1
|
Waller JA, Zheng J, Dyer R, Slaney T, Wu W, Tao L, Ghose S. Ceramic hydroxyapatite chromatography plays a critical role in bispecific antibody purification process for impurity removal. Antib Ther 2023; 6:30-37. [PMID: 36683764 PMCID: PMC9847337 DOI: 10.1093/abt/tbac030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 10/31/2022] [Accepted: 11/05/2022] [Indexed: 11/20/2022] Open
Abstract
Background Significant challenges exist in downstream purification of bispecific antibodies (BsAbs) due to the complexity of BsAb architecture. A unique panel of mispaired species can result in a higher level of product-related impurities. In addition to process-related impurities such as host cell proteins (HCPs) and residual DNA (resDNA), these product-related impurities must be separated from the targeted BsAb product to achieve high purity. Therefore, development of an efficient and robust chromatography purification process is essential to ensure the safety, quality, purity and efficacy of BsAb products that consequently meet regulatory requirements for clinical trials and commercialization. Methods We have developed a robust downstream BsAb process consisting of a mixed-mode ceramic hydroxyapatite (CHT) chromatography step, which offers unique separation capabilities tailored to BsAbs, and assessed impurity clearance. Results We demonstrate that the CHT chromatography column provides additional clearance of low molecular weight (LMW) and high molecular weight (HMW) species that cannot be separated by other chromatography columns such as ion exchange for a particular BsAb, resulting in ≥98% CE-SDS (non-reduced) purity. Moreover, through Polysorbate-80 (PS-80) spiking and LC-MS HCP assessments, we reveal complete clearance of potential PS-80-degrading HCP populations in the CHT eluate product pool. Conclusions In summary, these results demonstrate that CHT mixed-mode chromatography plays an important role in separation of product- and process-related impurities in the BsAb downstream process.
Collapse
Affiliation(s)
- Jessica A Waller
- Biologics Development, Bristol Myers Squibb, Summit, NJ 07901 USA
| | - Ji Zheng
- Biologics Development, Bristol Myers Squibb, Summit, NJ 07901 USA
| | - Rachel Dyer
- Biologics Development, Bristol Myers Squibb, Devens, MA 01434 USA
| | - Thomas Slaney
- Biologics Development, Bristol Myers Squibb, New Brunswick, NJ 08901 USA
| | - Wei Wu
- Biologics Development, Bristol Myers Squibb, New Brunswick, NJ 08901 USA
| | - Li Tao
- Biologics Development, Bristol Myers Squibb, New Brunswick, NJ 08901 USA
| | - Sanchayita Ghose
- Biologics Development, Bristol Myers Squibb, Devens, MA 01434 USA
| |
Collapse
|
2
|
Abstract
Ceramics and ceramic-reinforced metal matrix composites (CMMCs) demonstrate high wear resistance, excellent chemical inertness, and exceptional properties at elevated temperatures. These characteristics are suitable for their utilization in biomedical, aerospace, electronics, and other high-end engineering industries. The aforementioned performances make them difficult to fabricate via conventional manufacturing methods, requiring high costs and energy consumption. To overcome these issues, laser additive manufacturing (LAM) techniques, with high-power laser beams, were developed and extensively employed for processing ceramics and ceramic-reinforced CMMCs-based coatings. In respect to other LAM processes, laser melting deposition (LMD) excels in several aspects, such as high coating efficiency and lower labor cost. Nevertheless, difficulties such as poor bonding between coating and substrate, cracking, and reduced toughness are still encountered in some LMD coatings. In this article, we review recent developments in the LMD of ceramics and CMMCs-based coatings. Issues and solutions, along with development trends, are discussed and summarized in support of implementing this technology for current industrial use.
Collapse
|
3
|
Wang Y, Carta G. Separation of monoclonal antibody monomer-dimer mixtures by gradient elution with ceramic hydroxyapatite. J Chromatogr A 2020; 1629:461465. [PMID: 32827903 DOI: 10.1016/j.chroma.2020.461465] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 07/07/2020] [Accepted: 08/07/2020] [Indexed: 10/23/2022]
Abstract
Modeling the chromatographic separations of proteins at manufacturing scale is important since downstream processing costs are often dominant. At such scales, the columns are highly overloaded heightening the challenge of predicting performance. In this work, the separation of a monoclonal antibody monomer-dimer mixture is conducted by gradient elution chromatography with ceramic hydroxyapatite (CHT) columns Type I and Type II under overloaded conditions. Phosphate gradients are shown to be preferable over sodium chloride gradients since the latter result in undesirable pH transitions generated within the column itself. Using sodium phosphate gradients separation is obtained with both CHT types, achieving approximately 90% recovery at 99% monomer purity starting with a mixture containing 30% dimer at total protein loads up to 30 mg/mL. Because of its higher binding capacity, even higher loadings can be obtained with CHT Type I without monomer breakthrough. A hybrid model is developed to describe the separation. The model, based on an empirical description of two-component, competitive isotherms at low sodium phosphate concentration coupled with the stoichiometric displacement model at higher sodium phosphate concentrations, is in good agreement with the experiments using the linear driving force (LDF) approximation to describe adsorption/desorption kinetics. The same LDF rate coefficient predicts the separation at loadings between 0.8 and 30 mg/mL. The model developed in this work can be used as a general tool to optimize operating conditions, understand what factors limit performance, and compare different operating modes.
Collapse
Affiliation(s)
- Yiran Wang
- Department of Chemical Engineering, University of Virginia, Charlottesville, VA, USA
| | - Giorgio Carta
- Department of Chemical Engineering, University of Virginia, Charlottesville, VA, USA.
| |
Collapse
|
4
|
Rojas-Montoya ID, Fosado-Esquivel P, Henao-Holguín LV, Esperanza-Villegas AE, Bernad-Bernad M, Gracia-Mora J. Adsorption/desorption studies of norfloxacin on brushite nanoparticles from reverse microemulsions. ADSORPTION 2019. [DOI: 10.1007/s10450-019-00138-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
5
|
Itoh D, Yoshimoto N, Yamamoto S. Retention Mechanism of Proteins in Hydroxyapatite Chromatography - Multimodal Interaction Based Protein Separations: A Model Study. Curr Protein Pept Sci 2019; 20:75-81. [PMID: 29065831 PMCID: PMC6249711 DOI: 10.2174/1389203718666171024122106] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 07/01/2017] [Accepted: 09/22/2017] [Indexed: 11/25/2022]
Abstract
BACKGROUND Retention mechanism of proteins in hydroxyapatite chromatography (HAC) was investigated by linear gradient elution experiments (LGE). MATERIALS AND METHODS Several mobile phase (buffer) solution strategies and solutes were evaluated in order to probe the relative contributions of two adsorption sites of hydroxyapatite (HA) particles, C-site due to Ca (metal affinity) and P-site due to PO4 (cation-exchange). When P-site was blocked, two basic proteins, lysozyme (Lys) and ribonuclease A(RNase), were not retained whereas cytochrome C(Cyt C) and lactoferrin (LF) were retained and also retention of acidic proteins became stronger as the repulsion due to P-site was eliminated. The number of the binding site B values determined from LGE also increased, which also showed reduction of repulsion forces. CONCLUSION The selectivity (retention) of four basic proteins (RNase, Lys, Cyt C, LF) in HAC was different from that in ion-exchange chromatography. Moreover, it was possible to tune the selectivity by using NaCl gradient.
Collapse
Affiliation(s)
- Daisuke Itoh
- Bio-Process Engineering Laboratory, Graduate School of Medicine, Biomedical Engineering Center (YUBEC),
Yamaguchi University, Tokiwadai, Ube755-8611, Japan
| | - Noriko Yoshimoto
- Bio-Process Engineering Laboratory, Graduate School of Medicine, Biomedical Engineering Center (YUBEC),
Yamaguchi University, Tokiwadai, Ube755-8611, Japan
| | - Shuichi Yamamoto
- Bio-Process Engineering Laboratory, Graduate School of Medicine, Biomedical Engineering Center (YUBEC),
Yamaguchi University, Tokiwadai, Ube755-8611, Japan
| |
Collapse
|
6
|
Dimasi N, Fleming R, Wu H, Gao C. Molecular engineering strategies and methods for the expression and purification of IgG1-based bispecific bivalent antibodies. Methods 2018; 154:77-86. [PMID: 30102989 DOI: 10.1016/j.ymeth.2018.08.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 08/03/2018] [Accepted: 08/08/2018] [Indexed: 12/14/2022] Open
Abstract
In recent years, bispecific antibodies (BisAbs) have emerged as novel pharmaceutical candidates owing to their ability to engage two disease mediators simultaneously, thus providing a possible alternative therapeutic approach in complex diseases such as cancer and inflammation. Here we provide an overview of the molecular design, recombinant expression in mammalian cells and purification of BisAbs based on full-length IgG-scFv formats. Practical considerations and strategies to optimize transient expression and purification are also discussed.
Collapse
Affiliation(s)
- N Dimasi
- Antibody Discovery and Protein Engineering, MedImmune, Gaithersburg, MD, USA.
| | - R Fleming
- Antibody Discovery and Protein Engineering, MedImmune, Gaithersburg, MD, USA
| | - H Wu
- Antibody Discovery and Protein Engineering, MedImmune, Gaithersburg, MD, USA
| | - C Gao
- Antibody Discovery and Protein Engineering, MedImmune, Gaithersburg, MD, USA.
| |
Collapse
|
7
|
Smith ER, Hewitson TD, Hanssen E, Holt SG. Biochemical transformation of calciprotein particles in uraemia. Bone 2018; 110:355-367. [PMID: 29499417 DOI: 10.1016/j.bone.2018.02.023] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 02/05/2018] [Accepted: 02/23/2018] [Indexed: 01/25/2023]
Abstract
Calciprotein particles (CPP) have emerged as nanoscale mediators of phosphate-induced toxicity in Chronic Kidney Disease (CKD). Uraemia favors ripening of the particle mineral content from the amorphous (CPP-I) to the crystalline state (CPP-II) but the pathophysiological significance of this transformation is uncertain. Clinical studies suggest an association between CPP ripening and inflammation, vascular dysfunction and mortality. Although ripening has been modelled in vitro, it is unknown whether particles synthesised in serum resemble their in vivo counterparts. Here we show that in vitro formation and ripening of CPP in uraemic serum is characterised by extensive physiochemical rearrangements involving the accretion of mineral, loss of surface charge and transformation of the mineral phase from a spherical arrangement of diffuse domains of amorphous calcium phosphate to densely-packed lamellar aggregates of crystalline hydroxyapatite. These physiochemical changes were paralleled by enrichment with small soluble apolipoproteins, complement factors and the binding of fatty acids. In comparison, endogenous CPP represent a highly heterogeneous mixture of particles with characteristics mostly intermediate to synthetic CPP-I and CPP-II, but are also uniquely enriched for carbonate-substituted apatite, DNA fragments, small RNA and microbe-derived components. Pathway analysis of protein enrichment predicted the activation of cell death and pro-inflammatory processes by endogenous CPP and synthetic CPP-II alike. This comprehensive characterisation validates the use of CPP-II generated in uraemic serum as in vitro equivalents of their endogenous counterparts and provides insight into the nature and pathological significance of CPP in CKD, which may act as vehicles for various bioactive ligands.
Collapse
Affiliation(s)
- Edward R Smith
- Department of Nephrology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia; Department of Medicine - Royal Melbourne Hospital, University of Melbourne, Melbourne, Victoria, Australia.
| | - Tim D Hewitson
- Department of Nephrology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia; Department of Medicine - Royal Melbourne Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | - Eric Hanssen
- Melbourne Advanced Microscopy Facility and Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Victoria, Australia
| | - Stephen G Holt
- Department of Nephrology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia; Department of Medicine - Royal Melbourne Hospital, University of Melbourne, Melbourne, Victoria, Australia
| |
Collapse
|
8
|
A facile green synthesis of silver nanoparticle-decorated hydroxyapatite for efficient catalytic activity towards 4-nitrophenol reduction. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3161-7] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
9
|
Lu HL, Lin DQ, Zhang QL, Yao SJ. Evaluation on adsorption selectivity of immunoglobulin G with 2-mercapto-1-methyl-imidazole-based hydrophobic charge-induction resins. Biochem Eng J 2017. [DOI: 10.1016/j.bej.2016.12.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
10
|
Synthesis and characterization of silver doped hydroxyapatite nanocomposite coatings and evaluation of their antibacterial and corrosion resistance properties in simulated body fluid. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:675-84. [DOI: 10.1016/j.msec.2016.07.057] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 06/21/2016] [Accepted: 07/20/2016] [Indexed: 02/03/2023]
|
11
|
Levy NE, Valente KN, Lee KH, Lenhoff AM. Host cell protein impurities in chromatographic polishing steps for monoclonal antibody purification. Biotechnol Bioeng 2015; 113:1260-72. [DOI: 10.1002/bit.25882] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 10/19/2015] [Accepted: 11/05/2015] [Indexed: 12/24/2022]
Affiliation(s)
- Nicholas E. Levy
- Department of Chemical and Biomolecular EngineeringUniversity of DelawareNewarkDelaware19716
| | - Kristin N. Valente
- Department of Chemical and Biomolecular EngineeringUniversity of DelawareNewarkDelaware19716
- Delaware Biotechnology InstituteNewarkDelaware19711
| | - Kelvin H. Lee
- Department of Chemical and Biomolecular EngineeringUniversity of DelawareNewarkDelaware19716
- Delaware Biotechnology InstituteNewarkDelaware19711
| | - Abraham M. Lenhoff
- Department of Chemical and Biomolecular EngineeringUniversity of DelawareNewarkDelaware19716
| |
Collapse
|
12
|
Bell RV, Rochford LA, de Rosales RTM, Stevens M, Weaver JVM, Bon SAF. Fabrication of calcium phosphate microcapsules using emulsion droplets stabilized with branched copolymers as templates. J Mater Chem B 2015; 3:5544-5552. [DOI: 10.1039/c5tb00893j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
An efficient emulsion templating route using branched copolymers as droplet stabilizers for the synthesis of fluorescently labelled calcium phosphate capsules.
Collapse
Affiliation(s)
- Robert V. Bell
- Department of Chemistry
- University of Warwick
- Coventry CV4 7AL
- UK
- Department of Materials
| | | | | | - Molly Stevens
- Department of Materials
- Imperial College London
- London SW7 2AZ
- UK
| | | | | |
Collapse
|
13
|
Lin K, Wu C, Chang J. Advances in synthesis of calcium phosphate crystals with controlled size and shape. Acta Biomater 2014; 10:4071-102. [PMID: 24954909 DOI: 10.1016/j.actbio.2014.06.017] [Citation(s) in RCA: 196] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 06/06/2014] [Accepted: 06/11/2014] [Indexed: 01/02/2023]
Abstract
Calcium phosphate (CaP) materials have a wide range of applications, including biomaterials, adsorbents, chemical engineering materials, catalysts and catalyst supports and mechanical reinforcements. The size and shape of CaP crystals and aggregates play critical roles in their applications. The main inorganic building blocks of human bones and teeth are nanocrystalline CaPs; recently, much progress has been made in the application of CaP nanocrystals and their composites for clinical repair of damaged bone and tooth. For example, CaPs with special micro- and nanostructures can better imitate the biomimetic features of human bone and tooth, and this offers significantly enhanced biological performances. Therefore, the design of CaP nano-/microcrystals, and the shape and hierarchical structures of CaPs, have great potential to revolutionize the field of hard tissue engineering, starting from bone/tooth repair and augmentation to controlled drug delivery devices. Previously, a number of reviews have reported the synthesis and properties of CaP materials, especially for hydroxyapatite (HAp). However, most of them mainly focused on the characterizations and physicochemical and biological properties of HAp particles. There are few reviews about the control of particle size and size distribution of CaPs, and in particular the control of nano-/microstructures on bulk CaP ceramic surfaces, which is a big challenge technically and may have great potential in tissue engineering applications. This review summarizes the current state of the art for the synthesis of CaP crystals with controlled sizes from the nano- to the macroscale, and the diverse shapes including the zero-dimensional shapes of particles and spheres, the one-dimensional shapes of rods, fibers, wires and whiskers, the two-dimensional shapes of sheets, disks, plates, belts, ribbons and flakes and the three-dimensional (3-D) shapes of porous, hollow, and biomimetic structures similar to biological bone and tooth. In addition, this review will also summarize studies on the controlled formation of nano-/microstructures on the surface of bulk ceramics, and the preparation of macroscopical bone grafts with 3-D architecture nano-/microstructured surfaces. Moreover, the possible directions of future research and development in this field, such as the detailed mechanisms behind the size and shape control in various strategies, the importance of theoretical simulation, self-assembly, biomineralization and sacrificial precursor strategies in the fabrication of biomimetic bone-like and enamel-like CaP materials are proposed.
Collapse
Affiliation(s)
- Kaili Lin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China.
| | - Chengtie Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China
| | - Jiang Chang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China.
| |
Collapse
|
14
|
Technology trends in antibody purification. J Chromatogr A 2012; 1221:57-70. [DOI: 10.1016/j.chroma.2011.10.034] [Citation(s) in RCA: 187] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2011] [Revised: 10/09/2011] [Accepted: 10/12/2011] [Indexed: 01/21/2023]
|
15
|
Isolation and purification of recombinant proteins, antibodies and plasmid DNA with hydroxyapatite chromatography. Biotechnol J 2011; 7:90-102. [DOI: 10.1002/biot.201100015] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Revised: 09/27/2011] [Accepted: 11/04/2011] [Indexed: 11/07/2022]
|
16
|
|