 kDa) by hydrophobic interaction chromatography. Performance results showed that Bovine Serum Albumin (BSA) can bind to PEGylated monoliths and the amount of bound BSA increases when ammonium sulfate concentration and flow rate increase. Furthermore, when PEGylated RNase A was loaded into the PEGylated monoliths, PEG-PEG interactions predominated in the separation of the different PEGylated species (i.e., mono and di-PEGylated). It was also observed that the molecular weight of grafted PEG chains to the monolith impacts strongly in the operation resolution. Interestingly, it was possible to separate, for the first time, isomers of 40 kDa PEGylated RNase A by hydrophobic interaction chromatography. This technology, based on PEGylated monoliths, represents a new methodology to efficiently separate proteins and PEGylated proteins. Besides, it could be used to separate other PEGylated molecules of biopharmaceutical or biotechnological interest.
Collapse
|
5
|
Thermo-separating polymer-based aqueous two-phase systems for the recovery of PEGylated lysozyme species. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1105:120-128. [PMID: 30583232 DOI: 10.1016/j.jchromb.2018.12.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 12/04/2018] [Accepted: 12/15/2018] [Indexed: 01/09/2023]
Abstract
Fractionation of native, mono and di-PEGylated lysozyme was performed in 36 different polymer-polymer aqueous two-phase systems using UCON as a phase-forming component. After a discrete partition analysis, dextran 75 kDa-UCON, volume ratio 3, tie-line length 35% w/w; ficoll 70 kDa-UCON, volume ratio 1, tie-line length 45% w/w and a PEG 8 kDa-UCON volume ratio 3, tie-line length 65% w/w systems were selected for optimization via salt addition and to observe the behavior of the lysozyme species in mixtures. The dextran-UCON and the PEG-UCON systems with 75 mM NaCl showed effectiveness in separating 75% and 87% of mono-PEGylated lysozyme from the rest of the lysozyme species in the top and bottom phases, respectively. These results are an advancement in incorporating these extractions in different processes since the use of UCON simplifies the removal of the polymers, providing the opportunity of recycling it to the operation.
Collapse
|
6
|
Chemical modification of protein a chromatography ligands with polyethylene glycol. II: Effects on resin robustness and process selectivity. J Chromatogr A 2018; 1546:89-96. [DOI: 10.1016/j.chroma.2018.02.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 01/13/2018] [Accepted: 02/13/2018] [Indexed: 11/18/2022]
|
7
|
Weinberg J, Zhang S, Crews G, Carta G, Przybycien T. Chemical modification of protein A chromatography ligands with polyethylene glycol. I: Effects on IgG adsorption equilibrium, kinetics, and transport. J Chromatogr A 2018; 1546:77-88. [PMID: 29551236 DOI: 10.1016/j.chroma.2018.03.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 02/27/2018] [Accepted: 03/07/2018] [Indexed: 10/17/2022]
Abstract
Chemical modification of Protein A (ProA) chromatography ligands with polyethylene glycol (PEGylation) has been proposed as a strategy to increase the process selectivity and resin robustness by providing the ligand with a steric repulsion barrier against non-specific binding. This article comprises a comprehensive study of IgG adsorption and transport in Repligen CaptivA PriMAB resin with PEGylated ProA ligands that are modified using 5.2 and 21.5 kDa PEG chains. We studied the impact of the molecular weight of the PEG as well as the extent of PEGylation for the 5.2 kDa PEG modification. In all cases, PEGylation of ProA ligands decreases the resin average pore size, particle porosity, and static binding capacity for IgG proportional to the volume of conjugated PEG in the resin. Resin batch uptake experiments conducted in bulk via a stirred-tank system and with individual resin particles under confocal laser scanning microscopy suggests that PEGylation introduces heterogeneity into IgG binding kinetics: a fraction of the IgG binding sites are transformed from typical fast association kinetic behavior to slow kinetic behavior. pH gradient elution experiments of an IgG molecule on the modified resins show an increase in IgG elution pH for all modified resins, implying a decrease in IgG-ProA binding affinity on modification. Despite losses in static binding capacity for all resins with PEGylated ligands, the loss of dynamic binding capacity at 10% breakthrough (DBC10%) ranged more broadly from almost 0-47% depending on the PEG molecular weight and the extent of PEGylation. Minimal losses in DBC10% were observed with a low extent of PEGylation with a smaller molecular weight PEG, while higher losses were observed at higher extents of PEGylation and with higher molecular weight PEG due to decreased static binding capacity and increased mass transfer resistance. This work provides insight into the practical implications for resin performance if PEGylation is considered as a strategy for selectivity enhancement in affinity chromatography with macromolecular ligands.
Collapse
Affiliation(s)
- Justin Weinberg
- Department of Chemical Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213, USA
| | - Shaojie Zhang
- Department of Chemical Engineering, University of Virginia, 102 Engineers' Way, Charlottesville, VA 22904, USA
| | - Gillian Crews
- Department of Chemical Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213, USA
| | - Giorgio Carta
- Department of Chemical Engineering, University of Virginia, 102 Engineers' Way, Charlottesville, VA 22904, USA
| | - Todd Przybycien
- Department of Chemical Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213, USA.
| |
Collapse
|
8
|
Mata-Gómez MA, Gallo-Villanueva RC, González-Valdez J, Martínez-Chapa SO, Rito-Palomares M. Dielectrophoretic behavior of PEGylated RNase A inside a microchannel with diamond-shaped insulating posts. Electrophoresis 2015; 37:519-28. [PMID: 26530024 DOI: 10.1002/elps.201500311] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 10/20/2015] [Accepted: 10/21/2015] [Indexed: 11/06/2022]
Abstract
Ribonuclease A (RNase A) has proven potential as a therapeutic agent, especially in its PEGylated form. Grafting of PEG molecules to this protein yields mono-PEGylated (mono-PEG) and di-PEGylated (di-PEG) RNase A conjugates, and the unreacted protein. Mono-PEG RNase A is of great interest. The use of electrokinetic forces in microdevices represents a novel alternative to chromatographic methods to separate this specie. This work describes the dielectrophoretic behavior of the main protein products of the RNase A PEGylation inside a microchannel with insulators under direct current electric fields. This approach represents the first step in route to design micro-bioprocesses to separate PEGylated RNase A from unreacted native protein. The three proteins exhibited different dielectrophoretic behaviors. All of them experienced a marked streaming pattern at 3000 V consistent with positive dielectrophoresis. Native protein was not captured at any of the conditions tested, while mono-PEG RNase A and di-PEG RNase A were captured presumably due to positive dielectrophoresis at 4000 and 2500 V, respectively. Concentration of mono-PEG RNase A with a maximal enrichment efficiency of ≈9.6 times the feed concentration was achieved in few seconds. These findings open the possibility of designing novel devices for rapid separation, concentration, and recovery of PEGylated RNase A in a one-step operation.
Collapse
Affiliation(s)
- Marco A Mata-Gómez
- Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey, Mexico
| | | | | | | | | |
Collapse
|
9
|
Mayolo-Deloisa K, González-González M, Simental-Martínez J, Rito-Palomares M. Aldehyde PEGylation of laccase fromTrametes versicolorin route to increase its stability: effect on enzymatic activity. J Mol Recognit 2015; 28:173-9. [DOI: 10.1002/jmr.2405] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 05/06/2014] [Accepted: 06/07/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Karla Mayolo-Deloisa
- Centro de Biotecnología-FEMSA; Tecnológico de Monterrey; Campus Monterrey, Ave. Eugenio Garza Sada 2501 Sur Monterrey NL 64849 México
| | - Mirna González-González
- Centro de Biotecnología-FEMSA; Tecnológico de Monterrey; Campus Monterrey, Ave. Eugenio Garza Sada 2501 Sur Monterrey NL 64849 México
| | - Jesús Simental-Martínez
- Centro de Biotecnología-FEMSA; Tecnológico de Monterrey; Campus Monterrey, Ave. Eugenio Garza Sada 2501 Sur Monterrey NL 64849 México
| | - Marco Rito-Palomares
- Centro de Biotecnología-FEMSA; Tecnológico de Monterrey; Campus Monterrey, Ave. Eugenio Garza Sada 2501 Sur Monterrey NL 64849 México
| |
Collapse
|
10
|
|
11
|
González-Valdez J, Yoshikawa A, Weinberg J, Benavides J, Rito-Palomares M, Przybycien TM. Toward improving selectivity in affinity chromatography with PEGylated affinity ligands: The performance of PEGylated protein A. Biotechnol Prog 2014; 30:1364-79. [DOI: 10.1002/btpr.1994] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Indexed: 01/14/2023]
Affiliation(s)
- José González-Valdez
- Centro de Biotecnología FEMSA, Tecnológico de Monterrey; Monterrey NL 64849 México
| | - Alex Yoshikawa
- Dept. of Chemical Engineering; Carnegie Mellon University; Pittsburgh PA 15213
| | - Justin Weinberg
- Dept. of Chemical Engineering; Carnegie Mellon University; Pittsburgh PA 15213
| | - Jorge Benavides
- Centro de Biotecnología FEMSA, Tecnológico de Monterrey; Monterrey NL 64849 México
| | - Marco Rito-Palomares
- Centro de Biotecnología FEMSA, Tecnológico de Monterrey; Monterrey NL 64849 México
| | - Todd M. Przybycien
- Depts. of Biomedical Engineering and Chemical Engineering; Carnegie Mellon University; Pittsburgh PA 15213
| |
Collapse
|
12
|
Cisneros-Ruiz M, Mayolo-Deloisa K, Rito-Palomares M, Przybycien TM. Separation of PEGylated variants of ribonuclease A and apo-α-lactalbumin via reversed phase chromatography. J Chromatogr A 2014; 1360:209-16. [DOI: 10.1016/j.chroma.2014.07.085] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 06/24/2014] [Accepted: 07/27/2014] [Indexed: 11/27/2022]
|
13
|
Werner A, Hackemann E, Hasse H. Temperature dependence of adsorption of PEGylated lysozyme and pure polyethylene glycol on a hydrophobic resin: Comparison of isothermal titration calorimetry and van’t Hoff data. J Chromatogr A 2014; 1356:188-96. [DOI: 10.1016/j.chroma.2014.06.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 06/17/2014] [Accepted: 06/17/2014] [Indexed: 10/25/2022]
|
14
|
Shang X, Wittbold W, Ghosh R. Purification and analysis of mono-PEGylated HSA by hydrophobic interaction membrane chromatography. J Sep Sci 2013; 36:3673-81. [DOI: 10.1002/jssc.201300511] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2013] [Revised: 09/07/2013] [Accepted: 09/09/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Xiaojiao Shang
- Department of Chemical Engineering; McMaster University; Hamilton Ontario Canada
| | | | - Raja Ghosh
- Department of Chemical Engineering; McMaster University; Hamilton Ontario Canada
| |
Collapse
|
15
|
Yoshimoto N, Isakari Y, Itoh D, Yamamoto S. PEG chain length impacts yield of solid-phase protein PEGylation and efficiency of PEGylated protein separation by ion-exchange chromatography: Insights of mechanistic models. Biotechnol J 2013; 8:801-10. [DOI: 10.1002/biot.201200325] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Revised: 04/10/2013] [Accepted: 06/04/2013] [Indexed: 11/09/2022]
|
16
|
Effects of chemical modifications in the partition behavior of proteins in aqueous two-phase systems: A case study with RNase A. Biotechnol Prog 2013; 29:378-85. [DOI: 10.1002/btpr.1684] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Revised: 12/19/2012] [Indexed: 11/07/2022]
|
17
|
Blaschke T, Werner A, Hasse H. Microcalorimetric study of the adsorption of native and mono-PEGylated bovine serum albumin on anion-exchangers. J Chromatogr A 2013; 1277:58-68. [DOI: 10.1016/j.chroma.2012.12.057] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Revised: 12/17/2012] [Accepted: 12/20/2012] [Indexed: 11/28/2022]
|
18
|
Werner A, Blaschke T, Hasse H. Microcalorimetric study of the adsorption of PEGylated lysozyme and PEG on a mildly hydrophobic resin: influence of ammonium sulfate. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:11376-11383. [PMID: 22830503 DOI: 10.1021/la302239e] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Adsorption of native as well as mono-, di-, and tri-PEGylated lysozyme on Toyopearl PPG-600M, a mildly hydrophobic resin is studied by isothermal titration calorimetry and by independent adsorption equilibrium measurements in sodium phosphate buffer at pH 7.0 and 25 °C. For PEGylation two different PEG sizes are used (5 and 10 kDa) which leads to six different forms of PEGylated lysozyme all of which are systematically studied. Additionally, the adsorption of five pure PEGs is explored. The ammonium sulfate concentration is varied from 600 to 1200 mM. The molar enthalpy of adsorption Δh(p)(ads) is determined from the calorimetric and the adsorption equilibrium data. It is found to be endothermic in all experiments. The comparison of the adsorption of different PEGylated forms shows that the adsorption of PEGylated lysozyme is driven by the adsorption of the PEG chain. The results provide insight into the adsorption mechanisms of polymer-modified proteins on hydrophobic chromatographic resins.
Collapse
Affiliation(s)
- Albert Werner
- Laboratory of Engineering Thermodynamics, University of Kaiserslautern, Kaiserslautern, Germany
| | | | | |
Collapse
|
19
|
Mayolo-Deloisa K, Lienqueo ME, Andrews B, Rito-Palomares M, Asenjo JA. Hydrophobic interaction chromatography for purification of monoPEGylated RNase A. J Chromatogr A 2012; 1242:11-6. [DOI: 10.1016/j.chroma.2012.03.079] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Revised: 03/22/2012] [Accepted: 03/23/2012] [Indexed: 10/28/2022]
|
20
|
Blaschke T, Varon J, Werner A, Hasse H. Microcalorimetric study of the adsorption of PEGylated lysozyme on a strong cation exchange resin. J Chromatogr A 2011; 1218:4720-6. [DOI: 10.1016/j.chroma.2011.05.063] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Revised: 05/17/2011] [Accepted: 05/18/2011] [Indexed: 10/18/2022]
|
21
|
Preparation and characterization of PEGyated Concanavalin A for affinity chromatography with improved stability. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:1732-40. [DOI: 10.1016/j.jchromb.2011.04.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2010] [Revised: 04/04/2011] [Accepted: 04/14/2011] [Indexed: 11/17/2022]
|
22
|
González-Valdez J, Rito-Palomares M, Benavides J. Quantification of RNase A and Its PEGylated Conjugates on Polymer-Salt Rich Environments Using UV Spectrophotometry. ANAL LETT 2011. [DOI: 10.1080/00032711003789959] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
23
|
Pai SS, Przybycien TM, Tilton RD. Protein PEGylation attenuates adsorption and aggregation on a negatively charged and moderately hydrophobic polymer surface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:18231-18238. [PMID: 21067142 DOI: 10.1021/la102709y] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Covalent grafting of poly(ethylene glycol) chains to proteins ("PEGylation") is emerging as an effective technique to increase the in vivo circulation time and efficacy of protein drugs. PEGylated protein adsorption at a variety of solid/aqueous interfaces is a critical aspect of their manufacture, storage, and delivery. A special category of block copolymer, PEGylated proteins have one or more water-soluble linear polymer (PEG) blocks and a single globular protein block that each exert distinct intermolecular and surface interaction forces. We report the impact of PEGylation on protein adsorption at the interface between aqueous solutions and solid films of poly(lactide-co-glycolide) (PLG), a moderately hydrophobic and negatively charged polymer. Using the model protein lysozyme with controlled degrees of PEGylation, we employ total internal reflection fluorescence techniques to measure adsorption isotherms, adsorption reversibility, and the extent of surface-induced aggregation. Lysozyme PEGylation reduces the extent of protein adsorption and surface-induced aggregation and increases the reversibility of adsorption compared to the unconjugated protein. Results are interpreted in terms of steric forces among grafted PEG chains and their effects on protein-protein interactions and protein orientation on the surface.
Collapse
Affiliation(s)
- Sheetal S Pai
- Center for Complex Fluids Engineering, Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | | | | |
Collapse
|
24
|
|
25
|
Fractionation of different PEGylated forms of a protein by chromatography using environment-responsive membranes. J Chromatogr A 2010; 1217:5595-601. [DOI: 10.1016/j.chroma.2010.06.061] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2010] [Revised: 06/21/2010] [Accepted: 06/23/2010] [Indexed: 11/20/2022]
|
26
|
Müller E, Josic D, Schröder T, Moosmann A. Solubility and binding properties of PEGylated lysozyme derivatives with increasing molecular weight on hydrophobic-interaction chromatographic resins. J Chromatogr A 2010; 1217:4696-703. [DOI: 10.1016/j.chroma.2010.05.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2010] [Revised: 04/30/2010] [Accepted: 05/07/2010] [Indexed: 11/26/2022]
|
27
|
Abe M, Akbarzaderaleh P, Hamachi M, Yoshimoto N, Yamamoto S. Interaction mechanism of mono-PEGylated proteins in electrostatic interaction chromatography. Biotechnol J 2010; 5:477-83. [DOI: 10.1002/biot.201000013] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|