1
|
Ni K, Liu A, Ding Y, Ye X. Thermal properties of glycinin in crowded environments. Int J Biol Macromol 2024; 263:130192. [PMID: 38360233 DOI: 10.1016/j.ijbiomac.2024.130192] [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: 09/11/2023] [Revised: 02/06/2024] [Accepted: 02/12/2024] [Indexed: 02/17/2024]
Abstract
Crowded environments, commonly found in the food system, are utilized to enhance the properties of soybean proteins. Despite their widespread application, little information exists regarding the impact of crowded environments on the denaturation behaviors of soybean proteins. In this study, we investigated how crowding agents with varying molecular weights, functional groups, and topology affect the denaturation behavior of glycinin under crowded conditions. The results reveal that thermal stability in PEG crowded environments is mainly influenced by both preferential hydration and binding. The stabilization is primarily enthalpy-driven, with aggregation contributing additional entropic stabilization. Specifically, ethylene glycol and diethylene glycol exhibit temperature-dependent, bilateral effects on glycinin stability. At the denaturation temperature, hydrophobic interactions play a predominant role, decreasing glycinin's thermal stability. However, at a molecular weight of 200 g/mol, there is a delicate balance between destabilizing and stabilizing effects, leading to no significant change in thermal stability. With the addition of PEG 400, 1000, and 2000, besides preferential hydration, additional hard-core repulsions between glycinin molecules enhance thermal stability. Methylation modification experiments demonstrated that 2-methoxyethyl ether exerted a more pronounced denaturing effect. Additionally, the cyclization of PEG 1000 decreased its stabilizing effect.
Collapse
Affiliation(s)
- Kang Ni
- Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Anhong Liu
- Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yanwei Ding
- Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Xiaodong Ye
- Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, China; CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China; Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, Anhui 230026, China.
| |
Collapse
|
2
|
Stewart CJ, Olgenblum GI, Propst A, Harries D, Pielak GJ. Resolving the enthalpy of protein stabilization by macromolecular crowding. Protein Sci 2023; 32:e4573. [PMID: 36691735 PMCID: PMC9942490 DOI: 10.1002/pro.4573] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 01/11/2023] [Accepted: 01/13/2023] [Indexed: 01/25/2023]
Abstract
Proteins in the cellular milieu reside in environments crowded by macromolecules and other solutes. Although crowding can significantly impact the protein folded state stability, most experiments are conducted in dilute buffered solutions. To resolve the effect of crowding on protein stability, we use 19 F nuclear magnetic resonance spectroscopy to follow the reversible, two-state unfolding thermodynamics of the N-terminal Src homology 3 domain of the Drosophila signal transduction protein drk in the presence of polyethylene glycols (PEGs) of various molecular weights and concentrations. Contrary to most current theories of crowding that emphasize steric protein-crowder interactions as the main driving force for entropically favored stabilization, our experiments show that PEG stabilization is accompanied by significant heat release, and entropy disfavors folding. Using our newly developed model, we find that stabilization by ethylene glycol and small PEGs is driven by favorable binding to the folded state. In contrast, for larger PEGs, chemical or soft PEG-protein interactions do not play a significant role. Instead, folding is favored by excluded volume PEG-protein interactions and an exothermic nonideal mixing contribution from release of confined PEG and water upon folding. Our results indicate that crowding acts through molecular interactions subtler than previously assumed and that interactions between solution components with both the folded and unfolded states must be carefully considered.
Collapse
Affiliation(s)
- Claire J. Stewart
- Department of ChemistryUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | - Gil I. Olgenblum
- Institute of Chemistry & the Fritz Haber Research Center, The Hebrew UniversityJerusalemIsrael
| | - Ashlee Propst
- Department of ChemistryUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | - Daniel Harries
- Institute of Chemistry & the Fritz Haber Research Center, The Hebrew UniversityJerusalemIsrael
| | - Gary J. Pielak
- Department of ChemistryUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| |
Collapse
|
3
|
Lv Y, Xu F, Liu F, Chen M. Investigation of Structural Characteristics and Solubility Mechanism of Edible Bird Nest: A Mucin Glycoprotein. Foods 2023; 12:foods12040688. [PMID: 36832763 PMCID: PMC9955789 DOI: 10.3390/foods12040688] [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: 01/06/2023] [Revised: 02/02/2023] [Accepted: 02/02/2023] [Indexed: 02/09/2023] Open
Abstract
In this study, the possible solubility properties and water-holding capacity mechanism of edible bird nest (EBN) were investigated through a structural analysis of soluble and insoluble fractions. The protein solubility and the water-holding swelling multiple increased from 2.55% to 31.52% and 3.83 to 14.00, respectively, with the heat temperature increase from 40 °C to 100 °C. It was observed that the solubility of high-Mw protein increased through heat treatment; meanwhile, part of the low-Mw fragments was estimated to aggregate to high-Mw protein with the hydrophobic interactions and disulfide bonds. The increased crystallinity of the insoluble fraction from 39.50% to 47.81% also contributed to the higher solubility and stronger water-holding capacity. Furthermore, the hydrophobic interactions, hydrogen bonds, and disulfide bonds in EBN were analyzed and the results showed that hydrogen bonds with burial polar group made a favorable contribution to the protein solubility. Therefore, the crystallization area degradation under high temperature with hydrogen bonds and disulfide bonds may be the main reasons underlying the solubility properties and water-holding capacity of EBN.
Collapse
Affiliation(s)
- Yating Lv
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- International Joint Laboratory for Food Safety, Jiangnan University, Wuxi 214122, China
| | - Feifei Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- International Joint Laboratory for Food Safety, Jiangnan University, Wuxi 214122, China
| | - Fei Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- International Joint Laboratory for Food Safety, Jiangnan University, Wuxi 214122, China
| | - Maoshen Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- International Joint Laboratory for Food Safety, Jiangnan University, Wuxi 214122, China
- Correspondence: ; Tel.: +86-510-85197579
| |
Collapse
|
4
|
Bowen H, Durrani R, Delavault A, Durand E, Chenyu J, Yiyang L, Lili S, Jian S, Weiwei H, Fei G. Application of deep eutectic solvents in protein extraction and purification. Front Chem 2022; 10:912411. [PMID: 36147253 PMCID: PMC9485462 DOI: 10.3389/fchem.2022.912411] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 07/26/2022] [Indexed: 11/15/2022] Open
Abstract
Deep eutectic solvents (DESs) are a mixture of hydrogen bond donor (HBD) and hydrogen bond acceptor (HBA) molecules that can consist, respectively, of natural plant metabolites such as sugars, carboxylic acids, amino acids, and ionic molecules, which are for the vast majority ammonium salts. Media such as DESs are modular tools of sustainability that can be pointed toward the extraction of bioactive molecules due to their excellent physicochemical properties, their relatively low price, and accessibility. The present review focuses on the application of DESs for protein extraction and purification. The in-depth effects and principles that apply to DES-mediated extraction using various renewable biomasses will be discussed as well. One of the most important observations being made is that DESs have a clear ability to maintain the biological and/or functional activity of the extracted proteins, as well as increase their stability compared to traditional solvents. They demonstrate true potential for a reproducible but more importantly, scalable protein extraction and purification compared to traditional methods while enabling waste valorization in some particular cases.
Collapse
Affiliation(s)
- Hou Bowen
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, China
| | - Rabia Durrani
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin’an, Zhejiang, China
| | - André Delavault
- Technical Biology, Institute of Process Engineering in Life Sciences II, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Erwann Durand
- CIRAD, UMR QUALISUD, Montpellier, France
- Qualisud, Univ Montpellier, Avignon Université, CIRAD, Institut Agro, Université de la Réunion, Montpellier, France
| | - Jiang Chenyu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin’an, Zhejiang, China
| | - Long Yiyang
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, China
| | - Song Lili
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin’an, Zhejiang, China
| | - Song Jian
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, College of Chemistry and Materials Engineering, Zhejiang A & F University, Hangzhou, Zhejiang, China
| | - Huan Weiwei
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, College of Chemistry and Materials Engineering, Zhejiang A & F University, Hangzhou, Zhejiang, China
- *Correspondence: Gao Fei, ; Huan Weiwei,
| | - Gao Fei
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, China
- *Correspondence: Gao Fei, ; Huan Weiwei,
| |
Collapse
|
5
|
Poly (ethylene) glycol (PEG) precipitation of glycosylated and non-glycosylated monoclonal antibodies. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.07.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
6
|
Júnior JRP, Caruso ÍP, de Sá JM, Mezalira TS, de Souza Lima D, Pilau EJ, Roper D, Fernandez MA, Vicente Seixas FA. Characterization of Secondary Structure and Thermal Stability by
Biophysical Methods of the D-alanyl,D-alanine Ligase B Protein from
Escherichia coli. Protein Pept Lett 2022; 29:448-459. [DOI: 10.2174/0929866529666220405104446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 01/27/2022] [Accepted: 02/04/2022] [Indexed: 11/22/2022]
Abstract
Background:
Peptidoglycan (PG) is a key structural component of the bacterial cell wall and interruption of its biosynthesis is a validated target for antimicrobials. Of the enzymes involved in PG biosynthesis, D-alanyl,D-alanine ligase B (DdlB), is responsible for the condensation of two alanines, forming D-Ala-D-Ala, which is required for subsequent extracellular transpeptidase crosslinking of the mature peptidoglycan polymer.
Objectives:
We aimed the biophysical characterization of recombinant Escherichia coli DdlB (EcDdlB), regarding parameters of melting temperature (Tm), calorimetry and van’t Hoff enthalpy changes of denaturation ( and ), as well as characterization of elements of secondary structure at three different pHs.
Methods:
DdlB was overexpressed in E. coli BL21 and purified by affinity chromatography. Thermal stability and structural characteristics of the purified enzyme were analyzed by circular dichroism (CD), differential scanning calorimetry and fluorescence spectroscopy.
Results:
The stability of EcDdlB increased with proximity to its pI of 5.0, reaching the maximum at pH 5.4 with Tm and of 52.68 ºC and 484 kJ.mol-1, respectively. Deconvolutions of the CD spectra at 20 ºC showed a majority percentage of α-helix at pH 5.4 and 9.4, whereas for pH 7.4, an equal contribution of β-structures and α-helices was calculated. Thermal denaturation process of EcDdlB proved to be irreversible with an increase in β-structures that can contribute to the formation of protein aggregates.
Conclutions:
Such results will be useful for energy minimization of structural models aimed at virtual screening simulations, providing useful information in the search for drugs that inhibit peptidoglycan synthesis.
Collapse
Affiliation(s)
| | - Ícaro Putinhon Caruso
- Department of Physics,
Instituto de Biociências, Letras e Ciências Exatas - Universidade Estadual Paulista “Júlio de Mesquita Filho”, São
José do Rio Preto, SP, Brazil
- National Center for Nuclear Magnetic Resonance of Macromolecules, Institute of Medical Biochemistry and National Center for Structure Biology and Bioimaging (CENABIO), Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro, RJ, Brazil
| | - Jéssica Maróstica de Sá
- Department of Physics,
Instituto de Biociências, Letras e Ciências Exatas - Universidade Estadual Paulista “Júlio de Mesquita Filho”, São
José do Rio Preto, SP, Brazil
| | | | - Diego de Souza Lima
- Departament of Technology, Universidade Estadual de Maringá, Umuarama, PR, Brazil
| | - Eduardo Jorge Pilau
- Departament of Chemistry, Universidade Estadual de Maringá, Maringá, PR, Brazil
| | - David Roper
- School of Life Sciences, The University of Warwick, Coventry, United Kingdom
| | - Maria Aparecida Fernandez
- Departament of Biotechnology, Genetics and Cell Biology, Universidade Estadual de Maringá, Maringá, PR, Brazil
| | | |
Collapse
|
7
|
Ling JKU, Hadinoto K. Deep Eutectic Solvent as Green Solvent in Extraction of Biological Macromolecules: A Review. Int J Mol Sci 2022; 23:3381. [PMID: 35328803 PMCID: PMC8949459 DOI: 10.3390/ijms23063381] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/16/2022] [Accepted: 03/17/2022] [Indexed: 02/01/2023] Open
Abstract
Greater awareness of environmental sustainability has driven many industries to transition from using synthetic organic solvents to greener solvents in their manufacturing. Deep eutectic solvents (DESs) have emerged as a highly promising category of green solvents with well-demonstrated and wide-ranging applications, including their use as a solvent in extraction of small-molecule bioactive compounds for food and pharmaceutical applications. The use of DES as an extraction solvent of biological macromolecules, on the other hand, has not been as extensively studied. Thereby, the feasibility of employing DES for biomacromolecule extraction has not been well elucidated. To bridge this gap, this review provides an overview of DES with an emphasis on its unique physicochemical properties that make it an attractive green solvent (e.g., non-toxicity, biodegradability, ease of preparation, renewable, tailorable properties). Recent advances in DES extraction of three classes of biomacromolecules-i.e., proteins, carbohydrates, and lipids-were discussed and future research needs were identified. The importance of DES's properties-particularly its viscosity, polarity, molar ratio of DES components, and water addition-on the DES extraction's performance were discussed. Not unlike the findings from DES extraction of bioactive small molecules, DES extraction of biomacromolecules was concluded to be generally superior to extraction using synthetic organic solvents.
Collapse
Affiliation(s)
| | - Kunn Hadinoto
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore;
| |
Collapse
|
8
|
Zanker AA, Stargardt P, Kurzbach SC, Turrina C, Mairhofer J, Schwaminger SP, Berensmeier S. Direct capture and selective elution of a secreted polyglutamate-tagged nanobody using bare magnetic nanoparticles. Biotechnol J 2022; 17:e2100577. [PMID: 35085417 DOI: 10.1002/biot.202100577] [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: 10/26/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND The secretion and direct capture of proteins from the extracellular medium is a promising approach for purification, thus enabling integrated bioprocesses. MAJOR RESULTS We demonstrate the secretion of a nanobody (VHH) to the extracellular medium (EM) and its direct capture by bare, non-functionalized magnetic nanoparticles (MNPs). An ompA signal peptide for periplasmic localization, a polyglutamate-tag (E8 ) for selective MNP binding, and a factor Xa protease cleavage site were fused N-terminally to the nanobody. The extracellular production of the E8 -VHH (36 mg L-1 ) was enabled using a growth-decoupled Escherichia coli-based expression system. The direct binding of E8 -VHH to the bare magnetic nanoparticles was possible and could be drastically improved up to a yield of 88% by adding polyethylene glycol (PEG). The selectivity of the polyglutamate-tag enabled a selective elution of the E8 -VHH from the bare MNPs while raising the concentration factor (5x) and purification factor (4x) significantly. CONCLUSION Our studies clearly show that the unique combination of a growth-decoupled E. coli secretion system, the polyglutamate affinity tag, non-functionalized magnetic nanoparticles, and affinity magnetic precipitation is an innovative and novel way to capture and concentrate nanobodies. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Alexander A Zanker
- Bioseparation Engineering Group, Department of Mechanical Engineering, Technical University of Munich, Boltzmannstr. 15, Garching, 85748, Germany
| | | | - Sophie C Kurzbach
- Bioseparation Engineering Group, Department of Mechanical Engineering, Technical University of Munich, Boltzmannstr. 15, Garching, 85748, Germany
| | - Chiara Turrina
- Bioseparation Engineering Group, Department of Mechanical Engineering, Technical University of Munich, Boltzmannstr. 15, Garching, 85748, Germany
| | | | - Sebastian P Schwaminger
- Bioseparation Engineering Group, Department of Mechanical Engineering, Technical University of Munich, Boltzmannstr. 15, Garching, 85748, Germany
| | - Sonja Berensmeier
- Bioseparation Engineering Group, Department of Mechanical Engineering, Technical University of Munich, Boltzmannstr. 15, Garching, 85748, Germany
| |
Collapse
|
9
|
Abstract
Among its attributes, the mythical philosopher’s stone is supposedly capable of turning base metals to gold or silver. In an analogous fashion, we are finding that protein crystallization optimization using ionic liquids (ILs) often results in the conversion of base protein precipitate to crystals. Recombinant inorganic pyrophosphatases (8 of the 11 proteins) from pathogenic bacteria as well as several other proteins were tested for optimization by 23 ILs, plus a dH2O control, at IL concentrations of 0.1, 0.2, and 0.4 M. The ILs were used as additives, and all proteins were crystallized in the presence of at least one IL. For 9 of the 11 proteins, precipitation conditions were converted to crystals with at least one IL. The ILs could be ranked in order of effectiveness, and it was found that ~83% of the precipitation-derived crystallization conditions could be obtained with a suite of just eight ILs, with the top two ILs accounting for ~50% of the hits. Structural trends were found in the effectiveness of the ILs, with shorter-alkyl-chain ILs being more effective. The two top ILs, accounting for ~50% of the unique crystallization results, were choline dihydrogen phosphate and 1-butyl-3-methylimidazolium tetrafluoroborate. Curiously, however, a butyl group was present on the cation of four of the top eight ILs.
Collapse
Affiliation(s)
- Crissy L. Tarver
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Qunying Yuan
- Department of Biological and Environmental Science, Alabama A&M University, Normal, AL 35762, USA
| | - Marc L. Pusey
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35805, USA
- Correspondence: ; Tel.: +1-256-701-7214
| |
Collapse
|
10
|
Stange C, Hafiz S, Korpus C, Skudas R, Frech C. Influence of excipients in Protein A chromatography and virus inactivation. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1179:122848. [PMID: 34274642 DOI: 10.1016/j.jchromb.2021.122848] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 06/20/2021] [Accepted: 06/24/2021] [Indexed: 01/17/2023]
Abstract
The purification of monoclonal antibodies and Fc fusion proteins consist of several unit operations operated commonly as a platform approach, starting with Protein A chromatography. The first capture step, the following low pH virus inactivation, and subsequent ion exchange chromatography steps are mostly able to remove any impurities, like host cell proteins, aggregates, and viruses. The changes in pH and conductivity during these steps can lead to additional unwanted product species like aggregates. In this study, excipients with stabilizing abilities, like polyols, were used as buffer system additives to study their impact on several aspects during Protein A chromatography, low pH virus inactivation, and cation exchange chromatography. The results show that excipients, like PEG4000, influence antibody elution behavior, as well as host-cell protein elution behavior in a pH-gradient setup. Sugar excipients, like Sucrose, stabilize the antibody during low pH virus inactivation. All excipients tested show no negative impact on virus inactivation and dynamic binding capacity in a subsequent cation exchange chromatography step. This study indicates that excipients and, possibly excipient combinations, can have a beneficial effect on purification without harming subsequent downstream processing steps.
Collapse
Affiliation(s)
- Carolin Stange
- Institute for Biochemistry, University of Applied Sciences Mannheim, Paul-Wittsack-Straße 10, 68163 Mannheim, Germany
| | - Supriyadi Hafiz
- Merck KGaA, Frankfurter Straße 250, 64293 Darmstadt, Germany
| | | | - Romas Skudas
- Merck KGaA, Frankfurter Straße 250, 64293 Darmstadt, Germany
| | - Christian Frech
- Institute for Biochemistry, University of Applied Sciences Mannheim, Paul-Wittsack-Straße 10, 68163 Mannheim, Germany.
| |
Collapse
|
11
|
Wätzig H, Hoffstedt M, Krebs F, Minkner R, Scheller C, Zagst H. Protein analysis and stability: Overcoming trial-and-error by grouping according to physicochemical properties. J Chromatogr A 2021; 1649:462234. [PMID: 34038775 DOI: 10.1016/j.chroma.2021.462234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/27/2021] [Accepted: 04/28/2021] [Indexed: 12/15/2022]
Abstract
Today proteins are possibly the most important class of substances. Yet new tasks for proteins are still often solved by trial-and-error approaches. However, in some areas these euphemistically called "screening approaches" are not suitable. E.g. stability tests just take too long and therefore require a more strategic, target-orientated concept. This concept is available by grouping proteins according to their physicochemical properties and then pulling out the right drawer for new tasks. These properties include size, then charge and hydrophobicity as well as their patchinesses, and the degree of order. In addition, solubility, the content of (free) enthalpy, aromatic-amino-acid- and α/β-frequency as well as helix capping, and corresponding patchiness, the number of specific motifs and domains as well as the typical concentration range can be helpful to discriminate between different groups of proteins. Analyzing correlations will reduce the necessary amount of parameters and additional ones, which may be still undiscovered at the present time, can be identified looking at protein subgroups with similar physicochemical properties which still behave heterogeneously. Step-by-step the methodology will be improved. Possibly protein stability will be the driver of this process, but all other areas such as production, purification and analytics including sample pre-treatment and the choice of appropriate separation conditions for e.g. chromatography and electrophoresis will profit from a rational strategy.
Collapse
Affiliation(s)
- Hermann Wätzig
- Technische Universität Braunschweig, Institute of Medicinal and Pharmaceutical Chemistry, Beethovenstraße 55, Braunschweig 38106, Germany.
| | - Marc Hoffstedt
- Technische Universität Braunschweig, Institute of Medicinal and Pharmaceutical Chemistry, Beethovenstraße 55, Braunschweig 38106, Germany
| | - Finja Krebs
- Technische Universität Braunschweig, Institute of Medicinal and Pharmaceutical Chemistry, Beethovenstraße 55, Braunschweig 38106, Germany
| | - Robert Minkner
- Technische Universität Braunschweig, Institute of Medicinal and Pharmaceutical Chemistry, Beethovenstraße 55, Braunschweig 38106, Germany
| | - Christin Scheller
- Technische Universität Braunschweig, Institute of Medicinal and Pharmaceutical Chemistry, Beethovenstraße 55, Braunschweig 38106, Germany
| | - Holger Zagst
- Technische Universität Braunschweig, Institute of Medicinal and Pharmaceutical Chemistry, Beethovenstraße 55, Braunschweig 38106, Germany
| |
Collapse
|
12
|
Luo H, Li Y, Robbins D, Wang SC, Xi G, Cox M, Nicholson SM, Wei C, Pabst TM, Wang WK. Safety risk management for low molecular weight process-related impurities in monoclonal antibody therapeutics: Categorization, risk assessment, testing strategy, and process development with leveraging clearance potential. Biotechnol Prog 2020; 37:e3119. [PMID: 33373106 PMCID: PMC8365748 DOI: 10.1002/btpr.3119] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 12/04/2020] [Accepted: 12/20/2020] [Indexed: 11/12/2022]
Abstract
Process-related impurities (PRIs) derived from manufacturing process should be minimized in final drug product. ICH Q3A provides a regulatory road map for PRIs but excludes biologic drugs like monoclonal antibodies (mAbs) that contain biological PRIs (e.g. host cell proteins and DNA) and low molecular weight (LMW) PRIs (e.g., fermentation media components and downstream chemical reagents). Risks from the former PRIs are typically addressed by routine tests to meet regulatory expectations, while a similar routine-testing strategy is unrealistic and unnecessary for LMW PRIs, and thus a risk-assessment-guided testing strategy is often utilized. In this report, we discuss a safety risk management strategy including categorization, risk assessment, testing strategy, and its integrations with other CMC development activities, as well as downstream clearance potentials. The clearance data from 28 mAbs successfully addressed safety concerns but did not fully reveal the process clearance potentials. Therefore, we carried out studies with 13 commonly seen LMW PRIs in a typical downstream process for mAbs. Generally, Protein A chromatography and cation exchange chromatography operating in bind-and-elute mode showed excellent clearances with greater than 1,000- and 100-fold clearance, respectively. The diafiltration step had better clearance (greater than 100-fold) for the positively and neutrally charged LMW PRIs than for the negatively charged or hydrophobic PRIs. We propose that a typical mAb downstream process provides an overall clearance of 5,000-fold. Additionally, the determined sieving coefficients will facilitate diafiltration process development. This report helps establish effective safety risk management and downstream process design with robust clearance for LMW PRIs.
Collapse
Affiliation(s)
- Haibin Luo
- Purification Process Sciences, Biopharmaceutical Development Department, Biopharmaceuticals R&D, AstraZeneca, One Medimmune Way, Gaithersburg, Maryland, USA
| | - Yuling Li
- Purification Process Sciences, Biopharmaceutical Development Department, Biopharmaceuticals R&D, AstraZeneca, One Medimmune Way, Gaithersburg, Maryland, USA
| | - David Robbins
- Purification Process Sciences, Biopharmaceutical Development Department, Biopharmaceuticals R&D, AstraZeneca, One Medimmune Way, Gaithersburg, Maryland, USA
| | - Sheau-Chiann Wang
- Analytical Sciences, Biopharmaceutical Development Department, Biopharmaceuticals R&D, AstraZeneca, One Medimmune Way, Gaithersburg, Maryland, USA
| | - Guoling Xi
- Purification Process Sciences, Biopharmaceutical Development Department, Biopharmaceuticals R&D, AstraZeneca, One Medimmune Way, Gaithersburg, Maryland, USA
| | - Matthew Cox
- Purification Process Sciences, Biopharmaceutical Development Department, Biopharmaceuticals R&D, AstraZeneca, One Medimmune Way, Gaithersburg, Maryland, USA
| | - Simone M Nicholson
- Safety Science, Biopharmaceutical Development Department, Biopharmaceuticals R&D, AstraZeneca, One Medimmune Way, Gaithersburg, Maryland, USA
| | - Chenghong Wei
- Regulatory Affairs, Biopharmaceutical Development Department, Biopharmaceuticals R&D, AstraZeneca, One Medimmune Way, Gaithersburg, Maryland, USA
| | - Timothy M Pabst
- Purification Process Sciences, Biopharmaceutical Development Department, Biopharmaceuticals R&D, AstraZeneca, One Medimmune Way, Gaithersburg, Maryland, USA
| | - William K Wang
- Purification Process Sciences, Biopharmaceutical Development Department, Biopharmaceuticals R&D, AstraZeneca, One Medimmune Way, Gaithersburg, Maryland, USA
| |
Collapse
|
13
|
Parray ZA, Ahmad F, Hassan MI, Islam A. Conformational changes in cytochrome c directed by ethylene glycol accompanying complex formation: Protein-solvent preferential interaction or/and kosmotropic effect. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 242:118788. [PMID: 32810818 DOI: 10.1016/j.saa.2020.118788] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 07/04/2020] [Accepted: 07/19/2020] [Indexed: 06/11/2023]
Abstract
When proteins interact with solvent or co-solutes with a high specificity and affinity, protein-ligand complexes may be formed. Such phenomenon may involve the processes like intra- and intermolecular interactions, which result in interaction based protein folding. In this study, cytochrome c (cyt c) was treated with different concentrations of ethylene glycol (EG) in crowded and confined media to check its structural stability using various spectroscopic techniques at pH 7.0 and 25 °C. The various spectroscopic techniques including circular dichroism (Soret, far- and near-UV regions), Fourier transform infrared (FTIR), absorption (UV and visible) and Trp fluorescence shows both secondary and tertiary structure of cyt c increases when treated with EG. The investigations using dynamic light scattering (DLS), time resolved fluorescence and isothermal titration calorimetry (ITC) for binding studies shows weak interaction between EG and cyt c. Small increase in the structure of the protein and insignificant decrease in hydrodynamic radii of the protein was observed from the studies. Molecular docking studies showed that EG has binding site on the protein and interact with few amino acid residues by weak interactions such as van der Waals and hydrogen bonding. This study helps in understanding the protein-ligand interactions, provides facts and the mechanisms that mediates the recognition of binding site for specific ligand to the receptor protein, which make possible of the discovery, design, and development of drugs at molecular level without affecting proteins within an organism.
Collapse
Affiliation(s)
- Zahoor Ahmad Parray
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Faizan Ahmad
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Md Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Asimul Islam
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India.
| |
Collapse
|
14
|
Parray Z, Ahmad F, Hassan MI, Hasan I, Islam A. Effects of Ethylene Glycol on the Structure and Stability of Myoglobin Using Spectroscopic, Interaction, and In Silico Approaches: Monomer Is Different from Those of Its Polymers. ACS OMEGA 2020; 5:13840-13850. [PMID: 32566850 PMCID: PMC7301589 DOI: 10.1021/acsomega.0c01185] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 05/25/2020] [Indexed: 06/11/2023]
Abstract
Investigation of changes in thermal stabilities and structures of proteins in the presence of different co-solutes (ligands) is an integral part in the basic research, discovery, and development of drugs. Ethylene glycol (EG) is known to be toxic and causes teratogenic, inducing primarily skeletal and external malformations and other diseases. The effect of EG on the structure and thermal stability of myoglobin (Mb) was studied using various spectroscopic techniques at pH 7.0 and two different temperatures. As revealed by circular dichroism, Trp fluorescence, nano-DSF, and absorption (UV and visible) measurements, EG (i) has no significant effect on secondary and tertiary structures of Mb at 25 °C, and (ii) it decreases the thermal stability of the protein, which increases with increasing concentration of EG. As revealed by ANS (8-anilino-1-naphthalene sulfonic acid) fluorescence measurements, heat-induced denatured protein has newly exposed hydrophobic patches that bind to ANS. Isothermal titration calorimetry revealed that the interaction between EG and Mb is temperature dependent; the preferential interaction of EG is entropy driven at low temperature, 298 K (25 °C), and it is enthalpy driven at higher temperature, 343 K (70 °C). Molecular docking study showed that EG interacts with side chains of amino acid residues of Mb through van der Waals interactions and hydrogen bonding.
Collapse
Affiliation(s)
- Zahoor
Ahmad Parray
- Centre
for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Faizan Ahmad
- Centre
for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Md Imtaiyaz Hassan
- Centre
for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Ikramul Hasan
- Department
of Basic Medical Science, Faculty of Applied Medical Sciences, Al-Baha University, Al-Baha 110025, KSA
| | - Asimul Islam
- Centre
for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| |
Collapse
|
15
|
Hu Y, Arora J, Joshi SB, Esfandiary R, Middaugh CR, Weis DD, Volkin DB. Characterization of Excipient Effects on Reversible Self-Association, Backbone Flexibility, and Solution Properties of an IgG1 Monoclonal Antibody at High Concentrations: Part 1. J Pharm Sci 2020; 109:340-352. [DOI: 10.1016/j.xphs.2019.06.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 05/13/2019] [Accepted: 06/04/2019] [Indexed: 12/21/2022]
|
16
|
Chai Q, Shih J, Weldon C, Phan S, Jones BE. Development of a high-throughput solubility screening assay for use in antibody discovery. MAbs 2019; 11:747-756. [PMID: 30913963 DOI: 10.1080/19420862.2019.1589851] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
Poor solubility is a common challenge encountered during the development of high concentration monoclonal antibody (mAb) formulations, but there are currently no methods that can provide predictive information on high-concentration behavior of mAbs in early discovery. We explored the utility of methodologies used for determining extrapolated solubility as a way to rank-order mAbs based on their relative solubility properties. We devised two approaches to accomplish this: 1) vapor diffusion technique utilized in traditional protein crystallization practice, and 2) polyethylene glycol (PEG)-induced precipitation and quantitation by turbidity. Using a variety of in-house mAbs with known high-concentration behavior, we demonstrated that both approaches exhibited reliable predictability of the relative solubility properties of these mAbs. Optimizing the latter approach, we developed a format that is capable of screening a large panel of mAbs in multiple pH and buffer conditions. This simple, material-saving, high-throughput approach enables the selection of superior molecules and optimal formulation conditions much earlier in the antibody discovery process, prior to time-consuming and material intensive high-concentration studies.
Collapse
Affiliation(s)
- Qing Chai
- a BioTechnology Discovery Research , Eli Lilly Biotechnology Center , San Diego , CA , USA
| | - James Shih
- a BioTechnology Discovery Research , Eli Lilly Biotechnology Center , San Diego , CA , USA
| | - Caroline Weldon
- b Intellicyt Corporation , Part of the Sartorius Group , Albuquerque , NM , USA
| | - Samantha Phan
- a BioTechnology Discovery Research , Eli Lilly Biotechnology Center , San Diego , CA , USA
| | - Bryan E Jones
- a BioTechnology Discovery Research , Eli Lilly Biotechnology Center , San Diego , CA , USA
| |
Collapse
|
17
|
Xu Y, Wang D, Mason B, Rossomando T, Li N, Liu D, Cheung JK, Xu W, Raghava S, Katiyar A, Nowak C, Xiang T, Dong DD, Sun J, Beck A, Liu H. Structure, heterogeneity and developability assessment of therapeutic antibodies. MAbs 2018; 11:239-264. [PMID: 30543482 DOI: 10.1080/19420862.2018.1553476] [Citation(s) in RCA: 165] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Increasing attention has been paid to developability assessment with the understanding that thorough evaluation of monoclonal antibody lead candidates at an early stage can avoid delays during late-stage development. The concept of developability is based on the knowledge gained from the successful development of approximately 80 marketed antibody and Fc-fusion protein drug products and from the lessons learned from many failed development programs over the last three decades. Here, we reviewed antibody quality attributes that are critical to development and traditional and state-of-the-art analytical methods to monitor those attributes. Based on our collective experiences, a practical workflow is proposed as a best practice for developability assessment including in silico evaluation, extended characterization and forced degradation using appropriate analytical methods that allow characterization with limited material consumption and fast turnaround time.
Collapse
Affiliation(s)
- Yingda Xu
- a Protein Analytics , Adimab , Lebanon , NH , USA
| | - Dongdong Wang
- b Analytical Department , Bioanalytix, Inc ., Cambridge , MA , USA
| | - Bruce Mason
- c Product Characterization , Alexion Pharmaceuticals, Inc ., New Haven , CT , USA
| | - Tony Rossomando
- c Product Characterization , Alexion Pharmaceuticals, Inc ., New Haven , CT , USA
| | - Ning Li
- d Analytical Chemistry , Regeneron Pharmaceuticals, Inc ., Tarrytown , NY , USA
| | - Dingjiang Liu
- e Formulation Development , Regeneron Pharmaceuticals, Inc ., Tarrytown , NY , USA
| | - Jason K Cheung
- f Pharmaceutical Sciences , MRL, Merck & Co., Inc ., Kenilworth , NJ , USA
| | - Wei Xu
- g Analytical Method Development , MRL, Merck & Co., Inc ., Kenilworth , NJ , USA
| | - Smita Raghava
- h Sterile Formulation Sciences , MRL, Merck & Co., Inc ., Kenilworth , NJ , USA
| | - Amit Katiyar
- i Analytical Development , Bristol-Myers Squibb , Pennington , NJ , USA
| | - Christine Nowak
- c Product Characterization , Alexion Pharmaceuticals, Inc ., New Haven , CT , USA
| | - Tao Xiang
- j Manufacturing Sciences , Abbvie Bioresearch Center , Worcester , MA , USA
| | - Diane D Dong
- j Manufacturing Sciences , Abbvie Bioresearch Center , Worcester , MA , USA
| | - Joanne Sun
- k Product development , Innovent Biologics , Suzhou Industrial Park , China
| | - Alain Beck
- l Analytical chemistry , NBEs, Center d'immunologie Pierre Fabre , St Julien-en-Genevois Cedex , France
| | - Hongcheng Liu
- c Product Characterization , Alexion Pharmaceuticals, Inc ., New Haven , CT , USA
| |
Collapse
|
18
|
Guiberson NGL, Pineda A, Abramov D, Kharel P, Carnazza KE, Wragg RT, Dittman JS, Burré J. Mechanism-based rescue of Munc18-1 dysfunction in varied encephalopathies by chemical chaperones. Nat Commun 2018; 9:3986. [PMID: 30266908 PMCID: PMC6162227 DOI: 10.1038/s41467-018-06507-4] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 09/07/2018] [Indexed: 12/01/2022] Open
Abstract
Heterozygous de novo mutations in the neuronal protein Munc18-1 are linked to epilepsies, intellectual disability, movement disorders, and neurodegeneration. These devastating diseases have a poor prognosis and no known cure, due to lack of understanding of the underlying disease mechanism. To determine how mutations in Munc18-1 cause disease, we use newly generated S. cerevisiae strains, C. elegans models, and conditional Munc18-1 knockout mouse neurons expressing wild-type or mutant Munc18-1, as well as in vitro studies. We find that at least five disease-linked missense mutations of Munc18-1 result in destabilization and aggregation of the mutant protein. Aggregates of mutant Munc18-1 incorporate wild-type Munc18-1, depleting functional Munc18-1 levels beyond hemizygous levels. We demonstrate that the three chemical chaperones 4-phenylbutyrate, sorbitol, and trehalose reverse the deficits caused by mutations in Munc18-1 in vitro and in vivo in multiple models, offering a novel strategy for the treatment of varied encephalopathies. Munc18-1 is an evolutionary conserved gene whose mutations are linked to various neurological diseases in human. In order to better understand the exact nature of the mutations, the authors here utilize several model systems to show mutant Munc18-1 can aggregate and deplete functional pool of Wt protein, and that chemical chaperones can reverse the cellular deficits.
Collapse
Affiliation(s)
- Noah Guy Lewis Guiberson
- Brain and Mind Research Institute & Appel Institute for Alzheimer's Disease Research, Weill Cornell Medicine, New York, NY, 10021, USA
| | - André Pineda
- Brain and Mind Research Institute & Appel Institute for Alzheimer's Disease Research, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Debra Abramov
- Brain and Mind Research Institute & Appel Institute for Alzheimer's Disease Research, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Parinati Kharel
- Brain and Mind Research Institute & Appel Institute for Alzheimer's Disease Research, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Kathryn E Carnazza
- Brain and Mind Research Institute & Appel Institute for Alzheimer's Disease Research, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Rachel T Wragg
- Department of Biochemistry, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Jeremy S Dittman
- Department of Biochemistry, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Jacqueline Burré
- Brain and Mind Research Institute & Appel Institute for Alzheimer's Disease Research, Weill Cornell Medicine, New York, NY, 10021, USA.
| |
Collapse
|
19
|
Wang J, Li Y, Wang L, Wang X, Tu P. Comparison of hyaluronic acid-based micelles and polyethylene glycol-based micelles on reversal of multidrug resistance and enhanced anticancer efficacy in vitro and in vivo. Drug Deliv 2018; 25:330-340. [PMID: 29350064 PMCID: PMC6058673 DOI: 10.1080/10717544.2018.1428385] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Polyethylene glycol (PEG)-based block copolymer micelles and hyaluronic acid (HA)-based grafted copolymer micelles have been widely investigated in chemotherapy. In this study, to evaluate the differences among HA-based grafted polymer micelles, PEG-based block polymer micelles and the mixed of these two micelles in enhancing antitumor effects and overcoming MDR, two amphiphilic vitamin E succinate (VES) derivatives, HA VES (HA-g-VES) and PEG 2000 VES (TPGS2k), were applied as nanocarriers to prepare HA-VES micelles (HA-PMs), TPGS2k micelles (TPGS2k-PMs) and the mixed micelles (HA/TPGS2k-PMs) for the co-delivery of doxorubicin (DOX) and curcumin (Cur). With the addition of TPGS2k, the particle size of HA/TPGS2k-PMs (153.37 ± 1.00 nm) was smaller than that of HA-PMs (223.83 ± 1.84) but significantly larger than that of TPGS2k-PMs (about 20 nm). The loading efficiency of HA/TPGS2k-PMs was 7.10%, which was lower than HA-PMs (8.31 ± 0.15%) but higher than TPGS2k-PMs (4.38 ± 0.24%). In vitro, HA/TPGS2k-PMs and TPGS2k-PMs exhibited higher cytotoxicity and reversal MDR effects than HA-PMs in MCF-7/Adr cells. However, HA/TPGS2k-PMs, HA-PMs and TPGS2k-PMs all significantly improved the tumor biodistribution, the antitumor effects and reduced the side effects of DOX in 4T1-tumor-bearing mice, but these three micelles displayed no differences in vivo. Therefore, EPR passive targeting effects caused by PEGylated micelles and CD44 active targeting effects caused by HA-based micelles have no significant variance in the delivery of antitumor drugs by i.v.
Collapse
Affiliation(s)
- Jinling Wang
- a School of Chinese Materia Medica , Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine , Beijing , PR China
| | - Ying Li
- a School of Chinese Materia Medica , Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine , Beijing , PR China
| | - Lifang Wang
- a School of Chinese Materia Medica , Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine , Beijing , PR China
| | - Xiaohui Wang
- a School of Chinese Materia Medica , Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine , Beijing , PR China
| | - Pengfei Tu
- a School of Chinese Materia Medica , Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine , Beijing , PR China
| |
Collapse
|
20
|
Bayat M, Gourabi H, khammari A, Ahmad F, Saboury AA. A comparative study of structure, stability and function of sc-tenecteplase in the presence of stabilizing osmolytes. J Biotechnol 2018; 280:1-10. [DOI: 10.1016/j.jbiotec.2018.05.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 05/17/2018] [Accepted: 05/24/2018] [Indexed: 01/29/2023]
|
21
|
Porpiglia NM, De Palo EF, Savchuk SA, Appolonova SA, Bortolotti F, Tagliaro F. A new sample treatment for asialo-Tf determination with capillary electrophoresis: an added value to the analysis of CDT. Clin Chim Acta 2018; 483:256-262. [DOI: 10.1016/j.cca.2018.05.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 05/09/2018] [Accepted: 05/09/2018] [Indexed: 11/29/2022]
|
22
|
Wang N, Xu Q, Liu Y, Jin Y, Harlina PW, Ma M. Highly efficient extraction and purification of low-density lipoprotein from hen egg yolk. Poult Sci 2018. [PMID: 29534219 DOI: 10.3382/ps/pey059] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Low-density lipoprotein (LDL) from hen egg yolk has high nutritional value and plays an important role in the fields of biology, medicine, and materials. To develop fundamental research about LDL, a highly efficient extraction method is necessary. We found that 30% saturated ammonium sulfate can extract more crude LDL than 40% saturation. We selected polyethylene glycol (PEG; nonionic type) to obtain crude LDL. Three factors were employed, namely, degree of polymerization, concentration of PEG, and pH of egg yolk plasma. The optimized condition was 5% PEG 4,000 and plasma pH 6.0, and the best extraction efficiency was 68.1 ± 0.5 g lipid /100 g DM and 69.9 ± 2.0% protein. The crude LDL oil of PEG precipitation was very significantly higher (P < 0.01) than ammonium sulfate precipitation (ASP), while there was no significant difference in protein, which indicates that PEG can extract more crude LDL. When ascorbic acid was added, hydrosulfuryl (SH) groups and lipids oxidation degree of crude LDL extracted by PEG (PEG-LDL) was very significantly lower than ASP (P < 0.01). We also obtained both purified LDL and yolk immunoglobulin (IgY) with an appropriate purification column. This paper proposes a highly efficient method to extract LDL with high activity using PEG and ensures co-purification of LDL and IgY.
Collapse
Affiliation(s)
| | - Q Xu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, R. P. China
| | - Y Liu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, R. P. China
| | - Y Jin
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, R. P. China
| | - P W Harlina
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, R. P. China
| | - M Ma
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, R. P. China
| |
Collapse
|
23
|
Marichal-Gallardo P, Pieler MM, Wolff MW, Reichl U. Steric exclusion chromatography for purification of cell culture-derived influenza A virus using regenerated cellulose membranes and polyethylene glycol. J Chromatogr A 2016; 1483:110-119. [PMID: 28069171 DOI: 10.1016/j.chroma.2016.12.076] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 12/12/2016] [Accepted: 12/27/2016] [Indexed: 01/08/2023]
Abstract
Steric exclusion chromatography has been used for the purification of proteins and bacteriophages using monoliths. The operation is carried out by mixing a crude sample containing the target species with a predetermined concentration and molecular weight of polyethylene glycol (PEG) and loading it onto a non-reactive hydrophilic surface. Product capture occurs by the mutual steric exclusion of PEG between the product and the matrix. Selectivity is significantly influenced by target product size. Product elution is achieved by decreasing the PEG concentration. In this study, a 75cm2 cellulose membrane adsorber was used for the purification of a clarified and inactivated influenza A virus broth produced in a 5L bioreactor using suspension Madin Darby canine kidney cells. Product recovery was above 95% based on hemagglutination activity and single radial immunodiffusion assays. Maximum depletion of double stranded host cell DNA and total protein was 99.7% and 92.4%, respectively. Purified virus particles showed no aggregation with a monodisperse peak around 84nm. 250mL of the clarified inactivated virus broth was purified within 40min. The surface area productivity based on the recovery of the viral hemagglutinin antigen was 28-50mgm-2h-1 depending on the feed and loading conditions.
Collapse
Affiliation(s)
- Pavel Marichal-Gallardo
- Max Planck Institute for Dynamics of Complex Technical Systems, Sandtorstrasse 1, 39106 Magdeburg, Germany.
| | - Michael M Pieler
- Max Planck Institute for Dynamics of Complex Technical Systems, Sandtorstrasse 1, 39106 Magdeburg, Germany
| | - Michael W Wolff
- Max Planck Institute for Dynamics of Complex Technical Systems, Sandtorstrasse 1, 39106 Magdeburg, Germany; Institute of Bioprocess Engineering and Pharmaceutical Technology, Technische Hochschule Mittelhessen, Wiesenstrasse 14, 35390 Gießen, Germany
| | - Udo Reichl
- Max Planck Institute for Dynamics of Complex Technical Systems, Sandtorstrasse 1, 39106 Magdeburg, Germany; Chair of Bioprocess Engineering, Otto-von-Guericke University Magdeburg, Universitätsplatz 2, 39106 Magdeburg, Germany
| |
Collapse
|
24
|
Establishment of an Aqueous PEG 200-Based Deep Eutectic Solvent Extraction and Enrichment Method for Pumpkin (Cucurbita moschata) Seed Protein. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0732-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
25
|
Kluters S, Frech C, von Hirschheydt T, Schaubmar A, Neumann S. Solvent modulation strategy for superior antibody monomer/aggregate separation in cation exchange chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 1006:37-46. [DOI: 10.1016/j.jchromb.2015.10.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Revised: 10/14/2015] [Accepted: 10/15/2015] [Indexed: 10/22/2022]
|
26
|
Elliott Donaghue I, Shoichet MS. Controlled release of bioactive PDGF-AA from a hydrogel/nanoparticle composite. Acta Biomater 2015; 25:35-42. [PMID: 26257128 DOI: 10.1016/j.actbio.2015.08.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 07/28/2015] [Accepted: 08/05/2015] [Indexed: 12/23/2022]
Abstract
Polymer excipients, such as low molar mass poly(ethylene glycol) (PEG), have shown contradictory effects on protein stability when co-encapsulated in polymeric nanoparticles. To gain further insight into these effects, platelet-derived growth factor (PDGF-AA) was encapsulated in polymeric nanoparticles with vs. without PEG. PDGF-AA is a particularly compelling protein, as it has been demonstrated to promote cell survival and induce the oligodendrocyte differentiation of neural stem/progenitor cells (NSPCs) both in vitro and in vivo. Here we show, for the first time, the controlled release of bioactive PDGF-AA from an injectable nanoparticle/hydrogel drug delivery system (DDS). PDGF-AA was encapsulated, with high efficiency, in poly(lactide-co-glycolide) nanoparticles, and its release from the drug delivery system was followed over 21 d. Interestingly, the co-encapsulation of low molecular weight poly(ethylene glycol) increased the PDGF-AA loading but, unexpectedly, accelerated the aggregation of PDGF-AA, resulting in reduced activity and detection by enzyme-linked immunosorbent assay (ELISA). In the absence of PEG, released PDGF-AA remained bioactive as demonstrated with NSPC oligodendrocyte differentiation, similar to positive controls, and significantly different from untreated controls. This work presents a novel delivery method for differentiation factors, such as PDGF-AA, and provides insights into the contradictory effects reported in the literature of excipients, such as PEG, on the loading and release of proteins from polymeric nanoparticles. STATEMENT OF SIGNIFICANCE Previously, the polymer poly(ethylene glycol) (PEG) has been used in many biomaterials applications, from surface coatings to the encapsulation of proteins. In this work, we demonstrate that, unexpectedly, low molecular weight PEG has a deleterious effect on the release of the encapsulated protein platelet-derived growth factor AA (PDGF-AA). We also demonstrate release of bioactive PDGF-AA (in the absence of PEG). Specifically, we demonstrate the differentiation of neural stem and progenitor cells to oligodendrocytes, similar to what is observed with the addition of fresh PDGFAA. A differentiated oligodendrocyte population is a key strategy in central nervous system regeneration. This work is the first demonstration of controlled PDGF-AA release, and also brings new insights to the broader field of protein encapsulation.
Collapse
Affiliation(s)
- Irja Elliott Donaghue
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Canada; Institute of Biomaterials and Biomedical Engineering, University of Toronto, Canada
| | - Molly S Shoichet
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Canada; Institute of Biomaterials and Biomedical Engineering, University of Toronto, Canada; Department of Chemistry, University of Toronto, Canada.
| |
Collapse
|
27
|
Taguchi K, Yamasaki K, Seo H, Otagiri M. Potential Use of Biological Proteins for Liver Failure Therapy. Pharmaceutics 2015; 7:255-74. [PMID: 26404356 PMCID: PMC4588199 DOI: 10.3390/pharmaceutics7030255] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 08/17/2015] [Accepted: 08/26/2015] [Indexed: 01/11/2023] Open
Abstract
Biological proteins have unlimited potential for use as pharmaceutical products due to their various biological activities, which include non-toxicity, biocompatibility, and biodegradability. Recent scientific advances allow for the development of novel innovative protein-based products that draw on the quality of their innate biological activities. Some of them hold promising potential for novel therapeutic agents/devices for addressing hepatic diseases such as hepatitis, fibrosis, and hepatocarcinomas. This review attempts to provide an overview of the development of protein-based products that take advantage of their biological activity for medication, and discusses possibilities for the therapeutic potential of protein-based products produced through different approaches to specifically target the liver (or hepatic cells: hepatocytes, hepatic stellate cells, liver sinusoidal endothelial cells, and Kupffer cells) in the treatment of hepatic diseases.
Collapse
Affiliation(s)
- Kazuaki Taguchi
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 862-0082, Japan.
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 862-0082, Japan.
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 862-0082, Japan.
| | - Hakaru Seo
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 862-0082, Japan.
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 862-0082, Japan.
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 862-0082, Japan.
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 862-0082, Japan.
| |
Collapse
|
28
|
Bekale L, Agudelo D, Tajmir-Riahi H. The role of polymer size and hydrophobic end-group in PEG–protein interaction. Colloids Surf B Biointerfaces 2015; 130:141-8. [DOI: 10.1016/j.colsurfb.2015.03.045] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 03/12/2015] [Accepted: 03/19/2015] [Indexed: 01/04/2023]
|
29
|
Knowles DB, Shkel IA, Phan NM, Sternke M, Lingeman E, Cheng X, Cheng L, O'Connor K, Record MT. Chemical Interactions of Polyethylene Glycols (PEGs) and Glycerol with Protein Functional Groups: Applications to Effects of PEG and Glycerol on Protein Processes. Biochemistry 2015; 54:3528-42. [PMID: 25962980 DOI: 10.1021/acs.biochem.5b00246] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In this work, we obtain the data needed to predict chemical interactions of polyethylene glycols (PEGs) and glycerol with proteins and related organic compounds and thereby interpret or predict chemical effects of PEGs on protein processes. To accomplish this, we determine interactions of glycerol and tetraEG with >30 model compounds displaying the major C, N, and O functional groups of proteins. Analysis of these data yields coefficients (α values) that quantify interactions of glycerol, tetraEG, and PEG end (-CH2OH) and interior (-CH2OCH2-) groups with these groups, relative to interactions with water. TetraEG (strongly) and glycerol (weakly) interact favorably with aromatic C, amide N, and cationic N, but unfavorably with amide O, carboxylate O, and salt ions. Strongly unfavorable O and salt anion interactions help make both small and large PEGs effective protein precipitants. Interactions of tetraEG and PEG interior groups with aliphatic C are quite favorable, while interactions of glycerol and PEG end groups with aliphatic C are not. Hence, tetraEG and PEG300 favor unfolding of the DNA-binding domain of lac repressor (lacDBD), while glycerol and di- and monoethylene glycol are stabilizers. Favorable interactions with aromatic and aliphatic C explain why PEG400 greatly increases the solubility of aromatic hydrocarbons and steroids. PEG400-steroid interactions are unusually favorable, presumably because of simultaneous interactions of multiple PEG interior groups with the fused ring system of the steroid. Using α values reported here, chemical contributions to PEG m-values can be predicted or interpreted in terms of changes in water-accessible surface area (ΔASA) and separated from excluded volume effects.
Collapse
Affiliation(s)
- D B Knowles
- †Department of Biochemistry, ‡Department of Chemistry, and §Program in Biophysics, University of Wisconsin-Madison, 433 Babcock Drive, Madison, Wisconsin 53706, United States
| | - Irina A Shkel
- †Department of Biochemistry, ‡Department of Chemistry, and §Program in Biophysics, University of Wisconsin-Madison, 433 Babcock Drive, Madison, Wisconsin 53706, United States
| | - Noel M Phan
- †Department of Biochemistry, ‡Department of Chemistry, and §Program in Biophysics, University of Wisconsin-Madison, 433 Babcock Drive, Madison, Wisconsin 53706, United States
| | - Matt Sternke
- †Department of Biochemistry, ‡Department of Chemistry, and §Program in Biophysics, University of Wisconsin-Madison, 433 Babcock Drive, Madison, Wisconsin 53706, United States
| | - Emily Lingeman
- †Department of Biochemistry, ‡Department of Chemistry, and §Program in Biophysics, University of Wisconsin-Madison, 433 Babcock Drive, Madison, Wisconsin 53706, United States
| | - Xian Cheng
- †Department of Biochemistry, ‡Department of Chemistry, and §Program in Biophysics, University of Wisconsin-Madison, 433 Babcock Drive, Madison, Wisconsin 53706, United States
| | - Lixue Cheng
- †Department of Biochemistry, ‡Department of Chemistry, and §Program in Biophysics, University of Wisconsin-Madison, 433 Babcock Drive, Madison, Wisconsin 53706, United States
| | - Kevin O'Connor
- †Department of Biochemistry, ‡Department of Chemistry, and §Program in Biophysics, University of Wisconsin-Madison, 433 Babcock Drive, Madison, Wisconsin 53706, United States
| | - M Thomas Record
- †Department of Biochemistry, ‡Department of Chemistry, and §Program in Biophysics, University of Wisconsin-Madison, 433 Babcock Drive, Madison, Wisconsin 53706, United States
| |
Collapse
|
30
|
Comparative study on the effects of nystose and fructofuranosyl nystose in the glycation reaction on the antigenicity and conformation of β-lactoglobulin. Food Chem 2015; 188:658-63. [PMID: 26041244 DOI: 10.1016/j.foodchem.2015.05.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 03/02/2015] [Accepted: 05/05/2015] [Indexed: 11/23/2022]
Abstract
Our previous work indicated that the antigenicity of bovine β-lactoglobulin (β-LG) decreased after conjugation with fructo-oligosaccharides (FOS) which was related to its conformational changes. In attempt to unravel further changes of β-LG antigenicity, nystose (GF3) and 1(F)-β-fructofuranosyl nystose (GF4) of FOS were used to investigate the relationship between conformation and antigenicity. The antigenicity of β-LG after conjugated with GF3 and GF4 decreased from 143.4 to 29.5 and 31.6 μg/mL, respectively. The results of mass spectrometry revealed that the molecular weight of β-LG increased from 18.4 to 19.8 and 19.1 kDa after conjugation with GF3 and GF4, respectively. It was shown that the conformational changes of β-LG after conjugation with GF3 were bigger than that with GF4, including quenching of fluorescence intensity, the red-shift of fluorescence spectra, and the increase in sulfhydryl content. However, there was no significant difference in the antigenicity between β-LG-GF3 and β-LG-GF4 conjugates (P>0.05).
Collapse
|
31
|
Pereira MM, Pedro SN, Quental MV, Lima ÁS, Coutinho JAP, Freire MG. Enhanced extraction of bovine serum albumin with aqueous biphasic systems of phosphonium- and ammonium-based ionic liquids. J Biotechnol 2015; 206:17-25. [PMID: 25865275 DOI: 10.1016/j.jbiotec.2015.03.028] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 03/12/2015] [Accepted: 03/28/2015] [Indexed: 11/16/2022]
Abstract
Novel aqueous biphasic systems (ABS) composed of phosphonium- or ammonium-based ionic liquids (ILs), combined with a buffered aqueous solution of potassium citrate/citric acid (pH=7.0), were investigated for the extraction of proteins. For that purpose, the phase diagrams, tie-lines and tie-line lengths were determined at 25 °C, and the performance of these ABS for the extraction of bovine serum albumin (BSA) was then evaluated. The obtained results reveal that, with the exception of the more hydrophobic ILs, most of the systems investigated allow the complete extraction of BSA for the IL-rich phase in a single-step. These remarkable extraction efficiencies are far superior to those afforded by more conventional extraction systems previously reported. The composition of the biphasic systems, i.e., the amount of phase-forming components, was also investigated aiming at reducing the overall costs of the process without losing efficiency on the protein extraction. It is shown that the extraction efficiencies of BSA are maintained at 100% up to high protein concentrations (at least up to 10 g L(-1)). The recovery of the BSA from the IL-rich phase by dialysis is also shown in addition to the demonstration of the IL recyclability and reusability, at least for 3 times. In the sequential three-step extractions (BSA recovery/IL reusability), the extraction efficiencies of BSA for the IL-rich phase were maintained at 100%. For the improved ABS, the preservation of the protein native conformation was confirmed by Size Exclusion High-Performance Liquid Chromatography (used also as the quantification method) and by Fourier Transform Infra-Red spectroscopy. According to the results herein reported, ABS composed of phosphonium- or ammonium-based ILs and a biodegradable organic salt represent an alternative and remarkable platform for the extraction of BSA and may be extended to other proteins of interest.
Collapse
Affiliation(s)
- Matheus M Pereira
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Sónia N Pedro
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Maria V Quental
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Álvaro S Lima
- Programa de Pós-Graduação em Engenharia de Processos, Universidade Tiradentes, Farolândia, CEP 49032-490 Aracaju, SE, Brazil
| | - João A P Coutinho
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Mara G Freire
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| |
Collapse
|
32
|
Liu Y, Zhang XF, Zhang CY, Guo YZ, Xie SX, Zhou RB, Cheng QD, Yan EK, Liu YL, Lu XL, Lu QQ, Lu HM, Ye YJ, Yin DC. A protein crystallisation screening kit designed using polyethylene glycol as major precipitant. CrystEngComm 2015. [DOI: 10.1039/c5ce00779h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
33
|
Lemke LS, Chura-Chambi RM, Rodrigues D, Cussiol JRR, Malavasi NV, Alegria TGP, Netto LES, Morganti L. Investigation on solubilization protocols in the refolding of the thioredoxin TsnC from Xylella fastidiosa by high hydrostatic pressure approach. Protein Expr Purif 2014; 106:72-7. [PMID: 25448595 DOI: 10.1016/j.pep.2014.10.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 10/21/2014] [Accepted: 10/23/2014] [Indexed: 01/27/2023]
Abstract
The lack of efficient refolding methodologies must be overcome to take full advantage of the fact that bacteria express high levels of aggregated recombinant proteins. High hydrostatic pressure (HHP) impairs intermolecular hydrophobic and electrostatic interactions, dissociating aggregates, which makes HHP a useful tool to solubilize proteins for subsequent refolding. A process of refolding was set up by using as a model TsnC, a thioredoxin that catalyzes the disulfide reduction to a dithiol, a useful indication of biological activity. The inclusion bodies (IB) were dissociated at 2.4 kbar. The effect of incubation of IB suspensions at 1-800 bar, the guanidine hydrochloride concentration, the oxidized/reduced glutathione (GSH/GSSG) ratios, and the additives in the refolding buffer were analyzed. To assess the yields of fully biologically active protein obtained for each tested condition, it was crucial to analyze both the TsnC solubilization yield and its enzymatic activity. Application of 2.4 kbar to the IB suspension in the presence of 9 mM GSH, 1mM GSSG, 0.75 M guanidine hydrochloride, and 0.5M arginine with subsequent incubation at 1 bar furnished high refolding yield (81%). The experience gained in this study shall help to establish efficient HHP-based protein refolding processes for other proteins.
Collapse
Affiliation(s)
- Laura Simoni Lemke
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, Centro de Biotecnologia, São Paulo, Brazil
| | - Rosa Maria Chura-Chambi
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, Centro de Biotecnologia, São Paulo, Brazil
| | - Daniella Rodrigues
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, Centro de Biotecnologia, São Paulo, Brazil
| | - Jose Renato Rosa Cussiol
- Instituto de Biociências, Departamento de Genética e Biologia Evolutiva, Universidade de São Paulo, São Paulo, Brazil
| | - Natalia Vallejo Malavasi
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, Centro de Biotecnologia, São Paulo, Brazil
| | - Thiago Geronimo Pires Alegria
- Instituto de Biociências, Departamento de Genética e Biologia Evolutiva, Universidade de São Paulo, São Paulo, Brazil
| | - Luis Eduardo Soares Netto
- Instituto de Biociências, Departamento de Genética e Biologia Evolutiva, Universidade de São Paulo, São Paulo, Brazil
| | - Ligia Morganti
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, Centro de Biotecnologia, São Paulo, Brazil.
| |
Collapse
|
34
|
Bromelain: an overview of industrial application and purification strategies. Appl Microbiol Biotechnol 2014; 98:7283-97. [DOI: 10.1007/s00253-014-5889-y] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Revised: 06/08/2014] [Accepted: 06/10/2014] [Indexed: 10/25/2022]
|
35
|
Danwanichakul D, Rattanaphan O, Srisatjang J, Danwanichakul P. Extraction of protein from skim natural rubber latex using PEG as a surfactant via low speed centrifugation and continuous flow. J Appl Polym Sci 2014. [DOI: 10.1002/app.39900] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Duangkamol Danwanichakul
- Center of Excellence on Natural Rubber Technology, Department of Chemical Engineering, Faculty of Engineering; Thammasat University; Pathumthani 12120 Thailand
| | - Ornthana Rattanaphan
- Center of Excellence on Natural Rubber Technology, Department of Chemical Engineering, Faculty of Engineering; Thammasat University; Pathumthani 12120 Thailand
| | - Jirarat Srisatjang
- Center of Excellence on Natural Rubber Technology, Department of Chemical Engineering, Faculty of Engineering; Thammasat University; Pathumthani 12120 Thailand
| | - Panu Danwanichakul
- Center of Excellence on Natural Rubber Technology, Department of Chemical Engineering, Faculty of Engineering; Thammasat University; Pathumthani 12120 Thailand
| |
Collapse
|
36
|
Bekale L, Chanphai P, Sanyakamdhorn S, Agudelo D, Tajmir-Riahi HA. Microscopic and thermodynamic analysis of PEG–β-lactoglobulin interaction. RSC Adv 2014. [DOI: 10.1039/c4ra03303e] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We report the binding of milk β-lactoglobulin (β-LG) with PEG-3000, PEG-6000 and methoxypoly(ethylene glycol) anthracene (mPEG-anthracene) in aqueous solution at pH 7.4, using multiple spectroscopic methods, thermodynamic analysis, transmission electron microscopy (TEM) and molecular modeling.
Collapse
Affiliation(s)
- L. Bekale
- Department of Chemistry-Physics
- University of Québec at Trois-Rivières
- Trois-Rivières, Canada
| | - P. Chanphai
- Department of Chemistry-Physics
- University of Québec at Trois-Rivières
- Trois-Rivières, Canada
| | - S. Sanyakamdhorn
- Department of Chemistry-Physics
- University of Québec at Trois-Rivières
- Trois-Rivières, Canada
| | - D. Agudelo
- Department of Chemistry-Physics
- University of Québec at Trois-Rivières
- Trois-Rivières, Canada
| | - H. A. Tajmir-Riahi
- Department of Chemistry-Physics
- University of Québec at Trois-Rivières
- Trois-Rivières, Canada
| |
Collapse
|
37
|
Geng F, Huang X, Yan N, Jia L, Ma M. Purification of hen egg white ovomacroglobulin using one-step chromatography. J Sep Sci 2013; 36:3717-22. [DOI: 10.1002/jssc.201300425] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 07/30/2013] [Accepted: 09/25/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Fang Geng
- National R&D Center for Egg Processing; Huazhong Agricultural University; Wuhan Hubei P. R. China
| | - Xi Huang
- National R&D Center for Egg Processing; Huazhong Agricultural University; Wuhan Hubei P. R. China
| | - Nannan Yan
- National R&D Center for Egg Processing; Huazhong Agricultural University; Wuhan Hubei P. R. China
| | - Lili Jia
- National R&D Center for Egg Processing; Huazhong Agricultural University; Wuhan Hubei P. R. China
| | - Meihu Ma
- National R&D Center for Egg Processing; Huazhong Agricultural University; Wuhan Hubei P. R. China
| |
Collapse
|
38
|
Wu J, Wang Z, Lin W, Chen S. Investigation of the interaction between poly(ethylene glycol) and protein molecules using low field nuclear magnetic resonance. Acta Biomater 2013; 9:6414-20. [PMID: 23318816 DOI: 10.1016/j.actbio.2013.01.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2012] [Revised: 12/24/2012] [Accepted: 01/07/2013] [Indexed: 11/19/2022]
Abstract
A comprehensive insight into the interaction between proteins and poly(ethylene glycol) (PEG) is crucial to understand the behavior of PEG, which is widely used in pharmaceutical and medical applications. Although PEG is believed to be an excellent material to resist non-specific protein adsorption, there is a lack of quantitative information about the interactions between proteins and PEG. In this paper the interactions of bovine serum albumin (BSA) and lysozyme (LYZ) with different molecular weight (MW) PEGs were investigated through the T2 relaxation time of PEGs measured by low field nuclear magnetic resonance spectroscopy. The integrated signal intensity of PEGs was quantified under various conditions from the concentrations and MWs of PEG, and ionic strength of solutions, as well as the molar ratios of PEG to protein. The results show that a large number of PEG molecules could associate with protein molecules with association constants in the range ~10(4)-10(5) M(-1). The association constant is insensitive to the ionic strength change in the physiological range and the lowest associate constant occurs at the medium MW PEG with protein. This suggests that the interaction between PEG and protein molecules might not be negligible in investigations of the resistance to non-specific protein adsorption. Long chain PEG coatings might cause modest protein adsorption, which could interfere with any weak specific interaction between ligand and receptor. Thus, it is necessary to reconsider the popular accepted method of protecting nanoparticles (NP) in blood with long chain PEG coatings since these NPs might be surrounded by a layer of weakly adsorbed plasma protein in the circulatory system.
Collapse
Affiliation(s)
- Jiang Wu
- State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
| | | | | | | |
Collapse
|
39
|
Zhong J, Xu Y, Liu W, Liu C, Luo S, Tu Z. Antigenicity and functional properties of β-lactoglobulin conjugated with fructo-oligosaccharides in relation to conformational changes. J Dairy Sci 2013; 96:2808-15. [DOI: 10.3168/jds.2012-6259] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Accepted: 01/19/2013] [Indexed: 11/19/2022]
|
40
|
Kramer RM, Shende VR, Motl N, Pace CN, Scholtz JM. Toward a molecular understanding of protein solubility: increased negative surface charge correlates with increased solubility. Biophys J 2012; 102:1907-15. [PMID: 22768947 DOI: 10.1016/j.bpj.2012.01.060] [Citation(s) in RCA: 221] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2011] [Revised: 01/14/2012] [Accepted: 01/30/2012] [Indexed: 10/28/2022] Open
Abstract
Protein solubility is a problem for many protein chemists, including structural biologists and developers of protein pharmaceuticals. Knowledge about how intrinsic factors influence solubility is limited due to the difficulty of obtaining quantitative solubility measurements. Solubility measurements in buffer alone are difficult to reproduce, because gels or supersaturated solutions often form, making it impossible to determine solubility values for many proteins. Protein precipitants can be used to obtain comparative solubility measurements and, in some cases, estimations of solubility in buffer alone. Protein precipitants fall into three broad classes: salts, long-chain polymers, and organic solvents. Here, we compare the use of representatives from two classes of precipitants, ammonium sulfate and polyethylene glycol 8000, by measuring the solubility of seven proteins. We find that increased negative surface charge correlates strongly with increased protein solubility and may be due to strong binding of water by the acidic amino acids. We also find that the solubility results obtained for the two different precipitants agree closely with each other, suggesting that the two precipitants probe similar properties that are relevant to solubility in buffer alone.
Collapse
Affiliation(s)
- Ryan M Kramer
- Department of Biochemistry and Biophysics, Texas A&M Health Science Center, Texas A&M University, College Station, Texas, USA
| | | | | | | | | |
Collapse
|
41
|
Co-purification of chicken egg white proteins using polyethylene glycol precipitation and anion-exchange chromatography. Sep Purif Technol 2012. [DOI: 10.1016/j.seppur.2012.05.021] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
42
|
Srivastava SK, Gayathri S, Manjasetty BA, Gopal B. Analysis of conformational variation in macromolecular structural models. PLoS One 2012; 7:e39993. [PMID: 22808083 PMCID: PMC3392262 DOI: 10.1371/journal.pone.0039993] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Accepted: 05/30/2012] [Indexed: 11/18/2022] Open
Abstract
Experimental conditions or the presence of interacting components can lead to variations in the structural models of macromolecules. However, the role of these factors in conformational selection is often omitted by in silico methods to extract dynamic information from protein structural models. Structures of small peptides, considered building blocks for larger macromolecular structural models, can substantially differ in the context of a larger protein. This limitation is more evident in the case of modeling large multi-subunit macromolecular complexes using structures of the individual protein components. Here we report an analysis of variations in structural models of proteins with high sequence similarity. These models were analyzed for sequence features of the protein, the role of scaffolding segments including interacting proteins or affinity tags and the chemical components in the experimental conditions. Conformational features in these structural models could be rationalized by conformational selection events, perhaps induced by experimental conditions. This analysis was performed on a non-redundant dataset of protein structures from different SCOP classes. The sequence-conformation correlations that we note here suggest additional features that could be incorporated by in silico methods to extract dynamic information from protein structural models.
Collapse
Affiliation(s)
| | - Savitha Gayathri
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore, India
| | - Babu A. Manjasetty
- European Molecular Biology Laboratory, Grenoble Outstation and Unit of Virus Host-Cell Interactions (UVHCI), Grenoble, France
| | - Balasubramanian Gopal
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore, India
- * E-mail: (SKS); (BG)
| |
Collapse
|
43
|
Zhang X, Qiu N, Geng F, Ma M. Simply and effectively preparing high-purity phosvitin using polyethylene glycol and anion-exchange chromatography. J Sep Sci 2011; 34:3295-301. [DOI: 10.1002/jssc.201100601] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2011] [Revised: 08/16/2011] [Accepted: 08/17/2011] [Indexed: 11/11/2022]
|
44
|
Abbas SA, Sharma VK, Patapoff TW, Kalonia DS. Solubilities and Transfer Free Energies of Hydrophobic Amino Acids in Polyol Solutions: Importance of the Hydrophobicity of Polyols. J Pharm Sci 2011; 100:3096-3104. [DOI: 10.1002/jps.22584] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2010] [Revised: 02/10/2011] [Accepted: 04/06/2011] [Indexed: 11/08/2022]
|
45
|
Effect of chemical chaperones in improving the solubility of recombinant proteins in Escherichia coli. Appl Environ Microbiol 2011; 77:4603-9. [PMID: 21551288 DOI: 10.1128/aem.05259-11] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The recovery of active proteins from inclusion bodies usually involves chaotrope-induced denaturation, followed by refolding of the unfolded protein. The efficiency of renaturation is low, leading to reduced yield of the final product. In this work, we report that recombinant proteins can be overexpressed in the soluble form in the host expression system by incorporating compatible solutes during protein expression. Green fluorescent protein (GFP), which was otherwise expressed as inclusion bodies, could be made to partition off into the soluble fraction when sorbitol and arginine, but not ethylene glycol, were present in the growth medium. Arginine and sorbitol increased the production of soluble protein, while ethylene glycol did not. Production of ATP increased in the presence of sorbitol and arginine, but not ethylene glycol. A control experiment with fructose addition indicated that protein solubilization was not due to a simple ATP increase. We have successfully reproduced these results with the N-terminal domain of HypF (HypF-N), a bacterial protein which forms inclusion bodies in Escherichia coli. Instead of forming inclusion bodies, HypF-N could be expressed as a soluble protein in the presence of sorbitol, arginine, and trehalose in the expression medium.
Collapse
|
46
|
Lee H, Kirchmeier M, Mach H. Monoclonal Antibody Aggregation Intermediates Visualized by Atomic Force Microscopy. J Pharm Sci 2011; 100:416-23. [DOI: 10.1002/jps.22279] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
47
|
Rodkate N, Wichai U, Boontha B, Rutnakornpituk M. Semi-interpenetrating polymer network hydrogels between polydimethylsiloxane/polyethylene glycol and chitosan. Carbohydr Polym 2010. [DOI: 10.1016/j.carbpol.2010.03.023] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
48
|
Mazzaferro L, Breccia JD, Andersson MM, Hitzmann B, Hatti-Kaul R. Polyethyleneimine–protein interactions and implications on protein stability. Int J Biol Macromol 2010; 47:15-20. [DOI: 10.1016/j.ijbiomac.2010.04.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2010] [Revised: 04/13/2010] [Accepted: 04/14/2010] [Indexed: 10/19/2022]
|
49
|
Jorgensen L, Hostrup S, Moeller EH, Grohganz H. Recent trends in stabilising peptides and proteins in pharmaceutical formulation – considerations in the choice of excipients. Expert Opin Drug Deliv 2009; 6:1219-30. [DOI: 10.1517/17425240903199143] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|