1
|
Design and synthesis of polyacrylic acid/deoxycholic acid-modified chitosan copolymer and a close inspection of human growth hormone-copolymer interactions: An experimental and computational study. Colloids Surf B Biointerfaces 2021; 206:111956. [PMID: 34218011 DOI: 10.1016/j.colsurfb.2021.111956] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/17/2021] [Accepted: 06/25/2021] [Indexed: 11/22/2022]
Abstract
Despite efforts to achieve a long-acting formulation for human growth hormone (hGH), daily injections are still prescribed for children with growth hormone deficiency. To grapple with the issue, acquiring a deep knowledge of the protein and understanding its interaction mechanism with the carrier can be beneficial. Herein, we designed and synthesized a novel chitosan-based copolymer and investigated its interaction with hGH using a combination of experimental and computational strategies. To construct the amphiphilic triblock copolymers (CDP), we grafted deoxycholic acid (DCA) and polyacrylic acid (PAA) onto the chitosan chains, and Fourier-transform infrared (FTIR) analysis confirmed the proper formation of CDP. Circular dichroism (CD) demonstrated the preservation of the secondary structure of hGH interacting with CDP, and, further, fluorescence spectroscopy proved the stability of the tertiary structure of the protein. Applying molecular dynamics simulation (MD), we examined the dynamics and integrity of hGH in the presence of the copolymer and compared its behavior with the protein in aquatic environments. Additionally, energy and contact analysis illustrated that the residues involved in the interaction were located predominantly in the connecting loops, and van der Waals (vdW) and electrostatic interactions were the main driving forces of the polymer-protein complex formation. This research's main aim was to trace the protein-polymer interaction's mechanism. We anticipate that the utility of the copolymer can address the challenges of fabricating a new sustained-release delivery platform for therapeutic proteins.
Collapse
|
2
|
Doshi N, Fish R, Padilla K, Yadav S. Evaluation of Super Refined™ Polysorbate 20 With Respect to Polysorbate Degradation, Particle Formation and Protein Stability. J Pharm Sci 2020; 109:2986-2995. [DOI: 10.1016/j.xphs.2020.06.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 06/03/2020] [Accepted: 06/29/2020] [Indexed: 01/11/2023]
|
3
|
Cai Z, Wei Q, Li X, Luan Y, Dong S. Chemical Syntheses and Biological Evaluation of CXCL14 and Its Site-Selectively Modified Methionine Sulfoxide-Containing Derivatives. J Org Chem 2019; 85:1740-1747. [PMID: 31813223 DOI: 10.1021/acs.joc.9b02730] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The access to methionine sulfoxide [Met(O)]-containing proteins is particularly valuable for studying this important type of post-translational modification (PTM). However, the lack of selective in vitro oxidation methods makes it difficult to obtain homogeneous proteins with accurate and controllable incorporation of Met(O), particularly the ones with multiple methionines. Here, we report a chemical approach to synthesize methionine-oxidized human chemokine CXCL14 in a site-selective manner. The in vitro chemotaxis activities of synthetic proteins have also been evaluated.
Collapse
Affiliation(s)
- Zonghui Cai
- School of Materials Science and Engineering , University of Science and Technology Beijing , 30 Xueyuan Road, Haidian District , Beijing 100083 , People's Republic of China
| | - Qijia Wei
- State Key Laboratory of Natural and Biomimetic Drugs, and Department of Chemical Biology, School of Pharmaceutical Sciences , Peking University , 38 Xueyuan Road, Haidian District , Beijing 100191 , People's Republic of China
| | - Xiujuan Li
- School of Materials Science and Engineering , University of Science and Technology Beijing , 30 Xueyuan Road, Haidian District , Beijing 100083 , People's Republic of China
| | - Yi Luan
- School of Materials Science and Engineering , University of Science and Technology Beijing , 30 Xueyuan Road, Haidian District , Beijing 100083 , People's Republic of China
| | - Suwei Dong
- State Key Laboratory of Natural and Biomimetic Drugs, and Department of Chemical Biology, School of Pharmaceutical Sciences , Peking University , 38 Xueyuan Road, Haidian District , Beijing 100191 , People's Republic of China
| |
Collapse
|
4
|
Herrington WF, Singh GP, Wu D, Barone PW, Hancock W, Ram RJ. Optical Detection of Degraded Therapeutic Proteins. Sci Rep 2018; 8:5089. [PMID: 29572496 PMCID: PMC5865131 DOI: 10.1038/s41598-018-23409-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 03/01/2018] [Indexed: 11/09/2022] Open
Abstract
The quality of therapeutic proteins such as hormones, subunit and conjugate vaccines, and antibodies is critical to the safety and efficacy of modern medicine. Identifying malformed proteins at the point-of-care can prevent adverse immune reactions in patients; this is of special concern when there is an insecure supply chain resulting in the delivery of degraded, or even counterfeit, drug product. Identification of degraded protein, for example human growth hormone, is demonstrated by applying automated anomaly detection algorithms. Detection of the degraded protein differs from previous applications of machine-learning and classification to spectral analysis: only example spectra of genuine, high-quality drug products are used to construct the classifier. The algorithm is tested on Raman spectra acquired on protein dilutions typical of formulated drug product and at sample volumes of 25 µL, below the typical overfill (waste) volumes present in vials of injectable drug product. The algorithm is demonstrated to correctly classify anomalous recombinant human growth hormone (rhGH) with 92% sensitivity and 98% specificity even when the algorithm has only previously encountered high-quality drug product.
Collapse
Affiliation(s)
- William F Herrington
- Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, United States.
| | - Gajendra P Singh
- Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, United States
| | - Di Wu
- Northeastern University, Boston, Massachusetts, 02115, United States
| | - Paul W Barone
- Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, United States
| | - William Hancock
- Northeastern University, Boston, Massachusetts, 02115, United States
| | - Rajeev J Ram
- Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, United States
| |
Collapse
|
5
|
Lanzilotto A, Kyropoulou M, Constable EC, Housecroft CE, Meier WP, Palivan CG. Porphyrin-polymer nanocompartments: singlet oxygen generation and antimicrobial activity. J Biol Inorg Chem 2018; 23:109-122. [PMID: 29218642 PMCID: PMC5756573 DOI: 10.1007/s00775-017-1514-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 11/12/2017] [Indexed: 11/28/2022]
Abstract
A new water-soluble photocatalyst for singlet oxygen generation is presented. Its absorption extends to the red part of the spectrum, showing activity up to irradiation at 660 nm. Its efficiency has been compared to that of a commercial analogue (Rose Bengal) for the oxidation of L-methionine. The quantitative and selective oxidation was promising enough to encapsulate the photocatalyst in polymersomes. The singlet oxygen generated in this way can diffuse and remain active for the oxidation of L-methionine outside the polymeric compartment. These results made us consider the use of these polymersomes for antimicrobial applications. E. coli colonies were subjected to oxidative stress using the photocatalyst-polymersome conjugates and nearly all the colonies were damaged upon extensive irradiation while under the same red LED light irradiation, liquid cultures in the absence of porphyrin or porphyrin-loaded polymersomes were unharmed.
Collapse
Affiliation(s)
- Angelo Lanzilotto
- Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, 4058, Basel, Switzerland
| | - Myrto Kyropoulou
- Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, 4058, Basel, Switzerland
| | - Edwin C Constable
- Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, 4058, Basel, Switzerland
| | - Catherine E Housecroft
- Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, 4058, Basel, Switzerland.
| | - Wolfgang P Meier
- Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, 4058, Basel, Switzerland
| | - Cornelia G Palivan
- Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, 4058, Basel, Switzerland.
| |
Collapse
|
6
|
Coupling of on-column trypsin digestion–peptide mapping and principal component analysis for stability and biosimilarity assessment of recombinant human growth hormone. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1072:105-115. [DOI: 10.1016/j.jchromb.2017.11.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 11/02/2017] [Accepted: 11/04/2017] [Indexed: 01/01/2023]
|
7
|
Torosantucci R, Schöneich C, Jiskoot W. Oxidation of Therapeutic Proteins and Peptides: Structural and Biological Consequences. Pharm Res 2013; 31:541-53. [DOI: 10.1007/s11095-013-1199-9] [Citation(s) in RCA: 117] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Accepted: 08/25/2013] [Indexed: 10/26/2022]
|
8
|
Mulinacci F, Poirier E, Capelle MA, Gurny R, Arvinte T. Influence of methionine oxidation on the aggregation of recombinant human growth hormone. Eur J Pharm Biopharm 2013; 85:42-52. [DOI: 10.1016/j.ejpb.2013.03.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 03/14/2013] [Accepted: 03/19/2013] [Indexed: 10/26/2022]
|
9
|
Tarrago L, Kaya A, Weerapana E, Marino SM, Gladyshev VN. Methionine sulfoxide reductases preferentially reduce unfolded oxidized proteins and protect cells from oxidative protein unfolding. J Biol Chem 2012; 287:24448-59. [PMID: 22628550 DOI: 10.1074/jbc.m112.374520] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Reduction of methionine sulfoxide (MetO) residues in proteins is catalyzed by methionine sulfoxide reductases A (MSRA) and B (MSRB), which act in a stereospecific manner. Catalytic properties of these enzymes were previously established mostly using low molecular weight MetO-containing compounds, whereas little is known about the catalysis of MetO reduction in proteins, the physiological substrates of MSRA and MSRB. In this work we exploited an NADPH-dependent thioredoxin system and determined the kinetic parameters of yeast MSRA and MSRB using three different MetO-containing proteins. Both enzymes showed Michaelis-Menten kinetics with the K(m) lower for protein than for small MetO-containing substrates. MSRA reduced both oxidized proteins and low molecular weight MetO-containing compounds with similar catalytic efficiencies, whereas MSRB was specialized for the reduction of MetO in proteins. Using oxidized glutathione S-transferase as a model substrate, we showed that both MSR types were more efficient in reducing MetO in unfolded than in folded proteins and that their activities increased with the unfolding state. Biochemical quantification and identification of MetO reduced in the substrates by mass spectrometry revealed that the increased activity was due to better access to oxidized MetO in unfolded proteins; it also showed that MSRA was intrinsically more active with unfolded proteins regardless of MetO availability. Moreover, MSRs most efficiently protected cells from oxidative stress that was accompanied by protein unfolding. Overall, this study indicates that MSRs serve a critical function in the folding process by repairing oxidatively damaged nascent polypeptides and unfolded proteins.
Collapse
Affiliation(s)
- Lionel Tarrago
- Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115, USA
| | | | | | | | | |
Collapse
|
10
|
Label-free differentiation of human pituitary adenomas by FT-IR spectroscopic imaging. Anal Bioanal Chem 2012; 403:727-35. [DOI: 10.1007/s00216-012-5824-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2011] [Revised: 01/29/2012] [Accepted: 02/01/2012] [Indexed: 01/13/2023]
|
11
|
Hawe A, Wiggenhorn M, van de Weert M, Garbe JHO, Mahler HC, Jiskoot W. Forced degradation of therapeutic proteins. J Pharm Sci 2011; 101:895-913. [PMID: 22083792 DOI: 10.1002/jps.22812] [Citation(s) in RCA: 183] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2011] [Revised: 10/17/2011] [Accepted: 10/18/2011] [Indexed: 01/16/2023]
Abstract
The scope of this paper is to review approaches used for forced degradation (synonym, stress testing) of therapeutic proteins. Forced degradation studies play a central role in the development of therapeutic proteins, for example, for candidate selection, molecule characterization, formulation development, assay development, and comparability studies. Typical stress methods are addressed within this review, such as exposure to elevated temperatures, freeze-thawing, mechanical stress, oxidation, light, as well as various materials and devices used in the clinics during final administration. Stability testing is briefly described as far as relevant to the discussion of forced degradation studies. Whereas stability-testing requirements are defined in regulatory guidelines, standard procedures for forced degradation of therapeutic proteins are largely unavailable, except for photostability. Possible selection criteria to identify appropriate stress conditions and recommendations for setting up forced degradation studies for the different phases of development of therapeutic proteins are presented.
Collapse
Affiliation(s)
- Andrea Hawe
- Division of Drug Delivery Technology, Leiden/Amsterdam Center for Drug Research, 2300 RA Leiden, The Netherlands
| | | | | | | | | | | |
Collapse
|